Johnson Controls YVAHP0721CW Series, Service Manual

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4-20
SM-16007
MAINTENANCE
(10) Take out the remaining refrigerant oil in the compressor from the discharge pipe, and measure the
oil quantity. This procedure should be performed for the constant speed compressor or the inverter
compressor replacement.
NOTES:
1. Additional refrigerant oil charge is required if:
remaining refrigerant oil quantity in the old compressor is more than the pre-charged refrigerant oil
in the new compressor
2. No additional refrigerant oil charge is required if:
remaining refrigerant oil quantity in the old compressor is less than the pre-charged refrigerant oil in
the new compressor
3. The recharged quantity of the refrigerant oil to the cycle is calculated as follows:
(Remaining quantity in the old comp Collected quantity in Section 4.1.12 (8)
+ 0.05 gal. (200cc)*) - (Initial charged quantity in the compressor for each model)
Compressor Initial Charged Refrigerant Oil
)RU,QYHUWHU(.'+' 0.29 gal. (1100cc)
)RU&RQVWDQW6SHHG(.'+ 0.13 gal. (500cc)
* 0.05 gal. (200cc): This value is considered not to be removed from the chamber.
4. If the refrigerant oil is contaminated, exchange all with new refrigerant oil.
TURN OFF all power source switches.
Tool Oil Pan, Measuring Cup
Refrigerant Oil
Discharge Piping
Oil Pan
Measuring Cup