27
G
Venturi mixing pipe
H
Enriching nozzle in hose
115/142 kW
7
1 mm
186 kW
7
1.6 mm
Hose dimensions
7
mm
Length in mm
a
4
190
b
6
180
c
6
360
d
4
420
Hose dimensions
7
mm
Length in mm
e
4
420
f
6
145
g
6
50
h
6
120
Pressure-jet gas burners 246 to 311 kW
A
D
E
a
d
e
+
-
-
C
B
b
c
Fig. 25
A
Air pressure switch 2
B
Air pressure switch 1
C
Gas train
D
Boiler door
E
Venturi mixing pipe
Hose dimensions
7
mm
Length in mm
a
4
190
b
4
420
c
4
420
Hose dimensions
7
mm
Length in mm
d
6
145
e
2.5
200
Commissioning, inspection, maintenance
Fitting the burner
(cont.)
5812086
