Greenheck Fan 41, 81 specifications Replacement, Damper Application, Valve Application

Valve Application

1.Check entire motorized valve assembly to ensure that the mechanical connections (among motor, linkage, and valve) are proper and secure. Be certain that the linkage is adjusted according to the linkage instructions. Leave the linkage cover off until the checkout is completed.

2.Be certain the load does not exceed the motor rating. When using a Q5001 Linkage, no lubrication is required. Install the plastic washer on the motor shaft between the motor and cam to avoid motor binding and stalling. Check to ensure that the linkage spring compression is within the limits specified in the Q5001 Installation Instructions.

3.Energize the motor by setting the controller so that its contacts close.

NOTES:The motor should start and run smoothly, moving the valve stem to the opposite end of its stroke. If this is not the case:

—Ensure there is power to the motor.

—If there is not power, check the controller circuit for open or short circuits.

—If the trouble still cannot be found, measure the voltage at the source.

—Line voltage must be at least 85 percent of rated voltage stamped on motor nameplate.

4.De-energize motor by resetting the controller so its contacts open, or remove one wire from a controller terminal. Spring power should return the valve to normal position. If this does not happen, check the linkage for binding, or in the case of normally closed valves, check for fluid pressure in excess of the close-off rating.

5.Replace the linkage cover.

REPLACEMENT

Damper Application

1.Turn off power and remove wiring from the old motor.

2.Remove crank arm from the old motor shaft and remove the old motor.

3.Check to determine whether or not the mounting bracket is needed. If the linkage can reach the new motor lower shaft position and the crank arm has clearance for the necessary rotation, then the bracket is not required. Use the 220738A Adapter Bracket or the 221455A Crank Arm if the crank arm must rotate through the motor bottom plane.

4.If no bracket is required, mount the new motor directly to the equipment and refer as necessary to Installation, Settings and Adjustments, and Operation and Checkout sections of these instructions.

5.If the bracket is required, refer to the Adapter Bracket section and see Fig. 3 in addition to the Installation, Settings and Adjustments, and the Operation and Checkout sections of these instructions.

6.Use old mounting bolts to mount the new motor.

7.Mount the damper crank arm and linkage to the shaft of the new motor.

8.Use the Checkout procedures to test proper adjustment of the crank arm and linkage.

Valve Application

When replacing a motor in a valve application that has a Q100, Q601 or Q618 Linkage, it will be necessary to use the 220738A Adapter Bracket provided to raise the motor shaft to the same height as that of the old motor. In valve applications that have a Q5001 Linkage, the 220738A Adapter Bracket is unnecessary. Ensure motor stroke is 160° to operate Honeywell V5011 Two-way or V5013 Three-way Valves.

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