107
EN
After cleaning has been completed, reassemble all the
components previously removed, putting in new seals where
necessary. In the event of possible detached electrical
connections, refer to the diagrams in this manual.
m
CAUTION
A test must be carried out on the gas line seal, as
required by legislation.
7.3.3
Cleaning boiler body
– Unscrew the nuts (12) and remove the inspection doors (13)
and seals (14)
– Use a rod suitable for mechanically cleaning the boiler body
ducts (e.g. Sime accessory (15) code 6077930). A chemical
product can be used provided it is suitable for aluminium
bodies working by condensation (e.g. Bekaert TAB 2/2000).
12
13
14
15
Fig. 40
At the end of the cleaning operations, check the state of the
seals (14) and if necessary replace them.
Refit the (13) doors and retighten the nuts (12) using a 7 Nm
tightening torque.
7.3.4
Dismantling and cleaning siphons and
condensate collection tank
– Unscrew the nuts (16) and remove the inspection doors
(17). Check and clean the condensate collection tank. When
cleaning has been completed, reassemble the door, checking
the seal and replacing it if necessary
– retighten the nuts (16) using a 7 Nm tightening torque
– undo the ring nuts (18) and (19) and remove the siphon,
watching out for any possible leaks of condensate
– undo the ring nut (20) and thoroughly clean the internal parts
of the siphon
– retighten the ferrules (18), (19) and (20) carefully.
18
19
20
16
17
Fig. 41
7.3.5
Check of electrodes and flame detection sensor
It is recommended that the regulation of the ignition electrodes
unit (23) and their wear, is always checked, along with that of the
flame detection sensor (24).
If necessary replace them, taking care that gaskets (21) and (22)
are not damaged during their extraction.
4 ±0,5
WARNING:
the rounded corner of the
plate must be positioned at
the top right
23
21
24
22
Fig. 42
NOTE:
When you insert the flame detection sensor, for example
following maintenance, make sure that the sensor faston (24) is
angled as shown in the figure.
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