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INSTALLER Section (en)
7219623.01 (1-04/15)
18. ANNUAL SERVICING
If the boiler was operating, wait for the combustion chamber and pipes to cool down.
Before commencing any maintenance operations, make sure the boiler is disconnected from the power supply. After servicing,
reset the original operating parameters of the boiler if they were changed.
Do not clean the boiler with abrasive, aggressive and/or easily ammable substances (such as petrol, acetone, etc.).
It is advisable not to use the service cap at the base to empty and clean the siphon. Remove the siphon from inside the boiler
and clean it with a jet of water. Fill the siphon with clean water and put back in place, making sure that it is properly connected.
18.1 HYDRAULIC UNIT
20 °F
LEGEND - "SECTION" F
A
B
C
Boiler/system drain tap
(C-1 & C-2: access to tap C - bottom of boiler)
D
E DHW temperature NTC probe
F
18.1.1 CLEANING THE COLD WATER FILTER
B
Remove the nut on the DHW priority sensor unit
Remove any impurities.
When replacing and/or cleaning the O-rings on the hydraulic assembly, only use Molykote 111 as a lubricant, not oil or grease.
18.2 POSITIONING THE ELECTRODES
5 ±
1
4
±0,
5
1
0
±
1
CG_2190
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