Product Overview

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1. Check the actuator by applying the proper supply voltage.
2. The motor should run when power is applied. If it does not run, the actuator is inoperative and should be replaced.
3. While the motor is running, the actuator should extend. If it does not extend, check the mechanical linkage for any damage
or misadjustment which could prevent the actuator from extending. If the mechanical linkage is inoperative, adjust the linkage
or replace the damaged components, as applicable. If the mechanical linkage moves correctly and freely, the problem lies
in the actuator and it must be replaced.
4. If applying power directly to the actuator results in correct operation of the actuator, the actuator and linkage are functional,
and the problem lies in the wiring or thermostat. Repair or replace the wiring or thermostat, as applicable.
FIELD REPAIR
None. Replace an inoperative actuator with a functional unit.
DIMENSIONAL DATA
Actuator
(4) 1/4"
(6 mm)
2"
(50 mm)
5/16"
(8 mm)
4-5/8"
(117 mm)
5-3/4"
(146 mm)
8"
(203 mm)
3-1/4"
(83 mm)
4-1/4"
(108 mm)
4-1/4"
(110 mm)
5-1/2"
(140 mm)
4-3/4"
(120 mm)
Figure-18 Damper Linkage Assembly Dimensions.
3-1/4" Dia.
(83 mm)
6-3/4"
(171 mm)
2-9/32"
(58 mm)
3-23/32"
(94 mm)
1-3/8"
(35 mm)
Figure-19 Actuator Dimensions.