Submittal Sheet

DAMPER MOTORS
3 63-2556—01
Table 1. M7215 Accessories.
Fig. 2. Limits of crank arm rotation.
INSTALLATION
When Installing this Product...
1. Read instructions carefully. Failure to follow them could
damage the product or cause a hazardous condition.
2. Check ratings and description given in the specifications
to make sure the product is suitable for your application.
3. Installer must be a trained, experienced service technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
CAUTION
Personal Injury Hazard.
Spring-return assembly can release.
Leave end covers attached to the motor.
Location and Mounting
Locate motor as close as possible to the equipment to be
controlled. Refer to Fig. 1 for mounting dimensions.
1. Mount motor with the shaft horizontal to ensure
maximum life.
NOTE: NOTE:Operation in other positions is possible
when required by the application.
2. Remove crank arm (secured with two screws) from the
motor hub.
IMPORTANT
Position crank arm on hub so it does not strike motor
mounting surface during any portion of full stroke.
See Fig. 2.
3. Reposition the crank arm to accommodate specific
damper requirements.
NOTE: NOTE:Crank arm position is adjustable in eight
degree increments.
4. Reconnect crank arm to the motor hub.
7640QF Terminal Enclosure—provides wiring enclosure for
electrical terminal connections. Enclosure can be used with or
without 40784EHB Screw Terminal Adapter. Bag assembly
includes: terminal housing, cover plate and mounting screws.
4074EGR Crank Arm Assembly.
Q298B Linkage Hardware—enables linking the motor to an
additional damper. Consists of two crank arm assemblies, two ball
joint assemblies, and variable length push rods (in 10, 16, or 24
inch lengths)
4074EKV Auxiliary Switch—provides switching capability for
controlling auxiliary equipment. The switch acts as a function of the
motor shaft position.
M3855
M3856
M17364
M3852
1
1
CRANK ARM FIELD ADJUSTABLE IN 7.5 DEGREE INCREMENTS.
MOTOR MOUNTING SURFACE
M3850
MAXIMUM
OPEN
POSITION
MAXIMUM
CLOSED
POSITION