Johnson Controls HVWHP072B32S - Page 176

4-26
SM-18006
MAINTENANCE
TURN OFF all POWER supply switches.
(11) Whentheprocedureshavebeencompleted,performvacuumingagainfrom(E)lowpressureaccess
portandrechargetherefrigerant.Afterrecharging,openthestopvalves.
NOTES:
● Useacleancharginghose.
● Chargetherefrigerantoilinashorttime(withinapprox.20minutes).
Useacontainerwithasmallopeningsothattherefrigerantoildoesnotabsorbthemoistureinthe
atmosphere.
Tool AdjustableWrenchorRatchet
Accumulator (Example of Cutting)
Low Pressure
Access Port
Refrigerant Oil
(Approximately 700cc )
Accumulator (Cross Section)
(F) High Pressure Access Port
(B) Low Pressure Gas Stop Valve
(Only for Heat Recovery System)
(A) High/Low Pressure Gas Stop Valve
(C) Liquid Stop Valve
(E) Low Pressure Access Port
Accumulator
(D) Access Port for Collecting Refrigerant Oil