EVO S
, Installation, Commisioning and Servicing Instructions
EN
48
7. MAINTENANCE OPERATIONS
UK would require Gas Safe installer. In IE by a Registered Gas Installer
(RGII).
Before performing the following operations:
•
Switch off the main circuit breaker.
• Close the gas supply isolation valve.
• Isolate the boiler hydraulically.
DESIGNATION
PERIOD
Clean the exchanger (see details in the next chapter)
ANNUAL
Visually inspect the heat exchanger for sooting.
If required remove the soot using a non-metallic brush. Chemical cleaning
is not allowed.
Ignition / ionisation electrodes (see details in the next chapter)
ANNUAL
Check the geometry of the ignition electrode (gap width) and the ionising
electrode.
If necessary, replace the electrodes.
Condensate removal siphon
ANNUAL
Clean the removal siphon and check that the condensate flows correctly.
Ensure the siphon is topped up with water after replacing
Check the gas valve and the differential air pressure switch. Check the
connection of the pressure transfer pipe.
ANNUAL
Carry out a combustion check.
7.1. Draining the boiler
Operation to be performed when cold
•
Hydraulically isolate the boiler (in the case of an installation with our
cascade packs, isolation valves are located at the level of the collectors),
•
Reduce the pressure by opening the boiler bleeder,
•
Open the drain valve of the installation or the one supplied with our
hydraulic kits,
•
Finish draining the outlet pipe by activating the safety valve.
•
Periodic check of the hydraulic safety valve.
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