Honeywell MP918A, MP918B Catalog Page

Pneumatic Damper Actuators

18-1/4 (465) MP918B

6-7/8 (175)

4 (102)

MIN.

M27099

20-1/2 (520) MP918A

14004062-001

1-7/16

(36)

M27100

8-1/2 (215)

MP918B

10-7/8

(275)

MP918A

3/8 (10) CLEARANCE

18-3/4 (475) MP918B

21 (535) MP918A

14004062-002

M27101

8 (205)

MP918B

10-3/8

(265)

MP918A

18-3/4 (475) MP918B

21 (535) MP918A

14004062-003

3-3/8

(86)

REF.

MP918A,B Pneumatic Damper Actuators

Used for proportional control of medium- to large-size dampers in HVAC systems. The MP918A,B are rolling diaphragm, piston-type actuators. The MP918A has a positive positioner. Replacement devices are available for Johnson, Powers, Robertshaw, BarberColman, and older Honeywell actuator models.

• Rolling diaphragm operated.

• Low friction shaft bearing.

• Close tolerance on operating range and stroke.

• Versatile mounting and connecting hardware.

• Non-overlapping spring ranges for sequencing.

• Reliable-long life.

Dimensions in inches (millimeters) Actuator with External Trunnion Mounting Bracket

Actuator with Internal N.C. Trunnion Mounting Bracket

Actuator with Internal N.O. Trunnion Mounting Bracket

Actuator Type: Damper Actuator Force: High Fail Safe Mode: Spring Return Stroke: 3 1/2 in. (90 mm) Diaphragm Effective Area: 23.8 sq in. (154 sq cm) Humidity Range: 5 to 95% RH

Approvals: Underwriters Laboratories, Inc: Components Recognized: Report

R18118

Accessories:

CCT2718-Threaded rod for shaft extension CCT2725-Rod coupling for shaft extension 14004062-001-External Trunnion Mounting Bracket 14004062-002-Internal N.C. Trunnion Mounting Bracket 14004062-003-Internal N.O. Trunnion Mounting Bracket 14004106-001-Actuator pushrod for conversion of internal N.C. to

external

14004107-001-Crankarm Assembly for conversion from internal N.C. to

external Trunnion mounting

14004210-001-Feedback Spring Kit includes orange spring (3 psi

[21kPa]), yellow spring (5 psi [34 kPa]), and blue spring (10 psi [69 kPa]).

14004236-001-Coupler, actuator shaft to 5/16 in, 8 mm, pushrod 14004241-002-Hitch Pin (Six Sets) 14004242-001-MP918 Top Mount Operator Assembly 14004667-001-Offset Crank arm assembly with 2 screws (304725-062),

nuts (14004102-001), crank arm (14004655-001) for 1/2 in. Drive Axle

Replacement Parts:

14004264-001-MP918 Repair kit including Positive Positioner, bracket

assembly and fittings

14004264-002-MP918 Positive Positioner Retrofit Kit - includes 10 psi

feedback spring

Pneumatic

Controls

70-6910 701

Pneumatic Damper Actuators

Temperature Range

Product Number

MP918A1024/U -20 F to

MP918A1057/U -20 F to

MP918A1081/U -20 F to

MP918B1006/U -40 F to

MP918B1014/U -40 F to

MP918B1022/U -40 F to

MP918B1030/U -40 F to

MP918B1048/U -40 F to

MP918B1063/U -40 F to

MP918B1071/U -40 F to

MP918B1089/U -40 F to

MP918B1097/U -40 F to

MP918B1105/U -40 F to

MP918B1113/U -40 F to

MP918B1196/U -40 F to

+158 F

-29 C to +70 C

-40 C to +70 C

Maximum Operating Pressure

Air Connections

25 psi 172 kPa 5/32 in. push-on barb

29 psi 200 kPa Barbed fitting for 1/4

(Pilot), 1/4 in. pushon barb (main.)

in. O.D. plastic tubing

Spring Range

Includes(F) (C) (psi) (kPa) (psi) (kPa)

Positive positioner 10 psi span (5 psi spring included)

3 psi to 13 psi 20 kPa to 90 kPa 14004062-001 - External Trunnion

3 psi to 13 psi 20 kPa to 90 kPa 14004062-001 - Internal N.C.

3 psi to 13 psi 20 kPa to 90 kPa 14004062-003 Internal N.O.

3 psi to 13 psi 20 kPa to 90 kPa Actuator only. No Mounting

5 psi to 10 psi 34 kPa to 69 kPa 14004062-001 - External Trunnion

3 psi to 7 psi 20 kPa to 48 kPa 14004062-001 - External Trunnion

3 psi to 7 psi 20 kPa to 48 kPa 14004062-002 Internal N.C.

8 psi to 13 psi 55 kPa to 90 kPa 14004062-001 - External Trunnion

8 psi to 13 psi 55 kPa to 90 kPa 14004062-002 Internal N.C.

8 psi to 13 psi 55 kPa to 90 kPa 14004062-003 Internal N.O.

8 psi to 13 psi 55 kPa to 90 kPa Actuator only. No Mounting

8 psi to 13 psi 55 kPa to 90 kPa 14004062-001 - External Trunnion

Positive positioner 69 kPa span (34 kPa spring included)

14004062-001 - External Trunnion Mounting Bracket with crankarm assembly. Positive Positioner

14004062-002 - Internal N.C. Trunnion Mounting Bracket with pushrod assembly. Positive Positioner

14004062-003 - Internal N.O. Trunnion Mounting Bracket with pushrod assembly. Positive Positioner

Mounting Bracket with crankarm assembly

Trunnion Mounting Bracket with pushrod assembly

Bracket

Mounting Bracket with crankarm assembly

Trunnion Mounting Bracket with pushrod assembly

Mounting Bracket with crankarm assembly

Trunnion Mounting Bracket with pushrod assembly

Bracket

Mounting Bracket with crankarm assembly

702 customer.honeywell.com 70-6910