Thermostat with integral means for detecting out-of-phase connec

Details Thermostat with integral means for detecting out-of-phase connec Thermostat with integral means for detecting out-of-phase connec

1988-09-22

1990-02-06

Ford, John

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

165 26, 165 27, 236 94, 361 35, 361 91, G05D 2300

Patent

active

048982296

ABSTRACT:
A low-voltage space thermostat for controlling operation of a heating and cooling system is provided with integral circuit means for detecting the existence of an unacceptably high voltage potential between two wiring terminals therein. Such a high voltage potential exists when the power source in the system comprises two transformers connected out of phase with each other.

REFERENCES:
patent: 3093771 (1963-06-01), Carl et al.
patent: 4739436 (1988-04-01), Stefani et al.

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