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4.13.1 Supply cables and external connections
passage
All the cables to be connected to the burner should be routed
through cable grommets. See Fig. 30.
Cable grommets can be used in different manners; for example:
1
Single-phase power supply
2
Consent/safety
3
Minimum gas pressure switch
4
Gas valve leak detection control kit
5
Gas train
6
Available
7
Available
Cable grommets used in the factory:
A
Air servomotor
B
Maximum gas pressure switch
C
Gas servomotor
D
Rpm sensor
After carrying out maintenance, cleaning or
checking operations, reassemble the cover and
all the safety and protection devices of the burner.
4.14
Motor cable shield
It is important to shield the motor cable 1) as indi-
cated in Fig. 31.
WARNING
1
Key (Fig. 31)
1
Power supply cable (from the inverter)
2
Single-phase power supply cable
3
Connecting cable between the inverter and the REC 37...
electronic cam
Installation
2
31
GB
6
D
1
2
3
The connection from the inverter to the REC 37...,
electronic cam, must be performed as indicated
in 3)(Fig. 31).
WARNING
20209583
7
5
4
Fig. 30
D12115
3
Fig. 31
20205886
A
C
B
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