Uponor C-46 User Manual

CLIMATE CONTROLLER C-46 - INSTALLATION AND OPERATION MANUAL
46
10.2 Adjusting the heat curve
When the Climate Controller C-46 is set in Heating mode and an
outdoor sensor is connected, the heat curve is adjusted to
achieve an even zone temperature.
10.2.1 Description
The two parameters T-slope and T-adjustment are used to
adjust the heat curve:
• T-slope: This parameter is used to change the slope of the
graph in a supply temperature–outdoor temperature
diagram. See illustration below.
For example, houses that are well insulated and are heated by
a floor heating system require a gentle slope of the curve in
the diagram.
On the other hand, houses that are poorly insulated or are
heated with radiators require a higher slope value.
To change the T-slope parameter, see section 8.5.5 T-slope,
page 25.
• T-adjustment: The curves in the diagram all pass through
the point where outdoor and supply temperatures are both
20°C.
The T-adjustment parameter is used to move the curves
vertically. If the house is not warm enough at moderate
outdoor temperatures, then it is recommended to increase
the T-adjustment setting.
To change the T-adjustment parameter, see section 8.5.6 T-
adjustment, page 25.
The diagram above shows a number of heat curves for T-slope
parameter set between 0.2 and 1.4 and the T-adjustment
parameter set to 0.
The heat curves are also limited by the parameters Min., max.
supply temp. The default values for these parameters are 5 °C
for the minimum supply temperature and 40 °C for the maximum
supply temperature. In the diagram above, the parameter values
5 °C respectively 70 °C have been used to show the full potential
of the system. See section 8.5.4
Min./Max. supply, page 25 for
setting the parameters Min., max. supply temp.
10.2.2 Operation example
The following example describes how to adjust the heat curve
after Climate Controller C-46 has been set in Heating – outdoor
controlled supply mode.
Default settings
When the Heating – outdoor controlled supply mode has
been selected, the Climate Controller C-46 is set up with the
following default values:
• T-slope = 0.2
• T-adjustment = 3
In the diagram below, the default settings result in the heat curve
labelled 0.2/3.
In the Quick menu, the
Supply information screen
displays this:
In this operation example it is found that the heating is
insufficient at outdoor temperatures below the freezing point. To
compensate for this, the T-slope parameter is increased from 0.2
to 0.4. The resulting heat curve is labelled 0.4/3 in the diagram
above.
The Supply information
screen now displays this:
Moreover, it is found that the indoor temperature is too low at
moderate outdoor temperatures. To compensate for this, the
T-adjustment parameter is increased from 3 to 6. The resulting
heat curve is labelled 0.4/6 in the diagram above.
The resulting Supply
information screen displays
this:

Uponor C-46 Specifications

General

Brand	Uponor
Model	C-46
Category	Temperature Controller
Language	English