79
EN
4.4
Structure
2
3
1
4
5
6
25
27
28
22
11
26
16
18
11
8
9
10
7
13
12
15
14
17
24
23
22
20
21
19
24
30
31
27
29
4
22
14
33
32
1
Combustion air inlet (optional accessory)
2
Front panel
3
Ignition transformer
4
Gas valve
5
Structure
6
Wheel
7
Water pressure sensor
8
Inspection and cleaning door
9
Return manifold
10
Return sensor (SR)
11
Condensate collection tank
12
Condensate siphon outlet
13
Condensate outlet fitting
14
Smoke outlet fitting
15
Boiler drain valve
16
Boiler return
17
Inspection and cleaning doors
18
Boiler delivery
19
Automatic bleed valve
20
Delivery sensor
21
System delivery manifold
22
Boiler body
23
Top panel
24
Gas supply pipe
25
Control panel
26
Burner
27
Side panels
28
Fan
29
Min. gas pressure switch
30
Flame detection electrode
31
Ignition electrodes unit
32
Safety thermostat
33
Electrical wiring terminal board
Fig. 6
Summary of Contents for ALU PLUS HE 1100
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