Outdoor Unit Single-Zone Ductless Heat Pump Puron Advance R-454B 1 Ton 208/230 V 1-Phase 60 Hz 37MARAQ12AA3

The Outdoor Unit Single-Zone Ductless Heat Pump Puron Advance R-454B 1 Ton 208/230 V 1-Phase 60 Hz (37MARAQ12AA3) is a compact inverter outdoor condenser from Bryant designed to provide efficient, year-round comfort for a single ductless indoor unit using Bryant Puron Advance™ (R-454B) refrigerant, an environmentally improved formulation with significantly lower global warming potential than legacy refrigerants. This 1 Ton capacity unit uses inverter compressor modulation to match output with demand, enhancing part-load efficiency and delivering quiet operation and reliable comfort in moderate climates. It operates on 208/230 V single-phase, 60 Hz power and is intended for single-zone residential installations paired with a properly sized indoor unit. For proper job fit, technicians must confirm that the indoor air handler capacity matches the outdoor 1 Ton rating, verify correct refrigerant line size and allowable run lengths per Bryant installation standards, and ensure the electrical supply meets the unit’s MCA and MOCP requirements with appropriate disconnect and overcurrent protection. Correct pairing supports stable performance, optimal seasonal efficiency, and Bryant warranty compliance.