Installation
23
20160778
GB
4.10.2 Supply cables and external connections
passage
All the cables to be connected to the burner are fed through the
grommets. See figure on the right.
The use of the cable grommets can take various forms.
By way of example we indicate the following mode (according to
UL795
):
1 three phase power supply with
1
/
2
inch cable grommet;
2 single
phase
power
supply and other devices with
1
/
2
inch cable
grommet.
3 Available: consents/safety, minimum gas pressure switch, gas
valves and other devices with
3
/
8
inch cable grommet.
Cable grommets used in factory:
A - Fan motor
B - Maximum gas pressure switch
C - Air/Gas servomotor
A
2
1
Z
Z
3
3
3
3
3
B
C
1
2
A
3
3
Fig. 21
20161057
WARNING
The control panel is in compliance with UL508A.
After carrying out maintenance, cleaning or check-
ing operations, reassemble the hood and all the
safety and protection devices of the burner.
