S1255
HTS 40
Värmepump
AA28-X1
AA2-X30
B
A
G
N
D
+1
2
V
+12V
GND
B
A
1
2
3
4
1
4
3
2
HTS 40
Heat pump
AA2-X30
AA28-X1
AIR/WATER HEAT PUMPS
INDOOR MODULES
Terminal block X1 on the humidity sensor board (AA28)
in HTS 40 is connected to terminal block AA2-X30:1-4
in the indoor module.
VVM S320, VVM S325
HTS 40
Värmepump
AA28-X1
AA2-X30
B
A
G
N
D
+1
2
V
+12V
GND
B
A
1
2
3
4
1
4
3
2
HTS 40
Indoor module
AA2-X30
AA28-X1
CONTROL MODULES
SMO S40
Terminal block X1 on the humidity sensor board (AA28)
in HTS 40 is connected to terminal block AA100-X9:7-
10 in the control module.
HTS 40
+12V
GND
B
A
1
4
3
2
Styrmodul
7
9
10
GND
B
+12V
8
A
AA100-X9
AA28-X1
HTS 40
Control
module
AA100-X9
AA28-X1
MULTIPLE SENSORS
If RMU S40 is to be connected to the main product, it
can be connected from terminal block (AA28-X1) in
HTS 40.
Main product
HTS 40
RMU S40
GND
B
A
+12V
6
7
8
HTS 40
RMU S40
B
AA28-X1
5
G
N
D
A
+1
2
V
1
2
3
4
HTS 40
RMU S40
AA28-X1
THE SENSOR'S TOLERANCE LEVEL
0
0
10
20
30
40
50
60
70
80
90
100
±2
±4
±6
±8
±10
ΔRH
(%RH)
Relativ luftfuktighet
(%RH)
Relative humidity
(%RH)
ΔRH
(%RH)
DIP SWITCH
The DIP switch (S2) on the humidity sensor board (AA28)
must be set as follows.
Humidity sensor 2
ON
1 2 3 4
Humidity sensor 1
ON
1 2 3 4
Humidity sensor 4
ON
1 2 3 4
Humidity sensor 3
ON
1 2 3 4
15
HTS 40 | GB