Patent ID: 6401466
Filing Date: 2002-06-11
Classification: F25B,F25D

Abstract:
An apparatus for monitoring, indicating and controlling conditions of a refrigeration system having a refrigerated compartment, a door for accessing the refrigerated compartment, an interior light source for illuminating the interior of the compartment and a fan and coolant valve arrangement for refrigerating the compartment comprising:a door switch for detecting an open or closed condition of the door to the refrigerated compartment; a light relay for providing power to the interior light source of the compartment in an activated state and for terminating power to the light source in a deactivated state; and a microprocessor electrically connected with said door switch and said light relay for activating said light relay when said door switch detects a door open condition, said microprocessor including an interior light timing algorithm for deactivating said light relay after a predetermined delay when said door switch detects a door closed condition.