AEC VacTrac Series Conveying Systems - Manual (Page 18)

VacTrac™ Conveying Systems 12-Station Controllers Page 17
2. On all systems, run two wires to each vacuum hopper: one
each from the controller to the Bin-Full switch (
LS ) and to
the Atmospheric/Sequence-T solenoid ( SOL ) valve.
3. Make sure that the solenoid and the proximity switch (if
supplied) on vacuum hoppers are the same voltage (24
VDC) as the VacTrac™ control panel control voltage.
Consult the control panel serial tag and the solenoid valve
nameplates.
4. Wire size depends on control voltage, distance, number of
vacuum hoppers, and the number of wires in each raceway.
Consult a qualified electrician.
5. Properly ground each hopper to reduce static build-up
generated by material conveying.
3-7 Connecting the Control Panel to the Pump
Package
1. Wire the pump package motor starter coil (M) to the
terminal provided in the VacTrac™ control panel
enclosure.
2. Wire the pump package vacuum relief valve solenoid (SOL
A) to the terminal provided in the VacTrac™ control panel
enclosure.
3. Wire the pump package vacuum switch (VS) to the
terminal located in the VacTrac™ control panel enclosure.
4. On VTPB pumps, wire the pump package blowback
solenoid (SOL B) to the terminal located in the VacTrac™
control panel enclosure.