96
AHU Kit – Installation Instructions – 09/2021
Electrical Wiring
5
Two suitable methods will be explained in the following sections. All wiring diagrams are just exam
-
ples. It is not necessary to build the electric circuit with 230 V AC. Any other suitable lower voltage
being available on site may be used as well.
Method A: For standard fan control
For systems with standard fan control, the external signal lines can simply be connected to the
contacts provided by the AHU Kit. The following installation requirements must be observed.
For MAH2/PAH2 generation models
●
Blower signal output: terminals D4 (IZ-5) and D5 (IZ-3).
Blower protection input: terminals D6 (OP3) and D7 (2Z-7).
Detail view
10P Connector / Section D
Blower signal output Blower protection
4 5 6 7
1 2 3 4 5 6 7 8 9 10
●
Blower signal and blower protection lines must be routed through left wiring port below
the terminal board.
For PAH3 generation models
● Blower signal output: terminals F1 (X2.1) and F2 (X2.2).
● Max. 8 A / 230 V AC, potential free
Detail view
Blower signal output
X1
Te
rm
in
al
N
o.
Al
lo
ca
�
on
Fun
c
�
on
De
sc
rip
�
on
L
X1
.1
Live
Live
T
er
m
in
al
Ex
te
rn
al
P
ot
en
�al
: 2
30
V
A
C,
m
ax
. 1
A
N
X1
.2
Ne
ut
ra
l
Ne
ut
ra
l T
er
m
in
al
3
X1
.3
Comm
Commun
ica
�
on
te
rm
in
al
In
te
rn
al
p
ot
en
�
al
0
-
75
V
D
C
PE
X1
.4
Pro
te
c
�
ve
e
ar
th
Pro
te
c
�
ve
E
ar
th
Con
duc
tor
X2
F1
X2
.1
Po
te
n
�al
for
F2
F2
X2
.2
Fa
n con
ta
ct
X3
FS
1
X3
.1
Po
te
n
�al
for
FS
2
FS
2
X3
.2
Fl
oa
t s
w
itch
FD
1
X3
.3
Po
te
n
�al
for
FD
2
FD
2
X3
.4
Fa
n
Si
gn
al
EX
1
X3
.5
Po
te
n
�al
for
EX
CT
EX
2
X3
.6
EX
CT
-C
on
ta
ct
X4
TA
1
X4
.1
No
po
la
rit
y
TA
2
X4
.2
No
po
la
rit
y
E1
.1
X4
.3
No
po
la
rit
y
E1
.2
X4
.4
No
po
la
rit
y
E2
.1
X4
.5
No
po
la
rit
y
E2
.2
X4
.6
No
po
la
rit
y
OP
1
X4
.7
12
V
D
C
12
V
D
C
OP
2
X4
.8
Po
te
n
�al
o
f D
ef
ro
st
De
fro
st
si
gn
al
o
ut
put
OP
3
X4
.9
Po
te
n
�al
for
The
rmo
st
at
The
rmo
st
at
si
gn
al
o
ut
put
OP
4
X4
.1
0
Po
te
n
�al
for
Co
ol
st
art
Co
ol
op
er
a
�
on
si
gn
al
o
ut
pu
t
OP
5
X4
.1
1
Po
te
n
�al
for Hea
t s
ta
rt
He
at
op
er
a
�
on
si
gn
al
o
ut
put
OP
6
X4
.1
2
Po
te
n
�al
for
Fa
n
st
art
Fa
n
(fr
ee
co
oli
ng
) o
pe
ra
�
on
si
gn
al
o
ut
put
OT
1
X4
.1
3
Po
te
n
�al
for
OT
2
- O
T6
CO
M
OT
2
X4
.1
4
He
at
input
He
at
mod
e
input
OT
3
X4
.1
5
Co
ol
input
Co
ol
mod
e
input
OT
4
X4
.1
6
De
mand
Inpu
t 1
LV
1 demand
con
tro
l i
nput
OT
5
X4
.1
7
De
mand
Inpu
t 2
LV
2 demand
con
tro
l /
Q
UI
ET
input
OT
6
X4
.1
8
De
mand
Inpu
t 3
LV
3 demand
con
tro
l /
E
XC
T
(forc
ib
ly
the
rmo
st
at
o
ff
) i
nput
X5
U1
X5
.1
No
po
la
rit
y
U2
X5
.2
No
po
la
rit
y
R1
X5
.3
No
po
la
rit
y
R2
X5
.4
No
po
la
rit
y
R1
X5
.5
No
po
la
rit
y
R2
X5
.6
No
po
la
rit
y
X6
M
2.1
X6
.1
4
- 2
0 mA
M
2.2
X6
.2
Po
te
n
�al
o
f M
2.1
M
2.3
X6
.3
0
to
10
V
D
C
An
al
ogu
e
inpu
t (
+1
0
V
DC
) f
or dem
and con
tro
l /
temp
er
at
ur
e con
trol
M
2.4
X6
.4
Po
te
n
�al
o
f M
2.3
An
al
og
inpu
t N
eg
a
�
ve
p
ot
en
�
al
(–
10
V
D
C)
for dem
and
con
tro
l /
temp
er
at
ur
e
se
�
ng
M
2.5
X6
.5
No
po
la
rit
y
M
2.6
X6
.6
No
po
la
rit
y
CO
M
X6
.7
Po
te
n
�al
for
DI
1
to
D
I3
DI1
X6
.8
Di
gi
tal
Inpu
t 3
DI2
X6
.9
Di
gi
tal
Inpu
t 2
DI3
X6
.1
0
Di
gi
tal
Inpu
t 1
CO
M
X6
.1
1
Po
te
n
�al
for
DO
2
DO
2
X6
.1
2
Al
arm
Si
gn
al
CO
M
X6
.1
3
Po
te
n
�al
for
DO
1
DO
1
X6
.1
4
Ope
ra
�
on
S
ig
na
l
Ala
rm
Si
gn
al
Ex
te
rn
al
P
ot
en
�al
: m
ax
. 230
V
A
C
/ 3
A
Ope
ra
�
on
S
ig
na
l
Ex
te
rn
al
P
ot
en
�al
: m
ax
. 230
V
A
C
/ 3
A
Fa
n
Ope
ra
�
on
S
ig
na
l
Ex
te
rn
al
P
ot
en
�al
: m
ax
. 250
V
AC
8
A
2
ty
pe
s o
f u
sa
ge:
a)
P
ot
en
�al
-fr
ee:
Ke
ep
S3
o
f C
Z-
CA
PB
C
2/
ACC
-S
P1
A
on
“N
ON
V
OL
TA
GE
”.
b)
1
2
to
24
V
D
C,
1
0 m
A e
xt
er
na
l:
Ch
an
ge
S3
o
f C
Z-
CA
PB
C2
/
ACC
-S
P1
A
to
“V
OL
TA
GE
”.
Di
gi
ta
l I
npu
ts
(F
or
in
form
a
�
on
on
func
�
on
al
ity
re
fe
r t
o
se
c
�
on
“T
er
m
in
al
la
you
t –
CZ
-C
AP
BC
2
/ A
CC
-S
P1
A“
in
th
is d
ocu
m
en
t)
EX
CT
-C
on
ta
ct
(e
xt
er
nal
the
rmo
st
at
o
ff
sw
itch)
In
te
rn
al
P
ot
en
�
al
: 5
V
D
C
Con
tro
l o
f a
n
add
i
�
on
al
e
xt
er
na
l f
an
or
add
i
�
on
al
e
xt
er
nal
ai
r h
and
lin
g un
it
In
te
rn
al
p
ot
en
�
al
: 1
2
V
DC
Fl
oa
t s
w
itch
(e
x f
ac
tor
y br
id
ge
d)
In
te
rn
al
P
ot
en
�
al
: 1
2
V
DC
Se
ns
or
E1
/
TH2
Se
ns
or
E2
/
TH3
Requ
ire
d
for cen
tr
ali
zed
con
tro
ller
Suc
�
on
T
emp
er
at
ur
e
Sen
sor
TA
(i
nc
luded)
(R
oo
m
Te
mp
er
at
ur
e
Sen
sor)
Commun
ica
�
on
bu
s w
iri
ng
P
-li
nk
Te
rm
in
al
for
Grou
p
W
iri
ng
(R
C con
ne
c
�
on
)
In
te
rn
al
P
ot
en
�
al
: 1
6
V
DC
In
te
rn
al
P
ot
en
�
al
: 1
6
V
DC
Te
rm
in
al
for
Grou
p
W
iri
ng
(R
C con
ne
c
�
on
)
12
V
D
C rel
ay
requ
ire
d
for e
ach
sig
nal
o
ut
pu
t,
fi
el
d
supp
lied
Demand con
tro
l, Q
UI
ET
a
nd
EX
CT
inpu
ts
mu
st
be
se
t u
sin
g
indo
or un
it de
ta
iled
se
�
ng
s,
p
ar
ame
te
r cod
e
0002
EE
,
pl
ea
se
se
e rele
va
nt
te
chn
ica
l d
at
a
se
rv
ice
m
anu
al
for
de
ta
ils
. 5
V
D
C
0.
5m
A
Curr
en
t i
nput
5
V
DC
0
.5
m
A
Curr
en
t i
nput
An
al
og ou
tpu
t (
Ro
om
temp
er
at
ur
e mon
itor
),
Indo
or
temp
er
at
ur
e mon
itor
ou
tpu
t.
Ou
tpu
t cur
ren
t :
4
to
20
m
A.
Temp
er
at
ur
e
ind
ica
�
on
ra
ng
e
: 5
to
36
°C
, 0
.5
°C
st
ep
An
al
ogu
e
ou
tpu
t t
er
m
in
al
s
An
al
ogu
e
inpu
t t
er
m
in
al
s f
or
temp
er
at
ur
e
and demand
con
trol
Ac
�
va
�
on
o
f demand
con
trol
In
se
rt
br
id
ge
to
a
c
�
va
te
temp
er
at
ur
e con
tro
l (
sy
st
em
is
se
t
for dem
and con
tro
l a
s s
ta
nd
ard)
1
2
06.08.2021, JW
This explanation is valid only for 2-gen. AHU kits.
Here needs to be added also 3-gen. AHU kit pic-
ture and diagram. For this case, blower signal out-
put will be F1&F2. There is only a signal output,
but no protection input. Max. 8A 230 VAC poten-
tial free.
Summary of Contents for PAW-160MAH2L
Page 2: ...Notes ...
Page 113: ...Notes ...