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Specifications subject to change without notice.
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R- 410A QUICK REFERENCE GUIDE
R- 410A refrigerant operates at 50% - 70% higher pressures than R- 22. Be sure that servicing equipment and
replacement components are designed to operate with R- 410A.
R- 410A refrigerant cylinders are rose colored.
Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
R- 410A systems should be charged with liquid refrigerant. Use a commercial type metering device in the
manifold hose.
Manifold sets should be 750 psig high- side and 200 psig low- side with 520 psig low- side retard.
Use hoses with 750 psig service pressure rating.
Leak detectors should be designed to detect HFC refrigerant.
R- 410A, as with other HFC refrigerants, is only compatible with POE oils.
Vacuum pumps will not remove moisture from oil.
Do not use liquid line filter- driers with rated working pressures less than 600 psig.
Do not install a suction line filter- drier in liquid line.
POE oils absorb moisture rapidly. Do not expose oil to atmosphere.
POE oils may cause damage to certain plastics and roofing materials.
Wrap all filter- driers and service valves with wet cloth when brazing.
A liquid line filter- drier is required on every unit.
DonotusewithanR-22TXV.
Never open system to atmosphere while it is under a vacuum.
When system must be opened for service, break vacuum with dry nitrogen and replace all filter- driers.
Do not vent R- 410A into the atmosphere.
Do not use capillary tube indoor coils.
Observe all W ARNINGS, CAUTIONS, NOTES, and bold text.
Copyright 2018 International Comfort Products
Lewisburg, TN 37091 USA