3087
6
GB
3.3
GAS TRAIN, (
as
EN 676)
The gas train is supplied separately, for its adjustment see the enclosed instructions.
3.4
GAS TRAIN ELECTRICITY SUPPLY
The gas train’s power cables can be fed to the right or
left of the burner, as illustrated in figure 5.
Depending on the entry point, the cable clamp with
pressure test point (1) and simple cable clamp (2) may
need swapping over.
Consequently, you must make sure:
➤
cable clamp (1) is positioned correctly;
➤
the tube is positioned correctly so that there are no
restrictions likely to impede air flowing to the pres-
sure switch.
WARNING
If necessary, cut the tube to the right size.
3.5
GAS FEEDING LINE
GAS TRAIN
CONNECTIONS
USE
TYPE
CODE
INLET
OUTLET
MB-ZRDLE 410 B01
3970542
Rp 1” 1/4
Flange 3
Natural gas
≤
200 kW and LPG 160
–
345 kW
MB-ZRDLE 412 B01
3970543
Rp 1” 1/4
Flange 3
Natural gas
≤
300 kW
MB-ZRDLE 415 B01
3970582
Rp 1” 1/2
Flange 3
Natural gas
≥
300 kW
2
1
2
1
D7113
Fig. 5
M2
Fig. 6
D5208
1
2
3
M1
5
6
7
4
8
1
– Gas supply pipe
2
– Manual cock (charged to the installer)
3
– Gas pressure gauge (charged to the installer)
4
– Filter
5
– Gas pressure switch
6
– Safety valve
7
– Pressure governor
8
– 1st and 2nd adjusting valve
M1 – Gas-supply pressure test point
M2 – Pressure coupling test point
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