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Heat pump condensing unit

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Trane Heat pump condensing unit 4TXM2318A12NU**

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Trane Trane AHRI Outdoor - Multi-Zone Ductless Outdoor Heat Pump Heat pump condensing unit Repair, maintenance, and replacement planning
Trane 4TXM2318A12NU** product image

Technical Specifications

Product Specs

  • AHRI unit role: Outdoor
  • AHRI model/pattern: 4TXM2318A12NU**
  • AHRI records represented: 1
  • AHRI equipment type: HP - Mini or Multi Split
  • AHRI refrigerant: R-410A
  • Verified catalog model: 4TXM2318A12NU**
  • Verified product family: Multi-Zone Ductless Outdoor Heat Pump
  • Verified catalog brand: Trane
  • Verified model family: 4TXM
  • AHRI model/pattern: 4TXM2318A12NU**
  • Base catalog model/pattern: 4TXM2318A12NU**
  • Application: ductless outdoor heat pump paired with indoor mini-split units
  • Nominal capacity: 1.5 ton
  • Refrigerant: R-410A
  • Official product page: https://www.trane.com/residential/en/products/ductless-systems/multi-zone-ductless-mini-splits/4txm22/
  • Official technical documentation: https://www.trane.com/content/dam/Trane/Commercial/global/products-systems/equipment/ductless/Single-Zone/R%20Series/Upto%2022%20SEER%209-36MBH.pdf
  • Configuration: ductless heat-pump outdoor unit

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 - Mini or Multi Split

AHRI 204340534

AHRI 204340534 identifies a Mass Save qualified HP - Mini or Multi Split from Trane with outdoor unit 4TXM2318A12NU**.

Service planning

How GreenFlow handles 4TXM2318A12NU** 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

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...

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

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.

Jenny W.

Great service! On time, knowledgeable & professional

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