Classroom Unit Ventilators - Horizontal | General Maintenance

To access the unit for water balancing, motor access or other start-up and maintenance functions, use one of the following methods:

• Remove the entire front panel and put a blockoff over the air chamber in the front.

• Remove the return air grille by releasing the mounting screws.

• If there is no shelving or other obstructions, removing the end panel may allow more access.

Periodic Maintenance

• The following maintenance suggestions apply to all types of unit ventilators, chilled water, hot water, split systems and electric. Additional information for controls not supplied by The Trane Company should be obtained from the controls manufacturer.

• Split system unit ventilators include a condensing unit and the instructions provided with the condensing unit will apply to the entire refrigerant system.

The fan motor is an electronically commutated motor. To replace the fan motor, complete the following steps:

• Turn off power to the unit and remove the front cover.

• Complete steps for return air grille and filter removal.

• Complete steps for removal of drain pan if face and bypass option is installed.

• Complete steps for removal of fan board.

• Disconnect the motor ground wire

• Using a 7/16-in. Allen wrench, loosen the coupling on the fan shaft.

• Loosen the screw on the motor clamp until it allow the motor to be lifted off the base.

• Lift the motor and pull forward until fan shaft separates from the motor

• Attach new motor to fan shaft and reverse steps to complete installation.