Repair manual

45
Resistance [kOhm]
100
10
1
-40
0
40
80
120
Temperature [C°]
1000
Drawing 30
Diagram - safety thermal cutout sensor (excerpt)
Figure 15
~ Hollow screw and ring connection piece from the fuel
supply line
Ä Fuel strainer
Please note!
Note regarding fuel quantity
It is not possible to accurately check the fuel quantity and
pump pressure.
If necessary, the combustion can be checked by examining
the CO
2
content in the exhaust gas.
Fuel supply
Danger of fire, explosions and poisoning!
• Exercise caution when handling fuel.
• Avoid naked flames while handling fuel.
• Do not smoke. This applies also where fuel can be
detected only by its characteristic smell.
• Do not breathe in fuel vapour.
• When dismantling the fuel supply line, collect any fuel that
comes out.
Removing the fuel strainer (see Figure 15)
• Take off the hood.
• Remove burner.
• Unscrew the hollow screw and the ring connection piece
from the fuel supply line to the burner.
• Unscrew the fuel strainer from the burner casing, clean and,
if necessary, replace.
If any change is necessary to the factory combustion air
settings (CO
2
content), this can be effected by twisting the
adjustment cap (see page 46).
5 / Repair Instructions
Characteristic value table - safety thermal cutout sensor
(NTC)
Temp. [°C] Impedance [Ω] Permitted deviation [±Ω]
- 40 3 492 000 324 600
0 337 933 21 560
25 103 517 5 000
40 55 143 3 130
60 25 950 1 727
80 13 118 995
100 7 099 597
120 4 069 374
130 3 135 300
150 1 917 199
180 981 115
200 668 85