This MRCOOL DIY 5th Gen multi-zone mini-split heats and cools two rooms from one 18,000 BTU condenser. It includes two 12,000 BTU ceiling cassette air handlers. It is a heat pump, so it can run in reverse and pull heat from the outdoors in heating mode. It has a DC inverter, a Gold Fin condenser and a 100% sealed system, and it uses R-454B refrigerant.
The DIY design needs no special tools or training to install. It uses pre-charged Quick Connect line sets, and the No-Vac Coupler can extend the line set length. The cassettes sit out of sight and can be recessed between joists on 16-inch centers, including pre-manufactured I-joists. They need no ductwork or wall space. The Elevation function lowers the filter panel for easy filter maintenance.
The system can be controlled from the Smart HVAC smartphone app. The app also lets you set schedules, temperature ranges and operating modes. It works with Amazon Alexa and Google Home for voice control. The cassettes offer quiet operation and multiple operating modes, and the system provides low ambient cooling.
- Model
- DIY-MULTI3-18HP230D-O (condenser)
- Series
- DIY 5th Gen Multi-Zone Mini-splits
- Capacity
- 18,000 BTU condenser
- Zones
- 2 (12K + 12K)
- Air handlers
- 2 ceiling cassettes, 12,000 BTU each
- Condenser capacity
- Supports up to 3 air handlers
- Voltage
- 230V
- Refrigerant
- R-454B
- Functions
- Heating and cooling (heat pump)
- Cassette install
- Fits between joists on 16-inch centers, including I-joists