Pag. 2/5
17.10.2008 Service instructions Lmu34 sw 2.09
The editable parameters are those between
504
and
652
(parameters 650 and 652 are reading only
parameters).
Proceed as follows to access this parameters:
1)
Simultaneously press
keys
1
-
4
on QAA73 temperature regulator for about 3 seconds. The
“
Initialising BMU parameters
” appears on the display (line 725).
2)
Simultaneously press
keys
1
-
2
on QAA73 temperature regulator for about 3 seconds. The
“
Initialising BMU SERVICE
” (line 504 “TkSmax”).
3)
Press
keys
1
-
2
to scroll through the list of parameters.
4)
To change the value of the selected parameter, press
key
3
-4
to decrease or increase the value
respectively.
5)
Press key
5
to enter the new values and exit programming of the boiler’s electronic main board.
1
2 3
4
5
