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BEFORE INSTALLATION
The MP909E UL Listed Pneumatic Damper Actuator is used
for control of Leakage Rated (Smoke) Dampers, classified
under Underwriters Laboratories Standard 555S, for use in
smoke control systems. The MP909 is a piston-type, rolling-
diaphragm operated actuator and can be mounted in any
position and installed either externally or internally.
The UL listing of the actuator and the damper classification
apply only when Listed Honeywell Actuators are installed on
Honeywell D640SD, D641SD, D644SD, or D645SD Series
Dampers as specified in the installation instructions shipped
with the devices.
All installations must also comply with the requirements of
NFPA 90A, National Fire Protection Standard for the
Installation of Air Conditioning Systems.
Table 1 lists the only MP909 Actuators approved for use with
UL Classified Leakage Rated (Smoke) Dampers.
Table 1. Damper Actuators for Leakage Rated Dampers.
Actuator
Spring Range
Model
psi (kPa)
MP909E1422
5-10 (34-69)
MP909E1414
5-10 (34-69)
MP909E1034
5-10 (34-69)
MP909E1364
5-10 (34-69)
Mainline pressure limits:
— 15 psi minimum
— 25 psi maximum
Tools needed:
1. 7/16-inch box end wrench
2. 1/8-inch Allen wrench
3. Squeeze bulb
Copyright © 1996 Honeywell Inc. • All Rights Reserved
UL Listed Damper Actuator
Mounting
Bracket
Internal/
Trunnion
Normally
Open
Internal/
Trunnion
Normally
Closed
External
90° Fixed
External
Trunnion
INSTALLATION INSTRUCTIONS
INSTALLATION
External Mounting
For external mounting dimensions, see Figure 1.
Check faceplate position (Fig. 2). Adjust faceplate
position if necessary.
Determine the damper drive axle direction of rotation to
the normal position (position with 0 psi applied to
actuator).
Rotate damper drive axle to normal position.
Locate proper shaft hole (Fig. 3) over damper shaft.
Arrow on bracket surrounding hole should match
rotation determined in Step 3.
Position mounting bracket.
Secure mounting bracket. Use four of the 10 holes
available in bracket and drill screws provided.
To provide close-off force, use a squeeze bulb and
stroke the actuator:
a.
For normally open dampers, fully extend actuator
shaft then retract 1/2-inch (13 mm).
b.
For normally closed dampers, extend actuator
shaft 1/2-inch (13 mm).
CAUTION
See Figure 4 for proper tightening of crankarm bolts.
Go to PIPING section.
Internal Mounting
Normally Closed
For normally closed internal mounting dimensions, see
Figure 5.
Check faceplate position (Fig. 6). Adjust faceplate
position if necessary.
Use a 1/8-inch Allen wrench to loosen mounting set
screws on damper mounting clamp (Fig. 6) one turn.
Remove and discard shipping stop.
Locate factory-installed drive ear on damper. (Mounted
per Damper Ordering Instructions.) Actuators must be
mounted only in this (these) position(s)
11-95 UL
MP909E
95-6076
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Summary of Contents for Honeywell MP909E
- Page 1 UL Listed Damper Actuator INSTALLATION INSTRUCTIONS BEFORE INSTALLATION INSTALLATION The MP909E UL Listed Pneumatic Damper Actuator is used External Mounting for control of Leakage Rated (Smoke) Dampers, classified under Underwriters Laboratories Standard 555S, for use in For external mounting dimensions, see Figure 1.
- Page 2 MP909E UL LISTED DAMPER ACTUATOR Remove mounting screw from damper end of truss link. Insert clevis pin in drive ear hole marked P and the Loosen screw between base and truss link. Remove pushrod hole nearest the actuator. clevis pin from damper end of actuator pushrod.
- Page 3 MP909E UL LISTED DAMPER ACTUATOR CRANKARM BOLTS 1. BOLTS ARE TIGHTENED TO MORE THAN 90 LB-IN BUT LESS THAN 200 LB-IN. 2. TIGHTEN BOTH BOLTS (WITH 7/16 BOX END WRENCH IF AVAILABLE). 3. TIGHTEN EACH BOLT AGAIN TO THE REQUIRED TORQUE.
-
Page 4: Normally Open
MP909E UL LISTED DAMPER ACTUATOR Locate factory installed drive ear on damper. (Mounted Normally Open per Damper Ordering Instructions.) Actuators must be mounted only in this (these) position(s). For internal mounting dimensions, see Figure 7. Loosen truss link to actuator base mounting screw. -
Page 5: Multiple Actuators
Fig. 11. Routing Copper Tubing Near Trunnion Pivot. Multiple Actuators Multiple actuators must be piped so the Smoke Control MP909E System operates all sections of multisection dampers simultaneously. Pipe multiple MP909E actuators in parallel (Fig. 12). MP909E MP909E TO SMOKE CONTROL C1468 Fig. - Page 6 MP909E UL LISTED DAMPER ACTUATOR Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc. Honeywell Limited-Honeywell Limitée Honeywell Plaza 155 Gordon Baker Road P.O. Box 524 North York, Ontario Minneapolis, MN 55408-0524 M2H 2C9...