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Lennox Gas furnace SLP99UH090XV48C*

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Lennox Lennox AHRI Furnace - SLP99V variable-capacity gas furnace Gas furnace Repair, maintenance, and replacement planning
Lennox SLP99UH090XV48C* product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: SLP99UH090XV48C*
  • AHRI records represented: 70
  • AHRI equipment type: Central HP
  • AHRI tonnage: 1.9166666666666667
  • AHRI refrigerant: R-454B
  • Verified catalog model: SLP99UH090XV48C*
  • Verified product family: SLP99V variable-capacity gas furnace
  • Verified catalog brand: Lennox
  • Verified model family: SLP99V
  • AHRI model/pattern: SLP99UH090XV48C*
  • Furnace input capacity: 90,000 BTU/h input
  • AHRI airflow/cabinet code: 48
  • Model variant code: XV
  • AFUE efficiency: up to 99%
  • Heating stages: modulating
  • Blower/motor: variable speed
  • Cabinet/quiet operation: SilentComfort technology and fully insulated cabinet
  • Blower compartment/cabinet: insulated
  • Emissions class: standard emissions
  • Rating: ENERGY STAR certified
  • Application: matched gas furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.lennox.com/residential/products/heating-cooling/furnaces/slp99v
  • Official specifications page: https://www.lennox.com/residential/products/specifications/slp99v

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 216776052

AHRI 216776052 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit SL22KLV-024-230A** and indoor unit CK40HT-42C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216776076

AHRI 216776076 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit SL22KLV-036-230A** and indoor unit CK40[C,U]T-49C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 216968290

AHRI 216968290 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit SL22KLV-024-230A** and indoor unit CK40[C,U]T-48C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217117064

AHRI 217117064 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-048-230A** and indoor unit CK40HT-48C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217117115

AHRI 217117115 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL21KLV-048-230A** and indoor unit CK40[C,U]T-60C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189876

AHRI 217189876 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-036-230A** and indoor unit CK40HT-36C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189894

AHRI 217189894 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-060-230A** and indoor unit CK40[C,U]T-48C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189907

AHRI 217189907 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-060-230A** and indoor unit CK40[C,U]T-49C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189927

AHRI 217189927 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-060-230A** and indoor unit CK40HT-42C-**+TDR.
Eligible Central HP <5.4 tons

AHRI 217189993

AHRI 217189993 identifies a Mass Save qualified Central HP <5.4 tons from LENNOX with outdoor unit EL18KSLV-060-230A** and indoor unit CK40HT-48C-**+TDR.
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Service planning

How GreenFlow handles SLP99UH090XV48C* 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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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 G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

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...

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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