knobs located on the front of the Photohelic gage or the keypad on the digital sensor
module. Adjustments can be made as required to accommodate various process
variables and to maintain the filters at their optimum efficiency.
Integrated Control Panel (ICP). An optional NEMA 12 ICP is available with controls for
starting up to four (4) AirWall unit’s along with their on-demand filter cleaning controls.
These controls include:
MAIN POWER - Disconnect switch
PURGE CONTROL - OFF indicator light and MAN/OFF/AUTO selector switch
FAN MOTORS - RUN indicator light and START/STOP selector switch
FILTER PRESSURE - Photohelic gage and switch or digital sensor module
MAIN POWER
This switch provides on/off switching and over-current protection for the
Integrated Control Panel
PURGE CONTROL
The FILTER PURGE controls consist of the OFF indicator light and the MAN/-
OFF/AUTO selector switch. The MAN/OFF/AUTO selector switch controls the
operation of the Photohelic gage and switch or digital sensor module and must
be in the AUTO position to enable on-demand cleaning..
When the selector switch is set to the MAN (manual) position the reverse pulse
solenoids will activate sequentially every 8 seconds (adjustable between 8-180
seconds). This filter cartridge cleaning cycle will continue until the switch is set
to the OFF or AUTO position.
When the selector switch is set to the OFF position, operation of the reverse
pulse solenoids is disabled and the OFF indicator light is illuminated.
When the selector switch is set to the AUTO position and the AirWall unit fan is
running, the operation of the reverse pulse solenoids is determined by the setting
of the Photohelic pressure gage and switch. The cleaning pulses will continue
until the Photohelic low setpoint is reached, the dust collector fans are stopped,
or the MAN/OFF/AUTO selector switch is set to the OFF or MAN (manual)
position.
FAN MOTOR
