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Heat pump condensing unit

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Comfortmaker Heat pump condensing unit Q5H9V48*K*AAA*

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Comfortmaker Comfortmaker AHRI Outdoor - QuietComfort 19 Variable-Speed Heat Pump Heat pump condensing unit Repair, maintenance, and replacement planning
Comfortmaker 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: Comfortmaker
  • 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.comfortmaker.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 217914930

AHRI 217914930 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit FTMA5B48L0C*.
Eligible Central HP <5.4 tons

AHRI 217914946

AHRI 217914946 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit FTMA5B60L0D*.
Eligible Central HP <5.4 tons

AHRI 217914959

AHRI 217914959 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217914972

AHRI 217914972 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217914998

AHRI 217914998 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915011

AHRI 217915011 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915024

AHRI 217915024 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915037

AHRI 217915037 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915050

AHRI 217915050 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER with outdoor unit Q5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915076

AHRI 217915076 identifies a Mass Save qualified Central HP <5.4 tons from COMFORTMAKER 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

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.

Terry S.

Excellent service from best tech!

Michael C.

always available, easy to get a hold of, as a property manager I get lots no heat emergency, usually get to it same day or next day

Neal V.

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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