VRF Outdoor Units
The outdoor unit, or condensing unit, houses inverter driven compressors that ramp up and down to match demand across the whole building. Units can be combined in modules to serve larger loads and sit on a roof, a balcony, or a ground pad. When buying, check the cold climate rating if you plan to heat through a mountain winter, confirm the total refrigerant charge meets code for the smallest occupied room, and plan for snow and wind protection. Most owners buy new because inverter electronics and warranties matter a lot with this equipment.