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3.9
Electrical panel description
11
20141383
4
18
21
20
1
Electrical control box
2
ON/OFF selector
3
Output regulator
4
Earth terminal
5
Supply cables and external connections passage. See section
"Electrical wiring" on page 25
6
Bracket for applying the kits
7
Main terminal supply board
8
Relay with clean contacts for signalling the burner is in lockout
9
Relay with clean contacts for signalling the burner is operating
10 Auxiliary circuits fuse (includes a spare fuse)
11 Air pressure switch
12 Ignition transformer
13 Air filter pressure switch
14 Operator panel with LCD display
15 Light signalling burner lockout
16 Reset button
17 Direct start up line contactor
18 Relay with clean contacts for "Warning air filter" remote signal
terminal board
19 Thermal relay (with RESET button)
20 Filter pressure switches circuits fuse (includes a spare fuse)
21 Filter pressure switch circuits relay
22 Air filter signals
23 Local remote
20140257
Technical description of the burner
6
13
6
5
1
2
5
9
8
12
6
24 Alarm silence
25 Power ON
26 Call for heat
27 Alarm
28 Ignition ON
29 Fuel ON
GB
4
3
20141384
6
3
3
3
6
7
Fig. 6
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