ENGLISH
20
NT_51897201_RHE-AN_130516.docx
Inputs – outputs
6.4
Analogic input (Sensor)
Terminals Signal
Variable
Name
Description
1-2 PT1000
AI1
Supply
Supply
air
sensor
install on supply air duct connection
3-4
PT1000
AI2
Extract
Extract air sensor install on extract air duct connection
5-6
PT1000
AI3
Frost protection
Frost protection sensor install on water coil
7-8
PT1000
AI4
Outdoor
Outdoor air sensor install on outdoor air duct connection
9-10(Gnd) + 24V
0-10V
UI1
Ventilation
setpoint
Air quality sensor (CO2) or external set point signal
modulating the ventilation airflow
11-12(Gnd) + 24V 0-10V
UI2
DP Duct
Duct Pressure transmitter for constant pressure
application (COP)
13-14(Gnd) + 24V 0-10V
UI3
DP3 supply
Pressure transmitter for Supply airflow control
15-16(Gnd) + 24V 0-10V
UI4
DP4 extract
Pressure transmitter for extract airflow control
24
V
SA
4
24
V
SA5
23
24
7
8
5
6
3
4
1
2
25
26
27
28
SA
3
SA
2
SA1
10
9
+24V
12
11
+24V
14
13
+24V
16
15
+24V
21
22
A
B
2T1 4T2 6T3
5L3
3L2
1L1
KM3
NO
NO
A2
A1
24
V
24
V
24
V
on
LN
Gnd
Gnd
Gnd
Gnd
Gnd
PE
PE
41
42
L1
L2
L3
N
PE
PE
KM1
KM2
KM4
S1
(Supp
ly
a
ir T° s
ens
or
)
S3
(Ex
h
au
st
a
ir T° s
en
sor)
S4
(
Ou
td
oo
r T
° sensor
)
Pr10 (
fr
os
t p
rot
ec
ti
o
n
s
en
so
r
)
DP
DP
DP
Y1
-PW
M
P
r4
-Ro
ta
ry
ec
ha
ng
er
ta
ch
om
et
er
DI - Fre
e
ModBus
(fans)
P
r1+
P
r2O
ve
r he
at
S
ecu
rit
y t
he
rm
ost
at
Start
supply air
Start
extraction
Mixing
register
21
11
com
24
14
no
22
12
nc
C
O
2
se
ns
or
Pr
e
ssu
re tran
sm
itte
r (
C
OP)
C
onne
ctor
( E-D
SP d
is
play
)
C
onne
ctor
(R
oo
m touc
h
scr
ee
n d
isp
la
y)
C
o
nn
ecto
r(
Bus
ne
t
M
odb
us
)
M1 M2
Y1 si
gn
al
(hot)
Y2 S
ign
al(ex
ch
an
ger)
Y3 S
ign
al (co
ld)
Ou
td
oo
r ai
r
da
m
per
37
38
Fi
re
al
ar
m
35
36
33
34
31
32
h
igh
s
p
eed
fa
n
cont
ro
l
Start/S
to
p
t C
ha
nge
-o
ve
rThermo
sta
Exchanger electrical
power supply
Electrical power distributor
for the different components
21
11
com
24
14
no
22
12
nc
21
11
com
24
14
no
22
12
nc
D
P
3 (
supp
ly)
DP
4 (
E
xh
au
st
)
D
P
1 a
nd
D
P
2
(ex
haus
t)
su
pp
ly
a
ir
ex
ha
ust
air
Customer main power supply
