Atag LMU-B A Serie Manuel D'instructions page 8

6
Parameter
factory
PARA Fill out
setting
518 5
520 5
532 24
541 max.
555
b0-1
b2 off
b3
b4 on
b5-7
637*
651 1=Kind of gas /
Type from
factory
2=non-retour
valve
3=Propane
652 0 0
680 0
681 off
682
b1 off
b1-6
b7 off off
683 0
684
b0 off
b1 on
686* 0
687* 0
* Dependant of boiler type
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- Put the plug in the wall socket (Picture 6).
After starting up the display shows C1 05
- Press the OK button for 3 seconds.
The display shows, P6 (alternated by) 81';
- Again press the OK button for 3 seconds.
The display shows ‚on' followed by ‚P5 18;
You now have access to the parameter menu.
- Press the Scroll button to select parameter 6 80;
- Press the OK button;
- Using the + or – button select the corresponding apparatus type;
See label on the new control unit.
- Briefly press the OK button to confirm the new setting;
The display again shows the selected parameter.
- Press the Scroll button to select parameter 6 82;
- Press the OK button;
- Using the + or – button select bit-parameter b7
- Press the OK button;
- Change the value with the + to 'on' and press the OK button
By changing this bit parameter to ON the setting of parameter 6 80 is confirmed. After
20 seconds (time needed to load the parameter file) a hardware reset is executed after
which the automatic venting program is executed.
- Set if necessary the installation related settings (flow temperature, gradient and if ap-
plicable type of gas) according the values filled out in the table.
Check before using the boiler if parameter 651 is set on the right value
1= Kind of gas/Type from factory
2= Non return valve (with sticker 'non return valve installed' on the
heat exchanger)
3= Propane
- Check if the boiler runs well.
- Put on the housing and install the locking screws (Picture 7).
Always put back the cover after (maintenance) work and secure it with screws
A, B, C and D.
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