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Carrier Ductless / Mini Split Ductless 18,000 Btuh Single-Zone Outdoor Cooling Unit R-454B (208/230-1)

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Carrier Residential Ductless / Mini Split - 37MHRAC Ductless / Mini Split Repair, maintenance, and replacement planning
Carrier Ductless 18,000 Btuh Single-Zone Outdoor Cooling Unit R-454B (208/230-1) product image

Technical Specifications

Product Specs

  • Model: 37MHRAC18AA3
  • Manufacturer Number: 37MHRAC18AA3
  • Vendor Number: 37MHRAC18AA3
  • Catalog Brand: Carrier®, Bryant®, Payne®
  • Product Family: 37MHRAC
  • AHRI Usage: Outdoor
  • Approvals: ETL Listed; UL Listed
  • Brand: Carrier®, Bryant®, Payne®
  • Color: White
  • Compressor Type: Rotary
  • Condenser Coil Fins Per Inch (FPI): 22
  • Condenser Fan CFM: 1236
  • Condenser Motor HP: 1/25
  • Condenser Motor RPM: 810
  • Condenser Motor Speeds: 3
  • Condenser Motor Type: ECM (Electronically Commutated Motor)
  • Condenser Motor Watts: 35.4
  • Cooling Capacity: 3,100-18,400
  • Cooling Rated Capacity Btu/h: 17500
  • Country Of Origin: CHN
  • Cycle/Hertz: 60 Hz
  • EER2: 11.7
  • Energy Star Rated: YES
  • Fan Diameter: 16.6
  • Height: 21.85
  • High Heat: NO
  • Inverter: YES
  • Length: 11.93
  • Liquid Line Fitting Type: Flare
  • Liquid Line Size (OD): 1/4"
  • Maximum Overcurrent Protection (MOCP): 20
  • Maximum Piping Height: 65.62
  • Maximum Piping Length: 24.6
  • Metering Device: Capillary Tube
  • Number Of HVAC Zones: 1
  • OPT Code: 1P37MHRAC18AA3
  • Phase: Single
  • Prop 65: YES
  • Rated Current Amps (RCA): 0.62
  • Refrigerant: R-454B
  • Refrigerant Charge: R-454B
  • SEER2: 22.2
  • Stages Cooling: 1
  • Suction Line Fitting Type: Flare
  • Suction Line Size (OD): 1/2"
  • Tier: Comfort™
  • Tonnage: 1.5
  • UPC: See Optical
  • Voltage: 208-230 VAC
  • Weight: 59.97
  • Width: 30.12

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 18,000 Btuh Single-Zone Outdoor Cooling 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

Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

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.

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.

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