cooling-off period starts. After this period, parts in the
machine must be replaced in order to obtain greater
power.
MENU 5.1.14 - FLOW SET. CLIMATE SYSTEM
presettings
Setting range: radiator, floor heat., rad. + floor heat.,
DOT °C
Default value: radiator
Setting range DOT: -40.0 – 20.0 °C
Factory setting DOT: -18.0 °C
own setting
Setting range dT at DOT: 2.0 – 20.0
Factory setting dT at DOT: 10.0
Setting range DOT: -40.0 – 20.0 °C
Factory setting DOT: -18.0 °C
The type of heating distribution system the heating
medium pump (GP1) works towards is set here.
dT at DOT is the difference in degrees between flow
and return temperatures at dimensioned outdoor tem-
perature.
MENU 5.1.18 - FLOW SETTING CHARGE
PUMP
Set the flow for the charge pump here. Activate the flow
test to measure delta (the difference between the flow
and return line temperatures from the heat pump). The
test is OK if delta lies between the two parameters
shown in the display.
If temperature difference lies outside the parameters,
adjust the flow for the charge pump by reducing/increas-
ing the pressure, until the test is OK.
MENU 5.1.22 - HEAT PUMP TESTING
NOTE
This menu is intended for testing VVM 225
according to different standards.
Use of this menu for other reasons may result
in your installation not functioning as intended.
This menu contains several sub-menus, one for each
standard.
MENU 5.1.23 - COMPRESSOR CURVE
Caution
This menu is only displayed if VVM 225 is
connected to a heat pump with inverter con-
trolled compressor.
Set whether the compressor in the heat pump should
work to a particular curve under specific requirements
or if it should work to predefined curves.
You set a curve for a demand (heat, hot water etc.) by
unticking "auto", turning the control knob until a temper-
ature is marked and pressing OK. You can now set at
what temperatures the max. and min. frequencies, re-
spectively will occur.
This menu can consist of several windows (one for each
available demand), use the navigation arrows in the top
left corner to change between the windows.
MENU 5.1.25 - TIME FILTER ALARM
months btwn filter alarms
Setting range: 1 – 24
Factory setting: 3
Here you set the number of months between alarms
for a reminder to clean the filter in VVM 225.
MENU 5.2 - SYSTEM SETTINGS
Make different system settings for your installation here,
e.g. activate the connected heat pump and which ac-
cessories are installed.
MENU 5.2.2 - INSTALLED HEAT PUMP
If an air/water heat pump is connected to the control
module, you set it here.
If a heat pump is connected to the indoor module, activ-
ate it here.
MENU 5.2.4 - ACCESSORIES
Set which accessories are installed on the installation
here.
There are two ways of activating connected accessories.
You can either mark the alternative in the list or use the
automatic function "search installed acc.".
search installed acc.
Mark “search installed acc." and press the OK button to
automatically find connected accessories for VVM 225.
MENU 5.3 - ACCESSORY SETTINGS
The operating settings for accessories that are installed
and activated are made in the sub-menus for this.
51Chapter 8 | Control – MenusNIBE VVM 225
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