Dust-Hog SUPRA-CONIC Troubleshooting Guide download pdf (Page 31)

supply interconnecting signal cord and mounting

hardware for remote blower start/stop assembly

installation. Remove jumper between terminals L and 20

in the combination magnetic motor/blower starter control

package as shown in Figure 11, 12 or 13.

5. OPERATION

5.1 START-UP

Inspect the installation area and make certain no tools,

parts, etc., have been left anywhere on or inside the

Supra-Blast unit. Check blower discharge to make

certain it is free from all debris.

Start motor/blower and check for proper rotation. A

rotation arrow is located on the blower housing. All top-

mount blower assemblies rotate in a clockwise rotation as

viewed from the driven end (motor end with motor cooling

fan). If the blower is rotating in the opposite direction,

disconnect the power to the motor starter. For 3-phase

blowers, interchange any two power wires to the motor at

the load side of the motor starter contactor. For single-

phase power, refer to motor nameplate for which two

wires to interchange at motor junction box. Engage

starter disconnect, start blower and recheck rotation.

NOTE: Proper blower rotation is required to move the

designed amount of air. A blower rotating in the

incorrect direction will only move about 40% of

design airflow.

NOTE: It is important that the air volume of the dust

collection system is at design conditions at

system start-up. There is a minimal pressure

differential across new cartridge filters. If the

volume control damper is not correctly

adjusted, the air volume will be above design

conditions for airflow and may affect the

cartridge filter life.

The air volume should be adjusted based on the

performance of the entire system. Air volume control

damper adjusted to the system design conditions.

Closing the volume control damper decreases system

airflow. Opening the volume control damper increases

system airflow.

On certain applications, it may be beneficial to “seed” or

pre-coat the original or replacement cartridge filters. This

process introduces a certain amount of coating

particulate (usually crushed limestone, agricultural lime or

other specifically marketed pre-coat) in light

concentration to deposit a thin coating of material which

acts as an aid to filtration. This deposited dust cake keeps

the dust loading on the surface of the cartridge filter. This

process will increase filter life and efficiency while

allowing the cleaning system to operate more effectively.

For filter seeding procedures, refer to Section 6.2.

Turn on the compressed air supply to the dust collector

air manifold reservoir. Adjust the pressure regulator until

the gauge reads 90-110 PSIG (6.2-7.6 BAR).

5.2 CHECKLIST

Check the discharge of the blower assembly. Initially,

some dust may discharge from the blower assembly as

the filters are seasoned. This may last several minutes

after which the discharge air should remain visibly clean.

Measure the total airflow and static pressure at the inlet

to the Supra-Blast unit. Adjust the blower outlet damper

for the desired airflow. Check to ensure that adequate

air is being drawn into each of the collection points of

the system. Adjust the individual dampers for each

operation to balance the system airflow. Recheck the

total system airflow and adjust the blower damper to

desired system airflow. This procedure may need to be

repeated several times until the entire system is within

system design airflow specifications.

CAUTION

Verify dust collector system airflow is adjusted to design

conditions with a new, clean filter using the volume control

dampers installed in the system. Failure to properly

adjust system airflow may affect cartridge filter life.

United Air Specialists, Inc.

Supra-Blast

Cartridge Dust Collector

Revised 02/02

CAUTION

Shut off unit disconnect and lock out all electrical power

to the dust collector prior to performing service work.

CAUTION

Prior to unit start-up, all installation set-up instructions

must be completed as specified by this manual, the

Supra-Clean

Installation and Operation Manual

Supra-View

Installation and Operation Manual

, Supra-

I.Q.

Installation and Operation Manual

, as well as any

manuals supplied by other equipment manufacturers,

as they apply to your dust collector.

CAUTION

The blower assembly provided by United Air

Specialists, Inc. includes an outlet damper. If the

blower assembly was purchased separately, ensure a

volume control damper is included somewhere in the

dust collection system. Close the blower discharge

damper to the 50% open position and tighten in place.

If a volume control damper is provided in another part

of the dust collection system, adjust second damper

to the 50% open position and tighten in place.

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Dust-Hog SUPRA-CONIC Troubleshooting Guide Page 31

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