The boiler adopts an environmentally friendly combustion method - full premixed combustion, and the gas and air are precisely adjusted and premixed in advance to ensure more complete combustion.
The boiler adopts a double-drum longitudinal "D" type arrangement structure; water, steam or steam-water mixture flows in the pipe; flame burns and flue gas flows outside the pipe, forming extremely fast steam-water.
Boiler is satisfied Fan and pump overrun continue to dissipate residual heat (over run time will vary) Boiler returns to standby mode Please note: The above however if
· The boiler involves Otherwise the general advice is to open the blowdown valve closest to the boiler first and close it last with the actual drainage/blowing down happening from the valve furthest from the boiler
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