Heat Pump

Carrier Heat Pump 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1-60)

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Carrier Residential Heat Pump - 45MUHA Heat Pump Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Model: 45MUHAQ36XX3
Manufacturer Number: 45MUHAQ36XX3
Vendor Number: 45MUHAQ36XX3
Catalog Brand: Carrier®, Bryant®, Payne®
Product Family: 45MUHA
AHRI Usage: Indoor AHU
Approvals: ETL Listed; UL Listed
Blower Motor HP: 17/50
Blower Motor RPM: 852-970
Blower Motor Speeds: 3
Blower Motor Type: ECM (Electronically Commutated Motor)
Blower Motor Watts: 334
Blower Wheel Diameter: 12 1/2
Blower Wheel Width: 9 1/5
Brand: Carrier®, Bryant®, Payne®
CFM: 971.2-1,236.1
CFM Heating: 971.2-1,236.1
Color: Gray
Cooling Capacity: 30,000-36,000
Cooling Rated Capacity Btu/h: 36000
Country Of Origin: MEX
Cycle/Hertz: 60 Hz
Energy Star Rated: YES
Evaporator Coil Fins Per Inch (FPI): 16
Heating Capacity: 33,200-37,400
Height: 58.125
Length: 21.5
Liquid Line Fitting Type: Flare
Liquid Line Size (OD): 3/8"
Metering Device: EEV - Electronic Expansion Valve
OPT Code: 1P45MUHAQ36XX3
Phase: Single
Prop 65: YES
Refrigerant: R-454B
Sound Level (dBA): 33-46.5
Suction Line Fitting Type: Flare
Suction Line Size (OD): 3/4"
Tier: Performance™
Tonnage: 3
UPC: See Optical
Voltage: 208-230 VAC
Weight: 149.25
Width: 17.5

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 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1-60) 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

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

Jack B.

Andrey always does a great job.

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.

Jahangir R.

They were very organized to communicate and be on time to come to look at my air condition to fix it.

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