9 Maintenance
9.1
General
We recommend having the boiler inspected and serviced at regular
intervals.
Caution
Do not neglect to service the boiler. Contact a qualified
professional or take out a maintenance contract for the obligatory
annual servicing of the boiler.
Failure to service the appliance voids the warranty.
Caution
Have an inspection carried out and the flues swept at least once a
year or more, depending on the regulations in force in your
country.
Caution
Only qualified professionals are authorised to carry out
maintenance work on the boiler and the heating system.
Caution
After maintenance or repair work, check the entire heating system
to ensure that there are no leaks.
Caution
Only genuine spare parts may be used.
9.2
Maintenance instructions
9.2.1
Check the hydraulic pressure
1. Checking the hydraulic pressure in the installation.
2. If the hydraulic pressure is less than 0.08 MPa (0.8 bar), top up the
level of water in the heating installation so that the hydraulic pressure
is between 0.15 and 0.2 MPa (1.5 and 2.0 bar).
3. Carry out a visual check for any water leaks.
9.2.2
Topping up the installation with water
1. Open the valves on all radiators connected to the heating system.
2. Set the room thermostat to as low a temperature as possible.
3. Put the boiler in shut-down/frost protection mode.
4. Open the fill valve.
5. Close the filling valve when the pressure gauge shows a pressure of
0.15 MPa (1.5 bar).
6. Put the boiler in heating mode.
7. When the pump has stopped, vent again and top up the water
pressure.
Important
Filling and venting the installation twice a year should be sufficient
to obtain an adequate hydraulic pressure. If it is often necessary
to top up the installation with water, contact your installer.
9 Maintenance
34
EFU-S
7719764 - v02 - 16112018
