MRCOOL
MRCOOL DIY 5th Gen - R454B - 12K Hyper Heat BTU 230V Condenser w/ 25ft Install Kit
1 Ton | SEER2 23.5 | R-454B | 208/230V
- 12000 BTU cooling capacity
- Up to 23.5 SEER2 rated efficiency
- Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
The MRCOOL® DIY® 12K BTU 208/230V Hyper Heat 23.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser delivers powerful, high-efficiency climate control with simple do-it-yourself installation—no special tools, training, or professional assistance required. It’s ideal for heating and cooling spaces between 350–550 sq. ft., and is compatible with both our sleek wall-mounted air handlers and the low-profile DIY® OuttaSight® Ceiling Cassette.
Installation is fast and straightforward thanks to the 25-foot QuickConnect® line set, filled with environmentally-friendly R-454B refrigerant—eliminating the need for vacuuming or handling refrigerant. The included DIYPRO® cable enhances system protection, replacing traditional electrical conduit to guard against weather, pests, and yardwork damage.
Enjoy flexible control with multiple options: the included remote, the SmartHVAC app for iOS and Android devices, or voice control through Amazon Alexa and Google Assistant. The corrosion-resistant Gold Fin® condenser coating is designed for durability, making it ideal for both inland and coastal environments.
This system is loaded with smart features, including Auto-Restart to maintain continuity of comfort after power loss, a programmable Timer to correspond to your schedule, and the Sleep function, which increases efficiency while you sleep.
For peace of mind, the unit comes standard with a 7-year compressor and 5-year parts warranty with eligibility for the MRCOOL® Care Program. Enjoy dependable, hassle-free comfort year-round with The MRCOOL® DIY® 12K BTU Hyper Heat Single Zone Mini Split Condenser.
Additional specifications
| UPC | 840255588102 |
|---|---|
| Series | DIY Hyper Heat |
| Refrigerant charge (oz) | 32.1 |
| Heating capacity (BTU/h) | 12000 |
| HSPF2 (region V) | 8 |
| Airflow (CFM) | 1471.5 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 15 |
| Max fuse / breaker (A) | 15 |
| Inverter | Yes |
| Metering device | EEV |
| Line set included (ft) | 25ft |
| Max line set length (ft) | 75 |
| Max coverage area | 550 |
| Min ambient cooling (F) | -22 |
| Min ambient heating (F) | -22 |
| AHRI certified | Yes |
| ENERGY STAR certified | Yes |
| UL listed | Yes |
| Parts warranty (years) | 5 Years |
| Compressor warranty (yrs) | 7 Years |
| Shipping W x H x D (in) | 36.02 x 24.21 x 14.57 |
| Shipping weight (lbs) | 79.59 |
Documents
- Specification sheet (PDF)
- Installation 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 | 12000 BTU |
| Tonnage | 1 Ton |
| Compressor / Stages | Rotary |
| SEER2 | 23.5 |
| EER2 | 12.8 |
| HSPF2 | 10 |
| Sound Level | 56.5 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 1/4" / Suction 3/8" |
Physical & Certifications
| Dimensions (W x H x D) | 31.69 x 21.81 x 12.99 |
|---|---|
| Weight | 72.31 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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