THERMOSTAT WITH INTEGRAL MEANS FOR DETECTING OUT-OF-PHASE CONNECTION OF A TWO-TRANSFORMER POWER SOURCE

摘要

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 terminalstherein. Such a high voltage potential exists when the power source in the system comprises two transformers connected out of phase with each other.