MRCOOL
MRCOOL DIY Select 1st Gen - R454B - 9K BTU 115V Condenser w/ 11ft Install Kit
0.75 Ton | SEER2 17.5 | R-454B | 115V
- 9000 BTU cooling capacity
- Up to 17.5 SEER2 rated efficiency
- Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
The MRCOOL® DIY® Select 9K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser is engineered for true do-it-yourself installation, requiring no specialized tools, prior HVAC experience, or professional labor. Ideal for spare bedrooms, home offices, and other small spaces, it efficiently heats and cools areas up to 400 square feet.
In conjunction with its DIY®-friendly design, the system also delivers strong performance with a 17.5 SEER2 cooling rating and 8.8 HSPF2-4 heating efficiency, providing dependable, year-round comfort while helping reduce energy costs.
Installation is simplified with an 11.5-foot Quick Connect® line set that arrives factory pre-charged with environmentally friendly R-454B refrigerant, eliminating the need for vacuum pumps or refrigerant handling. Most components are included, making setup faster, cleaner, and more accessible for first-time installers.
Comfort control is easy using the included wireless remote or the MRCOOL® Comfort app, which allows temperature adjustments, scheduling, and energy monitoring from anywhere. Compatibility with Amazon Alexa and Google Assistant adds convenient voice control.
On the inside, features like Sleep Mode, Dry Mode, Auto, and programmable scheduling enhance everyday comfort. Meanwhile, a Gold Fin® condenser coating on the outside increases durability, even in humid or coastal environments.
Offering powerful warranty protection, the MRCOOL® DIY® Select 9K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser includes a 2-year compressor warranty and 1-year parts warranty for added peace of mind.
Additional specifications
| UPC | 840255595667 |
|---|---|
| Series | DIY Select |
| Refrigerant charge (oz) | 17.28 |
| Heating capacity (BTU/h) | 9000 |
| HSPF2 (region V) | 6.8 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 17 |
| Max fuse / breaker (A) | 20 |
| Inverter | Yes |
| Metering device | EEV |
| Line set included (ft) | 11.5 ft. |
| Max line set length (ft) | 75 ft. |
| AHRI certified | Yes |
| ENERGY STAR certified | No |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 1 Year Parts |
| Compressor warranty (yrs) | 2 Years Compressor |
| Shipping W x H x D (in) | 36.22 x 27.36 x 16.54 |
| Shipping weight (lbs) | 66.58 |
Documents
- Installation manual (PDF)
- Service manual (PDF)
- Remote manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals 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.
Technical Specifications
Performance
| System Type | Mini-Split |
|---|---|
| Capacity | 9000 BTU |
| Tonnage | 0.75 Ton |
| Compressor / Stages | Rotary |
| SEER2 | 17.5 |
| EER2 | 9.8 |
| HSPF2 | 8.8 |
| Sound Level | 54 dBA |
Electrical & Fuel
| Voltage | 115V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 1/4" / Suction 3/8" |
Physical & Certifications
| Dimensions (W x H x D) | 28.35 x 19.49 x 10.63 |
|---|---|
| Weight | 54.67 lb |
| Color / Finish | White |
Shipping & Delivery
Installation video
Published by MRCOOL. Watch the full walkthrough before you start, and follow the installation manual for this model — the video is a guide, not a substitute for it.
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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