Greenheck Fan Modutrol IV Motors 81 - Manual (Page 6)

SERIES 41 AND 81 MODUTROL IV™ MOTORS
63-2187—3 6
Damper Linkages
A 220738A Adapter Bracket is packed with TRADELINE
motors. Use of this bracket is optional for many damper
applications. This bracket or a 221455A Crank Arm might be
needed in applications that require the crank arm to rotate
through the motor bottom plane.
NOTE: Replacement applications where the shaft height
changes require damper linkage adjustment.
The motor is supplied without a crank arm. The crank arm is
included in the Q605 Linkage or can be ordered separately
(see Accessories in the Specifications section).
For detailed instructions on specific linkage assembly, refer to
the instruction sheet packed with the linkage. In general,
however, check the following points of operation when
installing a motor and linkage:
— The motor must be permitted to complete its full stroke.
Damper or valve induced motor stall can damage the
motor. Adjust valve and louver-type damper linkages so
that the damper or valve moves through no more than the
maximum required distance when the motor moves
through its full stroke.
— Maximum damper opening should be no more than 60°.
Little additional airflow is provided beyond this point.
— Do not exceed the motor ratings in any installation.
— Do not turn the motor shaft manually or with a wrench.
This damages the motor.
Valve Linkages
Use the 220738A Adapter Bracket with the Q100 Linkage in
all valve applications. The 220738A Adapter Bracket is not
required with the Q5001 Valve Linkage (see Fig. 4).
Fig. 4. Mounting the motor on a Q5001 valve linkage.
Wiring
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect all power supplies before installation.
Motors with auxiliary switches can have more than
one disconnect.
IMPORTANT
All wiring must agree with applicable codes,
ordinances and regulations.
Make sure that the voltage and frequency stamped on the
motor correspond to the power supply characteristics.
Fig. 5 shows the motor terminals (quick-connects located on
top of the printed circuit board). Wiring compartment access is
gained by removing the four screws from the wiring box top
and lifting off the cover.
See Fig. 6 through 10 for typical system wiring. Fig. 12 shows
auxiliary switch connections.
Wiring Box
When used with liquid-tight conduit connectors, the wiring box
provides NEMA 3 weather protection for the motor. The box
also provides knockouts for wiring conduits and encloses
terminals. The wiring box is required for housing an internal
transformer or internal auxiliary switches.
Fig. 5. Terminals and adjustments.
1/4-20 UNC
1 in. LONG
MOUNTING
BOLTS
Q5001
VALVE
LINKAGE
M17092
MOTOR
WIRING
BOX
POWER
END OF
MOTOR
VALVE
RIGHT INNER
AUXILIARY
SWITCH
INNER AUXILIARY
SWITCH CAM (BLUE)
POWER
END
OUTER AUXILIARY
SWITCH CAM (RED)
LEFT OUTER
AUXILIARY
SWITCH
Note: Features available on some models only. M860
T2
T1
STROKE ADJUSTMENT
CAM (BROWN)