Components

 

ABSORPTION CHILLER

COMPONENT

FUNCTION

MAINTENANCE

ABSORBER CONTROL CENTER
  • Provides safety interlock and load control.
    		•
  • Sequence test all controls.
  • Clean controls, calibrate and adjust safety devices.
  • Check for air leaks and/or electrical connections.

    • PURGE UNIT (Purge motor, purge pump, purge solenoid valve, purge shut off valve)
  • Removes non-condensables from system.
    		•
  • Lubricate motor.
  • Change purge unit oil.
  • Check drive belt and adjust tension.

    • REFRIGERANT PUMP

    ABSORBER PUMP

    CONCENTRATOR PUMP
  • Circulates refrigerant in evaporator.
  • Circulates refrigerant in absorber.
  • Pumps solution to concentrator.
    		•
  • Perform vibration test.
  • Lubricate motor and pump bearings.
  • Inspect gaskets and seals for leakage and deterioration.
  • Clean and paint as required.
  • Clean pump motor cooling water strainer.

    • SOLUTION SERVICE VALVES
  • Provides access to system solution.
    		•
  • Add octyl alcohol as required.
  • Draw solution sample and test to manufacture specification.

    • EVAPORATOR
  • Provides for heat transfer between chilled water and refrigerant.
    		•
  • Inspect and clean water side as necessary.
  • Inspect connection for leaks.
  • Repair or tighten access plate as required.
  • Inspect nozzles.

    • ABSORBER
  • Allows refrigerant vapor to be drawn out of the evaporator.
    		•
  • Inspect and clean water side as necessary.
  • Inspect connections for leaks.
  • Repair or tighten access plate as required.

    • ECONOMIZER (VALVE)
  • Controls solution flow to concentrator.
    		•
  • Check valve operation.
  • Replace motor diaphragm.

    • ELECTRIC CONTROL PANEL
  • Provides internal control and safety for unit.
    		•
  • Check safety controls.
  • Clean, calibrate and adjust.
  • Inspect starters, replace worn contacts.
  • Check current draw with amprobe.
  • Perform megger test.

    • STEAM SUPPLY CONDENSATE TRAP RETURN
  • Provides measured steam for operation and returns condensate to boiler.
    		•
  • Check steam valve operation.
  • Clean strainer.
  • Replace diaphragm as required.
  • Repair or replace maintainable trap items.
  • Inspect connection.
  • Clean and paint as required.

    • GENERATOR
  • Adds heat in the form of steam or hot water to boil off the refrigerant from the absorbent to reconcentrate the solution.
    		•
  • Inspect and clean water side as necessary.
  • Inspect connections for leaks.
  • Repair or tighten access plate as required.

    • CONDENSER
  • Condenser water vapor produced in the generator by circulating water through the unit.
    		•
  • Inspect and clean water side as necessary.
  • Inspect connections for leaks.
  • Repair or tighten access plate as required.