Honeywell M847 Catalog Page

Kit Mounted Motors

M847 Two-Position Draft Damper Actuator

Two-Position Draft Damper Actuators. Use with two-wire 24V
room thermostats or other low voltage controllers to operate the
draft damper on solid fuel furnaces or boilers and other similar
light duty applications.

• Low voltage, spring-return damper actuator

• Equipped with mounting bracket for wall, duct or direct appliance
mounting to control draft damper through an actuator arm or
chain linkage arrangement

• Actuator wheel rotates in a clockwise direction
(when facing the wheel) when energized

Dimensions, Approximate: 3 1/2 in. high x 2 5/8 in. wide x 3 5/16 in. deep

(89 mm high x 66 mm wide x 84 mm deep)

Fail Safe Mode: Spring Return
Control Signal: Two position, SPST
External Auxiliary Switches Available: No
Frequency: 60 Hz
Mounting: Foot mounted. Direct Coupled

Torque Rating

Product Number

M847A1072/U 1.9 lb-in. 0.21 Nm 24 Vac 20 sec 3.8 in. linkage arm

M847A1080/U 1.9 lb-in. 0.21 Nm 24 Vac 20 sec 38 in. linkage chain

Voltage Run Time (Maximum (seconds)) Includes(lb-in.) (Nm)

Motor Shafts: 1
Shaft Shape: Round
Angle of Rotation (Stroke Max (deg)): 45
Operating Temperature Range: 40 F to 125 F (5 C to 50 C)
Operating Humidity Range (% RH): 5 to 95% RH
Weight: 1.75 bs

Commercial

Replacement Parts and Accessories for Kit Mounted Motors

Product
Number Description Used With

121825AA/U Auxiliary crank arm assembly Q298; M835

126809/0021/U M836 Mounting Bracket M836

126816/0021/U Clamp for M436 M436

128336/0021/U Mounting Bracket for M436/M836, Increases motor height 0.5 inches M436, M836

16254AC Motor mounting bracket for M436/M836 M436, M836

198545/U Motor mounting bracket for M436/M836 M436, M836

198545

4074BRU/U Bag Assembly Extension adapter and screws for mounting

Q607 Auxiliary switch to M436A Damper Motor

4074ELR/U Crank arm, heavy duty —

4074ELY/U Crank arm, infinitely adjustable —

Q607; M436A

4074BRU

Components

M11526

M11524

70-6910 439