This VRF System control wiring is for a VRF VRV Heat Recovery System with single port branch selector boxes. The control wiring is very simple, it's basically two 18 gauge wires that go from the thermostat to the fan coils (Wire #1), so that each zone will have a wire from the thermostat to the fan coil.And then from the Indoor VRF Fan Coil to the single-port branch selector box (Wire #2), that will be a separate wire. Then the branch selector boxes are daisy chained together. So, you can just run one continuous wire jumping from box to box (Wire #3). You don’t have to run a homerun from each box separately to the outdoor unit. They daisy chain from each other in one long chain to the outdoor unit (Wire #4). And then from the VRF VRV outdoor unit to the control panel.
#VRFCONTROLWIRING
#VRVCONTROLWIRING
#VRFOUTDOORWIRING
