Wiring, Damper Linkages, Valve Linkages

SERIES 41 AND 81 MODUTROL IV™ MOTORS

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).

	WIRING
	BOX
POWER
END OF	MOTOR
END OF
MOTOR

Q5001

VALVE

LINKAGE

1/4-20 UNC 1 in. LONG MOUNTING

BOLTS

VALVE

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.

STROKE ADJUSTMENT

CAM (BROWN)

RIGHT INNER

AUXILIARY

SWITCH

INNER AUXILIARY

SWITCH CAM (BLUE)

POWER

END

OUTER AUXILIARY

SWITCH CAM (RED)

LEFT OUTER

T1AUXILIARY

SWITCH

Note: Features available on some models only.

M860

Fig. 5. Terminals and adjustments.

M17092

Fig. 4. Mounting the motor on a Q5001 valve linkage.

63-2187—3

41, 81 specifications

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