Multi-type air conditioner with plurality of distributor able to be shutoff

A multi-type air conditioner comprising:

• an outdoor unit installed outdoors and including a compressor, a four way valve connected to a discharge end of the compressor and configured to guide the refrigerant proper to operation conditions selectively, and an outdoor heat exchanger connected to the four way valve;
• a plurality of indoor units each installed in a room and having an indoor heat exchanger and an electronic expansion valve having one end connected to one end of the indoor heat exchanger;
• a plurality of distributors between the outdoor unit and the plurality of indoor units for improving installation freedom of the plurality of indoor units, and configured to selectively guide refrigerant from the outdoor unit to the plurality of indoor units proper to operation conditions, and to guide the refrigerant passed through the indoor units to the outdoor unit again, each of the distributors distributing the refrigerant to at least two of the plurality of indoor units and having a supercooling device on a pipeline through which the high pressure liquid refrigerant flows therein, the supercooling device configured to sustain a supercooled state of the high pressure liquid refrigerant;
• and
• an ON/OFF valve configured to selectively shut off introduction of the refrigerant into each distributor,
• wherein the ON/OFF valve shuts off the refrigerant into the each distributor when all of the indoor units connected to each distributor are inoperative.