
14
Figure 4.j. NRV Inverter Internal Wiring Diagram for B80, B160 and B300 three phase fans
Figure 4.k. NRV Local Relay Unit Internal Wiring Diagram for BH300 three phase fans
Circuit
VF Enable
NL NL
1 Ph Supply
230V 50Hz
LEN
VUW
4
3Ph Supply
To Fan
TERMINAL RAIL
Brown
Green/Yellow
Violet
Orange
RA
15V LI1
R/L1
S/L2
RC
V.S.D.1
AI10V
W/T3
U/T1
V/T2
EL
230V 50HZ 1 Pha SUPPLY
MAINS ON LAMP
FAN HEALTHY LAMP
TO FAN
tW
tU
tV
Blue
N
t1 t2
Brown
Fan Trip
Circuit
A1
A2
t3 t4
11
12
Brown
Brown
3
21
EE
Circuit
VF Enable
NL NL
3 Ph Supply
415V 50Hz
LEN
VUW
4
3Ph Supply
To Fan
TERMINAL RAIL
Brown
Green/Yellow
3
98 97
Contactor
6
2
4
EL
415V 50HZ 3 Pha SUPPLY
MAINS ON LAMP
TO FAN
tU
tW
tV
Blue
N
t4 t3
Fan Trip
Circuit
3
21
EE
312
Black
Grey
LL
2
1
Brown
Brown
95 A214
FAN HEALTHY
t1 t2
96 A113
LL
3211
LL
321
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