FHW - 4 HVAC Systems Manual Fire Normal Close Air Smoke Damper
1.70 ℃ or 280 ℃ temperature automatic switch
2. Fire Center electronically controlled shutdown
3. Manually shut down
4. Manual Reset
5. When closed, one or two pairs of contacts output signal.
If there is no note, it only output one contact signal.
6. When round duct size ≥630mm, can choose square round
electronically controlled dampers
7.When the five-speed manual adjustment valve open,
control its ventilation.