Installation; Install The System - Graco PRO Auto Xs Instructions-Parts List Manual

Installation

Install the System

WARNING
Fire, Explosion, and Electric Shock Hazard
Installing and servicing this equipment
requires access to parts which may cause
electric shock or other serious injury if work
is not performed properly.
•Do not install or service this equipment
unless you are trained and qualified.
•Be sure your installation complies with all
National, State and Local safety and fire
codes, NFPA 33, NEC 504 and 516, and
OSHA standard 1910.107.
F . 2. shows a typical electrostatic air spray system,
IG
and F . 3. shows possible system options. It is not an
IG
actual system design. For assistance in designing a sys-
tem to suit your particular needs, contact your Graco
distributor.
309457G
Basic Guidelines
When spraying waterborne fluids electrostatically:
• 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.
• The gun must be connected to a voltage isolation
system that will discharge the system voltage when
the gun is not in use.
• All components of the isolation system that are
charged to high voltage must be contained within a
fence or enclosure that prohibits persons from mak-
ing contact with the high voltage components before
the system voltage is discharged.
• 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.
• The voltage isolation system must be interlocked
with the spray area entrance to automatically dis-
charge the voltage and ground the fluid whenever
someone enters the spray area.
• The system should not have any severe arcing
occurring when the isolation mechanism opens and
closes. Severe arcing will shorten the life of the sys-
tem components.
Graco Waterborne Fluid Hose
Use a Graco waterborne fluid hose between the voltage
isolation system fluid outlet and the gun fluid inlet. See
Accessories on page 56 for available hoses. The hose
consists of an inner PTFE tube, a conductive layer cov-
ering the PTFE tube, and an outer cover.
If a hose failure occurs where high voltage arcs through
the inner tube, voltage will be discharged to ground
through the conductive hose layer. When properly
installed, the conductive hose layer is grounded through
its connection to the grounded enclosure.
Installation
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