User Guide

SERIES 41 AND 81 MODUTROL IV™ MOTORS
63-2627 6
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 comply 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 junction box top
and lifting off the cover.
See Fig. 6 through 10 for typical system wiring. Fig. 12 shows
auxiliary switch connections.
Junction Box
When used with liquid-tight conduit connectors, the junction
box provides NEMA 3 weather protection for the motor. The
box also provides knockouts for wiring conduits and encloses
terminals. The junction box is required for housing an internal
transformer or internal auxiliary switches.
Fig. 5. Terminals and adjustments.
Fig. 6. Typical connections for Series 41 Motors.
Fig. 7. Typical connections for Series 81 Motors.
Fig. 8. Power connections for Series 41 Line Voltage
Motors controlling two-position outside air dampers.
Fig. 9. Power connections for Low Voltage Motors
controlling two-position outside air dampers.
Fig. 10. Wiring connections for Series 81 Motors
controlling two-position pre-heat coil valves.
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.
M18995
T2
T1
MOTOR
1
1
M806
A
THERMOSTAT LIMIT CONTROL
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
MOTOR
1
M807A
THERMOSTAT LIMIT CONTROL
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
MOTOR
1
M808A
MOTOR
STARTER
BLOWER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
24V
MOTOR
1
M809A
TRANSFORMER
MOTOR
STARTER
BLOWER
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
24V
MOTOR
1
M809A
TRANSFORMER
MOTOR
STARTER
BLOWER
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1