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SYSTÈMES ET PROCÉDÉS DE RÉGULATION DU DÉBIT DE GAZ DANS DES SYSTÈMES DE RÉFRIGÉRATION DE TRANSPORT
SYSTÈMES ET PROCÉDÉS DE RÉGULATION DU DÉBIT DE GAZ DANS DES SYSTÈMES DE RÉFRIGÉRATION DE TRANSPORT
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摘要
A transportation refrigeration system includes a transportation refrigeration unit, a gas circuit connected to the transportation refrigeration unit and arranged to connect thereto a split bottle gas supply having a plurality of electric lock-off valves, and a controller. The controller is operably connected to the transportation refrigeration unit and is responsive to instructions recorded on a memory to close the electric lock-off valves of the split bottle gas supply. The instructions also cause to the controller to receive a first measurement of gas pressure in the gas circuit, open a first of the electric lock-off valves of the split bottle gas supply, receive a second measurement of gas pressure in the gas circuit, and determine health of the first electric lock-off valve using the first and second measurements of gas pressure in the gas circuit. Methods of determining health of electric lock-off valves and computer program products are also described.
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