Components

HEAT PUMP

COMPONENT

FUNCTION

MAINTENANCE

FILTER
  • Cleans air entering the unit.
    		•
  • Replace as required.

    • EVAPORATOR COIL
  • Provides heating/cooling source for space being served.
    		•
  • Measure inlet and outlet temperature for efficiency.
  • Inspect and clean.
  • Straighten fins.
  • Check for damage or leaks.
  • Inspect and clean drain pan and drain line.

    • CONDENSER COIL
  • Dissipitates or absorbs heat to/from outside air.
    		•
  • Inspect and clean.
  • Straighten fins.
  • Check for damage or leaks.

    • COMPRESSOR
  • Prepares refrigerant to be condensed and reused at the evaporator.
    		•
  • Check refrigerant charge.
  • Check for refrigerant or oil leak.
  • Check for crankcase heater operation.
  • Check compressor motor current.

    • SUPPLY FAN
  • Circulates conditioned air to space being served.
    		•
  • Inspect and clean.
  • Check for proper rotation and clearance.
  • Check security to motor shaft.

    • SUPPLY FAN MOTOR
  • Provides energy source for supply fan operation.
    		•
  • Inspect and clean.
  • Lubricate.
  • Examine motor mount resiliency.

    • MOTOR STARTER
  • Controls on/off operation of motor.
    		•
  • Inspect starter coils and contacts.
  • Check current and heater size.

    • CONDENSER FAN
  • Circulates air through outside coil.
    		•
  • Inspect and clean.
  • Check for proper rotation and clearance.
  • Check security to motor shaft.

    • CONDENSER FAN MOTOR
  • Provides energy source for fan operation.
    		•
  • Inspect and clean.
  • Lubricate.
  • Examine motor mount resiliency.

    • CONTROL PANEL
  • Provides selection and control for unit operation.
    		•
  • Test for proper operation.
  • Tighten all electrical connections.
  • Sequence test all controls.

    • THERMAL EXPANSION VALVE
  • Provides refrigerant flow control.
    		•
  • Check for proper operation.
  • Adjust as required.

    • TRANSFER VALVE
  • Switches heat pump operation and flow of refrigerant between heating and cooling.
    		•
  • Check for proper operation.
  • Adjust as required.