Cornelius Ice Maker CCM0322 User Manual
IMI CORNELIUS INC.  
www.cornelius.com  
Nordic Ice Maker  
Model CCM and CCU Series  
Service and Maintenance Manual  
Publication Number: 631806061  
Revision Date: May 1, 2008  
Revision: B  
Visit the IMI Cornelius web site at www.cornelius.com for all your Literature needs.  
CCM and CCU Series Service and Maintenance Manual  
Manual Number 631806061  
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Table Of Contents  
Table of Contents  
Table of Contents  
Page A1  
General Information  
How To Use This Manual  
Model And Serial Number Format  
Page A2  
Page A3  
Electrical And Mechanical Specifications  
Installation Guidelines  
Page A4-A5  
Page A6  
Electrical And Plumbing Requirements  
Remote Condenser Installation  
How The Machine Works  
Page A7-A12  
Page A13-A14  
Page A15  
Undercounter Model Bin Removal  
Page A16-A17  
Scheduled Maintenance  
Maintenance Procedure  
Cleaning and Sanitizing Instructions  
Winterizing Procedure  
Cabinet Care  
Page B1  
Page B1-B2  
Page B3  
Page B4  
Troubleshooting Trees  
How to Use The Troubleshooting Trees  
Troubleshooting Trees Table Of Contents  
Troubleshooting Trees  
Page C1  
Page C2  
Page C3-C18  
Water System  
Water Distribution And Components  
Page D1-D5  
Refrigeration System  
Refrigeration Cycle And Components  
Harvest Cycle  
Page E1  
Page E5  
Remote System  
Pump Down System  
Page E5-E6  
Page E7  
Refrigerant Specifications  
Page E8-E20  
Electrical System  
Control Circuit  
Page F1  
Compressor And Start Components  
Untimed Freeze Cycle  
Timed Freeze Cycle  
Harvest Cycle  
Pump Down System  
Bin Control  
Page F1-F2  
Page F3  
Page F4  
Page F5-F9  
Page F9  
Page F-9  
Page G1  
Wiring Diagrams  
Page A1  
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General Information  
How To Use This Manual  
Cornelius provides this manual as an aid to the service technician in installation, operation, and  
maintenance of the CCM/CCU Series (electro-mechanical) cube ice machines. If used properly  
this manual can also assist the service technician to troubleshoot and diagnose most of the  
problems that may occur with the machine.  
The first two sections of this manual provide general information and maintenance information.  
The remainder of the manual beginning with Section C provides troubleshooting and service  
information. Section C contains flow charts called troubleshooting trees. Page C-1 provides  
instructions on using the troubleshooting trees. Each troubleshooting tree is named to describe  
a particular problem with the operation of the machine.  
When following the troubleshooting trees, the service technician will be led through questions  
and checks and end up with a probable solution. When using the troubleshooting trees, it is  
important that the service technician understand the operation and adjustments of the  
components being checked and the component suspected of malfunctioning. A detailed  
description of the operation and adjustments of the components as well as other service  
information is available in the pages that follow Section C.  
Sections D, E, and F focus on a particular system in the ice machine: water distribution system,  
refrigeration system, and it is important that these sections be used together with the  
Troubleshooting Trees in Section C.  
Most aspects of the CCM/CCU Series machines are covered in this manual, however, should  
you encounter any conditions not addressed herein, please contact the Cornelius Technical  
Service Department for assistance. You may also e-mail the Cornelius Technical Service  
Department:  
E-Mail: [email protected]  
Website : www.cornelius.com  
Telephone Number  
800-238-3600  
All Departments  
Any Service communication must include:  
• Model Number  
• Serial number  
• A detailed explanation of the problem  
Note the warning symbol where it appears in this manual.  
It is an alert for important safety information on a hazard  
that might cause serious injury.  
Keep this manual for future reference.  
The CCM/CCU Series Service Parts Manuals are available separately.  
Cornelius products are not designed for outdoor installation.  
Page A2  
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General Information  
Model and Serial Number Format  
The serial number format and machine specifics are  
detailed on the data plate.  
Sample Data Plate  
Model Number  
CCM 06 30 A H  
1
2
Engineering Rev Level  
Voltage:1=115V, 2=230V, 3=230V 3ph 5=50Hz.  
Cube Size: H=Half Cube, F=Full Cube  
Condenser Type: A=Air, W=Water, R=Remote  
Cabinet Width (in inches)  
Approximate Production X 10 in 24 hours 70°F Air / 50°F Water  
Series: Cornelius Cuber Modular (U=Undercounter)  
Large data plate will be placed on the back of the unit.  
Serial Number  
87 A 0708 GC 004  
Sequencial Serial Number  
Product Line  
GC=Cuber  
GB=Remote Condenser  
GA= Dispenser  
Date Code, Year Month format. (2007 August 08)  
Revision Level (Internal)  
Manufacturing Facility  
Small data plate will be placed by the service valves.  
Note: The date code will change monthly and yearly to reflect the date of manufacture.  
Page A3  
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General Information  
Electrical and Mechanical Specifications, “CCM/CCU” Series  
Cycle Time  
Approx.  
Minutes  
Back  
Press.  
Approx.  
Head  
Press.  
Approx.  
Timer  
Initiate  
Setting  
Batch  
Weight  
Pounds  
Ref.  
Type  
Charge  
Ounces  
Volt. Cycle  
Phase  
Model  
70/50-90/70  
CCU0150A1  
CCU0150W1  
CCU0220A1  
CCU0220W1  
CCU0220A2  
CCU0220W2  
CCU0300A1  
CCU0300W1  
CCM0330A1  
CCM0330W1  
CCM0322A1  
CCM0322W1  
CCM0430A1  
CCM0430W1  
CCM0430A2  
CCM0430W2  
CCM0530A1  
CCM0530W1  
CCM0530R1  
CCM0522A1  
CCM0522W1  
CCM0630A2  
CCM0630W2  
CCM0630R2  
CCM0830A2  
CCM0830W2  
CCM0830R2  
CCM1030A2  
CCM1030W2  
CCM1030R2  
CCM1448A2  
CCM1448W2  
CCM1448R2  
CCM1448A2 1  
CCM1448W2 1  
CCM1448R2 1  
CCM1448A3  
CCM1448W3  
CCM1448R3  
CCM1448A3 1  
CCM1448W3 1  
CCM1448R3 1  
CCM1530R2  
CCM1530R2 1  
CCM1848W2  
CCM1848R2  
CCM1848W2 1  
CCM1848R2 1  
CCM1848W3  
CCM1848R3  
CCM1848W3 1  
CCM1848R3 1  
CCM2148W2  
CCM2148R2  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
12  
9
60 - 47  
60 - 47  
60 - 42  
60 - 41  
60 - 41  
60 - 41  
51 - 30  
60 - 27  
60 - 35  
60 - 35  
60 - 36  
60 - 36  
54 - 39  
60 - 38  
58 - 34  
57 - 37  
55 - 31  
48 - 31  
50 - 32  
56 - 39  
54 - 39  
60 - 46  
45 - 40  
44 - 42  
60 - 35  
60 - 35  
60 - 35  
60 - 37  
60 - 37  
60 - 36  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 34  
60 - 37  
60 - 53  
72 - 61  
60 - 35  
60 - 35  
60 - 53  
71 - 63  
60 - 35  
60 - 37  
205-400  
250  
47  
47  
42  
41  
41  
41  
33  
33  
36  
35  
36  
36  
44  
43  
43  
43  
37  
38  
39  
46  
44  
35  
34  
24 - 38  
22 - 28  
17 - 24  
17 - 20  
18 - 28  
19 - 23  
15 - 20  
12 - 15  
13 - 17  
13 - 16  
14 - 25  
12 - 17  
14 - 20  
14 - 18  
14 -19  
14 - 17  
13 - 16  
13 - 15  
13 - 16  
14 - 20  
14 - 17  
11 - 15  
11 - 13  
12 - 15  
11 - 18  
10 - 15  
9 - 16  
3
3
115-60-1  
115-60-1  
12  
218-400  
250  
3
115-60-1  
9
3
115-60-1  
12  
218-400  
250  
3
230-60-1  
9
3
230-60-1  
16  
218-400  
250  
3
115-60-1  
13  
3
115-60-1  
25  
200 - 400  
250  
3
115-60-1  
13  
3
115-60-1  
18  
200 - 400  
250  
3
115-60-1  
11  
3
115-60-1  
30  
200-400  
250  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
7
115-60-1  
14  
115-60-1  
30  
210 - 400  
250  
208/230-60-1  
208/230-60-1  
115-60-1  
14  
25  
217 - 400  
250  
15  
115-60-1  
132  
21  
240 - 400  
212 - 400  
250  
115-60-1  
115-60-1  
12  
115-60-1  
24  
200-400  
250  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-1  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-1  
208/230-60-1  
17  
132  
27  
240 - 400  
175 - 400  
250  
38  
35  
35  
35  
37  
37  
36  
35  
35  
35  
37  
32  
38  
35  
35  
35  
37  
34  
38  
35  
38  
34  
37  
38  
38  
35  
35  
38  
38  
35  
37  
24  
7
176  
34  
240 - 400  
175 - 400  
250  
7
9 - 15  
7
24  
9 - 13  
7
176  
104  
25  
240 - 400  
175 - 400  
250  
9 - 14  
7
11 - 17  
11 - 16  
11 - 17  
11 - 15  
11 - 14  
11 - 15  
12 - 20  
12 - 18  
12 - 20  
11 - 15  
11 - 13  
12 - 14  
11 - 16  
11 - 14  
11 - 17  
10 - 17  
11 - 13  
12 - 15  
10 - 16  
10 - 17  
11 - 13  
13 - 15  
9 - 14  
11  
11  
11  
11.6  
11.6  
11.6  
11  
11  
11  
11.6  
11.6  
11.6  
11  
11.6  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
240  
60  
192 - 400  
200 - 400  
250  
30  
240  
104  
25  
240 - 400  
175 - 400  
250  
240  
60  
240 - 400  
200 - 400  
250  
30  
240  
240  
240  
35  
240 - 400  
240 - 400  
240 - 400  
250  
400  
37  
240 - 400  
250  
272  
35  
240 - 400  
250  
400  
37  
240 - 400  
250  
272  
37  
240 - 400  
250  
400  
240 - 400  
9 - 14  
Page A4  
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General Information  
Electrical and Mechanical Specifications, “CCM/CCU” Series  
Cycle Time  
Approx.  
Minutes  
Back  
Press.  
Approx.  
Head  
Press.  
Approx.  
Timer  
Initiate  
Setting  
Batch  
Weight  
Pounds  
Ref.  
Type  
Charge  
Ounces  
Volt. Cycle  
Phase  
Model  
70/50-90/70  
CCM2148W2 1  
CCM2148R2 1  
R-404a  
R-404a  
44  
48 - 46  
62 - 56  
250  
34  
37  
11 - 12  
12 - 13  
14  
14  
208/230-60-1  
208/230-60-1  
272  
240 - 400  
CCM2148W3  
CCM2148R3  
CCM2148W3 1  
CCM2148R3 1  
R-404a  
R-404a  
R-404a  
R-404a  
37  
400  
44  
60 - 35  
60 - 35  
49 - 47  
64 - 58  
250  
35  
35  
34  
37  
9 - 13  
9 - 14  
14  
14  
14  
14  
208/230-60-3  
208/230-60-3  
208/230-60-3  
208/230-60-3  
240 - 400  
250  
12 - 13  
12 - 14  
272  
240 - 400  
Cycle Time  
Approx.  
Minutes  
Back  
Press.  
Approx.  
Head  
Press.  
Approx.  
Timer  
Initiate  
Setting  
Batch  
Weight  
Pounds  
Ref.  
Type  
Charge  
Ounces  
Volt. Phase  
Cycle  
Model  
70/50-90/80  
CCU0220A5  
CCU0220W5  
CCU0330A5  
CCU0330W5  
CCM0330A5  
CCM0330W5  
CCM0322A5  
CCM0430A5  
CCM0430W5  
CCM0522A5  
CCM0630A5  
CCM0630W5  
CCM0630R5  
CCM0830A5  
CCM0830W5  
CCM0830R5  
CCM1030A5  
CCM1030W5  
CCM1030R5  
CCM1448A5  
CCM1448W5  
CCM1448R5  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
R-404a  
12  
9
60 - 35  
60 - 35  
51 - 30  
60 - 27  
60 - 53  
48 - 47  
60 - 35  
56 - 31  
57 - 34  
55 - 38  
50 - 40  
47 - 45  
45 - 43  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
60 - 36  
60 - 35  
60 - 35  
60 - 35  
60 - 35  
175 - 400  
250  
45  
46  
33  
33  
32  
31  
35  
38  
41  
46  
35  
32  
35  
35  
35  
35  
35  
36  
35  
35  
35  
35  
22 - 32  
21 - 25  
15 - 20  
13 - 18  
12 - 16  
12 - 15  
13 - 20  
16 - 22  
14 - 17  
13 - 18  
13 - 18  
14 - 16  
15 - 18  
10 - 14  
10 - 17  
10 - 17  
10 - 17  
9 - 14  
3
3
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
220-240/50/1  
14  
218 - 400  
250  
3
13  
3
23  
200 - 400  
250  
3
12  
3
22  
175 - 400  
207-400  
250  
3
23  
5.5  
5.5  
5.5  
5.5  
5.5  
5.5  
7
13  
21  
200 - 400  
200 - 400  
250  
22  
14  
132  
24  
240 - 400  
250  
240  
176  
33  
240 - 400  
240 - 400  
175 - 400  
250  
7
7
7
24  
7
176  
104  
25  
240 - 400  
175 - 400  
250  
9 - 15  
7
13 - 21  
12 - 18  
14 - 19  
11  
11  
11  
240  
192 - 400  
CCM1448A5 1  
R-404a  
60  
60 - 35  
200- 400  
36  
12 - 16  
11.6  
220-240/50/1  
CCM1448W5 1  
CCM1448R5 1  
R-404a  
R-404a  
25  
60 - 35  
60 - 35  
250  
36  
39  
12 - 14  
12 - 15  
11.6  
11.6  
220-240/50/1  
220-240/50/1  
240  
240 - 400  
Page A5  
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General Information  
Installation Guidelines  
Note: Installation should be performed by a Cornelius trained Service Technician.  
For proper operation of the Cornelius ice machine, the following installation guidelines must be  
followed. Failure to do so may result in loss of production capacity, premature part failures, and  
may void all warranties.  
Ambient Operating Temperatures  
Minimum Operating Temperature: 50°F (10°C)  
Maximum Operating Temperature 100°F (38°C), 110°F (43°C) on 50 Hz. Models.  
Note: Cornelius products are not designed for outdoor installation.  
Incoming Water Supply (See Plumbing Diagram for line sizing Page A7-A12)  
Minimum incoming water temperature: 40°F (4.5°C)  
Maximum incoming water temperature: 100°F (38°C)  
Minimum incoming water pressure: 20 psi (1.4 bar)  
Maximum incoming water pressure: 60 psi (4.1 bar)  
Note: If water pressure exceeds 60 psi (4.1 bar), a water pressure regulator must be  
installed.  
Drains: All drain lines must be installed per local codes. Flexible tubing is not recommended.  
Route bin drain, purge drain and water condenser drain individually to a floor drain. The use of  
condensate pumps for draining water is not recommended by Cornelius. Cornelius assumes no  
responsibility for improperly installed equipment.  
Water Filtration: A water filter system should be installed with the ice machine.  
Clearance Requirements: Self contained air cooled ice machines must have a minimum of 6  
inches (15cm) of clearance at the rear, top, and sides of the ice machine for proper air circulation.  
Stacking: If the ice machines are to be stacked, refer to the instructions in the stacking kit.  
Cornelius does not endorse stacking air-cooled ice machines.  
Dispenser Application: A thermostatic bin control kit must be installed if the CCM series ice  
machine is placed on a dispenser. A bin top may or may not be required. (Exception is the  
CHD22/CHD30 Dispenser)  
Electrical Specifications: Refer to the serial plate at the rear of the ice machine or the charts on  
page A4 and A5.  
Adjustments  
Level the machine within 1/8 inch in all directions.  
Check the bin control for proper adjustment, Page F9  
Check the water in the water trough for proper level, Page D1  
Check the ice bridge for proper thickness, Page F4  
Check the cam switch adjustment. Page F8  
Check the water regulating valve adjustment if water cooled, Page E2  
Page A6  
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General Information  
Electrical and Plumbing Requirements: CCU0150 and CCU0220  
Note: The CCU0150 and CCU0220 do  
not have a splash curtain.  
These models utilize a thermostatic  
bin control in place of a mechanical  
bin switch.  
Page A7  
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General Information  
Electrical and Plumbing Requirements: CCU0300  
Note: The CCU0300 does not have a  
splash curtain.  
This model utilize a thermostatic bin  
control in place of a mechanical bin  
switch.  
Page A8  
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General Information  
Electrical and Plumbing Requirements: CCM0330, CCM0430, CCM0530, CCM0630, CCM0830  
and CCM1030 (30 Inch Wide Cubers)  
Page A9  
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General Information  
Electrical and Plumbing Requirements: CCM1448**1, CCM1848**1, CCM2148**1  
(48 Inch Wide Cubers)  
Page A10  
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General Information  
Electrical and Plumbing Requirements: CCM0322 and CCM0522 (22 Inch Wide Cubers)  
Page A11  
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General Information  
Electrical and Plumbing Requirements: CCM1530 Remote  
Page A12  
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General Information  
Remote Condenser Installation  
For proper operation of the Cornelius ice machine, the following installation guidelines must be followed. Failure to do  
so may result in loss of production capacity, premature part failure, and may void all warranties.  
Use the following for planning the placement of the remote condenser relative to the ice machine.  
Location Limits: Remote condenser location must not exceed ANY of the following:  
● Maximum rise from the ice machine to the remote condenser is 35 physical feet.  
● Maximum drop from the ice machine to the remote condenser is 15 physical feet.  
● Physical line set maximum length is 75 feet.  
● Calculated line set length maximum is 100 feet.  
● Ambient operating temperatures: -20°F (-28.9°C) to 120°F (48.9°C)  
Calculation Formula  
● Drop = dd x 6.6 (dd = distance in feet)  
● Rise = rd x 1.7 (rd = distance in feet)  
● Horizontal Run = hd x 1 (hd = distance in feet)  
● Calculation: Drop(s) + Rise(s) + Horizontal Run = dd+rd+hd=Calculated Line Length  
Configurations that do NOT meet these requirements must receive written authorization from  
Cornelius. This includes multipass or rack system remote condensers.  
Do NOT:  
● Route a line set that rises, then falls, then rises.  
● Route a line set that falls, then rises, then falls.  
Remote Condenser Location:  
Limited to a 25, 40, 45, 60 or a 75 foot length of precharged refrigerant tubing connecting the ice machine to the  
remote condenser. The remote condenser must be above or level with the ice machine. Select the best available  
location, protecting the remote condenser from extremes of dirt, dust and sun. Meet all applicable building codes.  
Usually the services of a licensed electrician are required.  
Roof Attachment:  
1. Install and attach the remote condenser to the roof of the building, using the methods and practices of construction  
that conform to the local building codes, including having a roofing contractor secure the remote condenser to the  
roof.  
2. Have an electrician connect the remote condenser fan motor wires to the ice machine, using the junction box at the  
back of the ice machine.  
Precharged Line Set Routing  
CAUTION: Do not connect the precharged tubing until all routing and forming of the tubing is complete. See  
the coupling instructions for connecting information.  
1. Each set of precharged tubing refrigerant lines consists of a 3/8 diameter liquid line and a 1/2 inch diameter  
discharge line. Both ends of each line have quick connect couplings, one end has a Schrader valve connection  
which goes to the condenser.  
Note: The openings in the building ceiling or wall, listed in the next step, are the minimum sizes recommended for  
passing the refrigerant lines through.  
2. Have the roofing contractor cut a minimum hole for the refrigerant lines of 2.50 inch. Check local codes, a separate  
hole may be required for the electrical power to the condenser.  
CAUTION: DO NOT KINK OR CRIMP REFRIGERANT TUBING WHEN INSTALLING IT.  
3. Route the refrigerant lines through the roof opening. Follow straight line routing whenever possible. Any excess  
tubing MUST remain within the building.  
4. Spiral the excess length of precharged tubing inside the building. Use a horizontal spiral to avoid any traps in the  
lines.  
5. Have the roofing contractor seal the holes in the roof per local codes.  
CAUTION: The couplings on the sets of precharged lines are self sealing when installed properly. Carefully  
follow the instructions in the RC manual.  
Page A13  
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General Information  
The following remote ice makers incorporate the mixing valve in the condenser. This configuration allows  
up to a 100 foot calculated remote line set run. Reference the diagram below to calculate the maximum 100  
foot line set run.  
Ice Machine Model Number  
CCM2148R*1  
CCM1848R*1  
CCM1448R*1  
CCM1530R*1  
CCM1030R  
Remote Condenser Model Number  
RC21002C  
RC21002C  
RC14002C  
RC14002C  
RC08002  
CCM0830R  
RC08002  
CCM0630R  
RC06002  
CCM0530R  
RC05001  
Limitations for remote machines that have the mixing valve mounted in the condenser.  
Maximum Rise is 35 feet.  
Maximum Drop is 15 feet.  
Maximum equivalent run is 100 feet.  
Formula for figuring maximum equivalent run is as follows:  
Rise x 1.7 + Drop x 6.6 + horizontal run = equivalent run.  
Examples: 35 ft. rise x 1.7 + 40 ft. horizontal = 99.5 equivalent feet line run  
35 ft. rise  
40 ft. horizontal  
34 ft. horizontal  
10 ft. drop x 6.6 + 34 ft horizontal = 100  
equivalent feet line run  
10 ft. drop  
Page A14  
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General Information  
How the CCM/CCU ice machine works  
A general description of how the CMM/CCU series cubers work is given below. The remainder of  
the manual provides more detail about the components and systems.  
With the ICE/OFF/WASH switch in the ICE position, the compressor, water pump and condenser  
fan motor (when applicable) will energize starting the freeze cycle.  
During the freeze cycle, water is circulated over the evaporator(s) where the ice cubes are formed.  
When the suction pressure has pulled down to the proper cut-in pressure of the timer initiate  
(pressure control), the contacts will close and energize the time delay module (timer). See Page  
A4-A5 for proper cut-in pressures. At this time the cubes will close to completion.  
The remaining portion of the freeze cycle is determined by the timer setting. The timer is pre-set at  
the factory to achieve the proper ice bridge thickness but may need to be adjusted upon initial  
start-up, see Page F4 for initial timer settings.  
Once the amount of time on the timer has passed, the control relay will be energized and the  
machine will enter harvest. Power is now supplied to the water purge valve, hot gas valve, and the  
harvest motor. The water purge valve opens, and allows the water pump to purge the water  
remaining in the water, removing impurities and sediment. This allows the machine to produce  
clear ice cubes and keep mineral build up at a minimum. The hot gas solenoid opens allowing hot  
gas to go directly to the evaporator, heating the evaporator and breaking the bond between the  
evaporator and the ice slab.  
The harvest assist motor, which is also energized during harvest, turns a slip clutch, which pushes  
a probe against the back of the ice slab. Once the evaporator has reached approximately 40°F  
(4.5°F) in temperature, the slip clutch overcomes the bonding of the ice to the evaporator and  
pushes the slab of ice off of the evaporator and into the storage bin. The clutch also actuates a  
switch that rides on the outer edge of the clutch. When the clutch completes one revolution, the  
switch is tripped and the machine enters the next freeze cycle.  
When ice drops into a full bin during harvest, the splash curtain is held open which activates a bin  
switch shutting the machine off. When ice is removed from the bin, the splash curtain will close  
and the machine will come back on.  
Page A15  
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General Information  
Undercounter Bin Removal-CCU0300 Series  
The storage bin can be removed by:  
1 Remove the lower grill.  
2. Remove two screws securing bin to cabinet base.  
3. Remove the thumbscrews from the back wall of the bin.  
4. Disconnect bin drain.  
5. Lift front of bin slightly and pull bin forward to remove.  
1
3
2
Page A16  
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General Information  
Undercounter Bin Removal-CCU0150/0220 Series  
The storage bin can be removed by:  
1. Remove the two screws at the rear of the top panel.  
2. Remove the two screws from the front panel.  
3. Remove two screws securing bin to cabinet base.  
4. Disconnect bin drain.  
5. Lift front of bin slightly and pull bin forward to remove.  
1
4
5
2
3
Page A17  
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Scheduled Maintenance  
Maintenance  
Note: Maintenance should be performed by a Cornelius trained Service Technician.  
Electrical shock and/or injury from moving parts inside this  
machine can cause serious injury. Disconnect electrical  
supply to machine prior to performing any adjustments or  
repairs.  
Failure to perform the required maintenance at the frequency specified will void warranty coverage  
in the event of a related failure. To insure economical, trouble free operation of the machine, the  
following maintenance is required every 6 months.  
Maintenance Procedure  
1. Clean the ice-making section per the instructions below. Cleaning should be performed a  
minimum of every 6 months. Local water conditions may require that cleaning be performed more  
often.  
2. Check ice bridge thickness. See page F4 for proper thickness and adjustment procedure.  
3. Check water level in trough. See page D1 for proper water level and adjustment.  
4. Clean the condenser (air-cooled machines) to insure unobstructed air flow.  
5. Check for leaks of any kind: Water, Refrigerant, Oil, Etc.  
6. Check the bin switch for proper adjustment. See page F9 for bin switch adjustment.  
7. Check the cam switch adjustment. See page F8 for cam switch adjustment.  
8. Check the water valve (water-cooled machines) for proper adjustment. See page E2.  
9. Check all electrical connection.  
10. Oil the fan motor if the motor has an oil fitting. (Self contained air-cooled models only)  
Cleaning and Sanitizing  
1. Harvest problems may occur if the following procedures are not performed every 6 months.  
2. Remove the ice machine front panel.  
3. Make sure that all the ice is off of the evaporator. If ice is being made, wait for cycle  
completion, then turn the machine “OFF” at the ICE/OFF/WASH selector switch.  
4. Remove or melt all ice in the storage bin.  
Page B1  
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Scheduled Maintenance  
Cleaning and Sanitizing (continued)  
5. Add recommended amount of approved Nickel Safe ice machine cleaner to the water trough  
according to label instructions on the container.  
6. Initiate the wash cycle at the ICE/OFF/WASH switch by placing the switch in the “WASH”  
position. Allow the cleaner to circulate for approximately 15 minutes to remove mineral  
deposits.  
7. Depress the purge switch and hold until the ice machine cleaner has been flushed down the  
drain and diluted by fresh incoming water.  
8. Terminate the wash cycle at the ICE/OFF/WASH switch by placing the switch in the “OFF”  
position. Remove the splash curtain and inspect the evaporator and water spillway to assure all  
mineral residue has been removed.  
9. If necessary, wipe the evaporator, spillway and other water transport surfaces with a clean soft  
cloth to remove any remaining residue. If necessary, remove the water distribution tube,  
disassemble and clean with a bottlebrush, see page D2. Reassemble all components and  
repeat steps 4 through 7 as required to remove residue.  
10. Turn OFF ice machine water supply and clean the water trough thoroughly to remove all scale  
or slime build-up. If necessary, remove the water trough to reach all splash areas and float.  
11. Prepare 1½ to 2 gallons (5.7 to 7.5 liters) of approved (EPA/FDA) sodium hypochloride food  
equipment sanitizer to form a solution with 100 to 200 ppm free chlorine yield.  
12. Add enough sanitizing solution to fill the water trough to overflowing and place the  
ICE/OFF/WASH switch to the “WASH” position and allow circulation to occur for 10 minutes  
and inspect all disassembled fittings for leaks. During this time, wipe down all other ice  
machine splash areas, plus the interior surfaces of the bin, deflector and door with the  
remaining sanitizing solution. Inspect to insure that all functional parts, fasteners, thermostat  
bulbs (if used), etc. are in place.  
13. Depress the purge switch and hold until sanitizer has been flushed down the drain. Turn ON  
the ice machine water supply and continue to purge to the diluted sanitizing solution for another  
1 to 2 minutes.  
14. Place the ICE/OFF/WASH switch to the “ICE” position and replace the front panel.  
15. Discard the first two ice harvests.  
Page B2  
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Winterizing Procedures  
Winterizing Procedures  
Important!  
Whenever the ice machine is taken out of operation during the winter months, the procedure below  
must be performed. Failure to do so may cause serious damage.  
1. Turn off water to machine.  
2. Make sure all ice is off of the evaporator(s). If ice is being made, initiate harvest or wait for  
cycle completion.  
3. Place the ICE/OFF/WASH switch to the “OFF” position.  
4. Disconnect the tubing between the water pump discharge and water distribution tube.  
5. Drain the water system completely.  
6. On water cooled machines, hold the water regulating valve  
open by prying upward on the water valve spring with a  
screwdriver while using compressed air to blow all the water out  
of the condenser.  
7. Remove all of the ice in the storage bin and discard.  
Page B3  
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Cabinet Care  
Cleaning stainless steel  
Commercial grades of stainless steel are susceptible to rusting. It is important that you properly  
care for the stainless steel surfaces of your ice machine and bin to avoid the possibility of rust or  
corrosion. Use the following recommended guidelines for keeping your stainless steel looking like  
new:  
1. Clean the stainless steel thoroughly once a week. Clean frequently to avoid build-up of  
hard, stubborn stains. Also, hard water stains left to sit can weaken the steel's corrosion  
resistance and lead to rust. Use a nonabrasive cloth or sponge, working with, not across, the  
grain.  
2. Don't use abrasive tools to clean the steel surface. Do not use steel wool, abrasive sponge  
pads, wire brushes or scrapers to clean the steel. Such tools can break through the "passivation"  
layer - the thin layer on the surface of stainless steel that protects it from corrosion.  
3. Don't use cleaners that use chlorine or chlorides. Don't use chlorine bleach or products like  
Comet to clean the steel. Chlorides break down the passivation layer and can cause rusting.  
4. Rinse with clean water. If chlorinated cleansers are used, you must thoroughly rinse the  
surface with clean water and wipe dry immediately.  
5. Use the right cleaning agent. The table below lists the recommended cleaning agents for  
common stainless steel cleaning problems:  
Cleaning Activity  
Cleaning Agent  
Method of Application  
Routine cleaning  
Soap, Ammonia, Windex, or  
detergent with water.  
Fantastik, 409 Spic’nSpan  
Liquid are also approve for  
Stainless Steel.  
Apply with a clean cloth  
or sponge. Rinse with  
clean water and wipe dry.  
Removing grease or  
fatty acids  
Easy-Off or similar oven  
cleaners.  
Apply generously, allow  
to stand for 15-20 minutes.  
Rinse with clean water.  
Repeat as required.  
Removing hard water spots  
and scale.  
Vinegar  
Swab or wipe with clean cloth.  
Rinse with clean water and  
dry.  
Page B4  
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Troubleshooting Trees  
How To Use The Troubleshooting Trees  
The troubleshooting trees were developed to be used in conjunction with the service information in  
the sections that follow. If used together as intended, these two parts of the manual will allow the  
ice machine service technician to quickly diagnose many of the problems encountered with the ice  
machines. When used as designed, the troubleshooting trees can lead you from a general  
symptom to the most likely component to suspect as the cause of the problem. The trees are not  
designed to be “parts changer guides”: please do not use them as such.  
Components returned to the factory for warranty are tested by the factory and will not be covered  
under the warranty policy if they are not defective.  
The troubleshooting trees are made of three types of boxes:  
?
9
!
QUESTION boxes (Circle) ask a yes/no question and the answer will lead to either another  
question box, a check box or a solution box.  
CHECK boxes (Rectangle) will suggest a point to check for proper operation, and will often refer  
you to a page in the service information sections of this manual. The result of the check may lead  
to another box, or a solution box.  
SOLUTION boxes (Hexagon) suggest the most likely component to cause the malfunction  
described in the heading of the tree. When reaching a solution box, DO NOT immediately assume  
the component is defective. The final step is to verify that the component is indeed defective, by  
using the service information in the sections that follow.  
To use the troubleshooting trees, first find the page with the heading describing the type of  
problem occurring. Begin at the top of the page and follow the tree, step-by-step. When a check  
box is reached, it may be necessary to refer to another section in the manual.  
Once a solution box is reached, refer to the appropriate section to verify that the component in the  
solution box is, indeed, the problem. Adjust, repair or replace the component as necessary.  
Page C1  
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Troubleshooting Trees  
Troubleshooting Trees Table Of Contents  
Machine Does Not Run  
C3  
Machine Runs, Does Not Make Ice  
Slow Production (Cube Formation Good)  
Low Suction Pressure  
C4 – C5  
C6  
C7  
High Suction Pressure  
C8  
Cubes Are Hollow  
C9  
Uneven Bridge Thickness  
C10  
C11  
C12  
C13  
C14  
C15  
C16  
C17  
C18  
Ice Bridge Thickness Varies Cycle To Cycle  
Machine Produces Cloudy Ice  
Poor Water Distribution Over Evaporator  
Machine Does Not Enter Harvest  
Machine Enters Harvest, Then Returns To Freeze Prematurely  
Length Of Harvest Excessive  
Ice Does Not Release From Evaporator  
Hot Evaporator, Low Suction Pressure (Remote Only)  
Page C2  
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Troubleshooting Trees  
Machine Does Not Run  
YES  
NOT OK  
TRIPPED  
OPEN  
Check for correct  
power supply to the  
machine  
Is the selector  
switch set to  
ICE?  
Correct field  
wiring deficiency  
OK  
NO  
Check High  
Pressure Safety  
Control  
Reset and  
identify reason  
for high head  
pressure  
Set selector  
Switch to the  
ICE position  
OK  
Check High  
Temperature Safety  
Control  
Replace or  
identify reason  
for being open.  
OK  
BAD  
Check Bin Control  
for proper  
adjustment, see  
page F9  
Adjust as  
required or  
replace if  
defective  
GOOD  
NO  
Selector Switch  
could be  
Is this a Remote  
unit?  
defective, see  
page F1  
OK  
OK  
NOT OK  
Is the Liquid line  
Solenoid energized  
and open?  
Find reason for  
non-activity or  
replace if  
defective  
Page C3  
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Troubleshooting Trees  
Machine Runs, Does Not Make Ice  
YES  
GO TO PAGE C5  
Is water  
Is the  
running over  
the  
compressor  
running?  
evaporator?  
NO  
NO  
Go to the  
Troubleshooting  
Tree on page  
C12  
GOOD  
Check for power to  
the compressor  
contactor coil  
Check contactor for  
bad contactor or coil.  
Replace if defective  
OK  
Compressor or  
Start  
Components  
could be  
defective, see  
page F2  
YES  
Check High  
Pressure reset if  
necessary  
Does the unit  
have a remote  
condenser?  
OK  
NO  
OK  
Check Selector  
Switch,  
Replace if defective  
Continue if the  
machine has a  
remote  
condenser  
OK  
HIGH  
Pumpdown  
Control possibly  
bad  
Check the suction  
pressure, is it low or  
high?  
LOW  
OK  
Liquid Line  
Solenoid not  
opening  
Check refrigerant  
charge  
Page C4  
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Troubleshooting Trees  
Machine Runs, Does Not Make Ice (continued)  
HIGH OR NORMAL  
SUCTION  
If head pressure is  
also high, make sure  
Condenser is clean  
and machine has  
good air flow  
Is water  
leaking out of  
the Purge  
Drain or Water  
Trough?  
NO  
Check refrigerant  
pressures, see page  
E1  
LOW SUCTION  
OK  
Recover and weigh  
in refrigerant charge  
Check Hot Gas  
Valve for leakage  
during freeze, see  
page E5  
YES  
OK  
OK  
Repair water  
leakage defect  
Low side  
restriction or  
defective TXV  
Check for inefficient  
Compressor  
Page C5  
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Troubleshooting Trees  
Slow Production (Cube Formation Good)  
Does  
YES  
OK  
installation  
Check for excessive  
head pressure  
Check refrigeration  
system, Section E  
meet  
guidelines?  
NO  
TOO HIGH  
Correct any  
installation  
defects  
YES  
AIR  
Is this unit air  
Is the Air  
Check refrigeration  
system, Section E  
cooled or  
water cooled?  
Condenser  
clean?  
NO  
WATER  
Clean  
Condenser and  
Condenser Fan  
Blade  
NOT OK  
Check Water  
Regulating Valve,  
See page E2  
Adjust or  
replace Water  
Regulating  
Valve  
OK  
See Condenser  
service information  
page E2  
Page C6  
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Troubleshooting Trees  
Low Suction Pressure  
NO  
Correct  
deficiency in  
installation  
Does  
installation  
meet  
guidelines?  
YES  
NO  
Go to  
Troubleshooting  
Tree on page  
C12  
Is the water  
flow over the  
Evaporator  
correct?  
YES  
Low charge,  
locate and  
repair leak,  
evacuate and  
recharge  
NOT OK  
NO  
Check for correct  
head pressure, see  
page E10  
Is the  
machine a  
remote unit?  
system  
YES  
See  
OK  
Troubleshooting  
Tree page C18  
DRY SYSTEM  
NOT OK  
Check TXV for  
moisture based  
restriction  
Check for refrigerant  
tubing restriction,  
crimps, etc.  
Correct  
restricted tubing  
OK  
NOT OK  
Check Evaporator  
coil separation, see  
page E4  
Replace  
defective  
Evaporator  
WET SYSTEM  
OK  
Replace drier,  
evacuate and  
recharge  
TXV possibly  
defective, see  
page E3 and  
page E4  
system  
Page C7  
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Troubleshooting Trees  
High Suction Pressure  
Have you  
checked the  
“Slow  
Production”  
Tree?  
NO  
Go to “Slow  
Production”  
Troubleshooting  
Tree  
Replace  
Compressor  
YES  
NOT OK  
NO  
OK  
Is the head  
pressure also  
high?  
Check Hot Gas  
Valve, see page E5  
Check Compressor,  
see page E1  
OK  
YES  
NOT OK  
TXV could be  
defective, see  
Expansion  
Valve, see page  
E3 and E4  
Hot Gas Valve  
is possibility  
defective  
Is the machine  
installed to  
specifications?  
NO  
Correct  
installation  
defects  
YES  
Repair or  
replace  
defective part  
YES  
TVX Thermal  
bulb loose or  
TXV could be  
defective  
Clean the  
Condenser  
Is the  
Condenser  
dirty?  
NOT OK  
STILL TOO  
HIGH  
NO  
Check Condenser  
Fan Motor and  
Blade for proper  
operation, and/or  
Water Valve or  
Mixing Valve  
OK  
OK  
Check for leaking  
Purge valve  
Evacuate and  
recharge system  
Page C8  
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Troubleshooting Trees  
Cubes Are Hollow  
NO  
YES  
YES  
Is the water  
temperature  
above 100°F  
(38°C)?  
Is there good  
water flow  
over the  
Is water  
leaking from  
the Purge  
Drain?  
Purge Valve has  
an obstruction  
or could be  
Evaporator?  
defective  
YES  
NO  
NO  
OK  
Water  
temperature too  
high, correct  
water  
Go to the “Poor  
Water Distribution  
Over Evaporator”  
Troubleshooting  
Tree, page C13  
Timer Module  
requires  
adjustment or  
could be  
Check Timer for  
proper setting, see  
page F4  
temperature  
defective  
NOT OK  
Timer Initiate  
Control out of  
adjustment of  
defective  
Page C9  
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Troubleshooting Trees  
Uneven Bridge Thickness  
Make sure  
supply water  
temperature is  
below 100°F  
(38°C)  
OK  
YES  
Problem in  
water system,  
see pages D1  
and D2.  
Is water  
running into  
the bin?  
NO  
Serpentine coil  
on back of  
evaporator  
could be  
separated, see  
page E4  
Are the  
Evaporator(s)  
flooded? See  
page E4 and  
E5  
YES  
NO  
Check for water  
leaking out of Purge  
Drain  
NO  
HIGH  
Check the suction  
pressure, is it high or  
low? See pageE1  
Hot Gas Valve  
could be  
leaking, see  
page E5  
Dirty or  
defective Purge  
Valve  
LOW  
Make sure the  
system is charged  
properly, recover the  
charge and weigh in  
the correct amount  
OK  
Refer to page  
E3 and E4 for  
TXV diagnosis.  
Page C10  
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Troubleshooting Trees  
Ice bridge Thickness Varies Cycle To Cycle  
Is air and  
water temps  
consistent and  
within  
NO  
Correct  
installation  
deficiency  
guidelines?  
YES  
NOT OK  
NOT OK  
NOT OK  
NOT OK  
Check the Purge  
Valve for water leaks  
Clean Purge  
Valve or replace  
if defective  
OK  
Check Hot Gas  
valve for proper  
operation  
Replace Hot  
Gas Valve  
OK  
Check Timer Initiate  
Control for proper  
operation  
Replace Timer  
Initiate  
OK  
Check Solid State  
Timer for proper  
operation  
Adjust Timer or  
replace if  
defective  
OK  
TXV(s) could be  
defective, see  
page E3 and E4  
Page C11  
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Troubleshooting Trees  
Machine Produces Cloudy Ice  
NO  
See “Poor  
Is water  
running evenly  
across the  
Water Running  
Over Evaporator  
Troubleshooting  
Tree page C13  
evaporator?  
YES  
NO  
Correct  
installation  
deficiency  
Doe machine  
meet  
installation  
guidelines?  
See Section A  
YES  
Cloudiness is a  
result of properties  
in the incoming  
supply water  
Page C12  
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Troubleshooting Trees  
Poor Water Distribution Over The Evaporator  
Is the water  
YES  
NO  
NO  
Correct  
deficiency in  
supply water  
pressure  
level in the  
Is the supply  
water  
pressure  
correct?  
Is the machine  
level?  
Water Trough  
correct? See  
Section D  
YES  
YES  
NO  
YES  
Check Water  
Distribution Tube for  
obstructions or  
improper assembly  
See Section D  
Purge valve  
stuck open,  
clean or replace  
if defective  
Is water  
leaking from  
the Purge  
Drain?  
Level the  
machine  
NO  
Float Valve not  
adjusted  
properly or  
could be  
OBSTRUCTED  
CLEAR  
defective  
Clean Water  
Distribution  
Tube; insure  
that it is  
assembled  
correctly  
Clean  
GOOD  
Evaporator and  
Spillway. See  
Section B for  
cleaning  
Check Water Pump  
for proper operation  
instructions  
BAD  
Water Pump  
obstructed or  
may be  
defective  
Page C13  
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Troubleshooting Trees  
Machine Does Not Enter Harvest  
NO  
NO  
OK  
Check Purge Valve  
to make sure it is not  
leaking, if it is  
replace valve or  
remove obstruction  
Will suction  
pressure drop  
below cut-in of  
Timer Initiate?  
Is the freeze  
Hot Gas Valve  
could be leaking  
pattern on the  
Evaporator  
even?  
YES  
OK  
OK  
TXV(s) may be  
stuck open, see  
page E3 and E4  
YES  
Check for signs of a  
weak Compressor,  
see page E1  
Make sure system is  
not overcharged  
Does the  
manual Purge  
Switch  
energize the  
Purge Valve?  
YES  
NOT OK  
Timer Initiate  
Control out of  
adjustment or  
may be  
Check Timer Initiate  
Control for correct  
cut-in pressure  
defective  
OK  
NO  
High  
NOT OK  
Temperature  
Safety Control  
may be open,  
see page F8  
Check Timer  
Number 1 for proper  
setting and  
Timer may be  
defective  
operation  
OK  
Check Timer  
Number 2  
OK  
Relay Number 1  
or Relay Base  
may be  
defective  
Page C14  
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Troubleshooting Trees  
Machine Enters Harvest, Then Returns To Freeze Prematurely  
Check the Manual  
Is the Harvest  
YES  
Purge Switch  
OPEN  
Purge Switch is  
defective  
Assist working  
properly? See  
Normally Closed  
contacts. See page  
page F6  
F1  
CLOSED  
NO  
Adjust as  
required or  
replace  
Check High  
Temperature Safety  
Control. See page  
F8  
High  
OPEN  
Temperature  
Safety Control is  
defective  
defective part  
CLOSED  
Relay 1 or  
Relay Base may  
be defective  
Page C15  
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Troubleshooting Trees  
Length Of Harvest Excessive  
Does the  
machine meet  
installation  
NO  
Correct  
installation  
deficiency  
guidelines?  
YES  
Check Harvest  
Assist Assembly for  
proper operation,  
see page F6  
Low refrigerant  
charge, repair  
leak and weigh  
in proper charge  
Is the ice  
formation  
even on the  
Evaporator?  
OK  
NO  
NOT OK  
YES  
Remote: Check  
Mixing Valve  
operation, page E6  
Water Cooled: check  
Water Valve for  
Adjust or  
replace  
defective part  
YES  
Does the  
machine have  
a remote  
condenser?  
proper adjustment  
OK  
NO  
Check suction  
pressure during  
harvest. See page  
E5  
Hot Gas Valve  
may be  
TOO LOW  
defective  
OK  
Clean Evaporator  
per instructions in  
Section B  
Go to “Ice Does  
Not Release”  
Troubleshooting  
Tree, page C17  
STILL TOO LONG  
Page C16  
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Troubleshooting Trees  
Ice Does Not Release From Evaporator  
Is the ice  
bridge  
correct? See  
page F4  
YES  
NO  
Level the  
machine  
Is the machine  
level?  
YES  
NO  
Does water  
run over the  
Evaporator  
during  
Set proper  
bridge  
thickness, see  
page F4  
Clean the  
Evaporator, see  
page B2  
Check Harvest  
Assist for proper  
operation, see page  
F6  
NO  
OK  
harvest?  
YES  
NOT OK  
OK  
Repair Harvest  
Assist as  
NOT OK  
Check Purge valve  
and Tubing for  
obstructions and  
proper operation,  
see page D2  
Replace Purge  
Valve or repair  
tubing  
required  
obstruction  
Check suction  
Evaporator may  
be defective,  
see page E4  
and E5  
GOOD  
pressure during  
harvest, see page  
E5  
OK  
TOO LOW  
Check Relay 1 and  
Relay Base for  
proper operation,  
see page F5  
Relay or Relay  
Base defective  
Check discharge  
pressure during  
Hot Gas valve  
may be  
GOOD  
freeze, see page E2  
restricted or  
defective, see  
page E5  
OK  
Selector  
Switch may be  
defective,  
TOO LOW  
WASH contacts  
closed in ICE  
mode  
Low ambient or  
Water regulating  
Valve set too  
low  
Page C17  
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Troubleshooting Trees  
Hot Evaporator, Low Suction And Discharge Pressure (Remote Only)  
Does the  
machine meet  
the installation  
guidelines?  
Correct  
installation  
deficiency  
NO  
YES  
Does the  
machine have  
the proper  
refrigeration  
charge?  
Mixing Valve  
may be  
defective, see  
page E6  
YES  
NO  
Repair leak,  
evacuate and  
weigh in  
refrigerant  
charge per  
nameplate  
Page C18  
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Water System  
Water Distribution and Components  
Water enters the machine through the float valve located in the water trough. The water trough  
holds water used for ice making. The float valve is used to maintain the proper water level in the  
water trough. During the freeze cycle water is continuously circulated over the evaporator by the  
water pump. When the machine enters harvest, the purge valve (not shown) opens and mineral  
laden water is pumped out of the water trough to the drain. After water is purged from the trough,  
the water pump and purge valve are de-energized and the trough refills.  
Float Valve  
The water level can be adjusted by carefully bending the arm of the float. The water level should  
be ½ inch (13mm) above the top of the water pump impeller housing during the freeze cycle.  
If the float valve does not allow water into the trough or water flow is slow, the float valve may be  
restricted. Remove and disassemble the float valve and clean the orifice. If the water flow is still  
slow, check the water pressure to be sure it is at least 20 PSI (1.4 bar).  
If the float valve does not stop the water flow, make sure the water pressure to the machine does  
not exceed 60 PSI (4.1 Bar). Install a water pressure regulator if the pressure is too high. If the  
water pressure is not the problem, the float plunger or the entire float valve assembly may need to  
be cleaned or replaced.  
Water Distribution Tube  
Water is pumped to a distribution tube located at the top of the evaporator and is used to distribute  
water evenly over the evaporator. The distribution tube can be removed and dissembled for  
cleaning if the hole becomes plugged or if there is excessive mineral build-up in the water system.  
The water distribution tube is a tube within a tube. Water enters and fills the inner tube and exits  
through a series of holes along the top of the inner tube. Water then fills the outer tube and exits  
through a series of holes along the bottom of the outer tube. For proper water flow over the  
evaporator, it is important that the tube be assembled correctly after cleaning. The tube can be  
checked for proper assembly by checking the “bump” on the flanges at the tube ends, the “bump”  
should be at the top.  
Page D1  
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Water System  
Water Distribution Disassembly  
Remove 2 screws holding the distribution tube to the evaporator spillway. Remove the clamp  
holding the water tube to the distribution tube. Twist the end caps of the distribution tube  
counterclockwise and pull to remove the inner tube halves from the outer tube. To reassemble,  
push the inner tube halves into the outer tube with the holes facing the same direction. Make sure  
the inner tube halves seat together completely. Twist the end caps clockwise ½ turn to lock the  
inner tubes in place. The holes in the tubes will now be facing in the opposite directions.  
Important! For proper water flow over the evaporator, the inner tube holes must face up.  
Turn counterclockwise to remove  
Page D2  
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Water System  
Water Splash Curtain  
The water splash curtain covers the evaporator to prevent water from splashing into the bin and is  
also used to actuate the bin switch. When the bin becomes full of ice, the splash curtain is held  
open when the ice drops off of the evaporator. The actuator tab or wire bale on the splash curtain  
will release pressure on the bin switch and the machine shuts off. See bin control on page F9.  
On single evaporator units, the splash curtain can be opened or removed during the freeze cycle  
and the machine will continue to run until the ice drops from the evaporator. On dual evaporator  
units, if the curtain is opened or removed during the untimed freeze cycle, or during defrost, the  
machine will shut down. If the curtain is opened or removed during the timed freeze cycle, the unit  
will continue to operate.  
The splash curtain can be removed by swinging the bottom of the curtain away from the  
evaporator and lifting the right side of the curtain up and out of the hinge pin slot. To reinstall the  
curtain, position the left side pin into the slot first, then insert the right hand side with the actuator  
tab of the curtain behind the bin switch.  
Note: The CCM3030 utilizes a curtain-retaining clip. The CCU Undercounter Series ice  
machines do not utilize a splash curtain.  
Water splash curtain actuator tab  
positioned behind bin switch  
Proper position of wire bale switch actuator  
Page D3  
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Water System  
Water Purge Valve  
When the machine enters the harvest cycle, the water pump continues to run and the purge valve  
opens. This allows mineral laden water to be pumped from the water trough to the drain. This  
helps keep the water system clean. The water pump and purge valve de-energizes once the water  
is flushed from the water trough. The cam switch controls the length of time that the water pump  
and purge valve remains energized see page F7. The purge valve can also be energized  
manually by pushing the purge switch. The purge switch is used when cleaning the water system  
to flush cleaning solution down the drain. See page B1 for cleaning instructions.  
The purge valve must be completely closed during the freeze cycle. If water leaks through the  
purge valve during the freeze cycle, the freeze cycle will be extended due to the float allowing  
warm water into the trough and poor ice formation will result. The purge valve may be defective or  
need cleaning.  
The purge valve can be disassembled for cleaning by:  
1. Disconnect electrical power form the ice machine.  
2. Lift and remove the coil retainer cap.  
3. Leave the coil wires attached to the coil and lift coil from the valve body. (Note coil orientation)  
4. Rotate the enclosing tube ¼ turn counterclockwise to remove.  
5. Remove the enclosing tube, plunger and diaphragm from the valve body  
6. Reverse procedure to reassemble.  
The purge valve can be easily cleaned or rebuilt without  
removing the entire valve body. Dirty or clogged purge  
valves are not considered a warranty repair.  
Coil Cap  
Enclosing Tube  
Diaphragm  
Plunger  
Coil  
Body  
Page D4  
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Water System  
Water Trough  
CCU0150/0220 Models  
The water trough can be easily removed by the following procedures:  
1. Disconnect power to the ice machine.  
2. Shut the water supply off to the ice machine.  
3. Remove water splash curtains when  
applicable.  
Mounting Screws  
4. Remove water trough mounting screws.  
5. Carefully remove water trough from the ice  
machine.  
6. Reverse procedure to reassemble.  
Mounting Screws  
CCM 30 Inch Wide  
CCM 22 Inch Wide Models  
Mounting Screws  
CCM 48 Inch Wide Models  
Mounting Screws  
Mounting Screws  
Mounting Screws  
CCM1530 Model  
CCU0300 Model  
Page D5  
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Refrigeration System  
Refrigerant Cycle and  
Components  
Before diagnosing the refrigeration  
system, it is very important that the  
refrigerant charge be correct.  
Whenever the refrigeration system  
has been opened, the filter-drier  
must be replaced and the proper  
refrigerant charge must be weighed  
in. See refrigerant charge data on  
page A5–A8.  
Refrigerant Pressures  
The suction pressure at the  
beginning of the freeze cycle can vary +/- 10 psi  
(.7 bar) depending on operating conditions. Reference Chart on page E10-E13. Pressures less  
than this may indicate an undercharge. The discharge pressure on water-cooled units should be  
250 psi (17.01 bar) for R404a units. The discharge pressure on air cooled units will vary with  
ambient conditions but will typically run higher than water cooled units. Remote condensers  
located in ambient temperatures below 70°F (21°C) will typically run a lower discharge pressure.  
See Mixing Valve later in this section.  
Refrigerant in a gas state is pumped throughout the refrigeration system by a hermetic  
compressor to the condenser. Heat is removed from the refrigerant either by forced air  
movement through an air-cooled condenser or transferring heat from the refrigerant to water  
through a water-cooled condenser. The refrigerant changes to a liquid when cooled.  
The refrigerant in a liquid state passes through a filter drier. The filter drier traps  
small amounts of moisture and foreign particles from the system. The filter drier must  
be replaced whenever the refrigeration system is opened or if the refrigerant charge  
has been completely lost.  
Compressor  
The compressor runs during the entire cycle. If the valves in the  
compressor are damaged, the compressor will be unable to pump  
refrigerant efficiently. Damaged valves are usually the result of another  
problem in the refrigeration system such as liquid refrigerant returning to  
the compressor, oil slugging or high head pressure. When a compressor  
is replaced it is important that the refrigerant charge be weighed in and  
the system checked for proper operation to prevent a repeat failure.  
An inefficient compressor will usually have a higher than normal suction  
pressure at the end of the cycle. The freeze cycle will be longer than normal and/or the harvest  
cycle may be excessively long. Check the compressor amperage draw 5 minutes into the freeze  
cycle. If the compressor amp draw (Reference data plate on ice machine back panel) is less than  
70% of rated full load amps, the compressor may be inefficient. These symptoms may also be  
caused by other problems, therefore it is important to use the troubleshooting trees when  
diagnosing a problem. See Electrical System for more information on the compressor and  
compressor start components.  
Page E1  
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Refrigeration System  
Air Cooled Condenser (Self Contained)  
The air condenser is located in the back of the cabinet. Air is pulled  
through the condenser by a fan motor and discharged through the right  
hand side panel. The CCM1448 has 2 fan motors and discharges  
through the right side and left side panels. The CCU Undercounter air  
intake and discharge is through the front panel.  
Do not block airflow as it will cause premature failure of the  
machine and will void the warranty.  
Water Cooled Condenser  
If the machine has been properly installed, the water flow through the  
condenser will be in a direction opposite the refrigerant flow. The water  
condenser supply pressure must be between 20 psi (1.4 bar) and 60 psi  
(4.1 bar). A water-regulating valve is used to control the flow of water  
into the condenser. In areas that have poor water quality, the  
condenser may eventually become coated with mineral deposits. This  
will decrease the efficiency of the condenser resulting in high head  
pressure. Water cooled condensers replaced due to excessive mineral  
build up or freezing will not be covered under warranty.  
Water Regulating Valve  
The water-regulating valve controls the head pressure by regulating the amount of  
water flow through the condenser. The bellows of the regulating valve are  
connected to the high-pressure side of the refrigeration system. As the head  
pressure rises, the bellows expand increasing the water flow through the water  
condenser. Adjusting the spring pressure screw on top of the water valve can vary  
the rate of water flow. The valve should be adjusted to maintain a discharge  
pressure of 250 psi (17.01 bar) on R404a units. Water exiting the condenser should  
be between 100°F (38°C) and 110°F (43°C). When the machine is off, the water  
valve will close completely, stopping the flow of water through the condenser. If the  
water flow does not stop when the machine is off, the valve may need cleaning or  
replaced.  
Air Cooled Condenser (Remote)  
See Pages E5 and E7  
High Pressure Safety Control (Manual Reset)  
If the discharge pressure becomes excessive, the high-pressure safety  
control will open and shut the machine off. The high-pressure safety control  
opens at 450 psi (30.62 bar) on R404a units. The high-pressure safety  
control is used on all water-cooled and remote units and select air-cooled units.  
High Pressure Safety Control (Automatic Reset)  
The automatic reset high pressure control opens at 450 psi (30.62 bar) and closes at  
338 psi (23.00 bar). The high-pressure safety control is used on all water-cooled and  
remote units and select air-cooled units.  
Page E2  
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Refrigeration System  
Thermostatic Expansion Valve (TXV)  
The thermostatic expansion valve meters the flow of refrigerant into the  
evaporator changing its state from a high-pressure liquid to a low-pressure  
liquid. This drop in pressure causes the refrigerant to cool. The cooled  
refrigerant absorbs heat from the water circulating over the evaporator. As  
the evaporator fills with liquid refrigerant, the evaporator becomes colder.  
The flow of refrigerant into the evaporator is controlled by the temperature at the outlet of the  
evaporator. The expansion valve bulb, mounted to the top of the suction line, senses the  
evaporator outlet temperature causing the expansion valve to open or close. As ice forms on the  
evaporator, the temperature drops and the flow of refrigerant into the evaporator decreases,  
resulting in a drop in suction pressure.  
The evaporator should become completely flooded (filled with liquid refrigerant) during the freeze  
cycle. A completely flooded evaporator will have a uniform freeze pattern (ice formation across the  
evaporator). A starved evaporator (not enough liquid refrigerant) will have poor or no ice formation  
at the top of the evaporator, and the tube(s) exiting the evaporator will not frost. All tubes should  
be within 10 degrees of each other and frosted approximately 5 minutes from the start of the freeze  
cycle.  
An expansion valve that is restricted or not opening properly will starve the evaporator resulting in  
lower than normal suction pressure. A low refrigerant charge will also starve the evaporator and  
cause low suction and discharge pressures. If not sure of the amount of charge in the system, the  
refrigerant should be recovered and the correct charge be weighed in before a defective valve can  
be diagnosed.  
If the evaporator is starved but the suction pressure is higher than normal, the TXV is not the  
problem; refer to the troubleshooting tree in section C. If the TXV sticks open or if the thermal bulb  
is not making good contact with the suction line, the flow of refrigerant into the evaporator will be  
too great and liquid refrigerant will flood the compressor. The suction pressure will remain higher  
than normal and the machine will remain in an extended freeze cycle. Ice will build evenly but will  
be very thick.  
Symptom  
Problem  
Possible Remedy  
Evaporator flooded but suction  
pressure not dropping.  
Compressor has been checked  
and appears to be good.  
Suction line at compressor may  
be colder than normal  
1 TXV thermal bulb not making 1 Tighten bulb clamp and  
good contact with suction  
line or uninsulated  
insulate bulb.  
2 TXV bulb installed incorrect  
2 Locate bulb on top of  
suction line  
3 System overcharged  
4 TXV stuck open  
3 Recharge system  
4 Replace TXV  
Evaporator starved, no frost  
on line(s) exiting evaporator.  
Suction pressure is low.  
1 Machine low on charge  
1 Recover refrigerant  
and weigh in proper  
charge  
See Evap. Diagram Pg.E4  
2 TXV restricted or stuck  
closed  
2 Replace TXV and  
drier  
Continued Page E4  
Page E3  
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Refrigeration System  
Thermostatic Expansion Valve (Continued)  
A dual evaporator machine will have one TXV for each evaporator. If one TXV sticks open and the  
other is operating normally, the suction pressure will be higher than normal and both evaporators  
will build thick ice. It is recommended that both valves be replace if one sticks open.  
If one TXV sticks closed and one is operating normally, the suction pressure will be normal or low  
but the evaporator with the defective valve will be starved (thick ice at the bottom and thin ice at  
the top).  
Evaporator  
As water is circulated over the front of the evaporator, liquid refrigerant is circulated through the  
tubing attached to the back of the evaporator. As the liquid refrigerant in the tubing vaporizes, it  
absorbs heat from the water causing the water to freeze. The evaporator should be completely  
flooded throughout most of the freeze cycle. A flooded evaporator will build ice evenly across the  
evaporator. A starved evaporator will have uneven ice formation. Most problems with ice  
formation or harvesting are not related to a defective evaporator, use the Troubleshooting Trees in  
section C for additional help.  
Refrigerant enters the evaporator through the bottom tube and exits through the top tube. On  
models CCM0830, CCM1030, CCM1848 and CCM2148, the refrigerant line at the TXV outlet splits  
into two feeder tubes. This split occurs at the distributor, which is a fitting that is soldered to the  
TXV. One feeder tube from the distributor feeds the top of the evaporator; the other tube feeds the  
bottom of the evaporator. The evaporator tubes run parallel, in opposite directions, along the back  
of the evaporator creating a dual pass.  
If the evaporator is flooded but not building ice evenly, it is possible the evaporator has coil  
separation. Evaporator coil separation is the separation of the refrigerant tubing from the back of  
the evaporator plate. This is very rare but occasionally occurs.  
To confirm coil separation, remove and check the back of the evaporator. If the coil is separated,  
the evaporator must be replaced. If the outlet(s) of the evaporator is not frosted, the problem is not  
with coil separation (Refer to the troubleshooting trees, section C).  
In  
Out  
Out  
In  
In  
Out  
Page E4  
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Refrigeration System  
Note: Permanent discoloration of the evaporator plating is normal and will cause no problems with  
harvesting the ice or sanitary conditions. Before condemning the evaporator for plating problems,  
be certain it is not just discoloration. If the spillway (plastic evaporator top) becomes damaged, it  
can be replaced. It is not necessary to replace the entire evaporator.  
As liquid refrigerant leaves the evaporator, it changes to a low-pressure gas before returning to the  
compressor. Liquid refrigerant must not return to the compressor or damage will result. Frost on  
the suction line at the inlet of the compressor indicates liquid returning to the compressor. Check  
for frost at the end of the freeze cycle. If liquid is returning to the compressor, the problem must be  
located and corrected. See Refrigerant Charge, Thermostatic Valve and Evaporator.  
Harvest Cycle  
Once the freeze cycle is complete, the machine enters the harvest cycle. The hot gas valve  
opens to allow hot discharge gas to enter the evaporator.  
Hot Gas Valve  
When the machine enters harvest the hot gas valve coil is energized opening  
the hot gas valve. Discharge gas is pumped through the hot gas valve directly  
into the evaporator. The evaporator temperature will reach approximately 40°F  
(4.5°C). The suction pressure during harvest should be a minimum of 70 psi  
(4.8 bar) for R404a units. The discharge pressure will drop during harvest.  
If the hot gas valve does not completely open during harvest, there will not be enough hot gas in  
the evaporator to defrost the ice. If there is not enough hot gas entering the evaporator, the  
suction pressure will be lower than the above stated pressures. It is important when making this  
check that the machine has the proper refrigerant charge, normal head pressure and the  
compressor is functioning properly. If the hot gas valve leaks during the freeze cycle, ice will not  
form on the top of the evaporator and suction pressure will be higher than normal. To check if the  
hot gas valve is leaking, let the machine run in the freeze cycle for approximately 5 minutes. Now  
feel the temperature between the inlet and outlet of the valve. A definite temperature difference  
should be felt. If the lines are the same temperature and the suction pressure is higher than  
normal; the valve is leaking and should be replaced. Use Troubleshooting Trees in section C.  
Remote System  
Machines that use remote condensers have several components that are not used in self  
contained machines. A mixing valve controls the head pressure when the ambient temperature at  
the condenser drops below 70°F (21°C). When the bin fills with ice or is turned off at the selector  
switch, the machine will pump all the refrigerant into the receiver before shutting off.  
Remote Condenser  
For proper operation, the remote condenser must be installed properly.  
Improper installation will void the warranty. See remote guidelines on page  
A13. The location of the remote condenser should be such that the ambient  
air temperature does not exceed 120°F (48.9°C). If ambient temperature  
exceeds 120°F (48.9°C) ice production will decrease until the ambient  
temperature decreases.  
Air  
Flow  
Page E5  
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Refrigeration System  
Remote Condenser (Continued)  
If the airflow is restricted or the condenser is dirty, the head pressure will be excessively high, slow  
production will result and the compressor may overheat and eventually become damaged. The  
condenser coil and fan blades must be kept clean. The condenser can be cleaned with  
compressed air or by using a brush. If a brush is used, brush in the direction of the fins taking care  
not to bend the fins. If the condenser fins are bent, this will restrict the airflow through the  
condenser and the fins will need to be straightened with a fin comb. Problems related to a dirty  
condenser or poor airflow will not be covered under warranty. Note: The condenser fan motor runs  
continually, it will shut off when the icemaker shuts off.  
Mixing Valve  
When the temperature at the condenser is above 70°F (21°C), the refrigerant flow from the  
compressor is directed by the mixing valve through the condenser and into the receiver. When the  
temperature at the condenser drops below 70°F (21°C), the pressure in the bellows of the mixing  
valve becomes greater than the pressure of the liquid refrigerant coming from the condenser. This  
change allows the valve to partially restrict the flow of  
refrigerant leaving the condenser and allows discharge  
gas to by-pass the condenser and flow directly into the  
receiver, mixing with the liquid refrigerant from the  
condenser. The amount of discharge gas that  
bypasses the condenser increases as the ambient  
temperature decreases. This action of the mixing  
valve allows the discharge pressure to be maintained  
at approximately 240 psi (16.5 bar) during low ambient  
conditions. If the refrigerant system is undercharged  
and the ambient temperature is below 70°F (21°C), the  
mixing valve will not work properly. The mixing valve  
will allow too much refrigerant to bypass the  
condenser.  
Problem  
Possible Cause  
Remedy  
1 Head pressure low, Line between  
valve and receiver cold. Ambient  
condenser temp. below 70°F (21°C)  
A. Valve Defective, not allowing A. Replace valve  
discharge gas into receiver  
2 Head pressure low, Line between  
valve and receiver hot.  
A. System low on charge.  
B. Valve defective, not  
allowing liquid  
A. Leak check. Recover  
refrigerant and weigh  
in proper charge.  
into receiver.  
B. Replace valve  
3. Head pressure low, Line  
returning from condenser  
A. Valve defective not  
allowing refrigerant  
to circulate through  
condenser.  
A. Replace valve.  
is cool. Ambient condenser  
temperature is above 70°F (21°C)  
Page E6  
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Refrigeration System  
Pump Down System (Remote Only)  
The pump down system prevents liquid refrigerant from migrating to the evaporator and  
compressor during the off cycle and prevents the compressor from slugging or starting under an  
excessive load.  
Liquid Line Solenoid  
When a machine with a remote condenser shuts off, the liquid line solenoid valve,  
located at the outlet of the receiver, is de-energized causing the valve to close  
completely restricting the flow of refrigerant. The compressor will pump all of the  
refrigerant into the condenser and receiver.  
As the system pumps down, the pressure on the low side of the system drops. When the suction  
pressure drops to 10 psi (.68 bar), the pump down control opens and shuts the machine off. See  
page F9 for pump down control operation. Liquid refrigerant is stored in the condenser and  
receiver while the machine is off. It is normal for the machine to pump down once or twice an hour  
as the pressures equalize.  
When the machine comes back on (the bin switch closes or the selector switch placed to the ICE  
position), the liquid line solenoid valve opens and the refrigerant is released from the receiver.  
When the suction pressure rises to 35 psi (2.38 bar) the pump down control closes and the  
machine comes back on. If the machine will not pump down, the valve may not be closing all the  
way. A weak compressor will also prevent the machine from pumping down. Check for signs of a  
weak compressor before replacing the liquid line solenoid. Prior to replacing the valve,  
disassemble and check for obstructions that may not allow the valve to seat.  
Receiver  
If the system has a remote condenser, the refrigerant will enter a receiver before  
passing through the filter drier. The receiver holds reserve liquid refrigerant during  
the freeze cycle. The receiver also stores liquid refrigerant during the off cycle.  
Page E7  
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Refrigeration System  
Refrigerant  
Refrigerant in a high-pressure liquid form is fed to an expansion valve where the refrigerant is  
reduced to a low-pressure liquid. Under this low pressure, the liquid will absorb heat from the  
evaporator causing the liquid to change to a vapor. This vapor is the drawn into the compressor  
where the temperature and pressure of the vapor are increased. The high temperature, high  
pressure vapor flows to the condenser where the heat is removed, causing the vapor to return to  
the liquid form, making the refrigerant ready to flow back to the evaporator to pick up more heat.  
Always check the serial number data plate for the proper type of refrigerant and the amount used  
in the machine you are servicing.  
Important: When discharging refrigerant from an icemaker, recover as much of the  
refrigerant as possible with a recovery device or some other means to prevent the  
refrigerant from entering the atmosphere.  
Method of Charging Refrigerant  
In order to achieve a properly charged refrigeration system, the system must be completely  
evacuated.  
To achieve a complete evacuation you will need a service gauge manifold with properly maintained  
hoses, and a vacuum pump capable of pulling a 50-micron vacuum. This will require a two-stage  
pump.  
Connect the service gauge manifold to the high and low side service ports and vacuum pump.  
Make sure the valves on the gauge manifold are closed, then start the pump.  
Note: Do not use a refrigeration compressor as a vacuum pump. Compressors are able to  
pull only a 50,000-micron vacuum.  
After the vacuum pump has been started, open the valves on the gauge manifold. This will allow  
the refrigeration system to start being evacuated.  
If there has not been an excessive amount of moisture in the system, allow the vacuum pump to  
pull the system down to about 200 microns or 29.9 inches or less. Once this has been achieved,  
allow the vacuum pump to operate for another 30 minutes. Then close the valves on the gauge  
manifold and stop the vacuum pump. Then watch your gauges. A rise to 500 microns in three (3)  
minutes or less indicates a dry system under a good vacuum.  
If your gauge registers a more rapid rise, the system either has moisture remaining or there is a  
leak in the system, requiring a check for the leak, and repair and another complete evacuation.  
Note: Seal the ends of the gauge manifold hose and pull them into a deep vacuum to determine if  
the leak is not in the hoses. The gauge manifold should be able to hold the vacuum for three (3)  
minutes.  
Page E8  
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Refrigeration System  
If the refrigeration system is extremely wet, use radiant heat to raise the temperature of the  
system. This action will cause the moisture to vaporize at less of a vacuum.  
The use of two (2) valves, one between the vacuum pump and gauge manifold and the other  
between the refrigerant cylinder and the gauge manifold allows you to evacuate and charge the  
system without disconnecting any hoses. If the hoses were disconnected, air or moisture will have  
the opportunity to enter the hoses and then the system.  
A properly charged icemaker is a service technician’s greatest ally. Proper charging will allow any  
concern with the icemaker to be accurately diagnosed.  
The refrigerant charge must be weighed into the icemaker either by using a charging scale or with  
a dial-a-charge.  
The amount of proper refrigerant required for the icemaker is printed on the serial data plate  
attached to the icemaker and is listed on the following pages. Never vary the amounts from those  
listed.  
Remote models with sixty (60) foot lineset runs will need an additional fifteen (15) ounces of  
refrigerant added.  
In some cases the complete refrigerant charge may not enter the refrigeration system. In those  
instances, close the gauge manifold high side valve and disconnect the manifold from the high side  
port.  
When the icemaker is completely charged, secure the caps to the service ports and check to make  
sure the ports are not leaking refrigerant.  
Reference Tables on Page E10 and E12.  
Page E9  
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Refrigeration System  
60 CYCLE and 3 PHASE  
24 Hour  
Capacity  
Wires  
Max  
Min.  
Voltage  
@ 90/70  
Including  
Fuse  
Circuit  
Comp.  
**Refrigerant  
Oz.  
Model  
Hz/Phase  
115/60/1  
Lbs.  
Kg.  
51  
BTUH  
3572  
Ground  
Size  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
20  
20  
15  
15  
20  
20  
20  
20  
15  
15  
15  
15  
20  
20  
20  
20  
20  
20  
15  
15  
15  
Amps  
9.7  
RLA  
6.9  
5.9  
8.5  
6.7  
4.2  
3.2  
8.8  
8.5  
8.6  
8.2  
9.0  
10.1  
11.7  
9.9  
5.3  
4.8  
13.3  
11.0  
9.3  
11.1  
9.0  
7.9  
6.6  
8.6  
9.2  
7.4  
8.1  
9.0  
6.8  
9.3  
7.4  
5.3  
6.9  
Type  
Grams  
340  
284  
340  
256  
340  
256  
454  
369  
709  
369  
510  
312  
850  
397  
850  
397  
710  
425  
3742  
595  
340  
680  
482  
3742  
765  
680  
4990  
964  
680  
4990  
964  
680  
4990  
CCU0150A1  
CCU0150W1  
CCU0220A1  
CCU0220W1  
CCU0220A2  
CCU0220W2  
CCU0300A1  
CCU0300W1  
CCM0330A1  
CCM0330W1  
CCM0322A1  
CCM0322W1  
CCM0430A1  
CCM0430W1  
CCM0430A2  
CCM0430W2  
CCM0530A1  
CCM0530W1  
CCM0530R1  
CCM0522A1  
CCM0522W1  
CCM0630A2  
CCM0630W2  
CCM0630R2  
CCM0830A2  
CCM0830W2  
CCM0830R2  
CCM1030A2  
CCM1030W2  
CCM1030R2  
CCM1030A3  
CCM1030W3  
CCM1030R3  
112  
155  
175  
220  
168  
192  
228  
296  
253  
275  
214  
312  
368  
407  
385  
439  
458  
513  
455  
370  
442  
506  
576  
502  
698  
840  
826  
811  
941  
921  
767  
906  
844  
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
12  
9
115/60/1  
70  
3732  
7.9  
115/60/1  
80  
4609  
11.9  
8.9  
12  
9
115/60/1  
100  
76  
4642  
230/60/1  
4321  
6.0  
12  
9
230/60/1  
87  
4263  
4.4  
115/60/1  
104  
135  
115  
125  
97  
5928  
13.1  
11.1  
13.3  
10.8  
13.8  
13.1  
17.1  
12.9  
8.0  
16  
13  
25  
13  
18  
11  
30  
14  
30  
14  
25  
15  
132  
21  
12  
24  
17  
132  
27  
24  
176  
34  
24  
176  
34  
24  
176  
115/60/1  
6097  
115/60/1  
6248  
115/60/1  
5855  
115/60/1  
5910  
115/60/1  
142  
167  
185  
175  
200  
208  
233  
207  
168  
201  
230  
262  
228  
317  
382  
375  
369  
428  
419  
349  
412  
384  
6195  
115/60/1  
7835  
115/60/1  
7563  
208-230/60/1  
208-230/60/1  
115/60/1  
7832  
7770  
6.4  
9990  
19.1  
14.3  
14.9  
16.0  
13.1  
11.5  
8.7  
115/60/1  
9777  
115/60/1  
10278  
7753  
115/60/1  
115/60/1  
7852  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/3  
208-230/60/3  
208-230/60/3  
10566  
10767  
10850  
15003  
14458  
16371  
16239  
15986  
18377  
15614  
16487  
17653  
12.9  
13.0  
9.8  
12.3  
13.8  
9.0  
13.8  
11.8  
7.1  
10.8  
Page E10  
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Refrigeration System  
60 CYCLE and 3 PHASE  
24 Hour  
Capacity  
Wires  
Max  
Fuse  
Size  
30  
20  
25  
25  
20  
25  
30  
20  
30  
20  
20  
20  
30  
30  
30  
30  
30  
30  
15  
15  
15  
20  
30  
50  
30  
30  
20  
25  
Min.  
Voltage  
@ 90/70  
Including  
Circuit  
Amps  
20.2  
15.6  
23.3  
15.1  
9.8  
Comp.  
RLA  
13.8  
11.7  
16.5  
9.7  
**Refrigerant  
Oz.  
Model  
Hz/Phase  
Lbs.  
Kg.  
510  
540  
515  
450  
497  
435  
504  
563  
523  
514  
577  
543  
559  
549  
664  
667  
740  
664  
707  
678  
729  
656  
843  
783  
769  
710  
842  
790  
BTUH  
22590  
22529  
23085  
19765  
19809  
20173  
21957  
21994  
22126  
21761  
22308  
22547  
24337  
22999  
25663  
27152  
27687  
28110  
27146  
27966  
27560  
27514  
33333  
35369  
29406  
30325  
32928  
34714  
Ground  
Type  
Grams  
2948  
709  
CCM1448A2  
CCM1448W2  
CCM1448R2  
CCM1448A3  
CCM1448W3  
CCM1448R3  
CCM1448A2 1  
CCM1448W2 1  
CCM1448R2 1  
CCM1448A3 1  
CCM1448W3 1  
CCM1448R3 1  
CCM15302  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/3  
208-230/60/3  
208-230/60/3  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/3  
208-230/60/3  
208-230/60/3  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/3  
208-230/60/3  
208-230/60/3  
208-230/60/3  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/1  
208-230/60/3  
208-230/60/3  
1122  
1187  
1134  
989  
3
3
3
4
4
4
3
3
3
4
4
4
3
3
3
3
3
3
4
4
4
4
3
3
3
3
4
4
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
104  
25  
240  
104  
25  
6804  
2948  
709  
1093  
956  
7.1  
14.0  
26.1  
17.8  
22.2  
16.0  
14.7  
14.7  
27.4  
24.5  
17.0  
22.3  
22.0  
27.7  
10.7  
15.5  
12.3  
17.1  
25.3  
33.7  
22.3  
26.9  
16.6  
23.2  
9.1  
240  
60  
6804  
1701  
850  
1109  
1239  
1150  
1131  
1270  
1195  
1202  
1207  
1461  
1468  
1628  
1461  
1556  
1491  
1603  
1444  
1855  
1723  
1692  
1561  
1853  
1737  
17.9  
13.5  
15.7  
9.8  
30  
240  
60  
6804  
1701  
851  
7.8  
30  
9.7  
240  
240  
240  
35  
6804  
6804  
6804  
992  
19.8  
17.5  
12.9  
15.7  
16.9  
20.1  
7.8  
CCM153021  
CCM1848W2  
CCM1848R2  
CCM1848W2 1  
CCM1848R2 1  
CCM1848W3  
CCM1848R3  
CCM1848W3 1  
CCM1848R3 1  
CCM2148W2  
CCM2148R2  
CCM2148W2 1  
CCM2148R2 1  
CCM2148W3  
CCM2148R3  
400  
37  
11340  
1049  
7711  
992  
272  
35  
10.3  
9.1  
400  
37  
11340  
1049  
7711  
1049  
11340  
1247  
7711  
1049  
11340  
11.6  
19.5  
23.5  
17.1  
18.1  
12.6  
15.1  
272  
37  
400  
44  
272  
37  
400  
CCM2148W3 1  
CCM2148R3 1  
208-230/60/3  
208-230/60/3  
1650  
1525  
750  
693  
28676  
29342  
4
4
30  
25  
13.5  
21.2  
10.1  
21.2  
R404A  
R404A  
44  
1247  
7711  
272  
Page E11  
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Refrigeration System  
50 CYCLE  
24 Hour  
Capacity  
Wires  
Max  
Min.  
Voltage  
@ 90°/70°  
Including  
Fuse  
Circuit  
Comp.  
**Refrigerant  
Model  
Hz/Phase  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
230/50/1  
Lbs.  
Kg.  
65  
BTUH  
3774  
Ground  
Size  
15  
15  
15  
15  
16  
16  
16  
16  
16  
16  
16  
16  
16  
15  
15  
15  
15  
15  
15  
25  
20  
25  
30  
20  
30  
Amps  
4.9  
RLA  
3.3  
Type  
Oz.  
12  
Grams  
340  
CCU0220A5  
CCM0220W5  
CCU0300A5  
CCU0300W5  
CCM0330A5  
CCM0330W5  
CCM0322A5  
CCM0430A5  
CCM0430W5  
CCM0522A5  
CCM0630A5  
CCM0630W5  
CCM0630R5  
CCM0830A5  
CCM0830W5  
CCM0830R5  
CCM1030A5  
CCM1030W5  
CCM1030R5  
CCM1448A5  
CCM1448W5  
CCM1448R5  
CCM1448A5 1  
CCM1448W5 1  
CCM1448R5 1  
143  
174  
223  
267  
279  
296  
214  
366  
440  
404  
459  
523  
474  
615  
855  
738  
742  
917  
801  
901  
1107  
1002  
1070  
1185  
1139  
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
R404A  
79  
3780  
4.1  
3.0  
9
256  
101  
121  
127  
135  
97  
5392  
6.4  
4.2  
14  
397  
5080  
4.7  
3.5  
13  
369  
6689  
8.4  
5.8  
23  
650  
6855  
6.6  
5.0  
12  
340  
4990  
6.6  
4.4  
22  
624  
166  
200  
184  
209  
238  
215  
280  
389  
335  
337  
417  
364  
410  
503  
455  
486  
539  
518  
7735  
8.2  
5.4  
23  
650  
8213  
6.2  
4.4  
13  
369  
8617  
9.2  
5.5  
21  
600  
9523  
8.7  
6.7  
22  
680  
9684  
6.8  
5.4  
14  
397  
10138  
13321  
14382  
14474  
15699  
16005  
16127  
19348  
20269  
21330  
21185  
21035  
22239  
9.9  
6.3  
132  
27  
4536  
765  
12.0  
9.2  
10.9  
10.9  
10.9  
12.5  
12.5  
12.5  
15.4  
15.4  
15.4  
15.5  
11.5  
15.6  
24  
680  
13.0  
13.3  
9.5  
176  
33  
4990  
936  
24  
680  
15.1  
20.8  
15.4  
18.1  
21.7  
15.1  
21.9  
176  
104  
25  
4990  
2950  
710  
240  
60  
6804  
1701  
710  
25  
240  
6804  
Page E12  
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Refrigeration System  
NOTES:  
Page E13  
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Refrigeration System  
CCU0150A  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Harv  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Start  
End  
Start End  
Freeze  
Harvest Complete  
167 150  
228 205  
305 262  
400 325  
59  
72  
89  
35  
41  
43  
44  
83  
93  
125 153 43  
145 177 55  
165 201 68  
183 229 88  
24 18'11" 1'56"  
20'07"  
24'15"  
38'17"  
85'09"  
104  
126  
126  
118  
150  
183  
29 23'05" 1'10"  
35 37'32" 0'45"  
36 84'18" 0'51"  
90/70  
108/98  
107  
CCU0150W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
250 250  
250 250  
250 250  
288 254  
65  
69  
80  
95  
42  
42  
41  
42  
98  
109  
118  
130  
137  
157 195 53  
167 203 58  
169 207 66  
178 217 82  
34 21'33" 1'01"  
22'34"  
25'17"  
30'20  
103  
108  
112  
35 24'11" 1'06"  
34 29'19" 1'01"  
37 39'52" 1'01"  
90/70  
110/100  
40'53"  
CCU0220A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
191 162  
260 216  
327 276  
428 350  
61  
71  
81  
94  
31  
34  
39  
39  
82  
85  
110 145 41  
125 170 55  
144 190 70  
174 231 87  
20 12'38" 2'04"  
14'42"  
18'43"  
28'48"  
53'56"  
102  
118  
154  
112  
140  
181  
22 17'31" 1'12"  
28 27'53" 0'55"  
28 53'07" 0'49"  
90/70  
109/95  
CCU0220W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
250 250  
250 250  
250 250  
290 266  
59  
63  
70  
77  
32  
37  
37  
39  
82  
98  
107  
118  
97  
120 171 44  
127 176 51  
135 182 62  
145 196 77  
18 14'29" 1'36"  
16'05"  
16'40"  
19'42"  
26'27"  
104  
117  
132  
22 15'29" 1'11"  
25 18'32" 1'10"  
29 25'41" 0'46"  
90/70  
110/100  
Page E14  
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Refrigeration System  
CCU0220A (230/60/1)  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
183 164  
265 225  
330 275  
435 363  
57  
69  
81  
92  
38  
35  
36  
43  
80  
83  
109 138 44  
127 171 58  
141 189 71  
169 223 88  
26 10'54" 1'40"  
12'34"  
21'06"  
27'36"  
53'56"  
102  
117  
145  
111  
138  
169  
31 19'50" 1'16"  
35 26'32" 1'04"  
47 53'17" 0'39"  
90/70  
110/100  
CCM0330A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
193-263  
cycling  
50/40  
70/50  
90/70  
75  
65  
93  
28  
28  
31  
33  
122  
100  
146  
150  
128  
108  
146  
167  
114 158 51  
118 159 56  
138 184 76  
166 209 89  
37  
9'14"  
0'49"  
10'03"  
11'45"  
15'50"  
29'15"  
257 196  
296 241  
381 299  
35 10'46" 0'59"  
54 15'09" 0'41"  
57 28'31" 0'44"  
110/100  
107  
CCM0330W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
70/50  
90/70  
250 250  
250 250  
298 268  
60  
67  
86  
25  
25  
26  
94  
112  
153  
98  
117  
160  
118 157 54  
127 169 61  
139 186 82  
32 11'22" 1'05"  
37 13'13" 0'51"  
51 18'31" 0'41"  
12'27"  
14'04"  
19'12"  
110/100  
CCM0322A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
70/50  
90/70  
Start  
End  
Start Freeze  
End Freeze  
Harv  
101  
136  
177  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
232 187  
312 247  
412 315  
62  
81  
22  
27  
33  
110  
144  
188  
111 156 53  
132 184 72  
153 214 94  
37 11'53" 1'01"  
50 16'31" 0'27"  
65 26'21" 0'41"  
12'54"  
16'58"  
27'02"  
110/100  
107  
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Refrigeration System  
CCM0322W  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Harv  
Air/Water  
70/50  
90/70  
Start  
End  
Start Freeze End Freeze  
Start  
End  
Start End  
Freeze  
Harvest Complete  
252 244  
254 246  
325 268  
63  
75  
25  
28  
30  
94  
108  
151  
99  
115  
173  
121 165 44  
134 178 61  
130 201 83  
30 10'57" 0'55"  
40 12'43" 0'50"  
57 17"51" 0'40"  
11'53"  
13'33"  
18'31"  
110/100  
101  
CCM0430A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
Start  
End  
Start Freeze End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
198-260  
cycling  
50/40  
70/50  
90/70  
63  
67  
88  
38  
37  
39  
41  
100  
99  
120  
140  
108  
111  
135  
170  
105 157 53  
105 157 54  
114 181 70  
126 206 90  
38 10'23" 1'03"  
11'26"  
13'14"  
21'08"  
44'40"  
263 200  
292 251  
383 302  
37 12'14" 1'00"  
56 20'20" 0'48"  
62 44'06" 0'34"  
110/100  
110  
CCM0430W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
250 250  
250 250  
255 250  
275 251  
63  
73  
83  
96  
38  
41  
39  
38  
91  
98  
98 157 45  
105 170 57  
108 179 68  
114 192 83  
30 10'47" 1'10"  
11'57"  
14'16"  
18'11"  
25'33"  
100  
113  
140  
106  
123  
154  
41 13'18" 0'58"  
43 17'16" 0'55"  
45 24'42" 0'51"  
90/70  
110/100  
CCM0530A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
Start  
End  
Start Freeze  
End Freeze Harv  
Harv  
Start End  
Start End Freeze  
Harvest Complete  
198-265  
cycling  
50/40  
70/50  
90/70  
57  
59  
70  
84  
33  
31  
34  
36  
100  
92  
118  
150  
110  
95  
126  
163  
115 159 50  
127 179 55  
141 198 70  
165 225 88  
37  
8'03"  
0'52"  
8'55"  
11'50"  
15'39"  
25'35"  
265 217  
325 280  
435 350  
41 10'42" 1'08"  
49 14'54" 0'45"  
60 24'46" 0'49"  
110/100  
Page E16  
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Refrigeration System  
CCM0530W  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Harv  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Start  
End  
Start End  
Freeze  
Harvest Complete  
250 250  
250 250  
250 250  
314 277  
56  
61  
69  
82  
31  
31  
33  
33  
85  
90  
105  
145  
89  
95  
113  
152  
116 171 46  
121 177 52  
127 187 63  
136 212 86  
26  
9'55"  
1'19"  
11'14"  
12'27"  
14'21"  
21'15"  
28 11'17" 1'10"  
35 13'24" 0'57"  
43 20'26" 0'49"  
90/70  
110/100  
CCM0530R  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
-20/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
200 207  
240 240  
271 245  
390 340  
52  
52  
56  
56  
37  
33  
35  
33  
66  
65  
66  
64  
65  
68  
68  
130 167 38  
146 180 53  
169 193 56  
182 233 60  
30  
9'52"  
2'07"  
11'59"  
12'53"  
15'54"  
30'55"  
28 11'52" 1'01"  
26 15'03" 0'51"  
46 29'59" 0'56"  
90/70  
110/100  
66  
CCM0522A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
230 248  
262 254  
316 273  
403 335  
55  
67  
84  
39  
39  
42  
42  
80  
95  
122  
140  
87  
95 149 42  
102 154 54  
116 183 72  
130 207 95  
34  
9'51"  
1'25"  
11'16"  
13'35"  
19'53"  
34'01"  
103  
134  
168  
39 12'28" 1'07"  
52 19'12" 0'41"  
62 33'26" 0'35"  
90/70  
110/100  
105  
CCM0522W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
261 248  
252 247  
254 249  
314 277  
60  
59  
68  
82  
30  
30  
32  
33  
83  
92  
104  
145  
86  
95  
112  
152  
100 164 47  
121 177 52  
127 187 64  
135 212 86  
26 10'06" 1'23"  
11'29"  
12'14"  
14'19"  
21'14"  
28 11'14" 1'00"  
36 13'24" 0'55"  
42 20'27" 0'47"  
90/70  
120/100  
Page E17  
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Refrigeration System  
CCM0630A  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Harv  
Air/Water  
Start  
End  
Start Freeze  
End Freeze  
Start  
End  
Start End  
Freeze  
Harvest Complete  
198-270  
cycling  
50/40  
70/50  
90/70  
51  
51  
62  
80  
29  
27  
32  
34  
86  
80  
103  
132  
95  
86  
113  
143  
108 157 51  
107 159 51  
122 182 66  
132 206 88  
36  
37  
7'51"  
9'48"  
0'48"  
1'15"  
8'39"  
11'03"  
13'40"  
27'19"  
270 205  
316 260  
415 319  
48 13'40" 0'42"  
59 26'37" 0'42"  
110/100  
CCM0630W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
250 250  
250 250  
250 250  
360 301  
48  
50  
54  
74  
27  
27  
28  
30  
67  
66  
78  
70  
72  
85  
102 155 44  
104 162 44  
110 169 53  
133 206 81  
21  
23  
8'17"  
8'40"  
2'19"  
1'58"  
10'36"  
10'38"  
13'01"  
24'33"  
90/70  
28 11'33" 1'28"  
40 23'43" 0'50"  
110/100  
117  
135  
CCM0630R  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
-20/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
238 238  
280 270  
293 275  
410 332  
46  
53  
58  
82  
33  
33  
33  
32  
93  
86  
107 159 54  
118 181 65  
120 189 74  
140 221 96  
44  
7'28"  
0'46"  
8'14"  
11'54"  
14'38"  
31'07"  
108  
118  
161  
111  
124  
176  
50 11'12" 0'42"  
52 13'55" 0'43"  
62 30'27" 0'40"  
90/70  
120/100  
CCM0830A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
203 176  
245 222  
315 277  
392 331  
55  
61  
65  
76  
31  
35  
37  
39  
75  
90  
108  
125  
79  
96  
118  
144  
96 143 43  
103 160 53  
115 185 71  
120 210 89  
35  
41  
7'09"  
9'21"  
2'12"  
1'06"  
9'21"  
10'27"  
15'19"  
26'01"  
90/70  
52 14'19" 1'00"  
62 25'11" 0'50"  
110/100  
Page E18  
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Refrigeration System  
CCM0830W  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Air/Water  
Start  
End  
Start Freeze End Freeze  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
70/50  
90/70  
250 250  
250 250  
321 293  
59  
61  
78  
34  
34  
35  
72  
79  
76  
88  
103 159 43  
105 165 49  
116 193 65  
27  
8'36"  
2'01"  
10'37"  
12'02"  
19'27"  
32 10'52" 1'10"  
45 18'32" 0'55"  
110/100  
108  
121  
CCM0830R  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
-20/40  
70/50  
Start  
End  
Start Freeze End Freeze  
Harv  
100  
115  
118  
136  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
240 240  
285 265  
294 272  
401 326  
61  
68  
72  
90  
29  
36  
35  
33  
108  
122  
125  
160  
100 160 51  
108 170 60  
111 177 63  
120 216 79  
41  
45  
9'46"  
9'31"  
1'06"  
1'00"  
10'52"  
10'31"  
12'08"  
23'24"  
90/70  
46 11'12" 0'56"  
57 22'34" 0'50"  
110/100  
CCM1030A  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
50/40  
70/50  
Start  
End  
Start Freeze End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
186 176  
233 210  
307 267  
374 325  
50  
56  
68  
68  
33  
30  
33  
33  
70  
78  
98  
68  
82  
104  
130  
100 132 41  
104 152 46  
115 177 62  
127 205 84  
35  
32  
4'48"  
8'00"  
1'56"  
1'26"  
6'44"  
9'26"  
90/70  
34 12"03" 1'01"  
53 23'25" 0'36"  
13'04"  
24'01"  
110/100  
115  
CCM1030W  
Compressor Temps  
°F  
Ambients  
°F  
Refrigeration Pressures PSIG  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Discharge  
Suction  
Start  
End  
Air/Water  
Start  
End  
Start Freeze End Freeze  
Harv  
Harv  
Start  
End  
Start End  
Freeze  
Harvest Complete  
70/50  
90/70  
249 244  
256 250  
320 289  
58  
59  
75  
27  
29  
28  
69  
70  
98  
66  
77  
108 163 44  
110 168 48  
117 192 68  
23  
30  
8'34"  
9'31"  
2'32"  
1'39"  
11'06"  
11'10"  
17'01"  
110/100  
110  
42 15'55" 1'06"  
Page E19  
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Refrigeration System  
CCM1030R  
Refrigeration Pressures PSIG  
Compressor Temps  
°F  
Discharge  
Ambients  
°F  
Cycle Times  
Minutes' Seconds"  
Discharge  
Suction  
Suction  
Start  
Harv  
End  
Harv  
Air/Water  
-20/40  
70/50  
Start  
End  
Start Freeze  
End Freeze  
Start  
End  
Start End  
Freeze  
Harvest Complete  
240 240  
270 266  
287 272  
419 323  
61  
72  
77  
93  
33  
34  
33  
28  
94  
101  
112  
117  
150  
104 159 53  
115 173 58  
118 182 60  
128 221 77  
38  
42  
6'44"  
8'36"  
0'55"  
0'55"  
7'39"  
9'31"  
107  
111  
135  
90/70  
43 10'21" 1'01"  
43 24'34" 0'55"  
11'22"  
25'29"  
120/100  
Page E20  
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Electrical System  
Control Circuit  
All machines in this manual are electro-mechanical controlled; however the control circuitry on the  
single evaporator units differs from the dual evaporator units and is detailed below.  
Selector Switch  
The selector switch is used to put the machine into the ICE making or WASH cycle or to turn the  
machine OFF. The WASH position allows only the water pump to run and is used during the  
cleaning process to circulate cleaning solution throughout the water system. When the selector  
switch is turned to the ICE position, the machine begins the freeze cycle.  
Contactor  
When the selector switch is in the ICE position, the contactor coil is energized and  
pulls in the contactor contacts. This energizes the compressor start components,  
which starts the compressor.  
Purge Switch  
The purge switch is a momentary switch used to manually energize the purge valve. It is used  
during the cleaning process to flush the cleaning solution from the water trough. The purge valve  
will remain energized as long as the purge switch is depressed.  
Note: Single Evaporator Units. The normally closed contacts of the purge switch also create a  
circuit to relay 1. These contacts should remain closed unless the switch is depressed. If the  
switch is defective and the normally closed contacts are open when the machine enters harvest,  
the machine will return to freeze when the timer initiate control opens.  
Compressor and Start Components  
The compressor should run during the entire cycle. If the machine is in the ICE position but the  
compressor is not running, check the compressor contactor to see if it is engaged. If the contactor  
is not engaged, the problem is not with the compressor or the compressor start components. If the  
contactor is engaged and there is correct voltage through the contactor, there could be a problem  
with one of the starting components or the compressor. It is recommended that the compressor  
starting components be replaced when replacing a compressor.  
Compressor Check  
Disconnect power before servicing  
If the compressor uses an  
internal overload, be  
certain that the compressor has cooled and the overload has reset before diagnosing the  
compressor. If the compressor is cool and is still not running, check the compressor motor  
windings by first removing the wires at the compressor terminals. With an ohmmeter, check for  
continuity between all three terminals, if an open circuit exists between any of the terminals, the  
compressor may need to be replaced. Check for continuity from each terminal to the compressor  
body, if continuity is found from any terminal to the compressor body, the compressor windings are  
shorted to ground and the compressor will need to be replaced. If the compressor appears to be  
good at this point, it is advisable to use a compressor analyzer to isolate the compressor from the  
start components while checking for a locked rotor. If an analyzer is not available, the compressor  
starting components must be checked.  
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Electrical System  
Compressor Check (Continued)  
If all starting components are good, check the amperage draw from the common terminal of the  
compressor, making sure proper voltage is supplied to the compressor and all wiring is properly  
connected. If the compressor does not start and there is excessive amperage draw, (see locked  
rotor amps on compressor tag) the compressor has a locked rotor and should be replaced.  
Overload (External)  
If there is no amperage draw check the compressor overload. The compressor overload can be  
checked for continuity after removing it from the compressor and letting it cool to room  
temperature. If there is no continuity between the two terminals, replace the overload. If the  
overload is suspected of opening prematurely, it should be replaced with an overload, which is  
known to be good.  
Capacitors  
The start capacitor is an electrical storage device used to provide starting torque to the  
compressor. If a start capacitor is defective, the compressor will not start properly.  
The run capacitor is an electrical storage device used to improve the running characteristics and  
efficiency of the compressor.  
Before checking a capacitor, it should be discharged by shorting across the terminals. If a run or  
start capacitor is cracked, leaking or bulging it should be replaced. If a capacitor is suspected of  
being defective, it can easily be checked by replacing it with a capacitor of the correct size, which  
is known to be good. If the compressor starts and runs properly, replace the original capacitor. A  
capacitor tester can also be used.  
Start Relay  
The start relay breaks the electrical circuit to the start windings when the compressor motor speed  
increases. If the relay is defective, the compressor will not start or it may start but will run for a  
very short time.  
A compressor relay can be checked by removing the relay and checking the relay contacts for  
damage and check for continuity across the closed relay points. Check the relay coil with an  
ohmmeter. If no continuity is read, replace the relay.  
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Electrical System  
Untimed Freeze Cycle  
During the freeze cycle the compressor, water pump and condenser fan motor(s) (if used) are  
running. On remote systems the liquid line solenoid is also energized, see Refrigeration System.  
As ice forms on the evaporator, the suction pressure drops. The machine is in the untimed portion  
of the freeze cycle and will remain in untimed freeze until the suction pressure drops low enough to  
close the timer initiate control. See page E10-12 for operating pressures.  
Timer Initiate  
The timer initiate is a low-pressure control that closes (cut in) on a drop in suction pressure. When  
the timer initiate control closes, the freeze timer is energized and the machine enters the timed  
portion of the freeze cycle. When the machine enters harvest, the suction pressure rises and  
opens the control. The timer initiate control should be adjusted per the chart on page E10-12.  
The timer initiate is factory set and does not normally need to be adjusted. If the ice bridge  
thickness is incorrect, the freeze timer should be adjusted rather than the timer initiate. See page  
F4 for freeze timer adjustment procedure. The timer initiate may need to be adjusted if excessive  
time (more than 7 minutes) is needed on the timer to achieve proper bridge thickness of if very little  
time (less than 1 minute) is needed on the timer to achieve proper bridge thickness.  
If the timer initiate is suspected of being out of adjustment or not operating properly, check the  
control as follows. Make sure the high temperature safety control is not open, see page F8. Turn  
the machine off and disconnect incoming power by unplugging the machine or switching the circuit  
breaker OFF. Attach one lead of a voltmeter to terminal 1 and the other lead to terminal 2 of the  
timer initiate control. Reconnect incoming power and turn the machine to the ICE position.  
Connect a low pressure gauge to the machine. The volt meter should read line voltage until the  
timer initiate control closes at which point the voltmeter should read zero volts. Note the suction  
pressure at this point. Adjust the timer initiate if necessary. Turning the adjustment screw counter  
clockwise will lower the cut in pressure, turning the adjustment screw  
clockwise will raise the cut in pressure. The differential is preset and  
does not require adjustment. If the control cannot be adjusted to the  
correct pressure setting or if the cut in point is erratic the control must be  
replaced. If the suction pressure is not dropping properly, see the  
Troubleshooting Tree “Machine Does Not Enter Harvest” in Section C.  
Adjustment Screw  
Relay 1  
Relay 1 is used to energize the fan motor on air-cooled units. The fan is energized through the  
common and normally closed contacts.  
Relay 2 (Note: Relay 2 is not used on Undercounter models)  
On single evaporator machines, relay 2 is used only to bypass the bin control during the freeze  
cycle and the first part of the harvest cycle. Relay 2 is energized through the normally closed  
contacts of the cam switch at the beginning of the freeze cycle. When energized, Relay 2 will  
prevent the machine from shutting off if the bin switch opens. The relay will remain energized until  
the cam switch is lifted onto the high part of the cam during harvest. At this time the machine will  
shut off if the bin switch is open.  
Relay 3 and Relay 4 (CCM1530 Applications) Relay 3 and Relay 4 bypass the bin switches to  
allow the curtains to open and close during the freeze cycle on an ice dispenser application. This  
will prevent the ice machine from shutting off during dispenser agitation.  
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Electrical System  
Timed Freeze  
When the freeze timer is energized, the machine  
is in the timed portion of the freeze cycle. The  
freeze timer will time out the remainder of the  
freeze cycle. Once the time has passed, the  
machine will enter the harvest cycle.  
Freeze Timer  
The freeze time is an adjustable timer used to  
control the ice bridge thickness. The freeze timer  
is factory set but may need to be adjusted upon  
initial start up of the machine. When time is  
added to the freeze timer, the length of the freeze  
cycle is increased, therefore the ice bridge  
thickness is increased. When time is removed  
from the timer, the freeze cycle is decreased and  
the ice bridge thickness is decreased.  
The freeze timer can be adjusted by sliding one  
or more switches to either the ON or OFF  
position to obtain the setting which will produce  
the proper bridge thickness. A timer setting of 128 and 256  
switched ON will provide an initial timer setting.  
Combine time in seconds  
The ice bridge thickness should be approximately 3/16”  
(5mm) on the CCU undercounter series, CCM0330 and  
CCU0300, and 1/8” (3 mm) on CCM0430 and larger  
units. If the bridge is too thick, remove enough time  
from the timer to achieve proper thickness. If the bridge  
is too thin, add enough time to the timer to achieve  
proper thickness.  
Bridge Thickness  
Check the freeze timer for proper operation as follows: Make sure that the high temperature safety  
control is not open, see page F8. Turn the machine OFF and disconnect the incoming power by  
unplugging the machine or switching the circuit breaker OFF. Attach one lead of a voltmeter to  
terminal 1 and the other lead to terminal 3 of the timer.  
Reconnect incoming power and turn the machine to the ICE position. The volt meter should read  
zero volts until the timer initiate closes at which point the timer will energize and line voltage should  
be read.  
When the timer counts out, the voltmeter will again read zero volts. The time it takes the freeze  
timer to time out, once it has been energized should match the timer adjustment. If it does not or if  
the timer never closes, the timer is defective.  
Note: The hot gas delay timer utilized on the CCM1448, CCM1530, CCM1848 and CCM2148  
series cubers should always be set at 4 seconds.  
Page F4  
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Electrical System  
Harvest Cycle  
Single Evaporator Machines  
Once the freeze timer has timed out, power is sent to relay 1 and the machine enters the harvest  
cycle. Once in harvest motor, the purge valve, hot gas valve and harvest motor are energized.  
The water pump continues to run during the first part of the harvest cycle so that mineral laden  
water remaining in the water trough can be pumped through the purge valve to the drain. The  
harvest motor turns the clutch assembly to actuate the cam switch.  
The cam switch is in the normally closed position during freeze and at the beginning of harvest.  
Once the clutch turns far enough to actuate the cam switch, the water pump and purge valve is de-  
energized. The harvest motor continues to turn the clutch. When the cam switch returns to the  
normally closed position, the machine returns to the freeze cycle.  
If the bin switch is open when the cam switch is actuated by the high part of the cam, the machine  
will shut off. Remote units pump down before shutting off.  
Relay 1  
When relay 1 is energized, the normally open contacts (1-B) close sending power to the hot gas  
valve and harvest motor and (1-A) close sends power to the purge valve and the coil of relay 1 to  
keep the coil energized when the timer initiate opens. The fan motor on self contained air cooled  
model are wired through the NC contacts of relay 1, when the contacts open during harvest, the  
condenser fan motor is de-energized.  
Relay 2 See Page F4.  
Dual Evaporator Machines (Prior to January 2008)  
Once the freeze timer has counter out, power is sent to: (A) harvest motor 1 and relay coil 1  
through the normally closed contacts of cam switch 1, (B) to harvest motor 2 and relay coil 2  
through the normally closed contacts of cam switch 2. The contacts of relay 1B and 2B closing,  
energizes the 4-second hot gas delay timer (Right Hand Timer)  
This 4-second delay will allow the harvest motors to rotate and allow the cam switches to switch to  
the normally open position before the low-pressure control opens during hot gas. The cam  
switches are now in the normally open position and will continue to energize the harvest motors  
and relays until the cam rotates and the switch returns to the normally closed position.  
Once the 4-second delay timer has timed out, the hot gas valves and purge valve will energize  
and allow hot gas into the evaporators. The bin control switches are by passed through the  
normally open contacts of relay 1A and 2A.  
The bin switches are bypassed to allow the cam switch to return to the normally closed position  
prior to the machine shutting down if the curtain is open. Each harvest assist motor will only make  
one revolution prior to shutting down on full bin or advancing to the next freeze cycle.  
Both hot gas valves and the water purge valve remain energized until both harvest assist motors  
complete one revolution. The water pump is energized throughout the harvest cycle. The unit will  
shut down if the curtains are open during the freeze cycle. Remote units pump down before  
shutting off. The fan motors on self contained air cooled model are wired through the NC contacts  
of relay 1B, when the contacts open during harvest, the condenser fan motors are de-energized.  
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Electrical System  
Harvest Assist Assembly  
The harvest assist assembly  
has several purposes: to assist  
in moving the ice off of the  
evaporator, to control the  
length of harvest and to  
terminate harvest. When the  
machine enters harvest, power  
is sent to the harvest motor  
which turns a slip clutch. A  
probe is attached to the  
rotating clutch and is pushed  
against the back of the ice  
slab. The clutch begins to slip  
when the probe applies  
approximately 25 ounces of  
pressure against the ice slab.  
It takes approximately 1 minute  
for hot gas to heat the evaporator enough to loosen the ice from the evaporator plate. At this point  
the clutch pressure overcomes the capillary attraction of the ice to the evaporator plate and the ice  
begins to move off of the evaporator. As the ice is being pushed, the clutch stops slipping and  
begins to turn, extending the probe enough to push the ice completely off of the evaporator.  
Harvest Motor  
The harvest motor is energized at the beginning of harvest and will remain energized until the  
machine returns to the freeze cycle. A defective harvest motor will usually not run. The harvest  
motor rotates in a clockwise direction. It is possible for a defective motor to run backwards  
(counterclockwise). If this happens the motor must be replaced. It is also possible for a defective  
motor to “bump” backwards immediately when entering harvest. This will activate the cam switch  
and cause the machine to return to the freeze cycle immediately after entering harvest. If the  
machine is in harvest only for a split second, the harvest motor may be defective. Verify the motor  
is defective by watching the clutch closely when the machine enters harvest.  
Clutch Assembly  
The clutch assembly consists of a slip clutch and cam. A probe is attached to the clutch assembly  
and the harvest motor turns the clutch during harvest. As the harvest motor turns, the clutch will  
slip while the probe is pushed against the ice. The clutch will continue to slip as long as the  
pressure required to move the ice is greater than the 25 oz. Once the evaporator has heated  
enough to break the bond of ice to the evaporator, the pressure required to move the ice becomes  
less than the 25 oz. And the clutch begins to move.  
The clutch assembly is not adjustable. If the clutch tension is weak (less than 25 oz.) a slow  
harvest or excessive ice meltage during harvest will result. If the clutch pressure becomes too  
tight, the force of the probe against the back of the ice may cause the slab to break and the ice  
may not fall off of the evaporator. If the clutch tension is suspected of being too tight or loose, turn  
the clutch by hand. The clutch should turn smoothly without “grabbing”, but should offer some  
resistance. If in doubt as to whether or not the clutch is defective, compare the tension with one  
that is known to be good.  
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Electrical System  
Probe Tip and Swivel  
The probe tip is attached to the clutch and makes contact with the back of the ice slab during  
harvest. The swivel allows the probe tip to pivot as the clutch turns so that the probe is pushed  
straight through the evaporator probe guide.  
The tip of the probe should be flush with the back of the evaporator or recessed up the 1/16 of an  
inch (.16cm). The probe tip must not extend into the freezing area of the evaporator during freeze.  
If the probe tip binds during operation it may cause the clutch to slip unnecessarily. This may  
occur if the harvest motor mounting bracket is not aligned properly or if the probe tip has excessive  
mineral deposits on it. Remove and clean the probe if necessary.  
To check the probe tip for binding, remove the shoulder bolt holding the swivel to the clutch and  
simulate the movement of the swivel and probe by moving the swivel in a circular motion around  
the outer portion of the clutch. The swivel should also move freely. If any resistance is felt the  
bracket should be adjusted by loosening the bracket mounting screws and repositioning the  
bracket until the probe moves freely.  
Cam Switch Operation-Single Evaporator Machines  
The actuator arm of the cam switch rides on the edge of the clutch assembly and is actuated by  
the high and low portion of the cam. When the machine is in the freeze cycle the actuator arm of  
the cam switch is in the low part of the cam. During freeze, power is supplied to the water pump  
and relay 2, through the normally closed contacts of the cam switch. When the machine enters  
harvest, power is supplied to the water pump and purge valve through the normally closed  
contacts of the cam switch and through the normally open contacts of relay 1 (closed during  
harvest). The water pump, purge valve and relay 1 remain energized until the cam switch is lifted  
on to the high part of the cam. Relay 2 will also de-energize at this time allowing the machine to  
shut off if the bin switch opens. Undercounter machines will have the water pump run continually  
until the machine shuts down.  
Cam Switch Operation-Dual Evaporator Machines (Prior to January 2008)  
Once the freeze timer has counted out, power is sent to: (A) harvest motor 1 and relay coil 1  
through the normally closed contacts of cam switch 1, (B) to harvest motor 2 and relay coil 2  
through the normally closed contacts of cam switch 2.  
This 4-second delay will allow the harvest motors to rotate and allow the cam switches to switch to  
the normally open position before the low-pressure control opens during hot gas. The cam  
switches are now in the normally open position and will continue to energize the harvest motors  
and relays until the cam rotates and the switch returns to the normally closed position.  
The bin switches are bypassed to allow the cam switch to return to the normally closed position,  
prior to the machine shutting down if the curtain is open. Each harvest assist motor will only make  
one revolution prior to shutting down on full bin or advancing to the next freeze cycle.  
Both hot gas valves and the water purge valve remain energized until both harvest assist motors  
complete one revolution. The water pump is energized throughout the harvest cycle. The unit will  
shut down if the curtains are open during the freeze cycle.  
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Electrical System  
Cam Switch Adjustment  
Check the cam switch for proper adjustment by slowing turning the clutch by hand in a  
counterclockwise direction while listening for the switch contacts to change. The switch should  
have an audible “click” as the roller reaches the high part of the cam. Now slowly turn the clutch in  
a clockwise direction and the switch should have an audible “click” as the roller reaches the low  
part of the cam. Adjust the switch by loosening the mounting screws and moving the position of  
the switch. If the cam switch is suspected of being defective it should be checked with an  
ohmmeter. It should not be assumed that the switch is good because a “click” can be heard  
when moving the actuator arm.  
High Temperature Safety Control  
The high temperature safety control is a thermal disc that protects the  
machine if the machine “sticks” in the harvest cycle. The high temperature  
safety is clamped to the suction line near the expansion valve thermal bulb.  
It opens when the suction line temperature reaches 120ºF (48.8ºC) and closes when the  
temperature drops to 80ºF (26.6ºC). If the high temperature safety opens during harvest, it will  
de-energize the harvest components. If the high temperature safety is defective and fails open  
during the freeze cycle, it will not allow the relay(s) to energize and the machine will not enter  
harvest. Remove the high temperature safety control and check it with an ohmmeter to verify that  
it is defective.  
Note: On models where the high temperature safety control is mounted on the hot gas valve  
outlet tube, the specifications are open at 180ºF and close at 140 ºF.  
Additionally the high temperature safety control is wired in series with the contactor. If the  
high temperature safety control opens for any reason, the compressor will shut down.  
This is an automatic reset control. Do not allow the machine to operate without the  
high temperature safety control. Damage to the machine may result.  
Bin Control Operation  
The bin control is used to shut the machine off when the bin fills with ice. The bin control must be  
checked upon installation or initial start-up and when performing maintenance.  
There is one bin switch for each evaporator. The actuator arm of the bin switch comes in contact  
with the splash curtain. When the bin is full of ice, the splash curtain is held open when ice drops  
off of the evaporator. This releases the pressure of the bin switch actuator arm allowing the switch  
to open.  
Single evaporator machines: If the bin switch opens during freeze, or the first part of harvest,  
relay 2 bypasses the bin switch and the machine will continue running. If the bin switch is opened  
during harvest, when the cam switch is lifted onto the high part of the cam, the machine will shut  
off. When the bin switch closes again, the machine will restart.  
Dual evaporator machines: If either bin switch opens during the freeze cycle, the machine will  
shut off. Relay 1 and relay 2 will bypass the bin switches during defrost. If either bin switch is  
open when the machine returns to the freeze cycle, the machine will shut off.  
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Electrical System  
Undercounter machines: A thermostatic bin control is used on the undercounter models. The bin  
thermostat is located in the control box with a capillary tube, which is in a brass thermo-well  
mounted to the water trough. When ice comes in contact with the capillary tube thermo-well, the  
bin thermostat opens and the machine will shut off.  
Bin Control Adjustment  
All Models (Except Undercounter Models): Check the bin switch for proper adjustment by  
swinging the bottom of the curtain away from the evaporator. Slowly bring the curtain towards the  
evaporator. The switch should close when the bottom edge of the curtain is even with the outer  
edge of the water trough. Adjust the switch by loosening the screws the hold the switch in place.  
Move the switch to the proper position and retighten the screws. Recheck the adjustment.  
Undercounter Models  
Turn the machine to the ICE or WASH position. Hold ice against the brass thermal-well mounted  
to the water trough making sure the ice is in contact with at least 6 inches (15 cm) of the thermal-  
well. The machine should shut off in approximately 1 minute, remove the ice, the machine should  
restart in approximately 3 minutes. If a major adjustment is required, turn the adjustment screw  
counterclockwise (warmer) until it stops then turn the adjustment screw clockwise (colder) 1/8 of a  
turn. This should put the control close to the proper adjustment, recheck and make a minor  
adjustment if needed. If a minor adjustment is required, turn the adjustment screw clockwise  
(colder) or counterclockwise (warmer).  
Pump Down System (Remote Only)  
If a remote machine is shut down by the selector switch or bin control, the liquid line solenoid valve  
is de-energized allowing the valve to close. This blocks the flow of refrigerant causing all the  
refrigerant to be pumped into the receiver and condenser. This is done to prevent liquid refrigerant  
from migrating into the compressor during the off cycle, which could damage the compressor on  
start-up. Also see Pump Down System in the Refrigeration Section on page E7. As the refrigerant  
is pumped into the receiver, the suction pressure begins to drop. Once the suction pressure  
reaches approximately 10 psi (.68 bar) the pump down control contacts open, which will de-  
energize the compressor contactor. When the machine is turned back on, power is supplied to the  
liquid line solenoid which opens the valve and allows the suction pressure to rise enough to close  
the pump down controls contacts.  
Pump Down Control  
The pump down control is a low pressure control that shuts the machine off when the  
suction pressure drops during the pump down phase. The control is factory set to open at  
10 psi (.68 bar) and close at 30 psi (2.04 bar). The pump down control does not normally  
need to be adjusted, however an adjustment may be made by turning the adjustment  
screw. Note: Later model machines have a non adjustable pump down control.  
Fan Control  
On models utilizing a fan control, the fan will cycle on at 250 psi (17.01) and  
cycle off at 200 psi (13.61 bar).  
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Electrical System  
Electrical Sequence for the CCM1448***1, CCM1848***1 and the CCM2148***1 Cubers.  
(Manufactured from January, 2008)  
CCM1448*A/W*1, CCM1848*W*1 and CCM2148*W**1 Electrical Sequence (Includes 50 hz.  
And 3 Phase)  
1. Suction Pressure starts out at approx 60 psi and slowly drops to close the LP Control.  
2. The LP Control energizes Relay Number 2 Coil.  
3. Relay Number 2A contacts C and NO close to bypass the bin switches, Relay Number 2B  
contacts close and energize the timer.  
4. The Timer times out and energizes Relay Number 1 Coil.  
5. Relay Number 1A contacts C and NO close to send power to Cam Switch Number 2 contacts C  
and NC which energizes Harvest Motor 2, Hot Gas Valves and Relay Number 3 Coil.  
6. Relay Number 1B contacts C and NO close to energize Harvest Motor 1 and Hot Gas 1.  
7. Relay Number 1B contacts C and NC open to de-energize the fan motors.  
8. When the LP Control opens during hot gas, the circuit is latched through the Purge Switch  
contacts C and NC.  
9. Relay Number 3A contacts C and NO close to send power to the Selector Switch and Hot Gas  
Valves when the curtain is open.  
10. Once Cam Switch 2 contacts C and NO close (High Side of the Cam) it will remain energized  
from the Selector Switch until contacts C and NC close. (Rotates 360 degrees)  
11. Once Cam Switch 1 contacts C and NO close (High Side of the Cam) the Harvest Motor will be  
energized and the Water Pump and Purge Valve will be de-energized when contacts C and NC  
open.  
12. With the bin switches open, Relay Number 3 Coil de-energized due to Cam Switch 2 contacts  
C and NC closing, the unit will shut off on full bin.  
Notes:  
●C=Common  
●NC=Normally Closed  
●NO-Normally Open  
●Relay Number 9 & 12=Common  
●Relay Number 1 & 4=Normally Closed  
●Relay Number 5 & 8=Normally Open  
●The Fan Control on the air cooled model cycles only one fan.  
●Relay 1, Puts unit into defrosts.  
●Relay 2, Bypasses the Bin Switches and initiates the Timer.  
●Relay 3, Bypasses the Bin Switches during harvest when Relay 2 is de-energized from a rise in  
the suction pressure opening the Low Pressure Control.  
Page F10  
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Electrical System  
Electrical Sequence for the CCM1448***1, CCM1848***1 and the CCM2148***1 Cubers.  
(Manufactured from January, 2008)  
CCM1448*R*1, CCM1848*R*1 and CCM2148*R*1 Electrical Sequence (Includes 50 hz. And 3  
Phase)  
This unit incorporates a timer upstream of the Low Pressure Control for Low Ambients.  
1. Timer number 2 (Six Minutes) is energized from the Selector Switch through Relay Number 3B  
contacts C and NC.  
2. Timer Number 2 (Six Minutes) times out and energizes Relay Number 2 Coil.  
3. Relay Number 2B contacts C and NO close which energizes the Low Pressure Control.  
4. The Low pressure Control closes and energizes the timer.  
5. The Timer times out and energizes Relay Number 1 Coil.  
6. Relay Number 1A contacts C and NO close to send power to Cam Switch Number 2 C and NC  
which energizes Harvest Motor 2, Hot Gas valves and Relay Number 3 Coil.  
7. Relay Number 1B contacts close to energize Harvest Motor 1 and Hot Gas Valve 1.  
8. When the Low Pressure Control opens during hot gas defrost, the circuit is latched through the  
Purge Switch contacts C and NC.  
9. Relay Number 3A contacts C and NO close to send power to the Selector Switch and Hot Gas  
Valves when the curtain is open.  
10. Once Cam Switch 2 contacts C and NO close (High side of the Cam) it will remain energized  
from the Selector Switch until contacts C and NC close. (Rotates 360 degrees)  
11. Once Cam Switch 1 contacts C and NO close (High Side of the Cam) the Harvest Motor will be  
energized and the Water Pump and Purge Valve will be de-energized when contacts C and NC  
open.  
12. With the bin switches open, Relay Number 3 Coil de-energized due to Cam Switch 2 contacts  
C and NC closing, the unit will shut off on full bin.  
Notes:  
●C=Common  
●NC=Normally Closed  
●NO-Normally Open  
●Relay Number 9 & 12=Common  
●Relay Number 1 & 4=Normally Closed  
●Relay Number 5 & 8=Normally Open  
●Relay 1, Puts unit into defrosts.  
●Relay 2, Bypasses the Bin Switches and initiates the Low Pressure Control  
●Relay 3, Bypasses the Bin Switches during harvest when Relay 2 is de-energized from a rise in  
the suction pressure opening the Low Pressure Control and energizes Timer Number2  
Page F11  
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Electrical System  
Electrical Sequence for the CCM1530*R21 (Manufactured from January, 2008)  
This unit incorporates a timer upstream of the Low Pressure Control for Low Ambients.  
1. When the Selector Switch is set to ICE, Relay Number 2 Coil is energized through Cam Switch  
contacts C and NC (Bypasses the Bin Controls)  
2. Relay Number 4B contacts C and NC energize Timer Number 2 (6 Minutes)  
3. Timer number 2 times out and energizes Relay Number 3 Coil.  
4. Relay Number 3B contacts C and NO close and energizes the Low Pressure Control.  
5. The Low Pressure Control closes to energize Timer Number 1.  
6. Timer Number 1 times out and energizes Relay Number 1 Coil  
7. Relay Number 1A contacts C and NO close and send power Cam Switch Number 2 C and NC  
which energizes Harvest Motor 2, Hot Gas valves and Relay Number 4 Coil.  
8. Relay Number 1B contacts C and NO close to energize Harvest Motor 1 and Hot Gas Valve 1.  
9. When the Low Pressure Control opens during hot gas, the circuit is latched through the Purge  
Switch contacts C and NC.  
10. Once Cam Switch 2 contacts C and NO close (High side of the Cam) it will remain energized  
from the Selector Switch until contacts C and NC close (Rotates 360 degrees)  
11. Once Cam Switch 1 contacts C and NO close (High side of the Cam) the Harvest Motor will be  
energized and the Water Pump, Purge Valve and Relay Number 2 Coil will be de-energized  
when contacts C and NC open.  
12. When Relay Number 2 Coil is de-energized and if the curtain switches or bin stat are open, the  
unit will pump down and shut off on full bin.  
Notes:  
●C=Common  
●NC=Normally Closed  
●NO-Normally Open  
●Relay Number 9 & 12=Common  
●Relay Number 1 & 4=Normally Closed  
●Relay Number 5 & 8=Normally Open  
●Relay 1, Puts unit into defrosts.  
●Relay 2, Bypasses the Bin Switches.  
●Relay 3,Energizes the Low Pressure Control  
●Relay 4,Resets Timer Number 2  
Page F12  
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Notes  
Table of Contents  
Table of Contents  
Page A1  
General Information  
How To Use This Manual  
Model And Serial Number Format  
Page A2  
Page A3  
Electrical And Mechanical Specifications  
Installation Guidelines  
Page A4-A5  
Page A6  
Electrical And Plumbing Requirements  
Remote Condenser Installation  
How The Machine Works  
Page A7-A12  
Page A13-A14  
Page A15  
Undercounter Model Bin Removal  
Page A16-A17  
Scheduled Maintenance  
Maintenance Procedure  
Cleaning and Sanitizing Instructions  
Winterizing Procedure  
Cabinet Care  
Page B1  
Page B1-B2  
Page B3  
Page B4  
Troubleshooting Trees  
How to Use The Troubleshooting Trees  
Troubleshooting Trees Table Of Contents  
Troubleshooting Trees  
Page C1  
Page C2  
Page C3-C18  
Water System  
Water Distribution And Components  
Page D1-D5  
Refrigeration System  
Refrigeration Cycle And Components  
Harvest Cycle  
Page E1  
Page E5  
Remote System  
Pump Down System  
Page E5-E6  
Page E7  
Refrigerant Specifications  
Page E8-E20  
Electrical System  
Control Circuit  
Page F1  
Compressor And Start Components  
Untimed Freeze Cycle  
Timed Freeze Cycle  
Harvest Cycle  
Pump Down System  
Bin Control  
Page F1-F2  
Page F3  
Page F4  
Page F5-F9  
Page F9  
Page F-9  
Page G1  
Wiring Diagrams  
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Wiring Diagram  
CCU0150/220 Air and Water Wiring Diagram  
includes 230 Volt and 50 Cycle  
Page G1  
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Wiring Diagram  
CCU0150/220 Air and Water Wiring Schematic  
Includes 230 Volt and 50 Cycle  
Page G2  
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Wiring Diagram  
CCM0830/CCM1030 Air and Water Wiring Diagram  
Includes 50 Cycle  
Page G3  
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Wiring Diagram  
CCM0830/CCM1030 Air and Water Wiring Schematic  
Includes 50 Cycle  
Page G4  
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Wiring Diagram  
CCM0830/CCM1030 Remote Wiring Diagram  
Includes 50 Cycle  
Page G5  
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Wiring Diagram  
CCM0830/CCM1030 Remote Wiring Schematic  
Includes 50 Cycle  
Page G6  
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Wiring Diagram  
CCM1030, 3 Phase, Air and Water Wiring Diagram  
Page G7  
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Wiring Diagram  
CCM1030, 3 Phase, Air and Water Wiring Schematic  
Page G8  
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Wiring Diagram  
CCM1030, 3 Phase, Remote Wiring Diagram  
Page G9  
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Wiring Diagram  
CCM1030, 3 Phase, Remote Wiring Schematic  
Page G10  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148 Air and Water Wiring Diagram  
Includes 50 Cycle  
Page G11  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148 Air and Water Wiring Schematic  
Includes 50 Cycle  
Page G12  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148 Remote Wiring Diagram  
Includes 50 Cycle  
Page G13  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148 Remote Wiring Schematic  
Includes 50 Cycle  
Page G14  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148, 3 Phase, Air and Water Wiring Diagram  
Page G15  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148, 3 Phase, Air and Water Wiring Schematic  
Page G16  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148, 3 Phase, Remote Wiring Diagram  
Page G17  
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Wiring Diagram  
CCM1448/CCM1848/CCM2148, 3 Phase, Remote Wiring Schematic  
Page G18  
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Wiring Diagram  
CCM1530 Remote Wiring Diagram  
Page G19  
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Wiring Diagram  
CCM1530 Remote Wiring Schematic  
Page G20  
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Wiring Diagram  
CCU0300, 115V, Air and Water Wiring Diagram  
Page G21  
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Wiring Diagram  
CCU0300, 115V, Air and Water Wiring Schematic  
Page G22  
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Wiring Diagram  
CCU0300, 50 Cycle, Air and Water Wiring Diagram  
Page G23  
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Wiring Diagram  
CCU0300, 50 Cycle, Air and Water Wiring Schematic  
Page G24  
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Wiring Diagram  
CCM0330/CCM0430, 115V, Air and Water Wiring Diagram  
Page G25  
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Wiring Diagram  
CCM0330/CCM0430, 115V, Air and Water Wiring Schematic  
Page G26  
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Wiring Diagram  
CCM0322/CCM0522, 115V, Air and Water Wiring Diagram  
Page G27  
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Wiring Diagram  
CCM0322/CCM0522, 115V, Air and Water Wiring Schematic  
Page G28  
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Wiring Diagram  
CCM0330/CCM0430 Air and Water Wiring Diagram  
Includes 230/60/1 and 50 Cycle  
Page G29  
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Wiring Diagram  
CCM0330/CCM0430 Air and Water Wiring Schematic  
Includes 230/60/1 and 50 Cycle  
Page G30  
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Wiring Diagram  
CCM0322/CCM0522, 50 Cycle, Air and Water Wiring Diagram  
Page G31  
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Wiring Diagram  
CCM0322/CCM0522, 50 Cycle, Air and Water Wiring Schematic  
Page G32  
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Wiring Diagram  
CCM0530 Air and Water Wiring Diagram  
Page G33  
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Wiring Diagram  
CCM0530 Air and Water Wiring Schematic  
Page G34  
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Wiring Diagram  
CCM0530 Remote Wiring Diagram  
Page G35  
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Wiring Diagram  
CCM0530 Remote Wiring Schematic  
Page G36  
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Wiring Diagram  
CCM0630 Air and Water Wiring Diagram  
Includes 50 Cycle  
Page G37  
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Wiring Diagram  
CCM0630 Air and Water Wiring Schematic  
Includes 50 Cycle  
Page G38  
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Wiring Diagram  
CCM0630 Remote Wiring Diagram  
Includes 50 Cycle  
Page G39  
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Wiring Diagram  
CCM0630 Remote Wiring Schematic  
Includes 50 Cycle  
Page G40  
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Wiring Diagram  
CCM1448 A/W 2/5 1, CCM1848 W 2 1 and CCM2148 W 2 1 Wiring Diagram (Jan 2008)  
Page G41  
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ICE Series  
Wiring Diagram  
CCM1448 A/W 2/5 1, CCM1848 W 2 1 and CCM2148 W 2 1 Wiring Schematic (Jan2008)  
Page G42  
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Wiring Diagram  
CCM1448 A/W 3 1, CCM1848 W 3 1 and CCM2148 3 W 1 Wiring Diagram (Jan 2008)  
Page G43  
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Wiring Diagram  
CCM1448 A/W 3 1, CCM1848 W 3 1 and CCM2148 3 W 1 Wiring Schematic (Jan 2008)  
Page G44  
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Wiring Diagram  
CCM1448 R 2/5 1, CCM1848 R 2 1 and CCM2148 R 2 1 Wiring Diagram (Jan 2008)  
Page G45  
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Wiring Diagram  
CCM1448 R 2/5 1, CCM1848 R 2 1 and CCM2148 R 2 1 Wiring Schematic (Jan 2008)  
Page G46  
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Wiring Diagram  
CCM1448 R 3 1, CCM1848 R 3 1 and CCM2148 R 3 1 Wiring Diagram (Jan 2008)  
Page G47  
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Wiring Diagram  
CCM1448 R 3 1, CCM1848 R 3 1 and CCM2148 R 3 1 Wiring Schematic (Jan 2008)  
Page G48  
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Wiring Diagram  
CCM1530 R 2 1 Wiring Diagram (Jan 2008)  
Page G49  
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Wiring Diagram  
CCM1530 R 2 1 Wiring Schematic (Jan 2008)  
Page G50  
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