Control
33
Heat Generation
-
General
Adjustments to be made regularly
CURVE
C
C
40
18
C
0
5
-5
24
32
40
48
56
64
18
Feed line
temperature
Heat curve
Relation of outside
air temperature to
Feed line temperature
Outside air temperature
The indoor temperature should be adjusted by changing the heat curve of the installation. The control
computer determines the correct temperature of the water to be distributed to the heating system based on
the heat curve. The heat curve will be adjusted in connection with installation. It must be adapted later on,
however, to obtain a pleasant indoor temperature under any weather condition. A correct heat curve
reduces maintenance and saves energy.
The heat curve determines the feed line temperature depending on the outside air temperature. The lower
the outside air temperature, the higher the feed line temperature. In other words, the temperature of the
water feed to the radiators will increase exponentially as the outside air temperature falls.
If you select CURVE in the sub-menu named HEAT CURVE, a diagram will be displayed. It represents the
relation of outside air temperature to feed line temperature. This relation is referred to as heat curve.
Adjustment
of
the
CURVE
value
The heat curve will be adjusted by the CURVE value. This value indicates the feed line temperature
to the radiators at 0°C outside temperature. At outside air temperatures lower than 0°C, the water sent to
the radiators will be warmer than 40°C.
At outside temperatures higher than 0°C, the water will be colder than 40°C. When you increase the
CURVE value, the heat curve will become steeper and when you reduce it, it will become flatter.
This is the most energy and cost efficient way to set the indoor temperature and should therefore be
used for long term temperature settings. If you wish to make a temporary change of temperature, you
can simply change the ROOM value (see ”Adjustment of the ROOM value” on page37).
Most settings will be made by the installation contractor in connection with installation. Adjustments to be
made regularly by the user are the following:
• Selection of operating mode
• Adjustment of desired room temperature by changing the ROOM value.
• Adjustment of heat curve
• Adjustment of maximum and minimum values for feed line temperature
• Adjustment of the value for HIGH T STOP or LOW T STOP is possible. (Please refer to ”Adjustment of HIGH T STOP
or LOW T STOP value” on p. 40).
.
Sub-Menu
LANGUAGE
LANGUANG
ENGLISH
F R E N C H
Language selection :
How to enter the Sub-Menu of LANGUAGE:
You need to choose the " LANGUAGE" on the
Main menu ( INFORMATION ).
Press the right button.
Then " LANGUAGE" menu can be seen.
Use Up and Down botton to select the language ,
and press Right button to confirm.
