Timer controlled temperature differential circuit for ventilator control in cellars or rooms with high air humidity, in which series circuit of timer control and analog temperature differential circuit switches load, i.e. ventilator

摘要

The timer controlled temperature differential circuit is intended for ventilator control, with a series circuit of timer control and analog differential temperature circuit which switches load, e.g. ventilator, via a relay. Switching times of timer control are freely programmable, while differential temperature control switches at calibrated temperature difference via temperature-dependent resistors. Both timer and differential temperature control may be separately (de)activated.