49
SUN M20 - M30
GB
KodL MNOOPPQO - RevL SS - TQUQSTQ
4. TECHNICAL DATA AND CHARACTERISTICS
4.1 Dimensions
407
336
414
D
184
341
215
122
265
221
Ø230
Ø170
Ø142
11
130
221
4.2 General view and main components
fig. 12
14
15
17
16
3
8
7
6
5
9
4
18
13
2
1
11
12
10
19
Key
1
Head adjustment screw
2
Transformer
3
Combustion head inspection
cover
4
Plugs for electrical connection
5
Motor
6
Air pressure switch
7
Unit
8
Air adjustment servomotor
9
Fan
10
Ignition electrode
11
Detection electrode
12
Combustion head
13
Gas pressure switch
14
Nozzle
15
Burner flange
16
Screw fixing burner to flange
17
Head gas pressure point
18
Modulating gas valve
19
Air-gas signal tube
fig. 13