Integrated furnace control

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control

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236 1E, F24D 500

Patent

active

052715566

ABSTRACT:
An HVAC controller including a first input; a second input; first means, responsive to a first signal received on the first input, for generating a first mode of operation; second means, responsive to a second signal received on the second input, for generating a second mode of operation; and third means, responsive to a third signal received substantially simultaneously on the first and second inputs, for generating a third mode of operation.

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patent: 5076780 (1991-12-01), Erdman

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