MRCOOL
MRCOOL Olympus 9,000 BTU 3/4 Ton Ductless Mini-Split Wall Mounted Air Handler - 230V/60Hz
O-09-HP-WMAH-230C-O
9,000 BTU · 208/230V · R-454B
Part of Olympus 4th Gen – Air Handlers
- Cooling capacity
- 9,000 BTU0.75 tons
- Room size
- Up to 400
- Power
- 208/230V15A breaker
- Refrigerant
- R-454B
$372.00 each
Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. Professional installation by a licensed HVAC contractor is required for the manufacturer warranty.
Build a multi-zone system with this air handler →
Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.
About this product
Enjoy reliable heating and cooling with the MRCOOL® OLYMPUS ESTAR® 9k Series air handler, designed to deliver year-round comfort for spaces up to 400 square feet—ideal for single rooms, home offices, garages, and more. Its compact size allows for quick and easy installation, making setup a breeze for your installer. Equipped with the MRCOOL® Smart HVAC app, this unit offers convenient Wi-Fi connectivity, letting you control it from your smartphone or tablet, no matter where you are. Prefer a more traditional approach? Use the included remote control for simple access to your preferred settings. Built with efficiency in mind, the unit boasts impressive performance ratings: SEER2 of 25.8, EER2 of 14.9, and HSPF2-4 of 12.5—helping you cut down on energy costs. With multiple indoor fan speeds and whisper-quiet operation at just 47 dB, you’ll barely notice it’s there while enjoying consistent comfort. Now using eco-friendly R-454B refrigerant, this system is better for the environment without compromising on power or performance. You’ll also enjoy versatile control options, including voice command compatibility with Amazon Alexa and Google Assistant. Backed by an industry-leading warranty—including a 7-year compressor coverage and a 5-year parts warranty—the MRCOOL® OLYMPUS ESTAR® 9k Series offers advanced technology, dependable performance, and personalized climate control for years to come.
Documents & manuals
Specifications
| Type | Air handler (indoor unit) — heat pump (heats & cools) |
|---|---|
| Series | Olympus 4th Gen |
| Cooling capacity | 9,000 BTU |
| Nominal size | 0.75 tons |
| Coverage | Up to 400 |
| Sound level | 38/38/33/20.5/19.5 dBA |
| Voltage | 208/230V |
|---|---|
| Phase | 1-phase |
| Min. circuit ampacity (MCA) | 3 A |
| Max. breaker (MOP) | 15 A |
| Wi-Fi / app control | Yes |
| Refrigerant | R-454B |
|---|---|
| Liquid line | 1/4" |
| Suction line | 3/8" |
| Indoor unit / mounting | Wall |
|---|---|
| Dimensions (in) | 33.74 W × 9.09 D × 11.81 H |
| Weight | 23.37 lb |
| Shipping weight | 29.98 lb |
| Color | White |
| Safety listing | UL, ETL |
|---|---|
| Parts warranty | 5 years |
| UPC | 840255587709 |

