F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
137/56
F24H 1/00 (2006.01) F16K 17/10 (2006.01) F16K 17/38 (2006.01) F16K 31/385 (2006.01) F24H 9/20 (2006.01)
Patent
CA 1252367
IMPROVED AUTOMATIC CONTROL SYSTEM FOR WATER HEATERS ABSTRACT A system for isolating a pressurized water source from a pressurized hot water tank when a leak or rupture occurs to the tank. The system includes a connecting line attached between a check valve and a control valve with a diaphragm attached to the control valve body to sense the pressure differential between the water source and the connecting line. Upon a leak or a rupture occurring, the diaphragm completely closes the control valve. The check valve does not allow the hot water from the water heater tank to enter the domestic system when a leak or rupture occurs. The system further allowing cold water to enter the tank when a predetermined temperature is reached or exceeded. The system further allowing for make up of water volume loss in the tank during a cooling cycle.
504408
Boals Wayne S.
Gowling Lafleur Henderson Llp
LandOfFree
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