Heat Pump

Carrier Heat Pump Crossover 48000 Btuh Heat Pump Condensing Unit R-454B (208/230-1)

Install Quote Book Service Equipment Quote

Carrier Residential Heat Pump - 37MUHA Heat Pump Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Model: 37MUHAQ48AA3
Manufacturer Number: 37MUHAQ48AA3
Vendor Number: 37MUHAQ48AA3
Catalog Brand: Carrier®, Bryant®, Payne®
Product Family: 37MUHA
AHRI Usage: Outdoor
Approvals: ETL Listed
Brand: Carrier®, Bryant®, Payne®
CFM: 712-1,600
Color: White
Compressor Type: Rotary
Condenser Fan CFM: 3037
Condenser Fan Discharge: Horizontal
Condenser Fan Motor Qty: 1
Condenser Motor Type: PSC (Permanent Split Capacitor)
Cooling Capacity: 48,000
Cooling Rated Capacity Btu/h: 50000
Country Of Origin: CHN
Cycle/Hertz: 60 Hz
EER2: 10.5-13.4
Energy Star Rated: NO
Heating Capacity: 57,300
Heating Capacity @ 5 Deg: 48000
Height: 38.39
High Heat: YES
Length: 16.34
Liquid Line Fitting Type: Flare
Liquid Line Size (OD): 3/8"
Maximum Overcurrent Protection (MOCP): 40
Maximum Piping Height: 98.43'
Maximum Piping Length: 246'
Metering Device: EEV - Electronic Expansion Valve
OPT Code: 1P37MUHAQ48AA3
Phase: Single
Prop 65: YES
Rated Load Amps (RLA): 21
Refrigerant: R-454B
Refrigerant Charge: 8.38 Lbs.
SEER2: 16.5-17.5
Stages Cooling: 1
Stages Heating: 1
Suction Line Fitting Type: Flare
Suction Line Size (OD): 3/4"
Tier: Performance™
Tonnage: 4
UPC: See Optical
Voltage: 208-230 VAC
Weight: 201.06
Width: 38.58

Useful troubleshooting details

Confirm the exact model number, serial number, installed equipment type, and site voltage before service or replacement planning.
Match replacement equipment and accessories against current Carrier compatibility requirements, refrigerant type, capacity, airflow, and local code requirements.

Service planning

How GreenFlow handles Crossover 48000 Btuh Heat Pump Condensing Unit R-454B (208/230-1) requests

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Jack B.

Andrey always does a great job.

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