| 摘要 |
An apparatus to aid in the removal of refrigerant from direct expansion air-conditioning systems is herein disclosed. The apparatus enables the manual activation of solenoid valves or check valves typically provided on direct expansion air-conditioning systems. A solenoid valve must be energized to allow complete access to the refrigerant in order to allow complete evacuation of the system. The apparatus is connected to a power source and a plurality of switches enables selection of 120V operation or 24V operation. The apparatus further comprises transformers, fuses, and the like to provide complete protection to the user. Final connection to the solenoid valve is made through the use of a long power lead supplied with alligator clips. The apparatus is housed in a convenient enclosure allowing for easy storage and transportation.
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