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VTF: Variable Temperature and Flow (For Water and Air)
YORK VTF is a full DC inverter water ecosystem with chiller outdoor unit, fan coil indoor units, thermostats and integrated system operational smart controls.
York VTF covers VRF and VWF:
It is the full DC inverter refrigerant system within the VTF outdoor unit which performing variable refrigerant flow;
It is the smart auto-running hydraulic circulation within the VTF system which performing variable water flow thru the built-in switching on/off or inverter pump kit;