Create personalized comfort in two separate rooms with the MRCOOL DIY 5th Gen Multi-Zone 18K BTU Ductless Mini Split Heat Pump System. Featuring one 6,000 BTU air handler and one 9,000 BTU air handler, this system is designed to efficiently heat and cool multiple spaces while giving you the flexibility to control each room independently.
Powered by an 18,000 BTU outdoor condenser, this high-efficiency system delivers up to 23.9 SEER2 performance, helping reduce energy consumption without sacrificing comfort. The 6K air handler is suitable for smaller areas of approximately 200 square feet, while the 9K unit can effectively condition spaces up to about 400 square feet, depending on insulation, ceiling height, climate, and other factors.
Unlike traditional HVAC systems, this ductless heat pump provides year-round comfort by cooling in the summer and extracting heat from the outdoor air during colder months. Whether you're upgrading a home office, bedroom, garage, or addition, this system offers a practical solution without the expense of ductwork.
One of the biggest advantages of the MRCOOL DIY Series is its homeowner-friendly installation. The included pre-charged Quick Connect® line sets come filled with environmentally responsible R-454B refrigerant, eliminating the need for vacuum pumps, specialized HVAC tools, or professional refrigerant charging. This can significantly reduce installation costs while making setup more accessible for experienced DIYers.
For added peace of mind, the system is backed by a 7-Year Compressor Warranty and a 5-Year Parts Warranty from the manufacturer.
Key Features
- DIY-friendly installation design
- Pre-charged Quick Connect® line sets
- Independent temperature control for two zones
- High-efficiency DC inverter technology
- Factory-sealed refrigerant system
- Gold Fin® condenser coating for added durability
- Eco-conscious R-454B refrigerant
- Smartphone control through the MRCOOL Smart App
- Follow Me® temperature sensing technology
- Low ambient cooling capability
- Quiet and energy-efficient operation
The MRCOOL DIY 5th Generation Dual Zone System makes it easier than ever to enjoy customized comfort in multiple rooms while avoiding the high cost of traditional HVAC installation.
Specifications
| Specification |
Details |
| Brand |
MRCOOL® |
| Series |
DIY® 5th Generation Multi-Zone Mini Splits |
| Model Number |
DIY-MULTI3-18HP230D-O |
| GTIN |
840255587617 |
| UPC |
840255587617 |
| Product Description |
18K DIY® 5th Generation 3-Zone Multi-Zone Mini Split Condenser |
| Color |
White |
Performance Specifications
| Specification |
Details |
| Cooling Capacity |
18,000 BTU |
| Heating Capacity |
18,000 BTU |
| System Capacity |
1.5 Ton |
| Zone Capacity |
Up to 3 Zones |
| SEER2 Rating |
23.9 |
| EER2 Rating |
13.0 |
| HSPF2-4 Rating |
10.0 |
| HSPF2-5 Rating |
7.8 |
| Sound Level |
60 dBA |
| Inverter Technology |
DC Inverter |
| Compressor Type |
Rotary |
Electrical Specifications
| Specification |
Details |
| Voltage |
208/230V |
| Phase |
1 Phase |
| Frequency |
60 Hz |
| Minimum Circuit Ampacity (MCA) |
16 Amps |
| Maximum Fuse Breaker |
20 Amps |
Refrigerant Information
| Specification |
Details |
| Refrigerant Type |
R-454B |
| Refrigerant Charge |
61.73 oz |
Features
| Feature |
Included |
| Fan Only Mode |
Yes |
| Quiet Mode |
Yes |
| Auto Cool |
Yes |
| Wi-Fi Enabled |
Yes |
| Smartphone App Control |
Yes |
| Compatible with iOS |
Yes |
| Compatible with Android |
Yes |
| Smart Home Integration |
Yes |
Certifications
| Certification |
Status |
| UL Listed |
Yes |
| ETL Listed |
Yes |
| ENERGY STAR® Certified |
Yes |
| AHRI Certified |
Yes |
Warranty Coverage
| Warranty Type |
Coverage |
| Parts Warranty |
5 Years |
| Compressor Warranty |
7 Years |
Product Dimensions & Weight
| Measurement |
Value |
| Width |
35.04 in |
| Height |
26.50 in |
| Depth |
13.46 in |
| Weight |
101.63 lbs |
Shipping Dimensions
| Measurement |
Value |
| Width |
40.55 in |
| Height |
29.53 in |
| Depth |
17.24 in |
| Shipping Weight |
109.57 lbs |
Compliance & Safety Information
| Item |
Status |
| Contains Batteries |
Yes |
| Contains Electronics |
Yes |
| Contains Chemicals |
Yes |
| Contains Aerosol |
Yes |
| Contains Compressed Gas |
Yes |
| California Proposition 65 Warning |
Yes |
Information & Guides
Installation Manual
Brochure
Service Manual
Remote Manual
Accessory Manual
Warranty
AHRI Cert
Energy Guide
