Greenheck M9185D Installation Manual
INSTALLATION INSTRUCTIONS
Honeywell Modutrol IV Series Actuators
UL Listed Electric Actuators with Two Position Control
These instructions apply to the external field installation of
Honeywell actuators on Greenheck model VCD Control Dampers
when they are duct mounted or sleeved.
Honeywell M9185D actuators is a modulating actuator that spring
returns to the fail position when power is interrupted.
Part #454200
Models M9185D
Tools Required:
Wrenches:
(1)3/8 in., (2)1/2, (1) 9/16 in. , (1)7/16, and (1) 5/16 in.
(1) Hammer
Note: These actuator models require field
calibration for the zero and span setting.
Part Number Quantity Description
1 1 Actuator
2 1 Mounting Bracket
3 1 Mounting Plate
4 4
5 4
6 10
7 2
8 2
9 2
10 1 1 in. Crankarm
11 1
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
3
/8 -16 x 21/2 in. Carriage Bolt
Part Number Quantity Description
12 1
13 2 Linkage Adjustment Pin
14 2
15 1 Drive Link
16 1 Stand Off Bracket
17 4 #14 - 3/4 in. TEK Screw
19 1 221455A Crankarm
20 4
3
/8 -16 Spinlock Nut
1
/4 in. E-Ring
1
/4 in. -20 x 1/2 in. Hex Bolt
Instructions:
14
15
19
6
13
14
13
7
8
9
11
10
12
A
A
These installation instructions assume the damper is already
mounted in a duct or sleeve with the damper shaft extending
beyond the sleeve or duct 6 inches.
1. Install the stand off bracket (item 16).
Dampers with a jackshaft
1a. Mount the stand off bracket onto the jackshaft bracket
with (4) 1/4-20 X 1/2 in. thread cutting screws (item 17).
Use the orientation shown on this page.
Note: The bracket must be perpendicular to the damper
on the duct or sleeve and the bracket's shaft hole must be
centered on the jackshaft.
Dampers without a jackshaft (Shaft Extension)
1b. Mount the stand off bracket (item 16) spanning across the
damper frame flanges. Use the orientation shown to the
right. Fasten to the damper frame with (4) #14 Tek screws,
supplied in the field. Be sure not to run the screws into the
damper linkage, which is between the flanges.
Note: The bracket must be perpendicular to the damper
on the duct or sleeve and the bracket's shaft hole must be
centered on the shaft extension.
2. Fasten the mounting plate (item 3) to the mounting bracket
(item 2) using (4) 1/4- 20 x 1/2 in. thread studs (item 4), and
(4) 1/4-20 spinlock nuts (item 6), through the matching four
hole pattern on the mounting bracket labeled “A” on the
illustration. Note that the mounting bracket has only one
pattern that will match the mounting plate pattern.
3. Mount the mounting bracket (item 2) to the stand off
bracket using (4)1/4 -20 x 1/2 in. bolts (item 21) and (4)1/4 20 Spinlock nuts (item 6) included with this kit. Use the
outer four holes of the mounting bracket for jackshafted
models and the inner four holes for directly driven models.
4. If the damper has a 1/2 in. dia. damper shaft, mount the
ball bearing (item 18), into the mounting bracket with two
#10 Tek screws (item 20). The Tek screws are required to
keep the thrust forces from pushing the bearing out of the
mounting bracket. If the damper shaft is 1 in. in diameter
then no ball bearing is required.
5. Mount the actuator to the mounting plate in the
corresponding holes using (3 )1/4-20 x 3/4 in. thread
cutting screws (item 5). Note that the actuator must be
mounted with the shaft in the horizontal position.
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)
(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)
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)
(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)
Orientation of Stand Off
Bracket for a jackshaft
driven damper
Steps 6a,b
for dampers with 1/2
in. shafts.
Orientation of Stand Off
Bracket for a directly driven
damper
Damper
Mounting Plate
Steps 6a,b for dampers
with 1 in. shafts
(substitute these parts in
place of 7, 8, 9, &13)
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