Installation & Servicing instructions
AT
AG XL
38
9
Boiler control
The boiler has a pilot-control. This control takes care of most of the manual settings but
also provides numerous settings to adjust the control exactly to the installation and user
requirements.
Display
The LCD screen is backlit. The light is activated by pushing one of the buttons.
There are 3 light colours available. The various colours indicate the following:
Blue
Basic level
Green
Setting level
Red
Problem display (flashing)
Having pressed a button, the screen light stays on for 2 minutes (blue screen) or 20
minutes (green screen).
Screen explanation
9
10
11
12 13
1
5
2
6
3
7
4
8
1. CH-program active
2. DHW-program active
3. Clock program active
4. Pump continuously active or pumps active during frost protection
5. Boiler off at outside temperature > T-day (when day temperature is active)
or
> T-night (when night temperature is active)
6. System pump on
7. Burner on. Starts flashing during heat demand, continuous when burner is on
8. Chimney sweep function (100% power for emission measurement)
9. Boiler address:
1
= Cascade Master
2.8
= Cascade Slaves
10. Identification burner inside boiler
11. Night temperature active
12. Day temperature active
13. 2 text lines with 8 characters each
A B C D
E F G H
Boiler symbols are not visible in case of a single boiler or
when no bus communication cable is connected (Error
code M024sc08).
