MRCOOL
MRCOOL® 12k DIY 5th Generation Mini-Split Condenser 115v
1 Ton | SEER2 23.5 | R-454B | 115V
- 12000 BTU cooling capacity
- Up to 23.5 SEER2 rated efficiency
- Rotary compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
Installing your own HVAC system might sound overwhelming, but the 5th Generation MRCOOL® DIY® 12k BTU 23.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser makes it simple and achievable. Designed specifically for easy installation, this system can efficiently heat or cool areas between 350 and 500 square feet—no professional tools or HVAC experience required.
Thanks to the 25-foot pre-charged Quick Connect® line set filled with R-454B refrigerant, setup is straightforward and doesn’t require vacuuming. It’s a cost-saving, do-it-yourself solution engineered for safety and simplicity.
You can control the system in multiple ways: use the included remote, the SmartHVAC app on iOS or Android, or voice commands via Amazon Alexa and Google Assistant. The built-in Follow Me® feature detects the temperature near the remote, adjusting output to match your location. For coastal homes, the Gold Fin® condenser coating provides rust-resistant protection, ensuring the system performs well over time.
Comfort and energy savings are built in, with modes like Auto, Sleep, and Timer, plus auto-restart after power outages. Once installed, you'll enjoy a full suite of smart and efficient features.
This model also comes with a base warranty that includes 7-year compressor/5-year parts coverage, along with eligibility for the MRCOOL® Care Program. With its advanced tech and user-friendly design, this unit offers both flexibility and long-term peace of mind.
Features
- NEEP ccASHP Listed
- Intertek listed 5031495
- Easy DIY installation
- Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
- Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
- The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
Additional specifications
| UPC | 840255586955 |
|---|---|
| Series | DIY 5th gen Single-Zone Mini-splits |
| Refrigerant charge (oz) | 30.34 |
| Heating capacity (BTU/h) | 12000 |
| HSPF2 (region V) | 7.6 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 18 |
| Max fuse / breaker (A) | 20 |
| Inverter | DC |
| Line set included (ft) | 25 |
| Max line set length (ft) | 82 |
| Aux heater included | No |
| Aux heater available | No |
| Wi-Fi capable | Yes |
| AHRI certified | Yes |
| ENERGY STAR certified | Yes |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 5 |
| Compressor warranty (yrs) | 7 |
| Shipping W x H x D (in) | 36.22 x 27.56 x 16.54 |
| Shipping weight (lbs) | 83.11 |
Documents
- Specification sheet (PDF)
- Installation manual (PDF)
- Owner's 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 Condenser |
|---|---|
| Capacity | 12000 BTU |
| Tonnage | 1 Ton |
| Compressor / Stages | Rotary |
| SEER2 | 23.5 |
| EER2 | 12.5 |
| HSPF2 | 10.2 |
| 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) | 30.12 x 21.85 x 11.93 |
|---|---|
| Weight | 65.48 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.
Make sure it is the right size, and that you have the rest of it
Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.
Still deciding on the right equipment?
Our HVAC specialists can help you confirm sizing and compatibility before you buy.
