Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual page 133

Click here for Table 5A — HCFC-22 Pressure — Temperature (F)
Click here for Table 5B — HCFC-22 Pressure — Temperature (C)
Click here for Table 5C — HFC-134a Pressure — Temperature (F)
Click here for Table 5D — HFC-134a Pressure — Temperature (C)
Machine Dehydration
Dehydration is recommended if the machine has been open for a considerable period of
time, if the machine is known to contain moisture, or if there has been a complete loss of
machine holding charge or refrigerant pressure.