39
Alpha InTec² 26E, 30CE and 35CE - Component Replacement
1 Boiler drain point
2 DHW heat exchanger
3 Gas valve
4 DHW temperature sensor
5 Mains cold water temperature sensor
6 Condensate trap
7 DHW flow regulator
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)
14 Flue temperature sensor
15 Burner cover
16 Overheat thermostat
17 Primary heat exchanger
18 Fan
19 Primary pressure switch
20 Automatic air vent
21 Boiler pump
22 Safety valve (3 bar)
23 3-way valve (motorised)
24 By-pass
25 Safety valve operation indicator
Fig. 7.1
2
1
11
10
14
15
16
17
18
19
20
21
22
23
24
25
3
4
5
6
7
8
9
12
13
F A
7 COMPONENT REPLACEMENT
To ensure correct and safe operation of the appliance, it is essential that any worn or failed components are replaced with
only genuine Alpha spare parts. Use of non-genuine Alpha spares could invalidate your warranty and may pose a potential
safety hazard.
It is the law that any service work must be carried out by a competent person, i.e. Gas Safe registered boiler engineer.
Warning: Before replacing any boiler components, isolate the electrical supply and close the boiler gas service cock. Allow
the boiler to cool.
Always test for gas tightness before and after replacing any gas carrying components or disturbing any gas connections.
Always carry out electrical system checks i.e. Earth Continuity, Resistance to Earth, Short Circuit and Polarity with a suitable
meter after servicing.
Check the operation of the boiler. (Refer to Sections 5.5 and 5.6). Ensure that all the controls are returned to their original settings.
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