54
3044826_201403
Service Manual
1 Switch OFF the boiler, switch OFF the emergency stop switch
2 Close the gas supply valve,
3 Remove the casing and the combustion chamber housing
4 Pull the electrical connections off fan, sensors and electrodes
5 Remove the combustion chamber lid upwards
6 Clean the burner, if required
O
O
7 Clean the heating water heat exchanger
O
O
8 Clean the condensate pan
O
O
9 Clean the mixing chamber, if required
O
O
10 Refill granulate, if a neutralising system is installed
O
O
11 Refill granulate, if a neutralising system is installed
O
O
12 Refill granulate, if a neutralising system is installed
O
O
13 Check the protective anode every two years on enamelled cylinders.
O
O
14 Assemble the equipment
15 Clean and fill the siphon, install and check for tight fit
O
O
16 Descale the DHW heat exchanger, if required
O
O
17 Clean the DHW strainer
O
O
18 Check the expansion vessel in case of water loss
O
O
19 Open the gas supply valve and start the boiler
20 Gas soundness test
O
O
21 Flue gas soundness test
O
O
22 Check the ignition
O
O
23 Check the interaction with control accessories
O
O
24 Flue gas test in emissions test mode
O
O
25 Gross flue gas temperature
°C
°C
26 Ventilation air temperature
°C
°C
27 Net flue gas temperature
°C
°C
28 Carbon dioxide content (CO
2
)
%
%
29 or oxygen content (O
2
)
%
%
30 Carbon monoxide content (CO)
%
%
31 Flue gas loss
%
%
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Overview of the steps to be taken and the maintenance report
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