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AirQuest Evaporator coil ESH5X42M12A*

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AirQuest AirQuest AHRI Indoor - ESH5X cased horizontal slab evaporator coil Evaporator coil Repair, maintenance, and replacement planning
AirQuest ESH5X42M12A* product image

Technical Specifications

Product Specs

  • AHRI unit role: Indoor
  • AHRI model/pattern: ESH5X42M12A*
  • AHRI records represented: 190
  • AHRI equipment type: Central HP
  • AHRI tonnage: 2.95
  • AHRI refrigerant: R-454B
  • Verified catalog model: ESH5X42M12A*
  • Verified product family: ESH5X cased horizontal slab evaporator coil
  • Verified catalog brand: AirQuest
  • Verified model family: ESH5X
  • AHRI model/pattern: ESH5X42M12A*
  • Nominal capacity: 3.5 ton
  • Nominal cooling capacity: 42,000 BTU nominal cooling capacity
  • Cabinet width: 12 in.
  • Configuration: horizontal slab coil for left or right airflow
  • Refrigerant: R-454B
  • Application: matched indoor evaporator coil for air conditioner or heat pump systems
  • Official product page: https://www.airquestcomfort.com/en/us/products/evaporator-coils/esh5x

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 217391804

AHRI 217391804 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391812

AHRI 217391812 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391820

AHRI 217391820 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391828

AHRI 217391828 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391836

AHRI 217391836 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391844

AHRI 217391844 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391852

AHRI 217391852 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391860

AHRI 217391860 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391868

AHRI 217391868 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
Eligible Central HP <5.4 tons

AHRI 217391876

AHRI 217391876 identifies a Mass Save qualified Central HP <5.4 tons from AIRQUEST with outdoor unit D5CUHAH36AAK+TIC2025-0016 and indoor unit ESH5X42M12A*.
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Service planning

How GreenFlow handles ESH5X42M12A* 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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Jenny W.

Great service! On time, knowledgeable & professional

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

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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.

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