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Run: Commercial Heat Pump Annual Service Report

Annual service report for commercial heat pumps that records safety checks, airflow, refrigerant performance, and final operating verification in one inspect...

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Equipment Identification and Service Details

Record equipment tag number, location, manufacturer, model, and serial number.
Document the date/time of service and the technician performing the inspection.
Note current operating mode, outdoor ambient temperature, and indoor return air conditions if available.
Verify all access panels, guards, and fasteners are reinstalled and secured.

Safety, Electrical, and Work Controls

Confirm energy isolation was performed in accordance with OSHA 1910.147 before opening electrical or mechanical compartments.
Inspect disconnect, contactor area, terminal connections, and visible wiring for overheating, loose conductors, or damage.
Select PPE used during service work.
Verify clear access around the unit, no trip hazards, and safe footing for service work.
Confirm equipment warning labels, electrical hazard markings, and service instructions are visible and legible.

Airflow, Filters, and Coils

Inspect filters for loading, damage, and correct orientation; replace if required.
Verify evaporator and condenser coils are free of excessive dirt, debris, and blockage.
Record measured airflow if available and compare to equipment specifications.
Inspect blower wheel, motor mounts, and belts for wear, contamination, or abnormal condition.
Verify drain line is open, pan is clean, and no evidence of overflow or standing water is present.

Refrigeration Circuit and Heat Pump Operation

Verify the reversing valve shifts properly between heating and cooling modes without abnormal noise, delay, or leakage.
Confirm defrost operation is functional and terminates normally based on control logic and observed system response.
Confirm supplemental electric or auxiliary heat is locked out when outdoor conditions and control settings require it.
Record measured subcooling and compare to manufacturer target for the operating condition.
Document suction pressure, discharge pressure, and any notable instability in readings.
Inspect for oil staining, vibration, abnormal noise, insulation damage, or signs of leakage.

Controls, Performance, and Final Verification

Record discharge air temperature at the supply outlet during stable operation.
Record return air versus supply air temperature difference during steady operation.
Verify thermostat calls, staging, mode change, and control response are correct.
List all deficiencies, non-conformances, repairs completed, and follow-up work required.
Signature of the technician or inspector completing the annual service report.

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