| 摘要 |
FIELD: power engineering.SUBSTANCE: conditioner (1) comprising a coolant circuit (10), including a compression mechanism (21), a heat exchanger (23) on the side of a heat source, an expansion mechanism (24) and a heat exchanger (41) on the usage side, and also an electromagnet induction heating device (6), which heats a tube (10f) for coolant and/or an element in thermal contact with coolant, passing via the tube, a control unit (11) and a fan on the side of the heat source. The control unit sets the heating device (6) into the condition of forced shutdown, if any of the conditions specified below is met: the condition, when the difference between the temperature set inside the room and temperature inside the room is less than the specified temperature or the compression mechanism is stopped; and the condition, when low pressure reduction is controlled, high pressure reduction is controlled, inverter outlet tube temperature reduction is controlled, inverter electric current reduction is controlled, pressure difference to compression ratio protection is controlled, inverter electric current/temperature reduction is controlled, or total electric current reduction is controlled, or when status of alarm on gas shortage is active.EFFECT: using the invention will save energy by prevention of operation efficiency drop.3 cl, 7 dwg |
