System Diagram
VEKTOR ROOF
EXHAUST FAN
EXHAUST DUCT
STATIC PRESSURE
TRANSDUCER BOX
1/4 INCH PRESSURE TUBING
STATIC PRESSURE PROBE
BYPASS DAMPER ACTUATOR
(MODULATING)
(CONTROLLER BY BMS)
ISOLATION DAMPER WIRING
TO VFD BY OTHERS
MOTOR WIRING
VFD POWER WIRING
1/4 INCH PRESSURE TUBING
VGN NOZZLE
WITH MODULATING ACTUATOR(S)
ISOLATION DAMPER
WITH OPEN/CLOSE ACTUATOR
TO BMS CONTROL
DUCT PRESSURE
CONTROL
VFD PROVIDED AND
PROGRAMMED BY OTHERS
STATIC PRESSURE TRANSDUCER
AND TERMINAL BOX SHIPPED LOOSE
(INSTALLED BY OTHERS)
SERVICE
DISCONNECT
SWITCH
ROOF LINE
NOZZLE FEEDBACK
NOZZLE CONTROLLER
CONTROLLER
POWER WIRING
ANALOG SIGNAL(S)
VFD COMMUNICATION
FAN RUNNING
STATUS CONTACT
ALL GFC PROVIDED
CONTROL DEVICES
ARE 24V POWER
NOTES:
- All wiring in rigid metal conduit or flexible
metal conduit and liquid tight.
- All tubing and conduit to be UV resistant
for outdoor use.
WIRING BY GFC
EQUIPMENT BY GFC
WIRING BY OTHERS
EQUIPMENT BY OTHERS
Electrical Controls Information for Customer-Supplied Variable Frequency Drive
18
VGN Technology
®