63
PARTS REPLACEMENT
Temperature sensors
(NTC’S)
●
Refer to the important information
and initial preparation on page 59.
●
Identify which sensor(s) is to be
replaced.
●
If required remove combustion
chamber cover by unclipping the
three clamps.
●
Pull off connecting wire from sen-
sor.
●
Unscrew NTC sensor (
1,2 or 3
).
●
Replace NTC sensor.
●
Reassemble in reverse order.
☞
NTC sensor 3 for TURBOmax
Plus only.
Main heat exchanger
●
Refer to the important information
and initial preparation on page 59.
●
Release central heating water
pressure.
●
Remove combustion chamber cover
by unclipping the three clamps.
●
Remove four screws (
4
) and pull off
combustion chamber front panel.
●
Remove the fan, the locating spring
and the fan hood.
●
Pull off the flow clamp (
5
) and
disconnect the return connection.
●
Remove the main heat exchanger
(
6
), disconnect the return
connection by removing the clamp
(
5
) and pulling the pipe away from
the heat exchanger.
●
Reassemble in reverse order.
2
3
1
Fig. E.7: NTCs
Euro B/S 163/0
4
6
6
5
Fig. E.8: Main heat exchanger
Euro B/S 161/0
☞
picture shows a TURBOmax Plus boiler
