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AUX2
AUX3
AUX4
AUX5
The example above uses the inputs AUX1 (X6:9-10) and AUX2 (X6:11-
12) on the input board (AA3).
Selectable output
A selectable output is AA3-X7.
TIP
Some of the following functions can also be
activated and scheduled via menu settings.
Possible selection for AUX inputs
Temperature sensor
Temperature sensor can be connected to VVM 310. Use
a 2-core cable of at least 0.5 mm² cable area.
Available options are:
• cooling/heating/hot water, determines when it is time
to switch between cooling, heating and hot water
mode (can be selected if cooling accessory is installed)
• supply temperature sensor for cooling (BT64) (used
when "active cooling in 4-pipe system" has been ac-
tivated in the output AA3-X7)
Monitor
Available options are:
• alarm from external units. The alarm is connected to
the control, which means that the malfunction is
presented as an info-alarm in the display. Potential-
free signal of type NO or NC.
• stove monitor. (A thermostat that is connected to the
chimney. When the negative pressure is too low and
the thermostat is connected, the fans in ERS are
closed. (NC))
External activation of functions
An external switch function can be connected to
VVM 310 to activate various functions. The function is
activated during the time the switch is closed.
Possible functions that can be activated:
36
Chapter 5 | Electrical connections
AA3-X6:11-12
AA3-X6:13-14
AA3-X6:15-16
AA3-X6:17-18
SMO Externt
VVM 310
External
9
B
10
11
A
12
13
14
15
16
AA3-X6
AA3-X6
• hot water comfort mode "temporary lux"
• hot water comfort mode "economy"
• "external adjustment"
An external contact function can be connected to
VVM 310 to change the supply temperature and the
room temperature.
When the switch is closed, the temperature changes
in °C (if the room sensor is connected and activated).
If a room sensor is not connected or not activated,
the desired change of "temperature" (heating curve
offset) is set with the number of steps selected. The
value is adjustable between -10 and +10. External
adjustment of climate systems 2 to 8 requires ac-
cessories.
– climate system 1 to 8
The value for the change is set in menu 1.9.2, "ex-
ternal adjustment".
• SG ready
Caution
This function can only be used in mains net-
works that support the "SG Ready" standard.
"SG Ready" requires two AUX inputs.
"SG Ready" is a smart form of tariff control, through
which your electricity supplier can affect the indoor,
hot water and/or pool temperatures (if applicable) or
simply block the additional heat and/or compressor in
the heat pump at certain times of the day (can be se-
lected in menu 4.1.5 after the function is activated).
Activate the function by connecting potential-free
switch functions to two inputs selected in menu 5.4
(SG Ready A and SG Ready B).
Closed or open switch means one of the following:
–
Blocking (A: Closed, B: Open)
"SG Ready" is active. The compressor in the heat
pump and additional heat is blocked like the day's
tariff blocking.
–
Normal mode (A: Open, B: Open)
"SG Ready" is not active. No effect on the system.
–
Low price mode (A: Open, B: Closed)
"SG Ready" is active. The system focuses on costs
savings and can for example exploit a low tariff from
the electricity supplier or over-capacity from any own
power source (effect on the system can be adjusted
in the menu 4.1.5).
–
Overcapacity mode (A: Closed, B: Closed)
"SG Ready" is active. The system is permitted to run
at full capacity at over capacity (very low price) with
the electricity supplier (effect on the system is set-
table in menu 4.1.5).
(A = SG Ready A and B = SG Ready B )
NIBE VVM 310
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