SAFETY INSTRUCTIONS FOR THE APPLIANCE MAINTENANCE
Essential recommendations for the electrical safety
•
Before opening the appliance 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 appliance 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 appliance 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)
EN
FR
NL
ES
IT
DE
PL
RU
en
43
WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D
MAINTENANCE
TOOLS REQUIRED FOR MAINTENANCE
WATER HEATER SHUT DOWN FOR MAINTENANCE
1.
Switch the water heater off using the ON/OFF master switch and isolate the external power supply.
2.
Close the gas supply valve of the water heater.
PERIODIC WATER HEATER 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 appli-
ance. 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.
X
5.
Check the flue gas exhaust: correct fastening, correct in-
stallation, 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 42.
X
8.
Check visually the heating body: no evidence of corrosion,
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 Installation
of the Burner Electrode”, page 46.
X
10. Remove the burner and clean the exchanger, see “Remov-
al and Installation of the Burner”, page 44 and “Cleaning
the Exchanger” on page 46.
X
11. Check that the condensate trap is not clogged. If it is, re-
move it, clean it, and reinstall it i.a.w. “Water heater prepa-
ration” on page 37.
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 46.
