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Carrier Heat Pump Ductless 18000 Btuh Heat Pump Condensing Unit R-454B (208/230-1)

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Carrier Residential Heat Pump - 37MARA Heat Pump Repair, maintenance, and replacement planning
Carrier Ductless 18000 Btuh Heat Pump Condensing Unit R-454B (208/230-1) product image

Technical Specifications

Product Specs

  • Model: 37MARAQ18AA3
  • Manufacturer Number: 37MARAQ18AA3
  • Vendor Number: 37MARAQ18AA3
  • Catalog Brand: Carrier®, Bryant®, Payne®
  • Product Family: 37MARA
  • AHRI Usage: Outdoor
  • Approvals: ETL Listed; UL Listed
  • Brand: Carrier®, Bryant®, Payne®
  • CFM: 1,766.8
  • Color: Gray
  • Compressor Type: Rotary
  • Condenser Motor HP: 1/10
  • Condenser Motor RPM: 780
  • Condenser Motor Speeds: 3
  • Condenser Motor Type: ECM (Electronically Commutated Motor)
  • Cooling Capacity: 18,000
  • Cooling Rated Capacity Btu/h: 18000
  • Country Of Origin: CHN
  • Cycle/Hertz: 60 Hz
  • EER: 12.8-16.3
  • EER2: 12.8
  • Energy Star Rated: YES
  • Heating Capacity: 18,000
  • Heating Capacity @ 5 Deg: 12800
  • Height: 26.5
  • Length: 13.46
  • Liquid Line Fitting Type: Flare
  • Liquid Line Size (OD): 1/4"
  • Maximum Overcurrent Protection (MOCP): 20
  • Maximum Piping Height: 65.62
  • Maximum Piping Length: 98.42
  • Number Of HVAC Zones: 1
  • OPT Code: 1P37MARAQ18AA3
  • Phase: Single
  • Prop 65: YES
  • Rated Current Amps (RCA): 1.85
  • Rated Load Amps (RLA): 7.2
  • Refrigerant: R-454B
  • Refrigerant Charge: 3
  • SEER: 23.5
  • SEER2: 20-23.5
  • Suction Line Fitting Type: Flare
  • Suction Line Size (OD): 1/2"
  • Tier: Performance™
  • Tonnage: 1.5
  • UPC: See Optical
  • Voltage: 208-230 VAC
  • Weight: 92.59
  • Width: 35.04

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 Heat Pump Condensing 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.

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Our Happy Customers

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

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.

Jenny W.

Great service! On time, knowledgeable & professional

Terry S.

Excellent service from best tech!

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