Table of Contents
Advertisement
12.4 CONNECTING THE QAA73 TEMPERATURE REGULATOR
The SIEMENS model QAA73 temperature regulator (optional accessory) must be connected to terminals 1-2
of terminal block M2 in gure 8.
The jumper across terminals 3-4, provided for connection of a room temperature thermostat, must be removed.
The settings of the domestic hot water temperature and domestic hot water production schedule must be
made using this device.
The timed program of the central heating circuit must be set on the QAA73 if there is a single zone, or in relation
to the zone controlled by the QAA73 device.
The timed program for the central heating circuit of the other zones can be set directly on the boiler control panel.
See the instructions provided with the QAA73 temperature regulator for the user parameter programming
procedure.
QAA73: parameters which can be set by the installer (service)
By pressing the two PROG buttons together for at least three seconds it is possible to access the list of pa-
rameters 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
HC1 gradient
70
Selection of central heating circuit temperature curve "kt"
HC1 max. output
72
Central heating system maximum output temperature
74
Type of building
Room compensation
75
Activation/deactivation of the influence of the room temperature. If it is
deactivated, the outdoor temperature sensor must be installed.
Automatic adaptation of the temperature curve "kt" in relation to the room
77
temperature.
Opt Start Max
78
Maximum time the boiler is switched on ahead of the timed program to optimise
the temperature in the premises.
Opt Stop Max
79
Maximum time the boiler is switched off ahead of the timed program to optimise
the temperature in the premises.
80
HC2 gradient
DHW Red Setp
90
Minimum temperature of the domestic domestic hot water
DHW program
Selection of the type of timed program for domestic hot water.
24 h/day
91
PROG HC-1h
PROG HC
PROG ACS
- fault messages
In the event of fault, the display panel on the QAA73 shows the ashing symbol . Press the information key
( ) to display the error code and a description of the fault (see table on paragraph 3.9).
ISTRUCTIONS PERTAINING TO THE INSTALLER
hydroheat.com.au
= always on
= as HC1 central heating program less one hour
= as central heating program
= speci c domestic hot water program
(see also program lines 30-36)
21
Range
Default value
2.5...40
15
25...85
85
Light, Heavy
Light
on HC1
on HC2
On HC1
on HC1+HC2
nil
On - off
On
0...360 min
0
0...360 min
0
2.5...40
—.-
—.- = not active
10...58
10
24 h/day
TSP HC-1h
24 h/day
TSP HC
TSP DHW
910.026.1 - EN (AUS)
Advertisement
Table of Contents
