7.2.1
Control box
This operation must be performed with the burner
turned off and mains power disconnected.
DANGER
To remove the control-box from the burner, loosen screw
A)(Fig. 15) and pull towards the arrow.
S7348
Run of the electrical cable (Fig. 15)
1
Grommet
2
Cable clamp
3
Terminal block
4
Clamps for external probe or 2
5
4 pole socket for external probe or 2
6
7 pole socket for burner
N
Neutral
L
Phase
Burner-earth
Lock-out lamp
The photoresistance is fitted directly into the control box (under-
neath the ignition-transformer) on a plug-in support.
S7057
20032184
Electrical system
Fig. 15
nd
stage thermostat
nd
stage thermostat
Ignition transformer
Photoresistance
Fig. 16
18
GB