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11
Isolating the boiler
i
+
+
i
-
-
R
12
Commissioning
26
In some situations it may happen that the entire boiler has to be deactivated. With the
function key for the heating program the boiler is put out of service.
CH program OFF: Press – until the lowest value is reached and then press – again. The
display is showing -- and the upper
Switching on with the + key takes place in reverse order.
ATAG recommends to leave the plug in the wall socket, so that the circulation pump is
activated automatically once every 24 hours in order to prevent jamming.
If there is danger of frost it is advisable in this case to drain the boiler and/or
installation.
Work on the installation should only be carried out by qualified personnel with
calibrated equipment.
For maintenance of the boiler the cover has to be removed.
Unscrew the 4 locking screws from the quick fasteners, unlock the quick fasteners and
remove the cover in a forward motion.
Changing settings such as the burner pressure and the setting for the amount of air is
superfluous. Only in case of a failure or when replacing the gas block, venturi and/or fan,
the O
percentage should be checked.
2
Always check all gas carrying parts for leaks (with a leak detection spray) after
(maintenance) work to the boiler.
is off.
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