Riello MB 407/1 Instrucciones De Instalación, Uso Y Mantenimiento página 47

The gas trains shown in Tab. G are prepared in the factory to be
connected in accordance with the electrical diagram shown in
Fig. 8.
Code Model
3970197 MB 412/1 CT RT 20
3970198 MB 415/1 CT RT 30
3970182 MB 420/1 CT RT 30
The gas trains shown in Tab. H are prepared in the factory to be
connected in accordance with the electrical diagram shown in
Fig. 9.
Code Model
3970253 MB 415/1 CT RT 52
3970252 MB 420/1 CT RT 52
Key
PG Min. gas pressure switch
V Valve group V1 - V2
VPS Valve leak detection control device
BN Brown
BU Blue
BK Black
YE Yellow
Installation
VPS
Tab. G
L1
N
B5
T6
T7
T8
20049995
Tab. H
VPS
L1
N
B5
T6
T7
T8
20049994
9 GB
V
PG
2 1
3 1 2 3
BU
BK
BN
V
PG
2 3 1 1 2 3
BU
BK
BN
V1
V2
Fig. 8
V1
V2
Fig. 9
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