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MENU 5.1.3 - MAX DIFF FLOW LINE TEMP.
max diff compressor
Setting range: 1 – 25 °C
Default value: 10 °C
max diff addition
Setting range: 1 – 24 °C
Default value: 7 °C
Here you set the maximum permitted difference
between the calculated and actual supply temperature
during compressor respectively add. heat mode. Max
diff. additional heat can never exceed max diff. com-
pressor
max diff compressor
If the current supply temperature exceeds the calculated
supply by set value, the degree minute value is set to
0. The compressor in the heat pump stops if there is
only a heating demand.
max diff addition
If "addition" is selected and activated in menu 4.2 and
the current supply temperature exceeds the calculated
temperature by the set value, the additional heat is
forced to stop.
MENU 5.1.4 - ALARM ACTIONS
Select if you want the indoor module to alert you that
there is an alarm in the display here.
Caution
If no alarm action is selected, it can result in
higher energy consumption in the event of an
alarm.
MENU 5.1.12 - INTERNAL ELECTRICAL
ADDITION
fuse size
Setting range: 1 - 200 A
Factory setting 1x230V: 32 A
Here you set the max. electrical output of the internal
electrical addition in VVM 320 and the fuse size for the
installation.
NIBE VVM 320
All manuals and user guides at all-guides.com
MENU 5.1.14 - FLOW SET. CLIMATE SYSTEM
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
Check that the flow for the charge pump through the
heat pump is sufficient. Activate the flow test to meas-
ure delta (the difference between the flow and return
line temperatures from the heat pump). The test is OK
if delta lies below the parameter shown in the display.
MENU 5.1.22 - HEAT PUMP TESTING
This menu contains several sub-menus, one for each
standard.
MENU 5.1.23 - COMPRESSOR CURVE
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.
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
NOTE
The hot water temperature (BT6) must be be-
low 40 °C in order for the flow test to start.
NOTE
This menu is intended for testing VVM 320
according to different standards.
Use of this menu for other reasons may result
in your installation not functioning as intended.
Caution
This menu is only displayed if VVM 320 is
connected to a heat pump with inverter con-
trolled compressor.
Chapter 8 | Control - Menus
55
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