Solar air heater with LCD thermostat
LCD thermostat:OS21, OS31, OSB41 standard configuration
LCD thermostat with 2 detectors, can detect the indoor and outdoor temperature, adjust the fan and the temperature automatically. Shows collector temperature, room temperature, fan speed, voltage of pv, etc, with automatic and manual modes.
In automatic mode, only when the exterior temperature is higher than room temperature, the fan can run at full speed, with highest heating efficiency, and most heat absorbed. So all the air blown into the room is higher temperature than the room temperature. When the exterior temperature is lower than room temperature, the fan stops working automatically.
In manual mode, adjust the fan speed, air volume, and heat of the intake air.
Can be installed with an extra tubular ventilator at the outlet, so the system can exhaust the indoor air when the sensor temperature is higher than the set value.
When the room temperature is lower than the set value, the heating ventilator works.
When the room temperature is higher than the set value, the exhausting ventilator works.