Ingersoll Rand Air Conditioner TTA251D4DAB00AR

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 a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

Inspect the condenser coils for dirt and debris.

If the coils appear dirty, clean them.

Check the suction pressure with the unit operating in cooling mode.

Ensure the unit is powered off before starting the cleaning process.

Verify that the cleaning area is clear of any obstructions.

Use pressurized water or air with a non-pinpoint nozzle.

Ensure the pressure does not exceed 600 psi.

Maintain an ECU of at least 180.

Aim the pressure washer perpendicular to the face of the coil.

Maintain an optimum clearance of 1"–3" between the sprayer nozzle and the microchannel coil.

Perform all of the monthly maintenance inspections

Check unit superheat and record the reading in the Maintenance Log

Remove any accumulation of dust and/or dirt from the unit casing

Remove corrosion from any surface and repaint

Check the gasket around the control panel door to ensure it fits correctly and is in good condition to prevent water leakage