Melink Corporation (513) 965-7300 www.melinkcorp.com
3-phase
input from
breaker or
magnetic
motor starter
The location must be relatively free of dirt,
grease, and water. The ambient tempera-
ture must be between +14 degrees F and
+122 degrees F. There should be 5” of
clearance on the top and bottom and 1” on
the sides for adequate ventilation/cooling.
Install Electronic Motor Starter
C
1”
5”
5”
1”
E
D
3-Phase
Input
3-Phase
Output
Mount each VFD with appropriate fasteners.
Then install separate conduit for the input
and output power wiring to prevent electrical
interference between the conductors.
L1
L2
L3
U
V
BR+
W
G
BR-
3-phase
output to
fan motor
Remove the VFD top cover and connect
the line voltage wiring to the VFD input
power terminal block as shown above.
Then connect the output power from the
terminal block to the respective fan motor
on the roof. The ground wire must be a
minimum of 14 AWG and as short as pos-
sible.
The output wiring for each VFD
MUST be in a separate conduit run.
7
2
For retrofits,
each VFD is typically
mounted on the output side of the exist-
ing motor starter, which is often located
in an electrical room, above the hoods,
or inside a utility cabinet.
For new con-
struction,
the hood manufacturer typi-
cally provides a utility cabinet in which to
mount the VFDs.
Select VFD Location
Check VFD Location
Mount VFD
Wire VFD
MELINK
Intelli-Hood
Controls
®
®
B
