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Heat pump condensing unit

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Tempstar Heat pump condensing unit Q5H9V48*K*AAA*

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Tempstar Tempstar AHRI Outdoor - QuietComfort 19 Variable-Speed Heat Pump Heat pump condensing unit Repair, maintenance, and replacement planning
Tempstar Q5H9V48*K*AAA* product image

Technical Specifications

Product Specs

  • AHRI unit role: Outdoor
  • AHRI model/pattern: Q5H9V48*K*AAA*
  • AHRI records represented: 505
  • AHRI equipment type: Central HP
  • AHRI tonnage: 3.875
  • AHRI refrigerant: R-454B
  • Verified catalog model: Q5H9V48*K*AAA*
  • Verified product family: QuietComfort 19 Variable-Speed Heat Pump
  • Verified catalog brand: Tempstar
  • Verified model family: Q5H9V
  • AHRI model/pattern: Q5H9V48*K*AAA*
  • Nominal capacity: 4 ton
  • Nominal cooling capacity: 48,000 BTU nominal cooling capacity
  • Cooling efficiency: up to 19 SEER2
  • Heating efficiency: up to 10 HSPF2
  • Compressor: variable-speed
  • Refrigerant: R-454B
  • Sound level: as low as 57 dBA
  • Capacity range: 2-5 tons within the official family
  • Official product page: https://www.tempstar.com/en/us/products/heat-pumps/quietcomfort-variable-speed-heat-pump-q5h9v

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 217914934

AHRI 217914934 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit FTMA5B48L0C*.
Eligible Central HP <5.4 tons

AHRI 217914950

AHRI 217914950 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit FTMA5B60L0D*.
Eligible Central HP <5.4 tons

AHRI 217914963

AHRI 217914963 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217914976

AHRI 217914976 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915002

AHRI 217915002 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915015

AHRI 217915015 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915028

AHRI 217915028 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915041

AHRI 217915041 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915054

AHRI 217915054 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915080

AHRI 217915080 identifies a Mass Save qualified Central HP <5.4 tons from TEMPSTAR with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
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Service planning

How GreenFlow handles Q5H9V48*K*AAA* 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

Jack B.

Andrey always does a great job.

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.

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.

John F.

I needed 2 new AC units and decided to go with high efficiency heat pumps. I chose Greenflow because of the equipment they offered, and the price (2nd lowest quote and much cheaper than the average of all quote we received). Their technicians were very detail oriented and...

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