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Comfortmaker Gas furnace R80MSU-80,000 BTU/h input

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Comfortmaker Comfortmaker AHRI Furnace - R-Series 80 Gas Furnace Gas furnace Repair, maintenance, and replacement planning
Comfortmaker R80MSU-80,000 BTU/h input product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: *80MSU0802120A*
  • AHRI records represented: 205
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9
  • AHRI refrigerant: R-454B
  • Verified catalog model: *80MSU0802120A*
  • Verified product family: R-Series 80 Gas Furnace
  • Verified catalog brand: Comfortmaker
  • Verified model family: R80MSU
  • AHRI model/pattern: *80MSU0802120A*
  • Nominal input: 80,000 BTU/h input
  • AFUE family: 80%
  • Heating stages: single-stage
  • Blower: multi-speed
  • NOx classification: standard
  • Cabinet width code: 21
  • Application: matched gas furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.comfortmaker.com/en/us/products/gas-furnaces/r-series-r80msu

Useful troubleshooting details

  • Confirm the installed model and serial number, matched indoor or outdoor equipment, voltage, refrigerant, controls, and AHRI certificate before service or replacement planning.
  • Use the linked AHRI certificates to verify matched-system combinations, rebate conversations, and equipment eligibility before quoting replacement work.
  • Collect photos of the nameplate, equipment access, recent fault history, and comfort symptoms before dispatch or proposal planning.

Certification match

AHRI certificates

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Eligible Central HP <5.4 tons

AHRI 216735577

AHRI 216735577 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH24AAK and indoor unit EA*5X37M21A*.
Eligible Central HP <5.4 tons

AHRI 216736358

AHRI 216736358 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH24AAK and indoor unit ESH5X24M12A*.
Eligible Central HP <5.4 tons

AHRI 216737237

AHRI 216737237 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH24AAK and indoor unit ESH5X30M12A*.
Eligible Central HP <5.4 tons

AHRI 216738226

AHRI 216738226 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH24AAK and indoor unit ESH5X36M12A*.
Eligible Central HP <5.4 tons

AHRI 216755690

AHRI 216755690 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH30AAK and indoor unit EA*5X43M21A*.
Eligible Central HP <5.4 tons

AHRI 217391543

AHRI 217391543 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X48M12A*.
Eligible Central HP <5.4 tons

AHRI 217391870

AHRI 217391870 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217392197

AHRI 217392197 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X36M12A*.
Eligible Central HP <5.4 tons

AHRI 217392500

AHRI 217392500 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217392787

AHRI 217392787 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X43M21A*.
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Service planning

How GreenFlow handles R80MSU-80,000 BTU/h input 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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Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

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Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

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HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

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