초록 ▼

A method of controlling an HVAC system includes measuring environmental and/or physical parameters associated with the controlled space, and making operational decisions based on those parameters. Control apparatus is also provided comprising input circuitry receiving environmental information and o

A method of controlling an HVAC system includes measuring environmental and/or physical parameters associated with the controlled space, and making operational decisions based on those parameters. Control apparatus is also provided comprising input circuitry receiving environmental information and output circuitry for controlling an HVAC system. Processing circuitry in the controller configures the output circuitry based at least in part on the signals received on the input circuitry.

대표청구항 ▼

[ What is claimed is:] [1.] An energy recovery apparatus in an environmental control system, said environmental control system comprising:a controlled space having an ambient temperature;a thermostat within said controlled space, said thermostat having an output signal for issuing calls for environm

[ What is claimed is:] [1.] An energy recovery apparatus in an environmental control system, said environmental control system comprising:a controlled space having an ambient temperature;a thermostat within said controlled space, said thermostat having an output signal for issuing calls for environmental change;a plurality of energy consuming components which alter one or more characteristics of air to be supplied to said controlled space;a supply air fan coupled to ventilate said controlled space;a temperature sensor located to sense a temperature of said controlled space, said temperature sensor having a output signal representative of the temperature in said controlled space;said energy recovery apparatus comprising:a microprocessor coupled to said temperature sensor and said thermostat, wherein said microprocessor is configured to turn on at least one of said energy consuming components and said supply air fan in response to a call for environmental change from said thermostat, and wherein said microprocessor is configured to turn off said at least one of said energy consuming components while leaving said supply air fan operational when said call for environmental change is still pending and when said output signal from said temperature sensor indicates that said ambient temperature is outside a predetermined limit.