Specifications

2.7.11 With a Frequency Converter
175HA206.11
Pump
Flow
Return
Supply
air
V.A.V
outlets
Duct
Mains
Pump
Return
Flow
Mains
Fan
Main
B.M.S
Local
D.D.C.
control
Sensors
Mains
Cooling section Heating section
Fan section
Pressure
control
0-10V
or
0/4-20mA
Control
temperature
0-10V
or
0/4-20mA
Control
temperature
0-10V
or
0/4-20mA
VLT
M
-+
VLT
M
M
PT
VLT
x3 x3
x3
Illustration 2.10 Fan System Controlled by Frequency Converters
Introduction VLT® HVAC Drive FC 102 Design Guide
MG16C102 - Rev. 2013-08-20 23
2
2