Mainstream Engineering Corporation

Other

Daniel L Lambert

Robert P Scaringe

Robert Paul Roth

Erik P Thomas

Chad L Carff

Gregory S Cole

Daniel A Staples

A diagnostic monitoring system and method is employed for one or more vapor compression systems such as air conditioners and heat pumps having a compressor, an indoor air handler fan coil and an outdoor condensor. Temperature, voltage and current sensors are provided at the outdoor condensor to determine that at least one vapor compression system is operating properly. Data obtained from the sensors is wirelessly transmitted to a receiving-device for use by the systems' custodian or repair service provider and includes information concerning an occurrence of periods when one or more of the vapor compression systems are operating at an abnormal state.

Web-based, plug and play wireless remote monitoring diagnostic and system health prediction system

Cost-effective remote monitoring diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling

Cost-effective remote monitoring, diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling

A vapor compression thermal control system having at least one electrically powered evaporator fan and an apparatus for preventing compressor overloading apparatus having a sensor that measures temperature of air entering the evaporator. That measured temperature is compared with at least one predetermined temperature setting to activate a predetermined evaporator blower on/off duty cycle when the measured temperature exceeds the predetermined temperature. Alternatively, the apparatus can have a sensor that measures temperature of air being used to cool the condenser, and that measured temperature is then compared with at least one predetermined temperature setting to activate a predetermined evaporator blower on/off duty cycle when the measured temperature exceeds the predetermined temperature. In either case, it is evaporator air flow that is modulated when the system is operated as a heat pump. For liquid cooled evaporators, however the circulation pump instead of the fan is modulated.

Apparatus for crankcase pressure regulation using only ambient air or coolant temperature

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Melbourne, FL, United States of America

Daniel L Lambert