Hillphoenix Adaptapak ADP-M0000-L0032, Installation And Operation Manual

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AdaptaPAK® Maintenance and Troubleshooting
c. Verify that all motors are mounted securely.
d. Lubricate motors, if applicable. Do not lubricate permanently sealed, ball bearing motors.
4. Inspect electrical wiring and components
a. Verify that all electrical and ground connections are secure; tighten as required.
b. Check condition of compressor and heater contacts. Look for discoloration and pitting. Replace, as required.
c. Check operation and calibration of all timers, relays, pressure controls and safety controls.
d. Clean electrical cabinet. Look for signs of moisture, dirt, debris, insects and wildlife. Take corrective action as
required.
e. Verify operation of crankcase heater by measuring amp draw.
5. Check refrigeration cycle.
a. Check suction, discharge and net oil pressure readings. If abnormal, take appropriate action.
b. Check pressure drop across all filters and driers. Replace, as required.
c. Verify that superheat at the compressor conforms to specification (i.e., 30°F to 45°F).
d. Check pre ssure and safety control settings and verify proper operation.
Annually
Finally, once a year, perform the following checks:
1. In addition to quarterly and semi-annual maintenance checks, submit an oil sample for analysis.
a. Look for high concentrations of acid or moisture. Change oil and driers until test results read normal.
b. Investigate source of high metal concentrations, which normally are due to abnormal bearing wear. Look for
liquid refrigerant in the crankcase, low oil pressure or low superheat as a possible source.
2. Inspect suction accumulator (if equipped).
a. If the accumulator is insulated, remove insulation and inspect for leaks and corrosion.
b. Pay close attention to all copper to steel-brazed connections.
c. Wire brush all corroded areas and peeling paint.
d. Apply an anticorrosion primer and paint, as required.
Re-insulate, if applicable.