20034064
12
Technical description of the burner
4.9 Description of panel board
1 Terminal strip for kits
2 Relay outlet - clean contacts
3 Ignition transformer
4 Bracket for mounting the power regulator RWF40
5 Stop push-button
6 Dial for off - automatic - manual
7 Power dial for increase - decrease of power
8 Start enabled light
9 Motor thermal cutout tripped warning light
10 Signal light for burner failure and lock-out reset button
11 Control box
12 Star-powered/delta-powered starter
13 Timer
14 Air pressure switch
15 Main supply terminal strip
16 Entry for power cables and external leads
17 Plug-socket maximum gas pressure switch
18 Auxiliary circuits fuse
19 Servomotor plug/socket
20 Plug-socket valve /Pump motor
21 Fan motor thermal cut-out
22 Pump motor contactor and thermal cut-out
23 Plug-socket flame sensor
NOTE
Two types of burner failure may occur:
Control box lock-out: if the control box 11) (Fig. 6) push-
button (red led) and the reset button 10) (Fig. 6) light up, it
indicates that the burner is in lock-out.
To reset, press the pushbutton 10) (Fig. 6).
Motors trip: release by pressing the push button on ther-
mal.
4.10 Burner equipment
Thermal screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. 1
Screws to secure the burner flange to the boiler:
M 18 x 70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. 4
Spacers (see Fig. 15). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. 2
Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. 1
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. 1
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