12
12.3Water-side mainte- nance
12.3.1
Performing maintenance | s |
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Introduction
The following steps must be carried out on the water side:
1.Checking the anodes.
2.Descaling and cleaning the tank.
12.3.2Checking the anodes
Timely replacement of the anodes extends the service life of the appliance. The appliance's anodes must be replaced as soon as they are 60% used or more (take this into consideration when determining the maintenance frequency).
1.Remove the chimney flue components from the top box.
2.Remove the cover from the top box.
3.Disconnect the fan leads and withdraw the cable through the strain relief.
4.Undo the screws in the top box.
5.Remove the top box from the appliance.
6.Undo the screws of the lid in the top side of the appliance.
7.Remove the lid from the appliance.
8.Remove the sealing ring from the appliance.
9.Loosen the anodes using suitable tools.
10.Check the anodes, and if necessary, replace them.
11.Now also check the flue baffles (12.4.4 "Checking the flue baffles"). If necessary, replace them.
12.Place a new sealing ring on the rim of the tank and
13.
14.Feed the fan cable through the strain relief and connect the leads to the fan. See addendum A: BFM electrical diagram.
15.
12.3.3Descaling and cleaning the tank
Scale and lime buildup prevent effective conduction of the heat to the water. Periodic cleaning and descaling prevents buildup of these deposits. This increases the service life of the appliance, and also improves the heating process.
Take the rate of scale formation into account when deciding on maintenance frequency. Scale formation depends on the local water composition, the water consumption and the water temperature setting. A water temperature setting of maximum 60°C is recommended for prevention of excessive scale buildup.
To ensure the perfectly watertight sealing of a cleaning opening, the gasket (6),
To simplify the task of descaling and cleaning the tank, the appliance is equipped with two cleaning openings.
64 | Instruction manual BFM |