CONNECTING SENSOR
AA3-X6
Outside sensor
The outdoor temperature
sensor (BT1) is placed in the
shade on a wall facing north or
north-west, so it is unaffected,
for example, by the morning
sun.
Connect the outdoor temperat-
ure sensor to terminal block
X6:1 and X6:2 on the input board (AA3).
If a conduit is used it must be sealed to prevent condensa-
tion in the sensor capsule.
1
2
3
4
AA3-X6
BT1
External
VVM 310
Room sensor
VVM 310 is supplied with an enclosed room sensor (BT50).
The room sensor has a number of functions:
1.
Shows current room temperature in the display on
VVM 310.
2. Option of changing the room temperature in °C.
3. Provides the option of fine-tuning the room temperat-
ure.
Install the sensor in a neutral position where the set temper-
ature is wanted.
A suitable location is on a free inner wall in a hall approx. 1.5
m above the floor. It is important that the sensor is not pre-
vented from measuring the correct room temperature, for
example by being located in a recess, between shelves, be-
hind a curtain, above or close to a heat source, in a draught
from an external door or in direct sunlight. Closed radiator
thermostats can also cause problems.
VVM 310 operates without the room sensor, but if you want
to read the home’s indoor temperature from the display on
VVM 310, the sensor must be fitted. Connect the room sensor
to X6:3 and X6:4 on the input board (AA3).
If the room sensor is to have a controlling function, it is ac-
tivated in menu 1.9.4.
If the room sensor is used in a room with underfloor heating,
it should only have an indicatory function, not control of the
room temperature.
F1245
RG 05
2
3
4
5
AA3-X6
BT50
External
VVM 310
Caution
Changes of temperature in accommodation take
time. For example, short time periods in combina-
tion with underfloor heating will not give a notice-
able difference in room temperature.
21
Chapter 5 | Electrical connections
NIBE VVM 310
