MRCOOL DIY 5th Gen 18,000 BTU 208-230V Ductless Mini-Split Heat Pump Complete Kit, 22.5 SEER2, R-454B DIY-18-HP-WM-230D25-O
MRCOOL DIY 5th Gen 18,000 BTU 208-230V Ductless Mini-Split Heat Pump Complete Kit, 22.5 SEER2, R-454B DIY-18-HP-WM-230D25-O
- 18,000 BTU/h cooling, 18,000 BTU/h heating
- 22.5 SEER2 | 13.7 EER2 | 11.5 HSPF2
- Rated for spaces up to 800 sq. ft.
- Voltage: 208/230V, 1-phase, 60 Hz
- Manufacturer part number DIY-18-HP-WM-230D25-O
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Overview
The MRCOOL DIY-18-HP-WM-230D25-O is a ductless mini-split system from the MRCOOL DIY 5th gen Single-Zone Mini-split Bundle line. It delivers 18,000 BTU/h of cooling and heating capacity. MRCOOL rates its efficiency at 22.5 SEER2, 13.7 EER2 and 11.5 HSPF2. It uses R-454B refrigerant and runs on 208/230V single-phase power. MRCOOL rates it for spaces up to 800 sq. ft.
A ductless mini-split heats and cools a room or zone without ductwork: an outdoor condenser connects to an indoor air handler through a small wall penetration, and the inverter compressor adjusts its speed to hold temperature.
Highlights
- Gold Fin® coated condenser coil for corrosion resistance
- Quick Connect® refrigerant connections with pre-charged lines, so no vacuum pump or brazing is needed
- DIYPRO® cable replaces electrical conduit and protects the wiring outdoors
- Voice control through Amazon Alexa and Google Assistant
- Control from the MRCOOL SmartHVAC app on iOS and Android
- Follow Me® mode senses temperature at the remote for comfort where you sit
What's Included
- Condenser
- Air Handler
- DIY® Quick Connect® Line Set
- DIYPRO® Cable
- Remote
Installation
MRCOOL designs this product for do-it-yourself installation. Read the installation manual before you start, and check local electrical code and permit requirements.
Specifications
| Model | DIY-18-HP-WM-230D25-O |
| Series | DIY 5th gen Single-Zone Mini-split Bundle |
| Cooling Capacity (BTU/h) | 18,000 |
| Heating Capacity (BTU/h) | 18,000 |
| Nominal Tonnage | 1.5 |
| SEER2 | 22.5 |
| EER2 | 13.7 |
| HSPF2 (Region IV) | 11.5 |
| HSPF2 (Region V) | 8.5 |
| Zone Capacity | 1 |
| Max Coverage Area (sq. ft.) | 800 |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Frequency (Hz) | 60 |
| Minimum Circuit Ampacity (A) | 18 |
| Max Fuse / Breaker (A) | 20 |
| Refrigerant | R-454B |
| Refrigerant Charge (oz) | 44.8 |
| Inverter | DC |
| Compressor Type | Rotary |
| Sound Level (dBA) | 58.5 |
| Sound Level, Low (dBA) | 19 |
| Sound Level, High (dBA) | 54.5 |
| Line Set Length (ft) | 25 |
| Max Line Set Length (ft) | 98.4 |
| Liquid Line Size (in) | 1/4 |
| Suction Line Size (in) | 1/2 |
| Remote Control Included | Yes |
| Wi-Fi Compatible | Yes |
| App Control | Yes |
| Mount Type | Wall |
| Color | White |
| Certifications | ENERGY STAR Certified, AHRI Certified, UL Listed, ETL Listed |
| Parts Warranty | 5 years |
| Compressor Warranty | 7 years |
More Documents
Key features
- 18,000 BTU/h cooling, 18,000 BTU/h heating
- 22.5 SEER2 | 13.7 EER2 | 11.5 HSPF2
- Rated for spaces up to 800 sq. ft.
- Voltage: 208/230V, 1-phase, 60 Hz
- Manufacturer part number DIY-18-HP-WM-230D25-O
Documents & downloads
Certifications
Warranty
Parts Warranty: 5 years Compressor Warranty: 7 years Coverage terms, registration and installation requirements are set by MRCOOL; see the MRCOOL warranty document for this model.

