Heat Pump

Carrier Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) service and support

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

Product service snapshot

Carrier Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) service details

Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) is a Carrier®, Bryant® heat pump record from the Carrier Enterprise catalog. Catalog model: 45MCFAQ18XA3. Product family: 45MCFA. Green Flow Solution uses this page for residential model identification, service planning, maintenance conversations, repair diagnostics, and replacement matching.

Brand: Carrier
Model or series: Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1)
Equipment type: Heat Pump
Product group: Residential Heat Pump - 45MCFA

Technical snapshot

Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) technical snapshot

Product Specs

Model: 45MCFAQ18XA3
Manufacturer Number: 45MCFAQ18XA3
Vendor Number: 45MCFAQ18XA3
Catalog Brand: Carrier®, Bryant®
Product Family: 45MCFA
AHRI Usage: Indoor AHU
Approvals: AHRI, ETL
Blower Motor HP: 1/20
Blower Motor RPM: 950-950
Blower Motor Speeds: 4
Blower Motor Type: ECM (Electronically Commutated Motor)
Blower Motor Watts: 98
Blower Wheel Diameter: 6 1/10
Blower Wheel Width: 6 2/5
Brand: Carrier®, Bryant®
CFM: 421-577
CFM Heating: 420.85-576.83
Color: White
Cooling Capacity: 18,000
Cooling Rated Capacity Btu/h: 18000
Country Of Origin: CHN
Cycle/Hertz: 60 Hz
Energy Star Rated: YES
Evaporator Coil Fins Per Inch (FPI): 20
Heating Capacity: 18,000
Height: 9.2
Length: 26.5
Liquid Line Fitting Type: Flare
Liquid Line Size (OD): 1/4"
Metering Device: EEV - Electronic Expansion Valve
Mounting Type: Ceiling Suspended; Floor Console
Multi Zone: YES
Number Of HVAC Zones: 1
OPT Code: 1P45MCFAQ18XA3
Phase: Single
Prop 65: YES
Refrigerant: R-454B
Remote Control Included: YES
Sound Level (dBA): 29-45
Suction Line Fitting Type: Flare
Suction Line Size (OD): 1/2"
Tonnage: 1.5
Voltage: 208-230 VAC
Weight: 70.5
Width: 42

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 Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor 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.

Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) service questions

Can GreenFlow help with Carrier Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor Unit R-454B (208/230-1) service requests?

Yes. GreenFlow can help collect the right details for Carrier Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor 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 Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor 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 Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor 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 Ductless 18000 Btuh Ceiling/Floor Heat Pump Indoor 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.

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Our Happy Customers

David Z.

Right on time. Excellent service. Fixed the heating system and reasonably priced.

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.

Qin S.

I had a great experience with Green Flow Solution. They were responsive, professional. The technician quickly diagnosed the issue and explained everything clearly. The repair was done efficiently, and the system is running perfectly now. I really appreciated their honesty, and excellent customer service. Highly recommended for anyone...

Pratik R.

Andrey was great. Very timely and fixed our HVAC easily. Would love to have him again

Ted O.

Quick and professional service. Would give more stars if possible. Just amazing.

Enrique B.

Tankless water heater failed . I contacted Green Flow and Aundrey was dispatched. He arrived on time diagnose the issue and called the manufacturer eventually they agreed to replace the unit. Within a few days a new unit was installed and hot water was restored. Service was fast...