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Title:
AUTOMATIC CONTROLLER FOR HEAT PUMP SYSTEM
Document Type and Number:
Japanese Patent JPS5798740
Kind Code:
A
Abstract:
A microprocessor based heat pump control apparatus having a user-operated system console and a system function controller is provided in which normal operating target temperature settings are automatically converted to an expanded operating temperature range (standby operating mode), having preset upper and lower target temperature settings, in response to predetermined operating conditions within the system. The system function controller is preprogrammed to respond to a predetermined number of invalid data signal communications emanating from the user-operated console to switch into the standby operating mode. Provision is made for the user to insert a standby mode instruction at the user-operated console. Provision is also made for the system controller to enter standby during a power-up sequence when invalid user-inserted volatile data is sensed from storage means used to retain the volatile data during the power-off time period.

Inventors:
KASUTEISU RII SUTANPU JIYUNIA
ROORII RICHIYAADO HERUZOGU
Application Number:
JP16291181A
Publication Date:
June 19, 1982
Filing Date:
October 14, 1981
Export Citation:
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Assignee:
GEN ELECTRIC
International Classes:
F24F11/08; F25B13/00; F25B49/02; F24F11/02; G05D23/19; (IPC1-7): F24F11/02; F25B13/00; F25B49/00



 
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