초록

A controller for an HVAC system incoporates humidity and carbon monoxide measurements in its control of the system. System cycling may be inhibited by high humidity. A portion of the system may be turned off by high carbon monoxide concentration.

대표청구항 ▼

[ What is claimed is:] [1.] An energy recovery apparatus in an environmental control system coupled to a controlled space comprising:an input terminal for receiving a signal indicative of a call for cooling from said controlled space;an output terminal for sending said signal indicative of a call fo

[ What is claimed is:] [1.] An energy recovery apparatus in an environmental control system coupled to a controlled space comprising:an input terminal for receiving a signal indicative of a call for cooling from said controlled space;an output terminal for sending said signal indicative of a call for cooling from said controlled space to portions of an air conditioning unit;a humidity sensor located to sense humidity of said controlled space, said humidity sensor providing an output signal representative of the humidity in said controlled space; anda controller coupled to said humidity sensor and configured to selectively connect and disconnect said input terminal and said output terminal, wherein said controller is configured to maintain said input terminal and output terminal connected when said humidity of said controlled space is greater than a selected level, and wherein said controller is further configured to enable the periodic disconnection of said input terminal from said output terminal when said humidity is less than a selected level.