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Chiller System Components
VRF Control Box
1
DVM Chiller – Control
K1 K2 K3 K4
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HUB PCB communication
Main PCB communication
Communication PCB
FAN PCB communication
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Inverter Controller
EEV's - 4-way valve – oil return
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Hydro Controller
valves – bypass valves
EEPROM
Setting inverter control options
Pressure & Temp sensors
Auto & Manual Addressing
VRF status display
18
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