This invention relates to a device for changing the temperature of a room and more specifically to {HEAD ~ a control system} for {TAIL ~ a device} in which room air is passed through a heat exchanger for heat exchange with a cooling liquid, the cooling liquid being cooled by a refrigerant circuit 
This invention relates to a device for changing the temperature of a room and more specifically to { HEAD ~ a control system } for { TAIL ~ a device } in which room air is passed through a heat exchanger for heat exchange with a cooling liquid , the cooling liquid being cooled by a refrigerant circuit
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