MRCOOL 12,000 BTU Wall Mount Air Handler - O-12-HP-WMAH-230C-O
Experience dependable heating and cooling with the MRCOOL® OLYMPUS ESTAR® 12k Series air handler, designed for spaces up to 550 square feet—perfect for bedrooms, home offices, garages, and more. Its compact design makes installation quick and hassle-free for your technician. Stay in control from anywhere with the MRCOOL® Smart HVAC app, which connects via Wi-Fi to your smartphone or tablet. Prefer a more hands-on approach? Use the included remote control for simple and convenient operation. Engineered for energy efficiency, this unit delivers strong performance with a SEER2 rating of 25.5, EER2 of 13, and HSPF2-4 of 10.6—helping you reduce energy consumption and save on utility costs. A variety of indoor fan speeds ensures optimal comfort, while its whisper-quiet operation at just 46 dB keeps noise to a minimum. Now using R-454B refrigerant, an environmentally friendly option, this system supports a greener future without compromising performance. Enjoy multiple control options, including wireless remote access, the smartHVAC app, and voice control compatibility with Amazon Alexa and Google Assistant—giving you the flexibility to adjust your comfort your way. Backed by an industry-leading warranty, including a 7-year compressor coverage and a 5-year parts warranty, the MRCOOL® OLYMPUS ESTAR® 12k Series offers advanced features, quiet operation, and year-round comfort you can count on.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | MRCOOL |
| Model Number | O-12-HP-WMAH-230C-O |
| Product Type | Wall Mount Air Handler |
| Series | Olympus 4th Gen Air Handlers |
| Tonnage | 1 |
| Max Coverage Area | Up to 550 |
| Refrigerant | R-454B |
| Voltage | 208/230 V |
| Phase | 1 |
| Mount Type | Wall |
| Color | White |
| Unit Dimensions | 11.81"H x 33.74"W x 9.09"D |
| Shipping Weight | 29.32 lb |
| Parts Warranty | 5-Year |
Compliance & Shipping Notices
- WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Shipping restrictions apply in: GU, PR, VI
Warranty Coverage
5-Year
Professional Installation Required
Certified HVAC technician installation ensures optimal performance, safety compliance, and full warranty protection.
Important: Check state and local codes and ordinances before purchasing. Product availability and compliance requirements may vary by region.