Installation & Servicing instructions
AT
AG XL
50
11.1 Activate factory settings
Do the following to reactivate factory settings (any changed settings, except from P108
and P121, will be lost):
Activating the factory settings from user level only:
From the standard blue screen display:
1. Select using the right arrow button: Basic settings;
2. Press the OK button;
3. Press the right arrow button until: Restore Defaults
4. Press OK
Screen displays: Restore OK
5. Press OK again
Screen displays: Restore Defaults
This has now restored the factory settings.
Activating the factory settings from installer level:
From the standard blue screen display:
1. Press down the arrow buttons simultaneously for 2 seconds;
2. Continue with the same instructions from point 1 to 5 described above.
The procedure can take about 20 seconds and shows a blank screen followed by the
text Please Wait.
12
Put out of operation
In some cases it might be necessary to put the complete boiler out of operation. The
boiler is put out of operation by switching off the three functions (
,
and/or ).
Proceed as follows:
From the standard blue screen display:
1. Press the right arrow button:
Screen displays: Basic setting;
2. Press OK;
Screen displays: CH prog on;
3. Press the - button:
Screen displays: CH prog off;
4. Press OK;
5. Repeat procedure from point 3 onward.
This switches off the functions DHW prog and Pump prog respectively.
6. Press the return button to return to the standard display.
ATAG recommends leaving the power switch switched on to ensure that the boiler
pump(s) and three-way valve (if fitted) are automatically activated to prevent them from
sticking. The frost protection remains active. Leave gas supply open.
If frost, during the period when the boiler is out of operation, is likely, then you
are advised to remove the power from the boiler and drain the boiler(s) and
installation. In this case: close the gas valve.
Restore
Defaults
Confirm
Restore
