| 摘要 |
PURPOSE:To enable to change the capacity of a test run device with one touch without requiring replacement of a capillary tube and adjustment of a throttle of an expansion valve, by changing the blower cability of a blower with a capacity change mechanism according to the capacity of an outdoor unit. CONSTITUTION:An outdoor unit 14 is connected removably to a test run device 1, a coolant flows to a condenser 18, capillary tube 9 and evaporator 3 in this order with the operation of a compressor 17 in the outdoor unit 14 for normal refrigerating cycle operation. An induction motor 5 constituting a blower 4 provided opposingly with the evaporator 3 is connected to an electric circuit 12 and the input voltage is changed with the operation of a variable transformer 13 constituting the capacity variable mechanism. To the outdoor unit 14 with different capacity, the variable ransformer 13 is operated according to the capacity of the outdoor unit 14 to change the capacity of the test run device 1. |
