23
910.024.1 - EN (AUS)
INSTRUCTIONS PERTAINING TO THE INSTALLER
- fault messages
In the event of fault, the display panel on the QAA73 shows the flashing symbol . Press the information key ( ) to display
the error code and a description of the fault (see Fault warning tables on paragraph 3.9).
QAA73: parameters which can be set by the installation engineer (service)
By pressing the two
PROG
buttons together for at least three seconds it is possible to access the list of parameters that
the installer can display and/or set.
Press either of these buttons to change the parameter to display or change.
Press the [+] or [-] key to change the value displayed.
Press either of the
PROG
buttons again to save the change.
Press the information button
(i)
to quit programming.
Here follows a list of the most commonly used parameters:
Line no.
Parameter
Range
Default
value
70
HC1 gradient
Selection of central heating circuit temperature curve “kt”
2.5…40
15
72
HC1 max. output
Central heating system maximum output temperature
25…85
85
74
Type of building
Light, Heavy
Light
75
Room compensation
Activation/deactivation of the influence of the room temperature. If it is deactivated, the
outdoor temperature sensor must be installed.
on HC1
on HC2
on HC1+HC2
nil
On HC1
77
Automatic adaptation of the temperature curve “kt” in relation to the room temperature.
On - off
On
78
Opt Start Max
Maximum time the boiler is switched on ahead of the timed program to optimise the
temperature in the premises.
0…360 min
0
79
Opt Stop Max
Maximum time the boiler is switched off ahead of the timed program to optimise the
temperature in the premises.
0…360 min
0
80
HC2 gradient
2.5…40
—.-
= not active
—.-
90
DHW Red Setp
Minimum temperature of the domestic domestic hot water
10 or 35…58
10
91
DHW program
Selection of the type of timed program for domestic hot water.
24 h/day
TSP HC-1h
TSP HC
TSP DHW
24 h/day
24 h/day
PROG HC-1h
PROG HC
PROG ACS
= always on
= as HC1 central heating program less one hour
= as central heating program
= specific domestic hot water program
(see also program lines 30-36)
