This is a wall-sleeve heat pump air conditioner and heater for hotel rooms, apartments, or additions near saltwater where central ductwork isn't available and corrosion resistance matters. It's built for property managers and homeowners who need self-contained, per-room climate control in coastal environments.
The PMH123J50CXXX is a DigiAIR series packaged terminal heat pump (PTHP) built for hospitality corridors, coastal apartment buildings, and additions where ductwork isn't practical. This unit carries Amana's Feature Code C seacoast corrosion protection, which targets salt-air exposure common in beachfront and coastal commercial properties. All units in this family meet or exceed 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 required: industry-standard 42 in wide x 16-1/16 in high.
- Voltage: 230/208V (dual-rated; slashed values above reflect 230V/208V performance).
- Electric heat strip: 5.0 kW at 230V / 4.1 kW at 208V, single-stage.
- Total electric heat amps: 22.1A (230V) / 20.0A (208V). MCA: 27.6A. MOP: 30A.
- Power cord: NEMA 6-30P, factory-installed. Ships with LCDI power cord per UL 484 (applies to all units under 250V).
- Wall Sleeve NOT included — order separately (e.g., WS900E, WS900QW, or seacoast-rated WS900SC).
- Exterior Architectural Grille NOT included — order separately (SGK, AGK, or PGK series).
- Not compatible with 115V circuits.
- Not compatible with 265V circuits — for a 265V commercial version of this chassis, see the PMH124J sibling model, which requires an Amana sub-base (PTSB4**E) or hard-wire kit PTPWHWK4 with disconnect PSHW04A, sold separately.
- Not a drop-in replacement for non-standard sleeve openings outside 42 in x 16-1/16 in.
On seacoast-protected chassis like this one, the most common callback is water intrusion at the sleeve-to-drywall junction, not the compressor itself. Salt-air corrosion accelerates any existing pitch error, so drainage details matter more here than on a standard interior installation. Set the sleeve level side-to-side and pitched 1/4 bubble toward the outside using a torpedo level before you screw it into the rough framing — this matches the framing guidance for a 42-1/4 in wide x 16-1/4 in minimum-height rough opening, with the sleeve extending a minimum of 1/4 in beyond the outside wall face. Confirm the condensate path drains outward before insulating around the sleeve; once drywall closes in, you cannot correct pitch without demo. This is standard property-management practice for coastal hospitality units, where a single missed pitch check can mean a warranty claim on drywall and flooring instead of just the PTAC.
Key Benefits
- Heat pump operation with COP of 3.3/3.3 delivers efficient supplemental heating before the electric heat strip engages.
- EER of 11.3/11.5 on the cooling side for per-room efficiency comparisons.
- Fresh air ventilation of 25-35 CFM supports make-up air needs in tightly sealed rooms.
- Cooling airflow of 291/293 CFM and heating airflow of 320/323 CFM sized for standard guest-room and apartment loads.
- R-32 refrigerant used in this chassis.
- Seacoast corrosion protection (Feature Code C) targets salt-air environments common in coastal hospitality and residential properties.
| Spec | Value | Unit |
|---|---|---|
| System Type | PTHP (Packaged Terminal Heat Pump) | — |
| Voltage | 230/208 | V |
| Cooling Capacity | 11,400/11,200 | BTU/h |
| Cooling Amps | 6.7/6.7 | A |
| Cooling Watts | 1,005/970 | W |
| EER | 11.3/11.5 | — |
| Heat Pump Heating Capacity | 10,600/10,400 | BTU/h |
| Heat Pump Heating Amps | 6.7 | A |
| Heat Pump Heating Watts | 940/920 | W |
| COP | 3.3/3.3 | — |
| Cooling CFM | 291/293 | CFM |
| Heating CFM | 320/323 | CFM |
| Fresh Air CFM | 25-35 | CFM |
| Electric Heat Strip Size | 5.0/4.1 | kW |
| Electric Heat Stages | 1 | — |
| Electric Heat Output at 230V | 17,100 | BTU/h |
| Electric Heat Output at 208V | 14,000 | BTU/h |
| Electric Heat Total Watts | 5,070/4,160 | W |
| Electric Heat Total Amps | 22.1/20.0 | A |
| MCA | 27.6 | A |
| MOP | 30 | A |
| NEMA Plug Type | 6-30P | — |
| Refrigerant Type | R-32 | — |
| Corrosion Protection | Seacoast Protected (Feature Code C) | — |
| 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 NEMA 6-30P plug on the factory-installed power cord.
- Fits standard 42-inch x 16-1/16-inch wall sleeve openings, including the WS900E, WS900QW, and seacoast-rated WS900SC sleeves.
- Not compatible with 115V circuits.
- Not compatible with 265V circuits — see the PMH124J commercial sibling model, which requires a separate Amana sub-base or hard-wire kit.
- Wall Sleeve NOT included — order separately.
- Exterior Architectural Grille NOT included — order separately.
- Not a drop-in fit for non-standard or oversized sleeve openings.
| Spec | Value | Unit |
|---|---|---|
| Refrigerant Type | R-32 | — |
| Voltage Operating Range | 197-253 | V |
| Power Cord Protection | LCDI per UL 484 (units under 250V) | — |
| Overcurrent Protection (No Heater) | 15 | A |
| ASHRAE Compliance | Meets or exceeds ASHRAE 90.1 | — |
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 sleeve opening (for example, the WS900E or WS900SC seacoast-rated sleeve), but you must order it as a separate line item.
What breaker size and plug type does this unit require?
This configuration requires a 30-amp circuit (MOP 30A, MCA 27.6A) and uses a NEMA 6-30P plug on a factory-installed power cord. It ships with an LCDI power cord per UL 484, since it operates under 250V.
Can this be hardwired for 265V commercial applications?
No. This model is a 230/208V unit and is not rated for 265V circuits. If you need a 265V commercial version of this chassis, look at the PMH124J sibling model, which requires an Amana sub-base (PTSB4**E series) or hard-wire kit PTPWHWK4 with disconnect PSHW04A, sold separately.
Will this fit a standard 42-inch by 16-inch wall sleeve opening?
Yes. This chassis is designed for the industry-standard 42 in wide x 16-1/16 in high sleeve opening. It is not a drop-in fit for non-standard or oversized sleeve openings.
Does this require a licensed electrician or HVAC professional to install and keep the warranty valid?
Manufacturer warranty terms for licensed-installer requirements are detailed in the warranty PDF. Refer to the Resources (System Manuals and Warranty) tab for the exact language before installing.
Warranty & Registration
Published warranty coverage for this model is 1-Year Repair/Replace and 5-Year Parts Limited Warranty. Exact terms, including any distinction between residential and commercial hospitality usage, are set out in the manufacturer warranty PDF. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the full warranty document before you order or install.
