Trane HVAC Rooftop Unit WSJ150A4S00**

Turn the unit OFF and lock the main power disconnect switch open

Disconnect all electric power, including remote disconnects

Follow proper lockout/tagout procedures

Verify that no power is present with a voltmeter

Were the filters cleaned or replaced?

Check that all parts are in place

Inspect filters for dirt and debris accumulation

Is the airflow through the unit adequate?

Perform periodic checks on the smoke detector

Refer to the smoke detector Installation and Maintenance Instructions for detailed procedures

Ensure all tools and materials are removed from the site

Air Filter Inspection and Maintenance

Check supply fan motor bearings

Repair or replace the motor as necessary

Electrical Components Inspection

Inspect control panels and heat section control box

Electric Heat System Verification

Drain Pans and Condensate Piping

Check the unit’s drain pans for blockages.

Check the condensate piping for blockages.

Inspect the evaporator coils for dirt and bent fins.

Inspect the condenser coils for dirt and bent fins.

Clean the coils if necessary, following the 'Coil Cleaning' instructions.

Condenser Fans and Motor Bearings

Acknowledge understanding of safety precautions regarding hazardous chemicals

Remove shipping screws (ones without washers)

Lift hail guards up so screws with washers go to top of keyhole

Remove hailguard by sliding washer head screw through keyhole

Remove enough panels from the unit to gain access to the coil

Remove the access panel from the roof located next to the rear condenser fan