94
3064458_201811
33. Service report
No.
Step
Report item
Report item
Report item
Date
1
Switch OFF boiler, set emergency stop switch to OFF
2
Close gas supply valve
3
Remove front casing
4
Determine level of soiling of heating water heat exchanger (mbar)
5
Check burner
O
O
O
6
If necessary, clean burner and check ignition monitoring electrode
O
O
O
7
Clean heating water heat exchanger
O
O
O
8
Clean condensate pan
O
O
O
9
Check gaskets, if necessary replace gaskets and apply silicone
grease
O
O
O
10
Check neutralisation system if installed, top up with granulate if
required
O
O
O
11
On enamelled cylinders, check protective anode every 2 years
O
O
O
12
Assemble appliance
13
Clean, fill and install trap and check for secure fit
O
O
O
14
Level of soiling of heating water heat exchanger after cleaning
(mbar)
15
Descale DHW heat exchanger if necessary
O
O
O
16
Clean DHW strainer
O
O
O
17
Check expansion vessel and safety valve
O
O
O
18
Fill and vent the system
18
Open gas supply, switch on appliance
19
Gas tightness test
O
O
O
20
Flue gas tightness test
O
O
O
21
Check ignition
O
O
O
22
Check bus connection to control accessories
O
O
O
23
Flue gas emissions test in emissions test mode
O
O
O
24
Gross flue gas temperature
°C
°C
°C
25
Ventilation air temperature
°C
°C
°C
26
Carbon dioxide content (CO
2
)
%
%
%
27
or oxygen content (O
2
)
%
%
%
28
Carbon monoxide content (CO)
%
%
%
29
Flue gas loss
%
%
%
30
Call up maintenance display and acknowledge fault history
O
O
O
Confirm service (company stamp, signature)
