F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
341/38
F25B 45/00 (2006.01) B60H 1/00 (2006.01)
Patent
CA 1261427
ABSTRACT OF THE DISCLOSURE An air conditioner charging station includes oil and refrigerant reservoirs, a vacuum pump, and an electronic sequencing unit. A header conduit connected to the reservoirs and vacuum pump is connected to a cross-over conduit, which in turn is connected to conduits extending to the high and low pressure sides of an air conditioner compressor. Electrically operated valves are provided in the cross-over conduit, in a dump conduit connected to the cross-over conduit, and in branch conduits connected to the reservoirs and to the vacuum pump. An over-ride control of the cross-over valve is provided, responsive to the pressure of the high pressure side and an over-ride control is provided for cross-over valve, activated if the ambient temperature is below a predetermined level. An excessively high pressure in the high pressure side causes the closing of the valve in the refrigerant reservoir branch conduit.
516837
Ridout & Maybee Llp
Standard Motor Products Inc.
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