Heating and cooling air conditioner circuit

(1) Turn on the power supply for the refrigeration function. Turn the temperature control switch ST to the limit point, and then turn the main switch to the "strong wind" or "weak wind" position,
that is, the Sl or S2 contact is connected, and the fan motor starts. Connect the hot and cold switch S2 to the "cooling" point, and turn the main control switch to the "high cooling" or "low
cooling" point to start the compressor for cooling and cool down the room.
    (2) Heating function: Turn the hot and cold switch S2 to the "heating" point and turn on the electric heater circuit . When the electric heater starts to generate heat, the
heating and heating functions can be realized.
    (3) If the ventilation function is only used for ventilation, just turn on the ventilation direction switch Sl to make the wind direction motor work. .