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F
Ramped control of speed
(i.e with variable speed control)
Variable speed control involves controlling the speed of
the fans proportionally to pollutant levels in a car park.
The EcoVent control system will control a VSD using a
0-10 Vdc analogue signal. This system of speed control
is more energy efficient than 2-speed control as it provides
more precise control of the fan speed against pollution
levels.
Variable Speed JetVent Fans
Using 0-10 Vdc outputs to proportionally drive VSDs
JETVENT ANALOGUE CONTROL SYSTEMS
Main Exhaust
Fan
Variable
Speed
Drive
EcoVent
Zone
Controller
Variable
Speed
Drive
Output
Input
Key
Main Supply
Fan
Variable
Speed
Drive
x
Sinusoidal filter
(only for JISU-CPC Series)
CO/NO Sensors,
up to 22
Applicable Fans Series: JV-CPA, JIU-CPMF, JIU-CPC2, JISU-CPC
CO Concentrations (ppm)
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
2
F-15
JETVENT CAR PARK IMPULSE VENTILATION
© FANTECH
2016