26
6.2018
5.1 Heating settings
NOTE
When setting or changing the desired heating water temperature, check whether
parameter 371 is set to
constant,
chapter 11. In this case the following values have to
be set:
Normal
and
Correction
in the menus
Heating
and
1. Circuit
have to be equal
and higher than the setting of desired values in the mixing circuits (
2. Circuit, 3. Circuit
and
4.
Circuit
), if they are active.
In case one of the circuits (
2. Circuit
,
3. Circuit
or
4. Circuit)
is direct, it can have the
same setting as
1. Circuit
.
NOTE
In
mixing heating cycles,
the controller uses the highest set or calculated temperature
of heating cycles for calculating the needed temperature.
The heating temperature thus consists of the set or calculated temperature of heating
cycles and factory parameter settings
Avt. Corr.
In weather controlled heating you can set three parameters:
►
Normal
:
With this parameter, you set the desired return heating water temperature at an
outside air temperature of -18 °C.
►
Standby
:
With this parameter you set the desired temperature difference between the
current desired temperature of the Return and the temperature of the return when the
heating of the heating circuit or device turns on again.
►
Correction:
With this parameter you set the incline of the weather controlled heating curve
outside temperature 15 °C. It is mainly important for transitional periods because the
weather controlled heating curve can be too low at this time, depending on the building and
desired comfort.
The parameters
Normal
,
Standby
and
Correction
can be changed to the desired values with keys
or
5.1.1 Heating water control mode
The controller of the device enables two ways of controlling the temperature of heating water at the
exit of the device or the entry into individual heating circuits:
a)
Heating Curve:
Setting the desired temperature of heating water according to external
temperature.
b)
Constant:
The temperature of heating water is kept constant regardless of the external
temperature.
The control mode of the heating water suitable for individual buildings depends on various factors
such as the type of building, its size, make of heating system ...; this is why the control mode for
heating water temperature is set by a qualified person at commission (the authorised contractor for
commissions) nevertheless, you can change the setting later.
The recommendation of the device’s manufacturer is, if acceptable from the standpoint of comfort,
etc., to set the heating water control mode to
heating curve
; this is why the present document
regards this setting as the
default setting
- the setting
set at commission
. Heating curve means
a more efficient operation of the heating system because by with higher external temperature the
desired temperature of heated water is lowered, which means a more efficient operation of the
device; for more information, see section 5.1.2.
Control modes for heating water have to be set separately by type in menus:
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