The microprocessor-based HVAC control system detects sensor faults by comparing thermistor readings with predetermined extreme values, indicative of sensor fault. The system automatically selects the appropriate combination of automatic/preset modes of operating key system components such as the expansion...http://www.google.fr/patents/US5630325?utm_source=gb-gplus-shareBrevet US5630325 - Heat pump motor optimization and sensor fault detection
Heat pump motor optimization and sensor fault detection
