Alpha InTec2 25XE Installation And Servicing Instruction page 38

1 N/A
2 Boiler drain point
3 DHW heat exchanger
4 Gas valve
5 DHW temperature sensor
6 Condensate trap
7 DHW flow switch
8 System expansion vessel
9 Air / gas mixer
10 Primary temperature sensor
11 Manual air vent valve
12 Ignition / sensing electrode
13 Test points (air A) - (flue F)
38
Alpha InTec² 25XE and 28XE - Routine Servicing
13 F
11
12
10
9
8
7
6
5
4
3
2
14
15
16
17
18
19
20
21
22
23
24
25
Fig. 6.6
A
Flue temperature sensor
Burner cover
Overheat thermostat
Primary heat exchanger
Fan
Primary pressure switch
Automatic air vent
Boiler pump
Safety valve (3 bar)
3-way valve (motorised)
By-pass
Safety valve operation indicator
14
15
16
17
18
19
20
21
22
23
24
25