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Heat pump condensing unit

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Trane Heat pump condensing unit WHJ150A(3,4,W)**0***4

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Trane Trane AHRI Outdoor - Precedent Heat Pump Rooftop Unit Heat pump condensing unit Repair, maintenance, and replacement planning
Trane WHJ150A(3,4,W)**0***4 product image

Technical Specifications

Product Specs

  • AHRI unit role: Outdoor
  • AHRI model/pattern: WHJ150A(3,4,W)**0***4
  • AHRI records represented: 1
  • AHRI equipment type: Single Packaged Roof Top Units (Commercial Only)
  • AHRI tonnage: 12.5
  • AHRI refrigerant: R-410A
  • Verified catalog model: WHJ150A(3,4,W)**0***4
  • Verified product family: Precedent Heat Pump Rooftop Unit
  • Verified catalog brand: Trane
  • Verified model family: WHJ
  • AHRI model/pattern: WHJ150A(3,4,W)**0***4
  • Base catalog model/pattern: WHJ150A(3,4,W)**0***4
  • Application: all-electric packaged rooftop heat pump
  • Nominal capacity: 12.5 ton
  • Refrigerant: R-410A
  • Official product page: https://www.trane.com/commercial/north-america/us/en/products-systems/packaged-units-and-split-systems/rooftop-units/precedent-heat-pump.html
  • Official technical documentation: https://elibrary.tranetechnologies.com/public/commercial-hvac/Literature/Product%20Catalog/PKGP-PRC023*-EN
  • Unit controller family: Symbio 700 or legacy Trane rooftop controls depending on model vintage
  • Commercial rooftop application: curb-mounted packaged 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.

Troubleshooting

Error Codes

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RTRM LED2 1 Blink ReliaTel RTRM controls

Emergency stop open during test mode

Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service.
RTRM LED2 2 Flashes ReliaTel RTRM controls

ReliaTel diagnostic present

Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service.
Service output ON ReliaTel service output

Clogged filter switch active

Document the flash pattern, check thermostat, filter, and visible outdoor-unit obstruction status, and schedule service if the condition remains.
Service output Pulsing ReliaTel service output

Fan, freeze, smoke, or condensate diagnostic

Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service.
Cooling output Pulsing ReliaTel cooling output

Cooling circuit or pressure diagnostic

Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service.
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Certification match

AHRI certificates

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Eligible_until_date Single Packaged Roof Top Units (Commercial Only)

AHRI 211017802

AHRI 211017802 identifies a Mass Save qualified Single Packaged Roof Top Units (Commercial Only) from TRANE with outdoor unit WHJ150A(3,4,W)**0***4.

Service planning

How GreenFlow handles WHJ150A(3,4,W)**0***4 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

Jahangir R.

They were very organized to communicate and be on time to come to look at my air condition to fix it.

Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

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.

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.

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