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Comfortmaker Gas furnace R80MSU-100,000 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-100,000 BTU/h input product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: *80MSU1002120A*
  • AHRI records represented: 162
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9333333333333333
  • AHRI refrigerant: R-454B
  • Verified catalog model: *80MSU1002120A*
  • Verified product family: R-Series 80 Gas Furnace
  • Verified catalog brand: Comfortmaker
  • Verified model family: R80MSU
  • AHRI model/pattern: *80MSU1002120A*
  • Nominal input: 100,000 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 216735587

AHRI 216735587 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 216736369

AHRI 216736369 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 216737248

AHRI 216737248 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 216738237

AHRI 216738237 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 217391551

AHRI 217391551 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 217391878

AHRI 217391878 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 217392205

AHRI 217392205 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 217392508

AHRI 217392508 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 217392795

AHRI 217392795 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X43M21A*.
Eligible Central HP <5.4 tons

AHRI 217393082

AHRI 217393082 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit EA*5X42M21A*.
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Service planning

How GreenFlow handles R80MSU-100,000 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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Michele Z.

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

Jack B.

Andrey always does a great job.

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

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