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Lennox Evaporator coil CK40DT-30/36C-**

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Lennox Lennox AHRI Indoor - CK40DT dedicated indoor coil Evaporator coil Repair, maintenance, and replacement planning
Lennox CK40DT-30/36C-** product image

Technical Specifications

Product Specs

  • AHRI unit role: Indoor
  • AHRI model/pattern: CK40DT-30/36C-**+TDR
  • AHRI records represented: 40
  • AHRI equipment type: HP - Split System
  • AHRI refrigerant: R-454B
  • Verified catalog model: CK40DT-30/36C-**+TDR
  • Verified product family: CK40DT dedicated indoor coil
  • Verified catalog brand: Lennox
  • Verified model family: CK40DT
  • AHRI model/pattern: CK40DT-30/36C-**+TDR
  • Nominal capacity: 2.5-3 ton
  • Capacity code: 30/36
  • Cabinet code: C
  • Configuration: dedicated indoor coil for commercial split-system applications
  • Official family range: 1.5-5 tons
  • Refrigerant: matched-system dependent; confirm metering device/TXV for the installed outdoor unit
  • Official product page: https://www.lennox.com/commercial/products/split-systems/indoor-coils/ck40-indoor-coil

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 215710354

AHRI 215710354 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit ML14KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710355

AHRI 215710355 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit ML14KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710356

AHRI 215710356 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit ML14KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710357

AHRI 215710357 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit ML14KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710582

AHRI 215710582 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL16KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710584

AHRI 215710584 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL16KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710585

AHRI 215710585 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL16KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 215710586

AHRI 215710586 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL16KP1-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 217443150

AHRI 217443150 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL21KLV-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
ENERGY STAR certified HP - Split System

AHRI 217443152

AHRI 217443152 identifies a Mass Save qualified HP - Split System from Lennox with outdoor unit EL21KLV-024-230A** and indoor unit CK40DT-30/36C-**+TDR.
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Service planning

How GreenFlow handles CK40DT-30/36C-** 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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Jenny W.

Great service! On time, knowledgeable & professional

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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Andrey always does a great job.

Murali S.

HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

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