Ambirad NRV12LR, Installation Instructions Manual, Page: 15 / 28

15
THE
LOCAL RELAY UNIT
ho
uses an inverter. This
con
v
e
rts the 230V
si
n
g
le
-phase input into a
th
ree-pha
se 230V
output. The
inve
rt
e
r provides a
soft start
to
t
h
e motor
,
w
h
ich exte
nds the motor li
fe
by minimising the star
t
cur
rent.
Inverter
Local Relay
Unit
S
u
p
p
ly
v
ia Isolator
2
3
0
V
50Hz
1 Pha
SU
PP
LY
V
IA
I
SO
L
AT
O
R
E
L
EC
TRIC
AL
INPU
T
2
30V
1P
22A
2
30V
1P
22A
2
30V
1P 3
0
A
FA
N
TY
P
E
B8
0
B
160
B
300
Burners
Zone A
L
L
NN
U
V
W1
34
2
Dra
w
ing
N
o
. : 9
0
0
287 R
6
S
upp
ly
t
o
i
n
line
burners
Exhaus
t
Fan
4-
Cor
e Armour
ed or
Scree
ned Ca
ble 1.5mm
²
FA
N M
O
T
O
R
2
30V
3-Pha
s
e Supply.
M
o
tor must be wi
re
d
DELTA
3 Phase
Isol
a
tor
MP
O
RT
A
NT
Fo
r Inv
e
rt
er p
a
n
e
ls
only
(f
an
ty
pe
s B
80
/ B1
60
& B3
00)
:
MA
X
IMU
M l
e
ng
th o
f ca
bl
e
be
tw
ee
n
in
ve
rt
e
r
a
nd f
a
n
i
s
5m
(
E
MC
cla
s
s
A b
uildi
ng)
o
r
1
0
m
(EM
C
c
las
s B
bu
ilding
).
N
.B
. if in
do
ubt,
d
o
n
o
t
ex
ce
ed 5m
.
(H EAT 1 O UTPU T)
(LIVE)
(NEU TRAL)
NO
TE
S:
R
E
M
O
T
E
SW
IT
CH
IN
PUT
S
shoul
d be
connect
ed
by
6
A
ma
in
s
M
a
x
lengt
h is
1
0
0
m
.
Low volt
age
sw
it
ching i
npu
ts
t
o
be
norm
a
lly open
(closed
ci
rcui
t t
o
enabl
e).
C
onnect to
B0 & B1 f
o
r remot
e
O
N
(i
e
BM
S ti
me con
tr
o
l)
.
C
onnect to
B0 & B2 f
o
r re
m
o
te
OFF (
ie
door int
erlo
ck.
remo
te
fr
o
s
t e
tc).
*Th
e
po
we
r sup
p
ly
i
s
no
n-is
olated
,
th
e
re
fo
re
a
ll wiring
to
the
co
ntro
l mu
st be
ma
ins
rate
d.
RE
MO
TE
S
E
N
S
O
R
(s
)
may
be
pl
aced at
a
m
ax
dist
a
nce
o
f
100
m
fr
om the control uni
t,
usi
ng
screened 6A
main
s* ca
bl
e.
Wiring should be
kep
t sep
arat
e
fr
om m
ai
ns
wi
ri
ng t
o mi
ni
mi
se
noi
se pi
ck up.
Set
w
it
hi
n
E
ng
in
eers
functi
ons
fo
r rem
o
te
sen
s
or.
*Th
e
po
we
r sup
p
ly
i
s
no
n-is
olated
,
th
e
re
fo
re
a
ll wiring
to
the
co
ntro
l mu
st be
ma
ins
rate
d.
Lo
w Vo
lt
ag
e
+15V
DC
Bl
ac
k B
ul
b
Se
ns
o
r
(FAN CI RCUIT )
(FAN CI RCUIT )
V
o
lt
fr
ee
Fan Tri
p
Indi
cat
io
n
by ot
hers
No
te:
Con
nec
ti
on
to the
bur
ners
MU
S
T
be made
v
ia a
3A
fuse
d
sp
ur.
!
!
FUSE
RATI
N
G
!
41
40
95
1/
L
2/
N
10
6
B1
B0
B2
S/
R
0S/
R
1
C
SmartCom
S
ing
le
zo
ne
NEU
T
LIVE
(COMMO N)
(REM OT E O N)
(R EM OTE OF F)
eg
D
oo
r
Re
m
ot
e
OF
F
(whe
re ap
pli
c
ab
le
)
R
emot
e ON
(whe
re ap
pli
c
ab
le
)
e
g B.
M.S.
Figure 4.l. NRV Schematic interconnecting wiring. B80, B160 and B300 three phase fans
controlled by SmartCom3 via single phase Inverter panel. (single zone shown)