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Heat pump condensing unit

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Maratherm Heat pump condensing unit N5H8T48*K*AAA*

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Maratherm Maratherm AHRI Outdoor - Performance 18 Two-Stage Heat Pump Heat pump condensing unit Repair, maintenance, and replacement planning
Maratherm N5H8T48*K*AAA* product image

Technical Specifications

Product Specs

  • AHRI unit role: Outdoor
  • AHRI model/pattern: N5H8T48*K*AAA*
  • AHRI records represented: 241
  • AHRI equipment type: HP - Split System
  • AHRI refrigerant: R-454B
  • Verified catalog model: N5H8T48*K*AAA*
  • Verified product family: Performance 18 Two-Stage Heat Pump
  • Verified catalog brand: Maratherm
  • Verified ENERGY STAR dataset: ENERGY STAR Certified Heat Pumps
  • Manufacturer: Carrier Corporation
  • ENERGY STAR outdoor brand: MARATHERM
  • ENERGY STAR model name: 2-STAGE 18 SEER HP
  • ENERGY STAR outdoor model: N5H8T48*K*AAA*
  • ENERGY STAR indoor model: FTMA5B60L0D*
  • ENERGY STAR furnace model:
  • Matched-system SEER2: 18.00
  • Matched-system EER2: 13.50
  • Matched-system HSPF2: 8.10
  • Matched-system cooling capacity: 48500 BTU/h
  • Heating capacity at 47F: 48500 BTU/h
  • Heating capacity at 17F: 30600 BTU/h
  • Refrigerant: R-454B (GWP:470 | Lower GWP)
  • ENERGY STAR source dataset: https://data.energystar.gov/d/83eb-xbyy
  • Carrier-family product page: https://www.airquestcomfort.com/en/us/products/heat-pumps/performance-two-stage-heat-pump-n5h8t
  • Carrier-family model family: N5H8T
  • Nominal capacity: 4 ton
  • Compressor: two-stage scroll
  • Sound level: as low as 69 dBA

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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ENERGY STAR certified HP - Split System

AHRI 215560726

AHRI 215560726 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit FTMA5B60L0D*.
ENERGY STAR certified HP - Split System

AHRI 215622947

AHRI 215622947 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215622966

AHRI 215622966 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215622985

AHRI 215622985 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623001

AHRI 215623001 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623015

AHRI 215623015 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623029

AHRI 215623029 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623119

AHRI 215623119 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623168

AHRI 215623168 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
ENERGY STAR certified HP - Split System

AHRI 215623184

AHRI 215623184 identifies a Mass Save qualified HP - Split System from MARATHERM with outdoor unit N5H8T48*K*AAA* and indoor unit EVM5X48M21A*.
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Service planning

How GreenFlow handles N5H8T48*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

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.

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

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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