Carrier PC211 specifications ISO Viscosity Grade

Oil Specification
If oil is to be added, it must meet the following Carrier specifications:
• Oil type for HCFC-22 Machines only...	Alkyl-benzene-based synthetic compressor oil
specifically formatted for use in HCFC-22 gear-driven machines
ISO Viscosity Grade	86

•Oil Type for units using R-134a............Inhibited polyolester-based synthetic compres- sor oil formatted for use with HFC, gear-driven, hermetic compressors.

ISO Viscosity Grade	68
The alkyl-benzene type oil (part number PP23BZ101) or the polyolester-based oil (P/N:
PP23BZ103) may be ordered from your local Carrier representative.

Oil Changes

Carrier recommends changing the oil after the first year of operation and every three years thereafter as a minimum in addition to a yearly oil analysis. However, if a continuous oil monitoring system is functioning and a yearly oil analysis is performed, time between oil changes can be extended.

To Change the Oil

1.Transfer the refrigerant into the condenser (for isolatable vessels) or a storage tank.

2.Mark the existing oil level.

3.Open the control and oil heater circuit breaker.