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10
PURONR(R--410A) REFRIGERANT QUICK REFERENCE GUIDE
SPuron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacement
components are designed to operate with Puron refrigerant
SPuron refrigerant cylinders are rose colored.
SRecovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
SPuron refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose
when charging into suction line with compressor operating
SManifold sets should be 700 psig high side and 180 psig low side with 550 psig low--side retard.
SUse hoses with 700 psig service pressure rating.
SLeak detectors should be designed to detect HFC refrigerant.
SPuron refrigerant, as with other HFCs, is only compatible with POE oils.
SVacuum pumps will not remove moisture from oil.
SDo not use liquid--line filter driers with rated working pressures less than 600 psig.
SDo not leave Puron suction line filter driers in line longer than 72 hours.
SDo not install a suction--line filter drier in liquid line.
SPOE oils absorb moisture rapidly. Do not expose oil to atmosphere.
SPOE oils may cause damage to certain plastics and roofing materials.
SWrap all filter driers and service valves with wet cloth when brazing.
SA factory approved liquid--line filter drier is required on every unit.
SDo NOT use an R--22 TXV.
SNever open system to atmosphere while it is under a vacuum.
SWhen system must be opened for service, recover refrigerant, evacuate then break vacuum with dry nitrogen and replace filter driers.
Evacuate to 500 microns prior to recharging.
SDo not vent Puron refrigerant into the atmosphere.
SDo not use capillary tube coils.
SObserve all warnings,cautions,andbold text.
Copyright 2018 Carrier Corp. S7310 W. Morris St. SIndianapolis, IN 46231 Edition Date: 01/18
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
C a t a l o g N o : 2 4 A C B --- C C --- P B --- 7 S I
R e p l a c e s : 2 4 A C B --- C --- 6 S I