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AirQuest Gas furnace *80CSU1002120B*

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AirQuest AirQuest AHRI Furnace - Ion 80 Ultra Low NOx Gas Furnace Gas furnace Repair, maintenance, and replacement planning
AirQuest *80CSU1002120B* product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: *80CSU1002120B*
  • AHRI records represented: 126
  • AHRI equipment type: Central HP
  • AHRI tonnage: 2.9166666666666665
  • AHRI refrigerant: R-454B
  • Verified catalog model: *80CSU1002120B*
  • Verified product family: Ion 80 Ultra Low NOx Gas Furnace
  • Verified catalog brand: AirQuest
  • Verified model family: F80CSU
  • AHRI model/pattern: *80CSU1002120B*
  • Nominal input: 100,000 BTU/h input
  • AFUE family: 80%
  • Heating stages: single-stage
  • Blower: variable-speed
  • NOx classification: ultra-low NOx
  • Cabinet width code: 21
  • Application: matched gas furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.airquestcomfort.com/en/us/products/gas-furnaces/ion-80-ultra-low-nox-gas-furnace

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 217909466

AHRI 217909466 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V36*K*AAA* and indoor unit EVM5X43M21A*.
Eligible Central HP <5.4 tons

AHRI 217909473

AHRI 217909473 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit Q5H9V36*K*AAA* and indoor unit EVM5X43M21A*.
Eligible Central HP <5.4 tons

AHRI 217915383

AHRI 217915383 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X49M21A*.
Eligible Central HP <5.4 tons

AHRI 217915813

AHRI 217915813 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X60M21A*.
Eligible Central HP <5.4 tons

AHRI 217916256

AHRI 217916256 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVD5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217916634

AHRI 217916634 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVD5X49M24A*.
Eligible Central HP <5.4 tons

AHRI 217916974

AHRI 217916974 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVD5X60M21A*.
Eligible Central HP <5.4 tons

AHRI 217917399

AHRI 217917399 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVD5X61M21A*.
Eligible Central HP <5.4 tons

AHRI 217917803

AHRI 217917803 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V48*K*AAA* and indoor unit EVD5X61M24A*.
Eligible Central HP <5.4 tons

AHRI 217923887

AHRI 217923887 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit N5H9V36*K*AAA* and indoor unit EA*5X42M21A*.
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Service planning

How GreenFlow handles *80CSU1002120B* 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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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.

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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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In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

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