23NIBE VVM 300
Installation
Electrical connections
External contacts
Contact for changing the room temperature
An external contact function can be connected to SMO 10
to change the supply temperature and in doing so change
the room temperature, for example, a room thermostat or
a timer. The contact should be potential free and is con-
nected to terminals 3 and 4 on terminal block (14) on the
EBV card (2) and/or terminals 14 and 15 for heating system
2.
When contact is made, the supply temperature increases
or decreases. The value for the change is set on menu 2.5,
External adjustment (3.5 for heating system 2). The value is
adjustable between -10 and +10. One step corresponds to
one offset step of the heat curve.
Contact for activation of “Extra hot water”
An external contact function can be connected to VVM
300 for activation of the “Temporary extra hot water”
function.
The contact should be potential free and non-locking and
is connected via the edge board connector between posi-
tions 1 and 2 down on the lower part of the left connec-
tion row on the load monitor card (2).
When the contact makes for at least one second, the
“Temporary Extra hot water” function is activated. An au-
tomatic return to the previously set function occurs after 3
hours.
Room sensor
A room sensor, type RG 05, can be connected to SMO 10
between pos 3 and 4 on terminal block X4 on the EBV
card. SMO 10 compensates, by increasing or reducing the
calculated supply temperature, to maintain the room tem-
perature.
The room sensor is activated under menu 9.3.5. When
activated, menu 6.0 can be accessed and required settings
made in its sub-menus.
Rumstermostat
Rumstermostat
Rumstermostat
Rumsgivare
X4
X6.1
34
Room thermo-
stat system 2
Room thermo-
stat system 1
Room sensor
Extra hot water
14
2
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