Holtop ceiling heat recovery ventilation system erv

Functions
– Airflow rate switch (10 speeds)
– Temperature display
– Automatic bypass
– Weekly timer
– Data memory/power to restart
– Automatic defrosting
– Electric heater defrosting (optional)
– Comfortable heating (optional)
– External ON/OFF
– CO2 concentration control
– BMS integration
– Working condition monitor
– Humidity control (optional)
– Free night cooling