Nibe S1155PC Installer Manual page 38

Own curve You can create your own heating curve
here, if there are special requirements, by setting the
desired supply temperatures for different outdoor tem-
peratures.
Point offset Select a change in the heating curve at a
certain outdoor temperature here. One step is usually
enough to change the room temperature by one degree,
but in some cases several steps may be required.
MENU 1.30.1 - CURVE, HEATING
Curve, heating
Setting range: 0 - 15,0
In menu "Curve, heating" you can view the heating curve
for your house. The task of the heating curve is to
provide an even indoor temperature, regardless of the
outdoor temperature. It is from this heating curve that
S1155PC determines the temperature of the water to
the climate system, the supply temperature, and there-
fore the indoor temperature. Here, you can select heat-
ing curve and read off how the supply temperature
changes at different outdoor temperatures.
TIP
It is also possible to create your own curve.
This is done in menu 1.30.7.
Caution
With underfloor heating systems, the maxim-
um supply temperature is normally set
between 35 and 45 °C.
Check the max floor temperature with your
floor supplier.
TIP
Wait 24 hours before making a new setting,
so that the room temperature has time to sta-
bilise.
If it is cold outdoors and the room temperature
is too low, increase the curve slope by one in-
crement.
If it is cold outdoors and the room temperature
is too high, lower the curve slope by one incre-
ment.
If it is warm outdoors and the room temperat-
ure is too low, increase the curve offset by one
increment.
If it is warm outdoors and the room temperat-
ure is too high, lower the curve offset by one
increment.
38 Chapter 9 | Control - Menus
MENU 1.30.2 - CURVE, COOLING
Curve, cooling
Setting range: 0 – 9
In the "Curve, cooling" menu you can view the cooling
curve for your house. The task of the cooling curve is,
together with the heating curve, to provide a uniform
indoor temperature, regardless of the outdoor temper-
ature, and thereby energy-efficient operation. It is from
these curves that S1155PC determines the temperature
of the water to the heating system, the supply temper-
ature, and consequently the indoor temperature. Here,
you can select the curve and read how the supply tem-
perature changes at different outdoor temperatures.
The number to the right of "system" shows the system
for which you have selected the curve.
Caution
Must be restricted with underfloor cooling min.
flow line temp. to prevent condensation.
Cooling in 2-pipe system
In order for operating mode "cooling" to be permitted,
the average temperature must be above the setting
value for "start cooling" in menu 7.1.10.2 "Auto mode
setting".
The cooling settings for the climate system are adjusted
in the indoor climate menu, menu 1.
MENU 1.30.3 - EXTERNAL ADJUSTMENT
Climate system
Setting range: -10 to +10
Setting range (if room sensor is installed): 5 - 30°C
Connecting an external contact, for example, a room
thermostat or a timer allows you to temporarily or peri-
odically raise or lower the room temperature. When the
contact is on, the heat curve offset is changed by the
number of steps selected in the menu. If a room sensor
is installed and activated the desired room temperature
(°C) is set.
If there is more than one climate system the setting can
be made separately for each system.
MENU 1.30.4 - LOWEST SUPPLY HEATING
heating
Setting range: 5 - 80 °C
Set the minimum temperature on the supply temperat-
ure to the climate system. This means that S1155PC
never calculates a temperature lower than that set here.
NIBE S1155PC