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SEPARATED AIR-COOLED HEAT PUMP TYPE AIR-CONDITIONING MACHINE
SEPARATED AIR-COOLED HEAT PUMP TYPE AIR-CONDITIONING MACHINE
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机译：分离式风冷热泵式空调机
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摘要
PURPOSE:To prevent abnormal stopping upon starting under high load of heating even when a pipeline between an indoor unit and an outdoor unit is long by a method wherein a discharging gas injection means is provided in a separated air-cooled heat pump type air-conditioning machine. CONSTITUTION:When an indoor unit suction air temperature is higher than a predetermined temperature upon starting heating, a solenoid valve 11 for a discharging gas injection means is operated by a control means 15 for a several minutes after starting whereby the overshoot of a discharging temperature is eliminated substantially and the operation is shifted into safe operation without arriving at the set temperature of a temperature switch 13 for protacting a compressor. When the pressure of a pressure switch 12 arrives at a set value in accordance with the increase of a discharging pressure during stationary heating or cooling operation, the solenoid valve 11 for the discharging gas injection means is operated by the control means 15 to suppress the increase of the discharging pressure and the discharging temperature whereby an unit can be operated stabilizedly.
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