Trane Trane, VAV-SVN01E-EN manual Maintenance, Rotating Components, HazardousVoltage w/Capacitors

Maintenance

Periodic maintenance of theVariTrane product is minimal, but necessary for efficient operation. Routine mainte- nance consists of inspecting/replacing the air filters of the fan-powered terminals.

Motors

Both the PSC (permanent split capaci- tor) and the ECM (Electrically Commu- tated Motor) require no lubrication during its normal life of operation.

FanWheel:

Periodically, the fan wheel should be inspected for dirt or debris and cleaned as necessary.

Filter

The filter on fan-powered terminals will need to be inspected/replaced routinely depending on the environmental conditions of the plenum.

Water Coil

Water coils should be inspected and the fins should be cleaned periodically.

Water coils have been provided with an access panel as standard to assist with inspection and cleaning.

Fan Motor Replacement

WARNING

HazardousVoltage w/Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

WARNING

Rotating Components!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout proce- dures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Figure 27 – Standard Motor Removal Figure 28 – Low-Height Motor Removal

Standard height fan-powered series and parallel fan motors are replaceable through the filter opening and the standard sliding side access panel. To access the fan motor, the fan housing must be detached by removing the mounting bolts that hold the housing to the fan board. Removing the entire housing allows the fan motor, fan housing, and fan wheel to be re-aligned on a workbench or floor and prevent any possible fan wheel rubbing that may occur. Removing the housing will provide access to the motor shaft set screw that holds the fan wheel to the motor shaft.

The low-height fan assembly was designed with an inlet ring that assists with removal of the fan motor. To access the fan motor assembly, the bottom panel must be removed. The inlet ring is held in place by six bolts and three motor mount bolts. Remove these bolts and the motor and fan wheel will come out of the fan housing.

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