Honeywell Honeywell Automobile Parts M847D User's Manual

Honeywell Automobile Parts User's Manual - Honeywell Automobile Parts M847D.
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INSTALLATION INSTRUCTIONS

Put Bar Code Here

95C-10905-02

Direct Drive Damper Actuator 

M847D

APPLICATION

The M847D is a two position, 24 Vac spring return damper 

actuator designed to operate directly driven zone dampers, 

used to control air flow in ducts. The synchronous motor 

actuator can be driven open (or closed) using any 24 volt 

rated two position switch - e.g. a wall switch or a thermostat 

subbase switch.

The M847D replaces the RDMH and RDMZ damper actuators 

for use on Trol-A-Temp® ARD and ZD dampers.

SPECIFICATIONS

Electrical Rating: 24 Vac 60 Hz 0.32 Amp., 8 VA

Electrical Connection: 1/2” conduit

Nominal Angular Rotation: 90° (max. 105°)

Torque: Min. 423 mNm* (60 in. oz) output torque available 

when motor is energized and device is at the spring 

returned initial start position.

Nominal Motor Timing: ( @ 25° C ambient)

Energized at rated load - 30 seconds.

De-energized (spring return) - 10 seconds.

Ambient Temperature Rating: 5 to 60° C (+40 to 140° F)

Finish: zinc plated steel, anodized aluminium

Direction of Shaft Rotation: clockwise, when energized and 

viewed from the base or shaft end.

Mounting Means: direct connection to damper shaft.

Mounting Position: Multi-poise.

Dimensions: See Figure 1.

*mNm = milli newton meter.

 

Table 1. Nominal Device Dimension

A

B

C

D

E

F

mm

60

84.5

88

8.2

31.5

19.3

in

2-3/8

3-3/8

3-1/2

5/16

1-1/4

3/4

G

H

J

K

L

M

mm

15.8

58.6

29.3

33.5

6.4

40.4

in

5/8

2-5/16

1-3/16

1-5/16

1/4

1-9/16

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