Room sensor
VVM 500 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 500.
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 500 operates without the room sensor, but if you want
to read the home’s indoor temperature from the display on
VVM 500, 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 500
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.
COMMUNICATION
If VVM 500 is to be connected to the heat pump, it is connec-
ted to terminal blocks X4:13, X4:14 and X4:15 on the input
board (AA3).
AA3-X4
VVM 500 and F2040,
F2050 / NIBE SPLIT HBS 05, 20
AA23-X4
B
A
GND
B
A
GND
5
4
3
2
1
6
Inomhusmodul
AA3-X4
B
GND
A
14
13
12
11
10
15
F2040 / HBS 05
VVM 500
F2040, HBS 05, 20
VVM 500 and F2120, S2125
Inomhusmodul
F2120
AA3-X4
AA2-X23
AA2-X22
3
2
1
4
GND
GND
A
A
B
GND
A
B
B
3
2
1
4
14
13
12
11
10
15
VVM 500
F2120, S2125
23
Chapter 5 | Electrical connections
NIBE VVM 500