31
1
2
B
Y
W
R
S
T
U
V
X
C
D
F
G
J
K
M
N
Q
Z
E
A
L
1
2
NTC
1
2
NTC
4
1
2
3
M
0-10 V
GND
PWM
1~
M
1
2
3
4
1
N
L 1
2
1
2
0-10 V
GND
PWM
1~
M
1
2
3
4
1
2
3
L
N
L L`
1 2
NTC
0 &10 V
9
8
7
6
5
4
3
2
1
GND
1
2
L2
L1
N
L
1
2
3
4
5
1
2
N
X19
Fig. 22
A
Power supply 1/N/PE 230 V/50 Hz
B
External electric preheating coil (accessories), fit-
ted into outdoor air duct
C
Output 0 and 10 V
–
D
External temperature sensor (NTC 10 k
Ω
), e.g. in
connection with a geothermal heat exchanger
E
Output 24 V
–
, max. 4.5 VA
■
For CO
2
and humidity sensor (additional
F
and
G
)
or
■
For ventilation control module, type LM1 (plus
J
)
F
Input, changeover
■
Input 0 to 10 V
–
for humidity sensor (delivered
condition)
■
Required parameter settings: See following
table.
G
Input, changeover
■
Input 0 to 10 V
–
for CO
2
sensor
■
Required parameter settings: See following
table.
J
Modbus connection (remote control, heat pump
control unit or ventilation control module, type
LM1)
K
Wireless receiver for wireless operating switches
L
Never connect anything here.
M
Central humidity sensor
N
Never connect anything here.
Connection and wiring diagram
Control PCB
5816563
Appendix
