Connecting The Outdoor Temperature Sensor - Potterton Sirius WH 50-60-70 Installation, Operation & Maintenance Manual

Here follows a list of the most commonly used parameters:
Parameter
Line no.
HC1 curve
70
Selection of central heating circuit temperature curve "kt"
HC1 max. output
72
Central heating system maximum output temperature
Type of building
74
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
77
to the room 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.
HC2 curve
80
DHW Red Setp
90
Minimum temperature of the domestic hot water
91 DHW program
Selection of the type of timed program for domestic hot water.
24 h/day
PROG HC-1h
PROG HC
PROG DHW
- 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).

14.5 connecting tHe outdoor temperature sensor

The SIEMENS model QAC34 outdoor temperature sensor for weather compensation must be connected to
terminals 7-8 of terminal board M2 in figure 13.
The procedures for setting the gradient of the temperature curve "kt" vary depending on the accessories
connected to the boiler.
a) Without Qaa7 room temperature regulator:
The temperature curve "kt" must be selected by setting parameter H532 as described in section 16 "setting
the boiler parameters".
See graph 2 for selecting the curve referred to a room temperature of 20°C.
The chosen curve can be shifted by pressing the
the value displayed by pressing the
in graph 3 refers to the curve Kt=15).
Increase the value displayed if the room temperature required is not reached inside the premises for central
heating.
InstructIons pErtaInInG to thE InstaLLEr
= 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)
and . keys. See graph 3 for curve selection. (The example show
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 or 35...58
10
24 h/day
24 h/day
TSP HC-1h
TSP HC
TSP DHW
(2), button (2) on the boiler control panel, and modifying
8
91.7.1 - GB/IE