NSGV SERIES “CYCLONE” DUST COLLECTOR
I, O, & M MANUAL
TROUBLESHOOTING
PROBLEM PROBABLE
CAUSE
REMEDY
Improper motor wire size
Rewire using correct wire gauge as specified by national and local codes
Not
wired
correctly
Check and correct motor wiring for supply voltage. See motor
manufacturer’s wiring diagram. Follow wiring diagram and the National
Electric Code.
Unit not wired for available voltage
Correct wiring for proper supply voltage. A 10% differential is permissible.
Input circuit down
Check proper supply to motor circuit on all leads.
Blower Fan &
Motor Do Not
Start
Electrical supply circuit down
Check power supply circuit for proper voltage. Check for fuse or circuit
breaker fault. Replace as necessary.
Blower rotation backwards
Proper blower rotation is clockwise when looking down at the blower
motor.
Incorrect motor-starter installed
Check for proper motor starter and replace if necessary.
Incorrect motor heater coil installed
Check and replace as necessary.
Starter or supply voltage connections
loose
Check all wiring connections for tightness. Loose connections can cause
single phasing on three-phase circuits and heater coil damage. Motor
hum or growling is an indication of this condition.
Dust storage container is leaking or 55-
gallon drum cover is loose
Check for large leaks in the storage chamber. Check the 55-gallon drum
cover gasket and that the drum cover is fastened securely.
Motor Runs Hot,
Starter Kicks
Out
Electrical circuit overload
Check that the power supply circuit has sufficient power to run all
equipment.
Unit not wired for available voltage
Correct wiring for proper supply voltage. A 10% differential is permissible.
Blower rotation backwards
Proper blower rotation is clockwise when looking down at the blower
motor.
Dust storage container leaking or 55-
gallon drum cover is loose
Check for large leaks in the storage chamber. Check the 55-gallon drum
cover gasket and that the drum cover is fastened securely.
Large diameter branch in extended length
duct system
Install blast gate.
Improper duct or hood size
Check and replace if necessary.
Fan exhaust area restricted
Check blower exhaust area for obstructions. Remove material or debris.
Adjust damper flow control.
Obstruction in duct
Check and remove obstructions.
Filter bags plugged
Check and clean or replace if necessary.
Insufficient
Airflow
Grinding or polishing equipment in use
Increase air flow to compensate for equipment that creates its own air
circulation.
9
National System of Garage Ventilation
714 N. Church St. / P.O. Box 1186
Decatur, IL 62525
(217)423-7314 / (800)728-8368 / (fax)(217)422-5387
NSGV.com
JMDILLIGAF@aol.com
