Puron Advance™ (R-454B) Refrigerant - Quick Reference Guide - Bryant Evolution Extreme 191VAN Installation Instructions Manual

191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions
Puron Advance™ (R-454B) Refrigerant - Quick Reference Guide
Be sure that servicing equipment and replacement components are designed to operate with R-454B refrigerant.
S
Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT 4BW400.
S
R-454B refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when
S
charging into suction line with compressor operating.
S Leak detectors should be designed to detect R-454B refrigerant.
S R-454B refrigerant is compatible with POE and PVE oils only.
S Vacuum pumps will not remove moisture from oil.
Do not use liquid -line filter driers with rated working pressures less than 600 psig.
S
Do not leave R-454B suction line filter driers in line longer than 72 hours.
S
S Do not install a suction -line filter drier in liquid line.
S POE and PVE oils absorb moisture rapidly. Do not expose oil to atmosphere.
POE and PVE oils may cause damage to certain plastics and roofing materials.
S
Wrap all filter driers and service valves with wet cloth when brazing.
S
A factory approved liquid -line filter drier is required on every unit.
S
S Do NOT use R -410A TXV. TXVs are not cross compatible between R-410A and R-454B.
Do NOT convert a coil with a piston or R-410A metering device. Coils must come from the factory with an R-454B TXV and an A2L
S
dissipation board already installed. Indoor unit is equipped with an R -410A TXV, it must be changed to a hard shutoff R-454B TXV.
S Never open system to atmosphere while it is under a vacuum.
When system must be opened for service, recover refrigerant, evacuate then break vacuum with an inert gas and replace filter driers. Evacuate
S
to 500 microns prior to recharging.
S Do not vent R-454B refrigerant into the atmosphere.
S Do not use capillary tube coils.
S Observe all warnings, cautions, and bold text.
All indoor coils must be installed with a hard shutoff R-454B TXV metering device in long line applications.
S
My Learning Center is your central location for professional residential HVAC training resources that help strengthen careers and businesses. We
believe in providing high quality learning experiences both online and in the classroom.
Access My Learning Center with your HVACpartners credentials at www.mlctraining.com. Please contact us at
questions.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Bryant is under license.
Other trademarks and trade names are those of their respective owners
© 2024 Carrier. All rights reserved.
A Proud Member of the Carrier Family
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Training
Edition Date: 08/24
22
mylearning@carrier.com with
Catalog No:II191VAN-01
Replaces:New