F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 45/00 (2006.01)
Patent
CA 2354288
A gauge manifold is connectable to the suction and liquid lines of an air conditioning refrigerant circuit and has a built-in charge level calculator into which system manufacturing and capacity data is enterable. Charging data corresponding to the input data is stored within the calculator and automatically utilized in conjunction with ambient temperature and refrigerant pressure levels sensed by the calculator to generate a visual display indicating whether the circuit's refrigerant charge level is acceptable, high or low for the particular unit or system being checked. If the displayed charge level is high or low, the gauge manifold is additionally connected to a pressurized refrigerant canister or recycling drum and a valve portion of the manifold is operated to add or remove refrigerant to the circuit, via the gauge manifold, as necessary until the calculator display indicates that the circuit is properly charged.
Blake Cassels & Graydon Llp
Rheem Manufacturing Company
LandOfFree
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