Fitting the burner
Venturi mixing pipe
G
Enriching nozzle in hose
H
115/142 kW
1 mm
7
186 kW
1.6 mm
7
Hose dimensions
mm
7
a
b
c
d
Pressure-jet gas burners 246 to 311 kW
A
-
B
-
+
C
Fig. 25
Air pressure switch 2
A
Air pressure switch 1
B
Gas train
C
Hose dimensions
mm
7
a
b
c
(cont.)
Length in mm
4
190
6
180
6
360
4
420
a
b
c
e
Length in mm
4
190
4
420
4
420
Commissioning, inspection, maintenance
Hose dimensions
mm
7
e
f
g
h
D
E
Boiler door
D
Venturi mixing pipe
E
Hose dimensions
mm
7
d
e
Length in mm
4
420
6
145
6
6
120
d
Length in mm
6
145
2.5
200
50
27