RECOMMENDATIONS FOR THE BOILER MAINTENANCE
Essential recommendations for the electrical safety
•
Before opening the boiler for maintenance, turn off the boiler by pushing on the
ON/OFF master switch.
•
Isolate the external power supply of the appliance before performing any
operation, unless it is required to take measurements or perform system setup.
Essential recommendations for safety
•
Water flowing out of the drain valve may be extremely hot and could cause severe
scalding.
•
Do not use solvents to clean any of the burner components. The components
could be damaged, resulting in unreliable or unsafe operation.
•
Check the tightness of the flue pipe connections.
Essential recommendations for the correct operation of the appliance
•
It is recommended to have the boiler and the burner serviced at least once a
year or every 1,500 hours
by a qualified technician, preferably at the start of the
heating season. More frequent servicing may be required depending on boiler
use. Please consult your installer for advice.
•
The boiler and burner maintenance will be carried out by a qualified engineer,
and the defective parts may only be replaced by genuine factory parts.
•
Make sure to replace any gaskets or seals on the removed components before
reinstalling them.
•
To ensure maximum efficiency and reliability of the unit, it is recommended that
the end-user perform the periodic checks mentioned in the Safety section of this
manual.
•
Control the tightness of the hydraulic circuit connections.
GAS
pressure
(mbar)
PRESTIGE 42-50-75-100-120 Solo : A1007856 - 664Y6200 • G
en
40
EN
FR
NL
ES
IT
DE
PL
RU
MAINTENANCE
MAINTENANCE
TOOLS REQUIRED FOR MAINTENANCE
BOILER SHUT-DOWN FOR MAINTENANCE
1. Switch the boiler off using the ON/OFF master switch and isolate the external power supply.
2. Close the gas supply valve of the boiler.
PERIODIC BOILER MAINTENANCE TASKS
Tasks
Frequency
Periodic
inspec-
tion
1 year
2 years
End-user
Professional
1. Make sure that the system water pressure is at least 1
bar when cold. Top up the system if necessary, adding
small quantities of water at a time. In case of repeated
fills, call your installer.
X
X
2. Check that there is no water on the floor under the boil-
er. Call your installer if there is.
X
X
3. Check that no error code is displayed on the control
panel. Call your installer if necessary.
X
X
4. Check that all gas, hydraulic and electrical connections
are correctly fastened and tight, refer to “Torque Val-
ues” on page 44.
X
5. Check the flue gas exhaust: correct fastening, correct
installation, no leaks or clogging.
X
6. Check that there is no discoloured or cracked area on
the burner chamber plate .
X
7. Check the combustion parameters (CO and CO2), see
“Checking and Adjusting the Burner” on page 39.
X
8. Check visually the heating body: no evidence of corro-
sion, soot deposits or damages. Carry out all required
cleaning tasks, repairs and replacements that might be
required.
X
9. Check the electrode, see “Removal, Check and Instal-
lation of the Burner Electrode”, page 41.
X
10. Remove the burner and clean the exchanger, see “Re-
moval and Installation of the Burner”, page 42 and
“Cleaning the Exchanger” on page 44.
X
11. Check that the condensate trap is not clogged. If it is,
remove it, clean it, and reinstall it i.a.w. “Ball conden-
sate Trap Installation” on page 34.
X
12. If a condensate neutralisation system is installed, check
it and have it cleaned.
X
X
•
Make sure to apply the correct torque value when tightening components.
Refer to "Torque Values" on page 44.
