Operating status
General
There are three operating modes available: Auto,
Manual and Add. heat only
RemarksSelectable func-
tions
Operating
mode
(menu 4.2)
All operating
modes permitted
autoauto
cooling only dis-
played if selected in
menu 5.2.
heating, addition,
cooling
manual
Cooling and heat-
ing can be selected
simultaneously if:
■
a room sensor is
installed and ac-
tivated
or
■
4-pipe cooling
system used.
compressor
blocked
heatingadd. heat
only
If addition is blocked it is permitted when:
■
hot water lux, temporary or continuous.
■
periodic hot water increase.
■
auxiliary operation if the compressor is blocked.
■
anti-freeze.
■
cooling operation.
Blocking of additional heat regards heat production
but can to some degree also affect hot water produc-
tion.
Hot water production can be blocked in the schedule.
In Auto operating mode the control selects the operat-
ing mode based on the following parameters. The
temperatures are average temperature during the time
it is selected in "filter time".
RemarksFactory
setting
NameMenu
Icons in the main
menu and in menu
4.2 are displayed
when addition is
blocked.
+5 °CStop addi-
tion
4.9.2
Icons appear in
menu 4.2 when
heating is blocked.
+17 °CStop heat-
ing
Time for average
temperature calcula-
tion
24 hrsFilter time
Auxiliary operation
"Auxiliary operation" is a type of emergency mode that
can be selected manually when the alarm has occurred.
This means that the heat pump produces heat and/or
hot water despite there being some kind of problem.
This can mean that the heat pump's compressor is not
running. In this case the immersion heater produces
heat and/or hot water.
Status lamp lights red in the event of a deployed auxil-
iary operation.
11Chapter 4 | Description of functionsNIBE™ VVM 320
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