{HEAD ~ This invention} relates to {TAIL ~ a device} for changing the temperature of a room and more specifically to a control system for 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 
{ HEAD ~ This invention } relates to { TAIL ~ a device } for changing the temperature of a room and more specifically to a control system for 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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