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REGULATION DEVICE HEAVY OIL BT...DSNM-D
Backnozzle thermostat (TRU)
18 ÷ 20 bar
Flame backpressure regulator
(almost less 2 bar than the
pump pressure)
IDENTIFICATION DIAGRAM
1st flame pressure regulator
heating resistance
16
Enter plugs to the regulation screw
10 ÷ 12 bar
1st flame pressure regulator
2nd flame udually opened
electrovalve =
Opened = 1st flame switched
Closed = 1st flame switched
Tie-down point pressure
gauge to get the backpressure
which cause the output
variation for the 1st and 2nd
flame
Pump heating resistance
Enter plug to the 20 ÷ 22 bar
regulation pressure pump
screw
N° BT 8716
on regolator
off regulator
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