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Installing the System
WARNING
ELECTRIC SHOCK HAZARD
Installing and servicing this equipment
requires access to parts which could
cause an electric shock or other serious
injury if the work is not performed properly.
D Do not install or service this equipment unless
you are trained and qualified.
D Comply with all local, state, and national codes
for the installation of electrical apparatus in a
Class I, Group D, Hazardous Location.
D Comply with all applicable local, state, and
national fire, electrical, and other safety regula-
tions.
Fig. 2, page 10, shows a typical Model PRO 5500wb
waterborne system. Fig. 3 shows the optional ES
Display Modules. The particular type and size system
for your operation must be custom designed for your
needs. For assistance in designing a system, contact
your Graco representative.
Accessories are available from your Graco representa-
tive. Refer to the Product Data Sheet for the gun,
Form No. 305678.
Basic Guidelines
When spraying waterborne fluids electrostatically:
D The gun must be connected to a voltage isolation
system, which isolates the fluid supply from ground
and allows voltage to be maintained at the tip of the
gun.
D The gun must be connected to a voltage isolation
system that will discharge the system voltage when
the gun is not in use.
Installation
D All components of the isolation system that are
charged to high voltage must be contained within a
fence or enclosure that prohibits personnel from
making contact with the high voltage components
before the system voltage is discharged.
D The gun turbine air supply must be interlocked with
the isolation system to shut off the turbine air
supply anytime the isolation system enclosure or
safety fence is opened.
D The voltage isolation system must be interlocked
with the spray area entrance to automatically
discharge the voltage and ground the fluid whenev-
er someone enters the spray area.
D The system should not have any severe arcing
occurring when the isolation mechanism opens and
closes. Severe arcing will shorten the life of the
system components.
Warning Signs
Mount the warning signs, part no. 186118 and 290171,
at the entrance to the spray booth, where it can easily
be seen and read by all operators. Additional warning
signs are available at no charge.
Ventilate the Spray Booth
Electrically interlock the gun turbine air supply with the
ventilators to prevent operation of the electrostatic
power supply unless the ventilating fans are on.
Check and follow all local, state, and national codes
regarding air exhaust velocity requirements. High
velocity air exhaust will decrease the operating effi-
ciency of the electrostatic system. The minimum
allowable air exhaust velocity is 60 linear feet/minute
(18.3 linear meters/minute).
WARNING
TOXIC FLUID HAZARD
Provide fresh air ventilation to avoid the
buildup of toxic vapors. Do not operate
the gun unless the ventilating fans are
on.
308496
9
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Troubleshooting
