This is a wall-sleeve air conditioner with electric heat backup for hotel rooms, apartments, assisted living units, or additions where central ductwork isn't available. It's built for property managers and homeowners who need self-contained, per-room climate control with a straightforward 230/208V electrical hookup.
The HEC123J35AXXX is a High-Efficiency Cooler (HEC) chassis PTAC built for hospitality rooms, multi-family units, and room additions where a dedicated 230/208V circuit is available. It carries an EER of 11.9/11.9 and meets or exceeds ASHRAE 90.1. 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.
Critical Fit & Power Requirements
- Wall sleeve opening: Standard 42 in wide x 16-1/16 in high (industry-standard PTAC sleeve size).
- Voltage: 230/208V — compatible with 230/208V circuits only.
- Amperage: MCA 19.5A / MOP 20A; total heater amps 15.5/14.1A with the 3.5/3.0 kW electric heat strip engaged.
- NEMA plug type: 6-20P, factory-installed power cord with LCDI device per UL 484 (applies to all units under 250V).
- Wall Sleeve is NOT included. Purchase a sleeve (e.g., WS900E / WS900QW) separately.
- Exterior Architectural Grille is NOT included. Purchase a grille (SGK, AGK, or PGK series) separately.
- Not compatible with 115V circuits.
- Not compatible with 265V hardwire-only applications — that configuration is covered by the sibling chassis HEC124J (265V commercial), which requires an Amana PTSB4**E sub-base or PTPWHWK4 hard-wire kit with PSHW04A disconnect.
- Not a drop-in replacement for non-standard or custom sleeve openings.
The most common callback on a new PTAC install isn't the electrical — it's water intrusion around the sleeve after a few freeze-thaw cycles. When you set the sleeve into the rough opening, pitch it 1/4 bubble toward the outside wall using a torpedo level; a sleeve set dead level, or worse, pitched inward, lets condensate run back toward the drywall instead of out through the chassis drain path. Confirm the pitch before you fasten the sleeve permanently, not after the unit is racked in. This matches the framing guidance for a rough opening of roughly 42-1/4 in wide x 16-1/4 in minimum high, with the sleeve extending a minimum of 1/4 in beyond the exterior wall face. On the electrical side, verify the receptacle is a genuine NEMA 6-20R before you ever plug in the 6-20P cord — a mismatched or backstabbed receptacle on a 20A/230V circuit is a documented fire path, and it's worth checking against a NEMA receptacle chart during rough-in, not at final trim. Property managers doing multi-unit turns should treat sleeve pitch and receptacle verification as a standard punch-list item, not an afterthought, per NEC receptacle configuration requirements.
Key Benefits
- EER of 11.9/11.9 at 230V/208V, supporting ASHRAE 90.1 compliance for commercial specifications.
- 1.7 pints/hr dehumidification for humid-climate guest comfort.
- Fresh air ventilation adjustable from 65 to 95 CFM for make-up air control.
- R-32 refrigerant chassis.
- Single-stage 3.5/3.0 kW electric heat backup rated for 12,000 BTU/h (230V) or 9,900 BTU/h (208V) supplemental heating.
- Factory LCDI power cord (UL 484) simplifies plug-and-play install on a correctly wired 20A/230V circuit — no hardwiring required.
| Spec | Value | Unit |
|---|---|---|
| Cooling Capacity | 11,700/11,400 | BTU/h |
| Heating Capacity (230V) | 12,000 | BTU/h |
| Heating Capacity (208V) | 9,900 | BTU/h |
| Electric Heat Strip Size | 3.5/3.0 | kW |
| Heat Stages | 1 | — |
| EER | 11.9/11.9 | — |
| Voltage | 230/208 | V |
| Compressor Amps | 6.1/6.1 | A |
| Compressor Watts | 1,015/965 | W |
| Total Heater Amps | 15.5/14.1 | A |
| Total Heater Watts | 3,570/2,935 | W |
| MCA | 19.5 | A |
| MOP | 20 | A |
| NEMA Plug Type | 6-20P | — |
| 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 |
| Ship Weight | 125 | lb |
| Refrigerant Type | R-32 | — |
| 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.
Compatibility & Fitment
- Compatible with 230/208V circuits via a NEMA 6-20P plug into a matching 6-20R receptacle.
- Fits the industry-standard 42 in x 16-1/16 in wall sleeve opening.
- Not compatible with 115V circuits.
- Not compatible with 265V-only hardwire applications; use the HEC124J 265V commercial sibling with the required Amana PTSB4**E sub-base or PTPWHWK4 hard-wire kit and PSHW04A disconnect for that voltage class.
- Wall Sleeve NOT included — purchase separately (e.g., WS900E, WS900QW, or other sleeve variants).
- Exterior Architectural Grille NOT included — purchase separately (SGK, AGK, or PGK series).
- Not a drop-in replacement for non-standard or custom-depth sleeve openings.
| Item | Value |
|---|---|
| Refrigerant Type | R-32 |
| ASHRAE Compliance | Meets or exceeds ASHRAE 90.1 |
| Electrical Compliance | Factory LCDI power cord per UL 484 (applies to all units under 250V) |
| Voltage Operating Range | Min 197V / Max 253V (230/208V models) |
FAQ
Is the wall sleeve included with this unit?
No. The wall sleeve is sold separately. This unit is designed to install into an industry-standard 42 in wide x 16-1/16 in high sleeve opening, such as the Amana WS900E or WS900QW series.
What breaker size and plug type does this unit require?
This configuration requires a 20-amp circuit (MOP 20A, MCA 19.5A) and uses a NEMA 6-20P power cord plug. The compressor-only draw is 6.1/6.1A, but total heater amps with the 3.5/3.0 kW electric heat strip are 15.5/14.1A.
Can this be hardwired for 265V commercial applications?
No. This unit is a 230/208V model, not a 265V model. It ships with a factory-installed LCDI power cord per UL 484 and does not use or require a 265V sub-base. The 265V commercial equivalent chassis is the HEC124J, which requires an Amana PTSB4**E sub-base or PTPWHWK4 hard-wire kit with PSHW04A disconnect (sold separately).
Will this fit a standard 42-inch by 16-inch wall sleeve opening?
Yes. This chassis is built for the industry-standard 42 in x 16-1/16 in sleeve opening. It is not a drop-in fit for non-standard or custom sleeve openings.
Does this require a licensed electrician or HVAC professional to install and keep the warranty valid?
[NEEDS VERIFICATION] Installer licensing requirements for warranty validity are not specified in the provided data. Refer to the "Resources (System Manuals and Warranty)" Tab above for the full warranty document.
Warranty & Registration
This unit carries a 1-Year Repair/Replace warranty and a 5-Year Parts Limited Warranty on covered components. Exact terms, including any distinction between commercial hospitality usage and residential usage, are detailed in the manufacturer warranty document. 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.
