Mercury 6-5 Stat – Installation & User Guide
Mercury 6-5
5 Channel
Thermostat
Installation Guide
For Product: -
PR0091
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installing or maintaining
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Mercury 6-5 Stat – Installation & User Guide
The Mercury Range
From Resource Data Management
This documentation refers to the Mercury 6-5 - 5 Channel Thermostat
Description
The Mercury 5 Channel Thermostat has 5 thermostat functions. They can be configured for independent use,
where each function is controlled by an individual probe or the controller can be configured to operate
selected thermostats from one temperature probe. Each channel can be individually configured for heating or
cooling applications with a selection of parameters. There is a 7-day timer with two on and off’s. Included in
the controller is a frost detect parameter. This over-rides the timer function, when the timer is off, to begin
heating should the channel probe reach the frost detect value. The controller has the ability to use any of the
channels to operate as a timer. Each input can also accept over-ride commands as detailed later in the user
guide. Note:- the over-ride commands work only on channels selected as a thermostat, it has no effect if a
channel is set to operate as a timer.
The 5 Channel Thermostat can operate stand-alone or it can be networked through either an "IP" network
module or a Mercury IP Hub. The 5 Channel Thermostat supports PT1000 or NTC2000 or NTC2k25
temperature probes (note all 6 inputs are either PT1000 or NTC2000 or NTC2k25)
Configuration
There is one type of controller within the 5 Channel Thermostat (Type 1)
Display value Type M
1
5 Channel Thermostat
Network
The controllers are capable of connecting to a TCP/IP local area network or controlling in standalone mode
with no network output.
To connect to a network you must add the correct communications module.
•
•
IP Futura module - (Part No PR0016)
Mercury IP Hub - (Part No PR0018)
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Mercury 6-5 Stat – Installation & User Guide
Connections
All connections are made to the back of the controller. The diagram below shows the connection detail. Inputs
and outputs are assigned according to the chosen configuration. See Specification for further details on
connections.
!
Do not connect an earth.
Input/Output Allocation Tables
An over-ride can be achieved by switching in a fixed value resistor in parallel with the probe inputs as shown
in the table below.
5 Ch Thermostat Description
Alarm Action
(Switched Resistor)*
Input 1
Input 2
Input 3
Input 4
Input 5
Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
Probe 1 and Over-ride 1
Yes
Yes
Yes
Yes
Yes
N/A
N/A
N/A
N/A
N/A
Over-ride signal 1
Over-ride signal 2
Over-ride signal 3
Over-ride signal 4
Over-ride signal 5
Probe 2 and Over-ride 2
Probe 3 and Over-ride 3
Probe 4 and Over-ride 4
Probe 5 and Over-ride 5
Thermostat Channel 1
Thermostat Channel 2
Thermostat Channel 3
Thermostat Channel 4
Thermostat Channel 5
* For PT1000 probes use 820 Ohm
For NTC2000 and NTC2k25 probes use 590 Ohm
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Mercury 6-5 Stat – Installation & User Guide
Setting up the controller
Access to the controller can be achieved several ways
•
•
Through the front mounted buttons
Direct access by PC or palm top into the rear comms port. This requires a software package available
on the RDM website
•
Through the RDM Data Director or Data Manager.
Set-up Mode
Set-up through front buttons
ENTER
UP
DOWN
To enter set-up mode, hold the Enter and Down buttons together for approximately 3 seconds until the
message “Ent” appears on the display. Now press the Enter button again to enter the function menu. IO will
be displayed. Scroll up or down to go through the list.
Set-up Function Menu
Display Option
Explained in Paragraph
IO
View Input/Output States
Set/view Parameters
PArA
Unit
TyPE
rtc
Set Probe type and units ( oC or oF)
Set/View Controller Type
nEt
Set/view network configuration
View software version
Probe offset
SoFt
OFSt
ESC
Escape back to normal operation
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Mercury 6-5 Stat – Installation & User Guide
Recommended set-up method
If you are not connecting to a network and want to set up the controller through the buttons we recommend
you use the following order from the function menu.
rtc. Real time clock (This will automatically synchronise on network systems)
a. Use the up or down buttons to scroll through the display until the display reads “rtc”
b. Press enter. The display will show “t-1”. press enter again
c. Scroll hours up or down (0 – 23) press enter
d. Use up button to select “t-2”, press enter
e. Scroll minutes up or down (0 – 59) press enter
f. Repeat for t-3
g. Repeat for t -4
h. Repeat for t -5
i. Repeat for t -6
(seconds 0 – 59)
(Days up to 31)
(months up to 12)
(Year up to 99)
j. Use up button to display “ESC”, press enter to display “rtc”
Time clock is now set
type. view controller type
The controller Type is preset at the factory and cannot be changed.
a. From the function menu scroll to select type, press enter
b. View the type number 1
c. Press enter.
d. Scroll to select “ESC”
e. Press enter
PArA. Set/view parameters (This can be achieved at the network front end)
a. From the function menu scroll to select PArA
b. Pressing Enter while PArA is displayed will enter the parameter menu. The first parameter option
will be displayed as P-01. Pressing the Up or Down button will present the other parameter
options P-02, P-03 etc. See the parameter list below to find what parameter number corresponds
to which actual parameter. Pressing the Enter button will show the current value of the selected
parameter. Press Up or Down to modify the value and press Enter again to save the value. The
parameter list number will be displayed again. Two other options are present in the parameter
menu – dFLt and ESC. Selecting ESC will exit setup mode. Selecting dFLt will reset all
parameters back to the default values for the current type of controller.
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installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Parameter Tables:
Parameter table for 5 Channel Thermostat
Number Parameter
Range oC ( oF )
Step
0.1
0.1
1
Units
Deg
Deg
Default
15.0
5.0
P-01
P-02
P-03
Stat1 Temp Cut-In
Stat1 Diff
Stat1 Select
-49 to 30oC (-56.2 to 86)
0 to 10oC (32 to 50)
0 = Off
2
1 = Timer
2 = Probe 1
3 = Probe 2
4 = Probe 3
5 = Probe 4
6 = Probe 5
P-04
Stat1 Type
0 = Cooling
1 = Heating
1
1
P-06
P-07
P-08
P-09
P-10
Stat1 Frost Detect
Stat1 High Temp Alarm
Stat1 Low Temp Alarm
Stat1 Alm Delay
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
00:00 to 99:00
0.1
0.1
0.1
01:00
1
Deg
Deg
Deg
mm:ss
0.0
25.0
0.0
20:00
0
Stat1 Rly Inv
0 = Off
1 = On
P-11
P-12
P-13
Stat2 Temp Cut-In
Stat2 Diff
Stat2 Select
-49 to 30oC (-56.2 to 86)
0 to 10oC (32 to 50)
0.1
0.1
1
Deg
Deg
15.0
5.0
3
0 = Off
1 = Timer
2 = Probe 1
3 = Probe 2
4 = Probe 3
5 = Probe 4
6 = Probe 5
P-14
Stat2 Type
0 = Cooling
1 = Heating
1
1
P-16
P-17
P-18
P-19
P-20
Stat2 Frost Detect
Stat2 High Temp Alarm
Stat2 Low Temp Alarm
Stat2 Alm Delay
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
00:00 to 99:00
0.1
0.1
0.1
01:00
1
Deg
Deg
Deg
mm:ss
0.0
25.0
0.0
20:00
0
Stat2 Rly Inv
0 = Off
1 = On
P-21
P-22
P-23
Stat3 Temp Cut-In
Stat3 Diff
Stat3 Select
-49 to 30oC (-56.2 to 86)
0 to 10oC (32 to 50)
0.1
0.1
1
Deg
Deg
15.0
5.0
4
0 = Off
1 = Timer
2 = Probe 1
3 = Probe 2
4 = Probe 3
5 = Probe 4
6 = Probe 5
P-24
Stat3 Type
0 = Cooling
1 = Heating
1
1
P-26
P-27
P-28
P-29
P-30
Stat3 Frost Detect
Stat3 High Temp Alarm
Stat3 Low Temp Alarm
Stat3 Alm Delay
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
00:00 to 99:00
0 = Off
1 = On
0.1
0.1
0.1
01:00
1
Deg
Deg
Deg
mm:ss
0.0
25.0
0.0
20:00
0
Stat3 Rly Inv
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Mercury 6-5 Stat – Installation & User Guide
Parameter table for 5 Channel Thermostat Continued.......
Number Parameter
Range oC ( oF )
Step Units
Default
15.0
5.0
P-31
P-32
P-33
Stat4 Temp Cut-In
Stat4 Diff
Stat4 Select
-49 to 30oC (-56.2 to 86)
0 to 10oC (32 to 50)
0.1
0.1
1
Deg
Deg
0 = Off
5
1 = Timer
2 = Probe 1
3 = Probe 2
4 = Probe 3
5 = Probe 4
6 = Probe 5
P-34
Stat4 Type
0 = Cooling
1 = Heating
1
1
P-36
P-37
P-38
P-39
P-40
Stat4 Frost Detect
Stat4 High Temp Alarm
Stat4 Low Temp Alarm
Stat4 Alm Delay
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
00:00 to 99:00
0.1
0.1
0.1
Deg
Deg
Deg
0.0
25.0
0.0
20:00
0
01:00 mm:ss
1
Stat4 Rly Inv
0 = Off
1 = On
P-41
P-42
P-43
Stat5 Temp Cut-In
Stat5 Diff
Stat5 Select
-49 to 30oC (-56.2 to 86)
0 to 10oC (32 to 50)
0.1
0.1
1
Deg
Deg
15.0
5.0
1
0 = Off
1 = Timer
2 = Probe 1
3 = Probe 2
4 = Probe 3
5 = Probe 4
6 = Probe 5
P-44
Stat5 Type
0 = Cooling
1 = Heating
1
1
P-46
P-47
P-48
P-49
P-50
Stat5 Frost Detect
Stat5 High Temp Alarm
Stat5 Low Temp Alarm
Stat5 Alm Delay
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
-42 to 128oC (-43 to 262)
00:00 to 99:00
0 = Off
1 = On
0.1
0.1
0.1
Deg
Deg
Deg
0.0
25.0
0.0
20:00
0
01:00 mm:ss
1
Stat5 Rly Inv
P-70
Timer Mode
0 = Local
1
0
1 = Remote
P71
P72
P73
P74
P75
P76
P77
P78
Sunday On Time 1
Sunday Off Time 1
Sunday On Time 2
Sunday Off Time 2
Monday On Time 1
Monday Off Time 1
Monday On Time 2
Monday Off Time 2
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:01 hh:mm 08:00
00:01 hh:mm 20:00
00:01 hh:mm 08:00
00:01 hh:mm 20:00
00:01 hh:mm 08:00
00:01 hh:mm 20:00
00:01 hh:mm 08:00
00:01 hh:mm 20:00
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Mercury 6-5 Stat – Installation & User Guide
Parameter table for 5 Channel Thermostat Continued.......
Number Parameter
Tuesday On Time 1
Range
Step
Units
Default
P79
P80
P81
P82
P83
P84
P85
P86
P87
P88
P89
P90
P91
P92
P93
P94
P95
P96
P97
P98
dFLt
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
00:01
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
hh:mm 08:00
hh:mm 20:00
Tuesday Off Time 1
Tuesday On Time 2
Tuesday Off Time 2
Wednesday On Time 1 00:00 to 23:59
Wednesday Off Time 1 00:00 to 23:59
Wednesday On Time 2 00:00 to 23:59
Wednesday Off Time 2 00:00 to 23:59
Thursday On Time 1
Thursday Off Time 1
Thursday On Time 2
Thursday Off Time 2
Friday On Time 1
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
00:00 to 23:59
Friday Off Time 1
Friday On Time 2
Friday Off Time 2
Saturday On Time 1
Saturday Off Time 1
Saturday On Time 2
Saturday Off Time 2
Factory Defaults
Units and Probe Type
Change the probe type to: -
0 = PTC1000 oC
1 = PTC1000 oF
2 = NTC2000 oC
3 = NTC2000 oF
4 = NTC2k25 oC
5 = NTC2k25 oF
Range -42 oC to +128 oC
Range -43 oF to +262 oF
Range -37 oC to +54 oC
Range -34oF to +129 oF
Range -37 oC to +54 oC
Range -34oF to +129 oF
Probe Fault
If a probe fault occurs then the controller will pulse its associated relay(s) on for 5 minutes then off for 5
minutes.
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Mercury 6-5 Stat – Installation & User Guide
Network Configuration
The final section to set-up is the network address. In all instances, this must be done before the controller is
plugged into the site network. The controllers have an auto-initialise function, which will automatically log the
device onto the site network. If the wrong address has been entered onto the network, you will have to reset
the controller address by setting the address to 00-0, and then re-enter the correct address. (You may have to
deregister the wrong address from the home system as well).
To set the controller onto a network you must first connect the controller to a communications module. This is
either a: -
•
•
IP Futura or
Mercury Hub
IP Futura module
In an IP system there are two options
•
•
IP-L
IP-r
IP-L allows you to fix an IP address into the controller, which you would use when you are connecting the
controllers onto a customer’s local area network. This would allow the customer to view each controller using
Internet Explorer
IP-r allows you to give each controller on the system a unique number. This number is then allocated a
dynamic IP address by the system DHCP server (such as the RDM Data Director)
IP-L
To configure the communication module for IP-L, set all three rotary switches to zero. The module should
then be connected to the controller.
1. nEt. From the function menu you can now select nEt
•
•
Press enter and the display will show “IP-L”, press enter
You can now set the address using the table below
Display
IP-1
IP-2
IP-3
IP-4
nL
Option
IP Address byte 1
IP Address byte 2
IP Address byte 3
IP Address byte 4
Network Mask Length
Gateway Address byte 1
Gateway Address byte 2
Gateway Address byte 3
Gateway Address byte 4
gt-1
gt-2
gt-3
gt-4
ESC
Exit network menu. N.B. this option must be selected
to save any changes made in this menu
IP-r
To configure the communication module for IP-r, set the three rotary switches to give each controller a unique
identifier. The module should then be connected to the controller and the network.
The green network LED on the controller will flash until it has been logged on to the network. The Green
network LED will remain permanently on while it is on-line.
Please refer to the Mercury Hub user guide, which can be obtained from the RDM website, for information
regarding connecting a controller to a network.
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Over-ride Operation
The 5 Channel Thermostat can operate either from its internal channel time settings or from a network Data
Manager GP Timer channel (P70 sets the mode either local or remote). If the 5 Channel Thermostat is set up
to use the remote timing channels it reverts to local mode if network communications are lost for more than 5
minutes. An over-ride occurs when a resistor is switched in across the input which has to be overridden,
however when the over-ride signal is removed the channel returns too normal operation.
Thermostat Over-ride: -
When a channel is configured for thermostat operation the following will occur when an over-ride is present on
the channel input. In the example below channel 1 is set as a thermostat in a heating application, the relay
inverse feature is disabled, the controller timer is set to local operation and is off. When the timer is in the off
period the channel will not be enabled for heating and the thermostat relay remains off, providing the probe
temperature is not below the frost detect set point. As shown in the diagram an over-ride is applied to channel
1, this will enable the channel. The thermostat relay does not immediately turn on, it only does so when the
temperature drops below the cut-in set point. The controller will continue normal temperature control until the
over-ride is removed or the next scheduled off occurs in the local timer schedule. When the timer is in the on
period, the over-ride has no effect. Note:- An over-ride should be removed as soon as it is not required on an
input.
Over-ride
Activated
Diff
Cut-in Set
Point
On
Off
Frost
Detect
Time
Thermostat Relay Status
Ch 1 Probe Temperature
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Mercury 6-5 Stat – Installation & User Guide
Normal Operation
During normal operation, the controller will display "on". If the 5 Channel Thermostat is on a network and on-
line, the green network LED will be on. If any alarms are generated the red LED will light. The yellow LED has
no function and will not light.
Frost Detect
The frost detect parameter is used to provide heating in an instance where the timer status is off. Each
thermostat channel has its own frost detect value that can be configured. Once the temperature drops below
the frost detect value the controller channel will heat to the frost detect value plus the channels diff parameter.
For example the 5 Channel Thermostat is used to heat a room, the channel configured has a diff of 5oC, a
frost detect value of 0oC and the timer is off. The channel will switch its associated relay on when the
temperature drops below 0oC. The room will begin to heat and the relay is on, it will stay on until the
temperature rises above 5oC. At this point the relay will be turned off. The relay will be turned on again if the
room temperature drops below 0oC.
Invert
The 5 Channel Thermostat has a channel setting to invert the output, if this option is used, the output is off
when the timer is on and the output is on when the timer is off.
Network
The Network green LED flashes if the controller goes off-line.
Probe Offset
Each probe can be offset by up to ±10 oC to compensate for long cable runs.
Channel Off
It is possible to turn channels off if they are not in use.
Channel Timer
It is possible to use each channel as a timer. The channel will follow the controller’s internal timer schedule or
a remote GP timer for on and off times.
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switched off before
installing or maintaining
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Mercury 6-5 Stat – Installation & User Guide
Thermostat Cooling/Heating Operation
The diagrams below outline the operation of a channel when it is configured for heating or cooling
applications. In this instance the 5 Channel Thermostat’s local timer is on.
Cooling Thermostat graph
Heating Thermostat graph
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Mercury 6-5 Stat – Installation & User Guide
Viewing
Apart from setting up the controller, you can also view the status of the inputs and outputs.
1. IO. View Inputs / Outputs and States
a. From the function menu, select “IO”, press enter
b. You can now scroll through the IO tables as set out below. The tables you view will depend
on the controller type configuration.
Input/Output table for 5 Channel Thermostat
Number IO
Range
Step
0.1
0.1
0.1
0.1
0.1
Units
Deg
Deg
Deg
Deg
Deg
I-01
Probe 1
-42 to 128 oC
-42 to 128 oC
-42 to 128 oC
-42 to 128 oC
-42 to 128 oC
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
0 (Off), 1 (On)
I-02
Probe 2
I-03
Probe 3
I-04
Probe 4
I-05
Probe 5
I-06
I-07
I-08
I-09
Over-ride 1
Over-ride 2
Over-ride 3
Over-ride 4
Over-ride 5
Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
I-10
O-01
O-02
O-03
O-04
O-05
O-06
Timer
Display Messages
The following messages can appear on the Mercury display.
Display
System status
on
Controller On
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Mercury 6-5 Stat – Installation & User Guide
Network Alarms
The table below shows the text and associated type number that is sent to the system "front end". The type
number is normally used to provide different alarm actions.
Alarm text
Type
Probe 1 Faulty
Probe 2 Faulty
Probe 3 Faulty
Probe 4 Faulty
Probe 5 Faulty
6
6
6
6
6
Channel 1 Over Temperature
Channel 2 Over Temperature
Channel 3 Over Temperature
Channel 4 Over Temperature
Channel 5 Over Temperature
4
4
4
4
4
Channel 1 Under Temperature
Channel 2 Under Temperature
Channel 3 Under Temperature
Channel 4 Under Temperature
Channel 5 Under Temperature
5
5
5
5
5
Channel 1 Over-ride
Channel 2 Over-ride
Channel 3 Over-ride
Channel 4 Over-ride
Channel 5 Over-ride
16
16
16
16
16
GP Timer Set-up
It is possible to set the 5 Channel Thermostat for remote operation (P70 = 1). A GP Timer must be set up to
control the timer on/off periods of the 5 Channel Thermostat. For GP Timer set up please refer to the Data
Manager user guide found on the RDM website. The following settings should be followed in the GP setup.
Output Type
Output Mask
–
–
This should be set to “General”.
This should match the “Controller Name”.
Output Channel –
This should be set to “5”. This will allow the GP Timer to control the state of the timer.
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Mercury 6-5 Stat – Installation & User Guide
Specification
General
Power requirements:
Supply Voltage Range:
Supply Frequency:
100 - 240 Vac ±10%
50 - 60 Hz ±10%
Maximum supply current:
Typical supply current:
<1 Amp (With no relay loads)
<0.5 Amp
Operating temperature range: +50C to +500C
Operating Humidity:
Storage temperature range:
Environmental:
80% maximum
-200C to +650C
Indoor use at altitudes up to 2000m, Pollution Degree 1,
Installation Category II.
Voltage fluctuations not to exceed ±10% of nominal voltage
110mm (W) x 60mm (H) x 100mm (D)
150 Grams
Size:
Weight:
Safety:
EN61010
EMC:
Ventilation:
Class 2 Insulation:
EN61326; 1997 +Amdt. A1; 1998
There is no requirement for forced cooling ventilation
No protective Earth is required and none should be fitted.
The host equipment must provide a suitable external over-current protection device such as: -
Fuse:
Or MCB:
6.3A 240 Vac Antisurge (T) HRC conforming to IEC 60127
8A, 240 VAC Type C conforming to BS EN 60898
The host equipment must provide adequate protection against contact to hazardous live parts.
Relays
Max current relay 1:
Max Voltage relay 1:
Exclusive common
6A (non inductive)
260Vac (external supply)
Max current relay 2:
Max Voltage relay 2:
Shared common with relay 3
4A (non inductive)
260Vac (external supply)
Relays 2 and 3 share a common
supply line and the loads can
have a combined total of 8A.
Relay 2 or 3 can switch a maximum
of 6A provided the other is at 2A or.
lower.
Max current relay 3:
Max Voltage relay 3:
4A (non inductive)
260Vac (external supply)
Shared common with relay 2
Max current relay 4:
3A (non inductive)
Max Voltage relay 4:
260Vac (Internal supply)
Common connected to Input "live"
Max current relay 5:
3A (non inductive)
Max Voltage relay 5:
260Vac (Internal supply)
Common connected to Input "live"
For compliance with the LVD, relays 2 and 3 common must be at the same potential as the supply voltage.
Warning:
!
Relays 4 and 5 outputs have hazardous voltages (Supply input voltage potential).
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Inputs:
Input resistance:
Input type
3.01K Ohms (for PTC or NTC type probes)
PT1000
NTC2000
NTC2k25
Comms:
RS232 with flow control
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Installation:
Panel Cut-out:
72mm
17mm
34mm
93mm
2 holes: 3.5mm dia.
Fixing:
The controller can be fixed either by 2 X M3 screws from the rear or by the plastic retaining device (PR0329),
obtainable from RDM.
Clearances:
The controller must have 5mm clearance above the top and below bottom, and 25mm clearance from the
sides. Clearance at the rear is dependant on the wiring.
There is no requirement for forced cooling ventilation
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Wiring:
!
Relay 4 and 5 N/O are fed from the supply input
Note:
Suitable mechanical restraints on the wiring to the controller may be required; dependant on cable types, to
prevent undue stress or distortion on the controller connectors.
Over-ride input Resistors:
Supply Neutral
Example of 820-Ohm resistor fitted on Input 2
Not Used
Supply Live, Relay 4&5 Common
Relay 5 N/O
Relay 4 N/O
Relay 2&3 Common
Relay 3 N/O
Relay 2 N/O
Relay 1 Common
Relay 1 N/O
Connect to remote switch
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Fuse:
The host equipment must provide a suitable external over-current protection device such as: -
Fuse:
Or MCB:
6.3A, 240 Vac Antisurge (T) HRC conforming to IEC 60127 (Relay 4 & 5 fully loaded)
8A, 240 Vac Type C conforming to BS EN 60898 (Relay 4 & 5 fully loaded)
Cleaning:
Do not wet the controller when cleaning. Clean the front by wiping with slightly damped lint free cloth.
Please note: The specifications of the product detailed on this set up guide may change without
notice. RDM Ltd shall not be liable for errors or for incidental or consequential damages, directly or
indirectly, in connection with the furnishing, performance or misuse of this product or document.
Ensure that all power is
switched off before
installing or maintaining
this product
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Mercury 6-5 Stat – Installation & User Guide
Revision History
Revision
Date
27/10/2006
01/03/2007
05/03/2007
Changes
1.0
1.1
1.2
First Issue
General Tidy Up
Removal of over-ride description (for when a channel is configured as a
timer).
Ensure that all power is
switched off before
installing or maintaining
this product
Revision 1.2
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