7
Select an official installer to do the maintenance after 1 year of
operation. This installer can, depending of the inspection and
installation circumstances, determine the interval for future
maintenance.
•
Pull the plug. Remove the siphon, clean it, refill it with water and
mount it again.
•
Remove the inspection panel from the cover on top of the boiler.
•
Remove the connectors from the fan and the gas valve.
•
Unscrew the brass gas coupling near the gas valve.
•
Unscrew the four M5 nuts, which fix the fan to the burner hood.
Now the fan can be removed complete with gas valve and
venturi.
•
Unscrew the 8 nuts M6 of the burner hood en remove the burner
hood.
•
Now the burner can be removed. Inspect the fire chamber and
the burner. The burner can be cleaned with a nylon brush (never
use a steel brush) on the inside (so not on the side of the flame!)
•
Replace the burner hood gasket if necessary.
•
To finish mount all parts in reverse order.
•
Pay attention to the right position of the burner, burner hood and
fan.
•
Light the boiler and check the %CO
2
both at max load and min
load. If necessary re-adjust the %CO
2
(see procedure at page 10)
Resistance table temperature sensors
The manufacturer may change parts of this manual without prior
notice.
MAINTENANCE
Temp. °C
R
Ω
Temp. °C
R
Ω
-20
98200
40
6650
-15
75900
45
5520
-10
58800
50
4610
-5
45900
55
3860
0
36100
60
3250
5
28600
65
2750
10
22800
70
2340
15
18300
75
1940
20
14700
80
1710
25
12000
85
1470
30
9800
90
1260
35
8050
95
1100
100
950
