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The **5th Generation MRCOOL DIY Mini Split 18k BTU 22.5 SEER2 Ductless Heat Pump & AC System** delivers **powerful heating and cooling** for spaces between **750 - 900 sq ft**. Featuring **Energy Star certification**, AHRI listing, and **UL certification**, it ensures **superior climate control year-round**.
Designed for **efficiency and DIY installation**, this MRCOOL system includes **patented Quick Connect Pre-Charged Line Sets**, allowing for **easy setup without specialized training**. Equipped with **smart controls, auto-restart, and anti-mildew function**, it offers **maximum convenience and reliability**.
This Bundle Includes
Specifications:
| General Product Information | |
|---|---|
| Model | DIY-18-HP-WM-230D25-O |
| UPC | 840255588553 |
| AHRI Number | 216032545 |
| Configuration | Wall Mounted |
| Bundle Avg Coverage Area | 750 - 900 Sq Ft |
| Bundle Cooling Capacity | 1.5 Ton |
| Bundle Cooling Efficiency (SEER2) | 22.5 |
| Heat Pump Efficiency (HSPF2) | 11.5 |
| Series | DIY |
| Zones | 1 |
| Popular Applications | Game Room, Garage, Guest Room, Man Cave, Server Room, Sunroom |
| Region Compatibility | Nationwide |
| California Residents | See Prop 65 WARNING |
| Heat Pump Condenser (Model DIY-18-HP-C-230D25-O) | |
|---|---|
| Model | DIY-18-HP-C-230D25-O |
| UPC | 840255586962 |
| AHRI Number | 216032545 |
| Product Height (in) | 26.5 |
| Avg Coverage Area | 750 - 900 Sq Ft |
| Product Length (in) | 13.46 |
| Compressor | Inverter |
| Product Width (in) | 35.04 |
| Cooling Capacity | 1.5 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Max Overcurrent Protection | 20 amps |
| Weight (lbs) | 114.200000 |
| Refrigerant | R-454b |
| Cooling Efficiency (SEER2) | 22.5 |
| Series | DIY |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | 5 Year Parts, 7 Year Compressor |
| Region Compatibility | Nationwide |
| Wall Mounted Air Handler (Model DIY-18-HP-WMAH-230D25-O) | |
|---|---|
| Model | DIY-18-HP-WMAH-230D25-O |
| UPC | 840255587044 |
| Product Height (in) | 13.19 |
| Configuration | Wall Mounted |
| Product Length (in) | 8.9 |
| Air Flow Direction | Horizontal |
| Product Width (in) | 42.52 |
| Blower Motor | Variable Speed |
| Cooling Capacity | 1.5 Ton |
| Electrical Phase | 1-Phase |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Max Overcurrent Protection | 20 amps |
| Weight (lbs) | 54.010000 |
| Refrigerant | R-454b |
| Series | DIY |
| Suction Line Size | 1/2 inch |
| System Application Type | Ductless Split Systems |
| Voltage | 240 |
| Warranty | 5 Year Parts, 7 Year Compressor |
| Extended Labor Warranty (Model DMS1Y4+000125) | |
|---|---|
| Model | DMS1Y4+000125 |
| Weight (lbs) | 0.000000 |
Resources
- DIY5 Quick Start Guide
- DIY5 Single Zone Customer Brochure
- DIY5 Single Zone Installation Manual
- DIY5 Warranty Sheet
- Mini-Split Remote Control Owner's Manual
What’s Included
- MRCOOL DIY-18-HP-C-230D25-O
- MRCOOL DIY-18-HP-WMAH-230D25-O
- MRCOOL DMS1Y4+000125
- Owner Manual
- Lifetime Tech Support
Warranty
- Limited Lifetime Compressor*
- 7 years unit replacement (compressor)**
- 5 years parts














