Heat Pump

Carrier Ductless 18000 Btuh Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) service and support

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

Product service snapshot

Carrier Ductless 18000 Btuh Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) service details

Ductless 18000 Btuh Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) is a Carrier®, Bryant®, Payne® heat pump record from the Carrier Enterprise catalog. Catalog model: 45MBDAQ18XH3. Product family: 45MBDA. 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 Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1)
Equipment type: Heat Pump
Product group: Residential Heat Pump - 45MBDA

Technical snapshot

Ductless 18000 Btuh Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) technical snapshot

Product Specs

Model: 45MBDAQ18XH3
Manufacturer Number: 45MBDAQ18XH3
Vendor Number: 45MBDAQ18XH3
Catalog Brand: Carrier®, Bryant®, Payne®
Product Family: 45MBDA
AHRI Usage: Indoor AHU
Approvals: ETL Listed
Blower Motor HP: 2/9
Blower Motor RPM: 820
Blower Motor Speeds: 3
Blower Motor Type: ECM (Electronically Commutated Motor)
Blower Motor Watts: 263
Blower Wheel Diameter: 6 7/10
Blower Wheel Width: 7 7/10
Brand: Carrier®, Bryant®, Payne®
CFM: 441-706
CFM Heating: 441.45-706.32
COP: 2.3
Color: Gray
Cooling Capacity: 20,600
Cooling Rated Capacity Btu/h: 18000
Country Of Origin: CHN
Cycle/Hertz: 60 Hz
Drain Connection Size: 5/8"
EER2: 12.5
Energy Star Rated: NO
Evaporator Coil Fins Per Inch (FPI): 22
HSPF: 11
HSPF2: 10
Heating Capacity: 23,000-23,000
Height: 9.65
Length: 29.53
Liquid Line Fitting Type: Flare
Liquid Line Size (OD): 1/4"
Metering Device: EEV - Electronic Expansion Valve
Mounting Type: Concealed Ducted
Multi Zone: YES
OPT Code: 1P45MBDAQ18XH3
Phase: Single
Prop 65: YES
Refrigerant: R-454B
Remote Control Included: YES
SEER2: 23-25
Sound Level (dBA): 28-36
Stages Cooling: Variable
Stages Heating: Variable
Suction Line Fitting Type: Flare
Suction Line Size (OD): 1/2"
Tier: Standard
Tonnage: 1.5
UPC: See Optical
Voltage: 208-230 VAC
Weight: 79.81
Width: 39.37

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 Slim Ducted Heat Pump Fan Coil 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 Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) service questions

Can GreenFlow help with Carrier Ductless 18000 Btuh Slim Ducted Heat Pump Fan Coil Unit R-454B (208/230-1) service requests?

Yes. GreenFlow can help collect the right details for Carrier Ductless 18000 Btuh Slim Ducted Heat Pump 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 Ductless 18000 Btuh Slim Ducted Heat Pump 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 Ductless 18000 Btuh Slim Ducted Heat Pump 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 Ductless 18000 Btuh Slim Ducted Heat Pump 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.

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Our Happy Customers

Baran O.

Fast response, punctual, resolved the issue quickly. Thank you

Jahangir R.

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

Mariko C.

Efficient, polite and professional.

Max P.

Green Flow got our AC back up and running at our condo the same day! Andrey was on time, super efficient, and with the right part on hand. The price was fair enough. Would definitely recommend them!

Tom T.

Fantastic job by Green Flow. Andrey, Andrei and Yuri were punctual, very neat, capable, and meticulous in replacing two complete HVAC systems and ductwork repairs in our home. They will now be our go to service for all our HVAC needs going forward.

Yakov S.

I had an excellent experience with Green Flow, they were available to replace my dead central A/C unit on a short notice, and the price was thousands of dollars less than what I got quoted by two other companies. I would definitely use them again.