e
3
0
b
a
7
8
2
.1
0
1
2
3
4
5
Illustration 4: The 3 Common Energy Saving Systems
1
Discharge damper
2
Less energy savings
3
Maximum energy savings
4
IGV
5
Costlier installation
e
3
0
b
a
7
7
9
.1
2
0
60
0
60
0
60
0
20
40
60
80
100
Discharge Damper Solution
IGV Solution
VLT Solution
E
n
e
rg
y
c
o
n
s
u
m
e
d
E
n
e
rg
y
c
o
n
s
u
m
e
d
E
n
e
rg
y
c
o
n
s
u
m
e
d
In
p
u
t
p
o
w
e
r
%
Volume %
Illustration 5: Energy Savings
Discharge dampers reduce power consumption. Inlet guide vanes offer a 40% reduction, but are expensive to install. The Danfoss
drive solution reduces energy consumption with more than 50% and is easy to install. It also reduces noise, mechanical stress, and
wear-and-tear, and extends the life span of the entire application.
AJ363928382091en-000101 / 130R0983
16 | Danfoss A/S © 2021.04
Product Overview
VLT® Flow Drive FC 111
Design Guide