Green Flow Solution logo
Schedule Service

Heat Pump

Back to Carrier products

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

Schedule Service Check Availability
Carrier Residential Heat Pump - 45MUAA Heat Pump Repair, maintenance, and replacement planning
Carrier 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) product image

Product service snapshot

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

3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) is a Carrier®, Bryant® heat pump record from the Carrier Enterprise catalog. Catalog model: 45MUAAQ36XX3. Product family: 45MUAA. Green Flow Solution uses this page for residential model identification, service planning, maintenance conversations, repair diagnostics, and replacement matching.

  • Brand: Carrier
  • Model or series: 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1)
  • Equipment type: Heat Pump
  • Product group: Residential Heat Pump - 45MUAA

Technical snapshot

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

Product Specs

  • Model: 45MUAAQ36XX3
  • Manufacturer Number: 45MUAAQ36XX3
  • Vendor Number: 45MUAAQ36XX3
  • Catalog Brand: Carrier®, Bryant®
  • Product Family: 45MUAA
  • AHRI Usage: Indoor AHU
  • Air Flow Direction: Multi-Position
  • Approvals: ETL Listed; UL Listed
  • Blower Motor HP: 1/2
  • Blower Motor RPM: 685
  • Blower Motor Speeds: 3
  • Blower Motor Type: ECM (Electronically Commutated Motor)
  • Brand: Carrier®, Bryant®
  • CFM: 865.24-1,188.97
  • Cabinet Width: 21
  • Color: Gray
  • Cooling Capacity: 36,000
  • Cooling Rated Capacity Btu/h: 36000
  • Country Of Origin: CHN
  • Cycle/Hertz: 60 Hz
  • Drain Connection Size: 3/4"
  • Electric Heat Range [kW]: 5-20
  • Energy Star Rated: YES
  • Evaporator Coil Fins Per Inch (FPI): 20
  • Filter Size: 19 1/2" x 20" x 1
  • Heating Capacity: 11,000-48,000
  • Height: 49.02
  • Includes Filter Rack: YES
  • Length: 21.02
  • Liquid Line Fitting Type: Flare
  • Liquid Line Size (OD): 3/8"
  • Maximum Overcurrent Protection (MOCP): 15
  • Metering Device: EEV - Electronic Expansion Valve
  • Mounting Type: Ducted Multi-Position
  • OPT Code: 1P45MUAAQ36XX3
  • Phase: Single
  • Prop 65: YES
  • Refrigerant: R-454B
  • Suction Line Fitting Type: Flare
  • Suction Line Size (OD): 3/4"
  • Tier: Standard
  • Tonnage: 3
  • UPC: See Optical
  • Voltage: 115 VAC; 208-230 VAC
  • Weight: 129.41
  • Width: 21.02

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) requests

1

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.

2

Describe the service issue

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

3

Review access and history

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

4

Plan the next step

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

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

Can GreenFlow help with Carrier 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) service requests?

Yes. GreenFlow can help collect the right details for Carrier 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) service requests, including the model, symptoms, equipment age, building type, access notes, photos, and timing.

What symptoms should I mention for 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1)?

Helpful symptoms include no heat, no cooling, weak airflow, defrost or outdoor icing concerns, auxiliary heat behavior, thermostat issues, short cycling, unusual noise, and whether the request is urgent or planned maintenance.

Is 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) used for residential or commercial properties?

Heat pump requests may come from homes, condos, multifamily properties, managed buildings, and light-commercial spaces depending on the system type and building layout.

What helps schedule 3 Ton Heat Pump Crossover System Fan Coil Unit R-454B (208/230-1) service faster?

Share the exact model and serial number if available, clear photos of the equipment and surrounding access area, current symptoms, recent maintenance history, and whether the request is repair, maintenance, or replacement planning.

Brands We Service

Popular cities

Service Areas

View All

Our Happy Customers

Jose M.

Green Flow responded immediately when our ac system went out. Within an hour, Andrey was at our house and diagnosed the problem. Fantastic.

Moshe H.

Excellent work

Benjamin B.

Great Service, fast and super friendly!

Marina P.

high quality, fast and at a high level! Highly recommend!

Bridget D.

Next day service, Good communication and fair pricing! They were in and out and we are fully back up and running with our thermostat.

David L.

Quick to provide service and diagnose. Provided a fair quote and honored the quote. Had to order the piece that was needed. Technician offered to come on Sunday to provide service. Would hire again.

View All