UNIT OPERATION:
To start the unit, turn the switch located on the front of the unit to the on position. To stop the unit, turn the
switch to the off position.
On some units (depending on how the table was ordered) the light may be wired directly into the on/off
switch. If this is the case, the light will turn on with the motor. (Bulbs are not supplied with the unit and must
be purchased separately.)
CARTRIDGE CLEANING OPERATION:
The Superior Downdraft Table is designed with the Power-Pulse Cleaning System
to clean the cartridge filters. This system provides superior cleaning performance using a rotating tube with pre-
drilled holes. As the diaphragm valve opens, the Power-Pulse
tube rotates while air exits the holes, thus providing
the cleaning of the cartridge.
•
For proper cleaning, the compressed air pressure should be regulated at 80 - 90 psi maximum.
•
During normal operation the Power-Pulse
cleaning system is factory set to clean two (2) cartridge
filters for a
period of 2 seconds every 45 seconds.
•
Once the unit is turned off, the cleaning cycle will continue for a period of five minutes. Do not
service the
filters until cleaning is complete.
•
The Power-Pulse
cleaning operation dislodges particles from the cartridges. Particles then fall
down into the
collector.
NOTE: When servicing the collection system, be sure to turn the unit off.
TIMER ADJUSTMENTS: (If equipped)
The table is provided with a manual pulse option as the standard for all units. The filters can be pulse cleaned by
depressing the brass pulse button (located on the front of the electrical box) and holding it down for approximately
2 seconds. If the unit does not have “Auto-Pulse” the filters should be pulse cleaned regularly throughout the day.
In addition, they should be pulsed several times after the blower has been shut off.
If the table is equipped with the “Auto-Pulse” feature, the table will automatically pulse every 45 seconds during
operation. Pulsing will stop when the unit
is shut off. Additional pulsing can be performed manually, by depressing the pulse button, if required.
POWER-PULSE CLEANING TIMER ADJUSTMENTS
1. Turn unit off via the stop switch and disconnect power.
2. Remove the electrical box cover.
3. The timer control is preset at the factory to clean two (2) cartridge filters every 45 seconds. This time can be
adjusted from 8 seconds to 180 seconds by rotating the dial on the timer marked “OFF TIME”.
4. The timer control is preset at the factory to have a cleaning pulse duration of 2-seconds. This can be adjusted
from 0.5 second to 5 seconds by rotating the dial on the timer marked “ON TIME”
5. Once adjustments have been made replace the electrical box cover and reconnect the power.
6. Start the unit and observe the new pulse settings and determine if additional adjustments are necessary.
NOTE:
While this time can be adjusted we recommend that you leave the “ON TIME” at the factory setting. If less
cleaning is needed you should increase the time between pulses as means of reducing the amount of cleaning. If
more cleaning is needed you should decrease the amount of time between pulses. Beware, as the time between
pulses is decreased for additional cleaning, this will increase your com- pressed air consumption and create an
additional load on your compressed air system.
NOTE:
Cleaning of the filters too often will decrease your level of performance. A certain level of dust cake on the
filters will improve the efficiency of the filter cartridges.
You should try to maintain a minimum of 1 in w.c. of pressure differential across the filters. If you can not maintain
this minimum level of differential across the filters the time between cleaning pulses should be increased until this
can be achieved.
