Troubleshooting guide

12
United Air Specialists, Inc.
Supra-Blast
Cartridge Dust Collector
Revised 02/02
with the hardware provided. Secure leg assemblies to
the concrete mounting pad with appropriate anchoring
hardware.
4.4 ELECTRICAL INSTALLATION
GENERAL
Several types of standard electrical components can
be installed to control and monitor your dust collector
ensuring proper cleaning of the cartridge filters. A fan
motor starter circuit is required to start and stop the
system. The motor starter circuit should consist of a
properly-sized, fused disconnect or circuit breaker,
contactor and overload relay for short circuit and overload
protection of the blower package. A 115/1/60 low voltage
(2 amp) control circuit is required for the pulse cleaning
controls. Any one of the following control configurations
can be used (refer to Figures 11-13 for wiring schematics):
• Motor starter with Supra-Clean timerboard for
continuous pulse (Magnehelic
®
Guage). Refer to
Figure 11 for recommended wiring.
• Motor starter with Supra-Clean timerboard for
setpoint pulse (Photohelic
®
Guages). Refer to Figure
11 for recommended wiring.
• Motor starter with Supra-View Panel for self-contained
differential pressure display, pulse control and alarm.
Refer to Figure 12 for recommended wiring.
• Motor starter with Supra-I.Q. Diagnostics Panel for
complete monitoring and automated pulse control.
Refer to Figure 13 for recommended wiring.
Refer to UAS sales order to verify the control
configuration purchased with your unit.
4.4.1 MOUNTING OF THE CONTROLS
Mount the motor starter for the fan motor control in a
convenient location. The motor starter is provided by the
customer, unless specifically ordered from UAS.
Mounting hardware for a UAS starter panel is provided
by the customer or contractor.
Mount the solid-state cleaning controls (Supra-Clean,
Supra-View or Supra-I.Q.) in a convenient location. It is
recommended that the controls be mounted on a wall or
pedestal in a convenient area subject to minimal
vibration and electrical noise.
4.4.2 PULSE CLEANING CONTROLS
For a more in-depth explanation of the cleaning control
features and options, refer to Section 5 or the Installation
and Operation Manual supplied with the Supra-Clean
timerboard, Supra-View Panel or Supra-I.Q. Diagnostics
Panel.
4.4.3 SOLENOID VALVE ENCLOSURE WIRING
The solenoid valves at the dust collector must be wired
correctly to the pulse controls. Refer to Figure 14 when
making connections from the pulse controls (Supra-
Clean timerboard, Supra-View Panel or Supra-I.Q.
Diagnostics Panel) to the solenoid valve enclosure(s).
Example: Figure 14 shows the SBD-XX-4 having eight
valve locations per module. This means when the
system pulses, “1” is the first pulse in the sequence, “2”
is the second, “3” is the third, etc.
When multiple dust collector modules are installed, daisy
chain the wiring so that each solenoid valve with the
same module location will pulse at the same time. This
means all #1 solenoid valves are tied together and wired
to pulse controller “OUT 1,” #2 solenoid valves are tied
together and wired to pulse controller “OUT 2,” etc. Refer
to Figure 14 for the Supra-Blast dust collector solenoid
valve wiring information. When cleaning, the pulse valves
sequence left to right, top to bottom.
Unless specified on the UAS sales order, the customer
will supply interconnecting material (conduit, wiring,
etc.) from the pulse controls to the dust collector.
4.4.4 HEATER WIRING
In cold or damp environments, the heater serves to
prevent the electric solenoid valves from freezing due to
cold temperatures or condensation. If optional solenoid
valve heater is purchased, each solenoid valve
enclosure will contain a 100-WATT cartridge heater
internally prewired to a thermostat.
The customer must supply a separate, 100-130VAC,
50-60Hz, 1 amp supply power to the heater circuit for
each module. The supply must be available to the module
solenoid valve enclosure(s) at all time (even when the
blower is shut down) to ensure temperature regulation
inside each solenoid valve enclosure is continual. When
!
CAUTION
All electrical work should be performed by a qualified
electrician in accordance with local electrical codes.
Disconnect electrical power before installing or
servicing any electrical component.
!
CAUTION
Avoid mounting the Supra-Clean, Supra-View or
Supra-I.Q. Panel on the collector due to vibration
generated from blower assembly and the pulsing
system.