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Carrier Gas furnace 59CU5B080C21**20

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Carrier Carrier AHRI Furnace - Infinity 95 Ultra-Low NOx Gas Furnace Gas furnace Repair, maintenance, and replacement planning
Carrier 59CU5B080C21**20 product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: 59CU5B080C21**20
  • AHRI records represented: 125
  • AHRI equipment type: Central HP
  • AHRI tonnage: 4.166666666666667
  • AHRI refrigerant: R-454B
  • Verified catalog model: 59CU5B080C21**20
  • Verified product family: Infinity 95 Ultra-Low NOx Gas Furnace
  • Verified catalog brand: Carrier
  • Verified model family: 59CU5
  • Verified catalog model pattern: 59CU5B080C21--20
  • AHRI model/pattern: 59CU5B080C21**20
  • Product family: Infinity 95 Ultra-Low NOx Gas Furnace
  • AFUE efficiency: up to 95%
  • Combustion: condensing gas furnace
  • Gas valve: single-stage
  • Blower motor: variable-speed ECM blower motor
  • Controls: Infinity communicating capable furnace family
  • NOx rating: ultra-low NOx, 14 ng/J compliant family
  • Furnace input capacity: 80,000 BTU/h input
  • Cabinet width code: 21 in.
  • AHRI airflow/output code: 20
  • Application: matched indoor furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.carrier.com/us/en/residential/furnaces/59cu5/
  • Technical documentation: https://www.shareddocs.com/hvac/docs/1009/Public/00/59CU5B-03SI.pdf

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 215588127

AHRI 215588127 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CAA**6124AM*+UI.
Eligible Central HP <5.4 tons

AHRI 215588141

AHRI 215588141 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CSAH*4812AM*+UI.
Eligible Central HP <5.4 tons

AHRI 215588171

AHRI 215588171 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CSAH*6012AM*+UI.
Eligible Central HP <5.4 tons

AHRI 215588215

AHRI 215588215 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAMA4921XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588229

AHRI 215588229 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAMA6021XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588275

AHRI 215588275 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAMA6124XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588341

AHRI 215588341 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAVA6021XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588381

AHRI 215588381 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAVA6121XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588401

AHRI 215588401 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CVAVA6124XMA*+UI.
Eligible Central HP <5.4 tons

AHRI 215588564

AHRI 215588564 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 27VNA154A*030* and indoor unit CAA**6121AM*+UI.
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Service planning

How GreenFlow handles 59CU5B080C21**20 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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Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Jenny W.

Great service! On time, knowledgeable & professional

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...

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.

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