Potterton Sirius two WH Installation, Operation And Maintenance Instructions page 17

When the Control Panel is wall-mounted enable the Room Temperature Sensor and flow temperature modulation as follows:
A) ROOM SENSOR
• Access menu 2.
• B Operator unit
• B programme row 40 (Used as)
• B (anti-clockwise)
• C to return to the previous menu then
• B programme row 5977 (Function input H5) then
B None B to confirm.
•
B) FLOW TEMPERATURE MODULATION
To set flow temperature modulation, disable parameter 742 (HC1). Proceed as follows:
• Access menu 2.
• B Temps / mode CH1
• B (anti-clockwise)
If, when turning the knob B on the main menu, the display shows the boiler flow temperature instead of the ambient tempera-
ture, parameter 742 has not been set correctly.
After every system configuration (e.g.: solar combination, connection an external storage tank, etc.) perform the following proce-
dure to update the boiler board to the new configuration:
• Access menu 2 as indicated at the beginning of this section.
• B Configuration
• B Yes then B to confirm.
ZONE SYSTEM WITH INSTALLATION OF THE REMOTE CONTROL
The electrical connection and the adjustments required to manage a system divided into zones with use of the Remote Control dif-
fers according on the accessories connected to the boiler. To install and configure, see the instructions of the Expansion Module
supplied as an accessory.
ADJUSTING THE TEMPERATURE OF THE HIGH TEMPERATURE HEATING SYSTEM
To avoid frequent starting and stopping, raise the minimum temperature setpoint of the boiler in the heating mode by setting pa-
rameters 740, to not less than 25°C, using the procedure described in point B.
TEMPERATURE ADJUSTMENT ON LOW TEMPERATURE HEATING SYSTEM
For a low temperature system (such as underfloor heating), reduce the maximum CH temperature setpoint on the boiler by setting
parameter 741 (point B) to a value not greater than 55°C.
9.2 OUTDOOR SENSOR
The outdoor sensor must be installed on an external wall of
the building that is to be heated (see chap. "OUTDOOR SEN-
SOR"), considering the following instructions:
• work on a wall facing north/north-east (avoid direct sunshine;
• do not install on walls subject to the formation of damp or
moss (identify the presence of thermal bridges;
• do not install near fans, steam outlets or chimneys (it is im-
portant to avoid the external temperature controlled by the
probe being infl uenced by external agents;
• ensure that the thickness of the wall used is suitable for
obtaining good heat insulation (do not fi x it to metal walls).
To connect this accessory, see figure to side (terminals 4-5) and the instructions supplied with the sensor.
With the outdoor sensor connected, press
chap. "OUTDOOR SENSOR" and parameter P03 in the table in section 14). To increase room temperature press +, to decrease
press -.
SETTING THE "Kt" CLIMATE CURVE
To set the required kt climate curve, proceed as follows:
• Access the menu as described in section 14.
• Select parameter P03.
• Select the climate curve from among those available, see the curve chart in chap. "OUTDOOR SENSOR" (the preset curve
is 1.5).
KEY TO CURVE CHART Kt - see chap. "OUTDOOR SENSOR"
Flow temp
B to confirm.
B.
Room unit 1 B to confirm (the room sensor is now active).
B Configuration
B to confirm B
"---" then B to confirm.
B B programme row 6200 then
buttons on the control panel to move the set climate curve Kt in parallel (see
Outside temp
B.
B to confirm.
742 (Flow temp setpoint room stat)
B.
17
B to confirm.
7112240.02 (1-07/13)