| 摘要 |
PURPOSE:To reduce the operation time of a compressor by raising the off-point temperature of the compressor using a variable resistor only within a specified move range of a temp lever and closing a water cock within the corresponding range. CONSTITUTION:This air ventilator is provided with a thermo device 40 which functions as a neutral role with respect to temperature control. An ever sensor 41 which senses the cooling temperature which is blown off from an evaporator 19, driving circuit 43 of a compressor 35, circuit 43 containing an air control switch A/C which performs ventilation, and a variable resistor 45 with a circuit 45 in which a resistance value varies depending upon a temp lever 3 are connected. The temp lever 3 forms a pin 48 so that a circle can be depicted at its center. When the actuation of the same lever 3 is located between the full cooling and range l, an arc lever 49 which turns on the contractor 51 of a vacuum switch 50. By setting the upper switch to ON, an electromagnetic valve 53 is opened and a water cock 55 is closed. Besides, the electromagnetic valve 53 is opened by setting the upper switch to ON. |
