Honeywell Modutrol IV Series Actuators
Models M4182, M9185D, & M8182
These instructions apply to the external field installation of
Honeywell actuators on Greenheck model VCD Control Dampers,
FSD Fire/Smoke Dampers, and SMD Smoke Dampers when they
are duct mounted or sleeved.
Honeywell actuators rotate to their energized position when power
is applied and spring return to their fail position when power is
interrupted, except for the M9185D which is a modulating actuator
that spring returns to the fail position when power is interrupted
The M9185 model actuator, when installed on model FSD fire/
smoke and SMD smoke dampers in accordance with these
instructions, complies with the requirements of NFPA 90A and
UL Standards 555 and 555S. Smoke or Fire/Smoke dampers are
normally arranged to operate automatically in response to heat,
signals from a heat or smoke detector, or a building alarm system.
Installation must be acceptable to the authority having jurisdiction.
11
These parts are for
use with a 1 in. shaft
10
12
17
15
14
18
6
9
19
1
16
20
21
8
13
14
7
6
13
5
4
3
Note: These actuator models require field
calibration for the zero and span setting.
2
6
Part Number Quantity Description
Part Number Quantity Description
1
2
3
4
5
6
7
8
9
1
1
1
4
4
10
2
2
2
1
Actuator
12
13
14
15
16
17
18
19
20
21
1
2
2
1
1
4
1
1
2
4
3/8 -16 Spinlock Nut
Linkage Adjustment Pin
1/4 in. E-Ring
Drive Link
Stand Off Bracket
1/4 in.-20 x 1/2 in. Thread Cutting Screw
Ball Bearing
221455A Crankarm
#10 Tek Screw
Mounting Bracket
Mounting Plate
1/4 -20 x 1/2 in. Threadstud
1/4 -20 x 3/4 in. Threadcutting Screw
1/4 -20 Spinlock Nut
1/2 in. Crankarm
5/16 -18 x 11/2 in. Bolt
5/16 -18 Spinlock Nut
1 in. Crankarm
1/4 in.-20 x 1/2 in. Hex Bolt
10
11
1
3/8 -16 x 21/2 in. Carriage Bolt
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Steps 6a b for dampers
with 1 in. shafts
(substitute these parts in
place of 7, 8, 9, &13)
6. Assemble the linkage
Parts needed for dampers with 1/2 in. shafts:
(Qty. 2) 1/2 in. crankarms (item 7)
(Qty. 2) 5/16 - 18 x 11/2 in. bolts ( item 8)
(Qty. 2) 5/16 - 18 spinlock nuts ( item 9)
(Qty. 1) Drive link (item 15)
11
10
12
(Qty. 2) Linkage adjustment pin (item 13)
(Qty. 2) 1/4 - 20 spinlock nuts (item 6)
(Qty. 1) Actuator crankarm (item 19)
(Qty. 2) 1/4 in. E-Ring (item 14)
15
14
Parts needed for dampers with 1 in. shafts:
(Qty. 1) 1 in. crankarm (item 10)
(Qty. 1) 3/8 -16 x 21/2 in. bolts (#11)
(Qty. 1) 3/8 -16 spinlock nut (#12)
(Qty. 1) Drive link (#15)
9
19
(Qty. 2) Linkage adjustment pin (#13)
(Qty. 2) 1/4 in. - 20 spinlock nuts (#6)
(Qty. 1) Actuator crankarm (#19)
(Qty. 2) 1/4 in. E-Ring (#14)
8
14
13
7
6a. Assemble the shaft crankarms.
6
13
For dampers with 1/2 in. shafts:
Steps 6a b
for dampers with 1/2
in. shafts.
The damper shaft crankarms must be placed as mirror
images of each other, meaning the like sides face each
other. The bolts and nuts are to be positioned as in the
exploded view.
For dampers with 1 in. shafts:
The 1 in. crankarm, item 10, must be in the position
shown in the encircled exploded view shown above left.
Position the bolt and nut as shown in the same diagram.
6b. For dampers with 1/2 in. shafts:
Insert a linkage adjustment pin through both of the
crankarm slots. Position it 3 in. from the center of the
damper shaft. Secure it there with a 1/4-20 spinlock nut
(item 6).
3"
For dampers with 1 in. shafts:
Insert a linkage adjustment pin through the 1 in. crankarm
(item 10) slot. Position it 3 in. from the center of the
damper shaft. Secure it there with a 1/4-20 spinlock nut
(item 6).
6c. Attach the drive link to the damper shaft crankarms by
inserting the linkage adjustment pin through one of the
drive link’s holes and fastening it with an E-ring (item 14).
6d. Attach the drive link to the actuator crankarm with the
linkage adjustment pin, a spinlock nut and an E- ring
(item 14). Set the linkage adjustment pin 21/8 in. from the
actuator shaft center and secure it there with the spinlock
nut. Fasten the other end through the empty drive link hole
with the E-ring (item 14).
1
2 /8
"
Power Position
Return
Fail Position
Power
7. Note the damper shaft rotation for fail direction and orient
the linkage appropriately as shown in the linkage
illustration. The damper linkage is now in its fail position
Position the damper blades to their proper position (open
or closed). Tighten the bolts
Clockwise to Fail Position
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White
Violet
Orange
Black
120 v
280v
240v
8. Wire the actuator according to the
appropriate wiring illustration that
identifies the actuator’s electrical
connections. Wiring should be per an
approved project or job wiring diagram
and must comply with all applicable
electrical codes
Com.
Note: Tape or wire nut all unused leads.
Transformer
9. Apply power to the actuator.
T2
T2
The damper blades should fully open or
close and return to the fail position when
power is disconnected, if they do not,
adjustments can be made by resetting
the crankarm position on the damper or
actuator shaft, or by adjusting the 3 in.
dimension on the damper shaft crankarms.
Model M4182 Wiring Connections
Note: Model M8182 is a 24 Volt actuator
with no transformer. Connections must
be made directly to T1 and T2.
R
N.C.
Com.
N.C.
Yellow
Red
T1
W
T2
B
Control Device
L1 (Hot)
L2
Blue
Transformer
Auxiliary Switch Wiring Connections
(All colors are tracers on white wire)
Model M9185 Wiring Connections
Note: This is a modulating actuator that
requires a control signal to operate.
Electrical Ratings
Voltage Current Draw
Power consumption
(W)
(V@ 50/60 Hz)
(A)
.86
.25
.14
.13
Without Transformer
24
20
25
25
25
With Internal Transformer
120
208
240
Controller Type: Two wire, on-off switching action
Auxiliary Switch Ratings (Amperes)
120V
7.2
240V
3.6
Full Load
Locked Rotor
43.2
21.6
Ratings for 40 VA pilot duty, 120/240 VAC on opposite contact
Copyright © 2005 Greenheck Fan Corporation
454200 Honeywell M4182, M8182, M9185 IOM
Rev. 5 August 2005
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