Plastec Variable Air C - Manual (Page 4)

115 VAC / 12 VDC
Power Supply
Controller
Sensor
Sensor
Signal Input
Sash High Alarm Input
Sash movement
=
Pressure decrease
or increase
Hood Light
on/off relay
Air Make-up
on /off relay
0 to 10V or 4-20mA
Motorized
Damper
Frequency
Inverter
OR
Make-up
Fan
Frequency Inverter
230V – 1Ph input
Plastec ® Extraction
Fan: Speed increase
or decrease
Air speed
monitoring & control
!
If air speed is low
OUTPUT:
0 to 10V
or
4-20mA 230V – 3Ph
Fan on /off
relay
Schematic AirControl C LED & Digital
Inverter System
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net 4
Laboratory Airflow Monitors & Controls
TYPE C STANDARD
LED & DIGITAL - VAV SYSTEM