Heating and cooling thermostats:

Heating and cooling thermostats

Some thermostats can be used for heating and cooling. The thermostat is shown in Fig. 14-15 such a device. The main element, thermostat is hermetically closed, single-pole magnetic double throw (SPDT) switch. The thermostat element is inserted into the soil contains waiting for heat, magnetic switch, and the room temperature, the thermometer. Base unit contains a fixed cool anticipation and schemes. The thermostat is used with 24 V AC. In this case, a thermostatic element (bimetal) does not allow direct contact with the electric shock. Instead, the expansion of bimetallic leads to a magnet to move. This, in turn, causes the switch to close or open. Fig. 14-16 shows that bimetallic not in the electric circuit.

Heating and cooling thermostats

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Heating and cooling thermostats