This is a wall-sleeve air conditioner and heater built for hotel rooms, apartments, or additions where central ductwork isn't available. It's designed for property managers and facility electricians who need self-contained, per-room climate control on a 265V commercial electrical circuit.
The HEC124J35AXXX is a High-Efficiency Cooler PTAC chassis built for hospitality and multi-family properties running on 265V commercial electrical service — common in larger hotel and apartment panels. This model pairs an 11,800 BTU/h cooling chassis with a 3.7 kW electric heat strip on a single heating stage, and it is built to meet or exceed ASHRAE 90.1 efficiency standards. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
- Wall sleeve opening: Standard 42 in wide x 16-1/16 in high (industry-standard PTAC sleeve dimension).
- Voltage: 265V — commercial circuits only, minimum 239V / maximum 292V per manufacturer voltage limits.
- Total heat amps: 14.2A; MCA: 17.9A; MOP: 20A.
- Power cord / plug: 7-20P (matches a 20A/265V NEMA receptacle).
- Wall Sleeve is NOT included — sold separately.
- Exterior Architectural Grille is NOT included — sold separately.
- Not compatible with 115V circuits.
- Not compatible with 230/208V circuits — for that voltage class, see the sibling chassis HEC123J (230/208V), not this model.
- This 265V unit requires an Amana PTSB4**E sub-base or the PTPWHWK4 hard-wire kit with PSHW04A disconnect switch (both sold separately) — it is not a standard plug-and-play residential installation.
- Does NOT ship with an LCDI power cord device — LCDI cords apply only to units under 250V; this unit instead uses factory-installed cartridge-style time-delay fuses.
- EER of 11.6 on the cooling chassis — a documented efficiency metric, not a marketing estimate.
- Dehumidification rated at 1.7 pints/hr, useful for humid coastal or shoulder-season climates.
- Fresh air ventilation CFM of 65-95, letting facility staff introduce outside make-up air without opening windows.
- Dual-speed wet/dry airflow (330/245 CFM wet, 316/316 CFM dry) for balanced comfort across compressor cycles.
- Single-stage 3.7 kW electric heat strip backup sized to the 265V circuit, delivering 12,600 BTU/h of heat.
| Spec | Value | Unit |
|---|---|---|
| Cooling Capacity | 11,800 | BTU/h |
| Heating Capacity (265V Electric Heat) | 12,600 | BTU/h |
| Electric Heat Strip Size | 3.7 | kW |
| Heater Stages | 1 | - |
| EER | 11.6 | BTU/Wh |
| Voltage | 265 | V |
| Compressor Amps | 4.8 | A |
| Compressor Watts | 1,045 | W |
| Total Heat Amps | 14.2 | A |
| Total Heat Watts | 3,770 | W |
| MCA (with heater) | 17.9 | A |
| MOP | 20 | A |
| Power Cord / NEMA Plug | 7-20P | - |
| CFM Wet (High/Low) | 330/245 | CFM |
| CFM Dry (High/Low) | 316/316 | CFM |
| Fresh Air Vent CFM | 65-95 | CFM |
| Dehumidification | 1.7 | pints/hr |
| Net Weight | 108 | lb |
| Shipping Weight | 125 | lb |
| Wall Sleeve Dimensions | Standard 42 x 16-1/16 | in |
| Wall Sleeve Included | Not Included | - |
| Exterior Architectural Grille Included | Not Included | - |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Compatible with 265V commercial electrical circuits (239V minimum / 292V maximum operating range).
- Fits standard 42-inch x 16-1/16-inch wall sleeve openings (e.g., WS900E, WS900QW, and related Amana sleeve families).
- Requires an Amana PTSB4**E sub-base or PTPWHWK4 hard-wire kit with PSHW04A disconnect switch for proper 265V termination — sold separately.
- Not compatible with 115V circuits.
- Not compatible with 230/208V circuits — use the sibling chassis HEC123J for 230/208V service instead.
- Wall Sleeve NOT included — must be ordered separately.
- Exterior Architectural Grille NOT included — must be ordered separately.
- Not a drop-in replacement for non-standard or custom sleeve openings without on-site verification.
| Spec | Value |
|---|---|
| Refrigerant Type | R-32 |
| Efficiency Standard Compliance | Meets or exceeds ASHRAE 90.1 |
| Overcurrent Protection (265V, with heater) | 20A MOP, factory-installed cartridge-style time-delay fuses |
| LCDI Power Cord Requirement | Not applicable — LCDI applies only to units under 250V per UL 484 |
| Voltage Operating Range | 239V minimum / 292V maximum |
FAQ
Is the wall sleeve included with this unit?
No. The wall sleeve is sold separately. This chassis fits the industry-standard 42 in x 16-1/16 in wall sleeve opening (e.g. WS900E, WS900QW, or related Amana sleeve models).
What breaker size and plug type does this unit require?
This 265V configuration with the 3.7 kW electric heat strip has a Minimum Circuit Ampacity (MCA) of 17.9A and requires 20A maximum overcurrent protection (MOP). It ships with a 7-20P power cord.
Can this be hardwired for 265V commercial applications?
Yes. 265V models must use an Amana sub-base (PTSB4**E series) or the PTPWHWK4 hard-wire kit with the PSHW04A disconnect switch. Neither is included with this unit and must be ordered separately.
Does this require a licensed electrician or HVAC professional to install and keep the warranty valid?
This is a 265V commercial unit with factory-installed cartridge-style time-delay fuses. Installation involves circuit and sub-base/hardwire decisions that fall under NEC electrical code compliance. Refer to the Resources tab for the exact warranty terms and any professional installation requirements.
Will this fit a standard 42-inch by 16-inch wall sleeve opening?
Yes, this chassis is built for the industry-standard 42 in wide x 16-1/16 in high wall sleeve opening. It is not a fit for non-standard or custom sleeve openings without verification.
Amana backs this PTAC chassis with a 1-Year Repair/Replace warranty and a 5-Year Parts Limited Warranty per the manufacturer badge documentation. Exact terms — including any distinction between commercial hospitality use and residential use — are set out in full in the Product Warranty document. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the complete warranty language before you register or install this unit.
