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Heat pump condensing unit

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Day & Night Heat pump condensing unit N5H9V48*K*AAA*

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Day & Night Day & Night AHRI Outdoor - Performance 19 Variable-Speed Heat Pump Heat pump condensing unit Repair, maintenance, and replacement planning
Day & Night N5H9V48*K*AAA* product image

Technical Specifications

Product Specs

  • AHRI unit role: Outdoor
  • AHRI model/pattern: N5H9V48*K*AAA*
  • AHRI records represented: 523
  • AHRI equipment type: Central HP
  • AHRI tonnage: 3.875
  • AHRI refrigerant: R-454B
  • Verified catalog model: N5H9V48*K*AAA*
  • Verified product family: Performance 19 Variable-Speed Heat Pump
  • Verified catalog brand: Day & Night
  • Verified model family: N5H9V
  • AHRI model/pattern: N5H9V48*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.dayandnightcomfort.com/en/us/products/heat-pumps/performance-variable-speed-heat-pump-n5h9v

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 217914926

AHRI 217914926 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit FTMA5B48L0C*.
Eligible Central HP <5.4 tons

AHRI 217914942

AHRI 217914942 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit FTMA5B60L0D*.
Eligible Central HP <5.4 tons

AHRI 217914955

AHRI 217914955 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217914968

AHRI 217914968 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217914994

AHRI 217914994 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915007

AHRI 217915007 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915020

AHRI 217915020 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915033

AHRI 217915033 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915046

AHRI 217915046 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
Eligible Central HP <5.4 tons

AHRI 217915072

AHRI 217915072 identifies a Mass Save qualified Central HP <5.4 tons from DAY & NIGHT with outdoor unit N5H9V48*K*AAA* and indoor unit EVM5X48M21A*.
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Service planning

How GreenFlow handles N5H9V48*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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Michele Z.

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

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.

Dev W.

I had a breakdown of my cooling system and Hanna at Green Flow responded to my request right away. They scheduled me same day. The team at Green Flow was easy to communicate with over phone and text. They kept me updated on delays on arrival of the...

Terry S.

Excellent service from best tech!

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