Greenheck 331-4551, 332-4551 - Siemens 3 Actuator (454201) - Manual

Part No. Quantity Description
1 1 Actuator Siemens #3
2 1 Swivel (assembled to actuator)
3 1 Post (assembled to actuator)
4 1 Clevis (assembled to actuator)
5 2 3 /
8 in
.-24 Hex Nut (assembled to actuator)
6 1 1 / 2 in. Crankarm
7 1 5 /
16 in.
-18 x 1 1 /
2 in.
Bolt
8 1 5 /
16 in.
-18 Spinlock Nut
9 1 1 /
4 in.
x 1 /
2 in.
Clevis Pin
10 1 Hitchpin Cotter
These instructions apply to the external field installation of Siemens actuators on Greenheck models VCD Control Dampers
when they are duct mounted or sleeved.
This Siemens pneumatic actuator has an 8 square inch effective diaphragm area and a 2 3 /
4
in. stroke. It extends to its holding
position when air pressure is applied and spring returns to its fail position when the air supply is interrupted. This model has
a maximum air pressure of 25 psi.
Tools Required:
Wrenches:
(1) 3 /
8
, (2) 1 /
2
, and (1) 7 /
16
in.
Alt.
Alt.
Alt.
1
2
5
1.938
8
6
7
18
19
20
Cont
rol Shaf
t
To Damper
16
15
3
17
14
12
11
13
9
10
4
1.750
1 in. (25mm) Dia. Jackshaft Hardware
Replaces Item 6, 7, & 8
(supplied with damper)
Part No. Quantity Description
11
4 1 /
4
-20 x 1 /
2 in.
Bolt
12 4 1 / 4 -20 Spinlock Nut
13 1 Mounting Bracket
14 1 Ball Bearing
15 1 Stand Off Bracket
16 4 1 /
4
-20 x 1 /
2 in.
Self Threading Screw
17 2 #10 TEK Screw
18 1 3 / 8 -16 x 2 1 / 2 in. Carriage Bolt
19 1 1 in. Crankarm (Knurled)
20 1 3 /
8
-16 Spinlock Nut ZP
Part Number 454201
Siemens #3 Actuator
Model 331-4551 & 332-4551
UL Listed Pneumatic Actuator with Spring Return
INSTALLATIoN INSTRUcTIoNS
! !
cAUTIoN
Device Malfunction Hazard. Improper set screw tightening causes device malfunction. Tighten set screws with
proper torque to prevent damper shaft slippage.
! !
WARNING
Equipment Damage or Electrical Power Hazard. Line voltage can cause death or serious injury and short equipment
circuitry. Disconnect power supply before installation.