Cleaning the fan
1. Check the cleanliness of the fan once a year. Clogging by dust and
other particles impairs the heat pump's performance.
8.2.4
Impressed current anode
No maintenance operations are required on an impressed current anode.
Important
The control panel for the appliance must remain switched on to
ensure that the impressed current anode can operate. Failure to
comply with this instruction may cause deterioration to the water
heater tank and cancel its warranty.
8.2.5
Checking the safety valve or safety unit
Operate the safety valve or safety unit at least once a month to check that
it is running correctly. This check helps to protect against any pressure
surges that may damage the water heater.
Caution
Failure to comply with this maintenance rule may cause damage
to the water heater tank and invalidate its warranty.
8.2.6
Descaling the thermodynamic water heater
Important
Fit a new leak tight gasket to the inspection hatch.
In hard water regions, you are recommended to ask the installer to
descale the water heater exchanger once a year in order to maintain its
performance levels.
1. Shut off the domestic cold water inlet.
2. Drain the water heater.
3. Turn on a hot water tap.
4. Open the drain valve on the cold water inlet at the bottom of the
domestic hot water tank.
5. Remove the insulation from the inspection hatch.
6. Take out the domestic hot water sensor.
7. Remove the inspection hatch (13-mm spanner).
8. Until December 2015: Remove the two bulbs from the safety
thermostat.
From January 2016: Take out the safety thermostat bulb.
9. Remove the limescale deposited in the tank in the form of sludge or
strips.
Leave the limescale on the walls of the tank: it provides effective
protection against corrosion and enhances the water heater's
insulation.
10. Then replace all the parts in reverse order.
Important
Each time it is opened, the lip gasket must be replaced to
guarantee tightness. Place the positioning lug on the gasket
towards the outside of the water heater.
11. After each intervention, ensure that the installation is watertight.
Important
The screws must be tightened to 6 Nm + 1/-0. Use a torque
wrench.
Fig.41
M002839-B
8 Maintenance
48
300026515 - v10 - 28082018
