Danfoss VLT Flow Drive FC 111 - 3.1.1.8 Traditional Fan System without a Drive

3.1.1.8 Traditional Fan System without a Drive
M
- +
M
M
x6 x6
x6
e75ha205.12
Valve
posi-
tion
Starter
Fuses
LV
supply
P.F.C
Flow
3-Port
valve
Bypass
Return
Control
Supply
air
V.A.V
outlets
Duct
P.F.C
Mains
Fuses
Starter
Bypass
supply
LV
Return
valve
3-Port
Flow
Control
Valve
posi-
tion
Starter
Power
Factor
Correction
Mains
IGV
Mechanical
linkage
and vanes
Fan
Motor
or
actuator
Main
B.M.S
Local
D.D.C.
control
Sensors
PT
Pressure
control
signal
0/10V
Temperature
control
signal
0/10V
Control
Mains
Cooling section Heating section
Fan sectionInlet guide vane
Pump Pump
Illustration 9: Traditional Fan System without a Drive
D.D.C.
Direct digital control
E.M.S.
Energy management system
V.A.V.
Variable air volume
Sensor
P
Pressure
Sensor
T
Temperature
AJ363928382091en-000101 / 130R0983 | 19Danfoss A/S © 2021.04
Product Overview
VLT® Flow Drive FC 111
Design Guide