Barrier Enclosure Installation; Grounding - Graco 26C266 Manual

Barrier Enclosure

Barrier Enclosure Installation

WARNING
FIRE AND EXPLOSION HAZARD
Do not substitute or modify system components as
this may impair intrinsic safety. Do not install
equipment approved only for a non-hazardous
location in a hazardous location.
STATIC SHOCK HAZARD
Improper grounding, setup, or usage of the system
can cause static shock. To prevent shock:
• Turn off and disconnect power at main switch
before disconnecting any cables and before
installing equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified
electrician and comply with all local codes and
regulations.
With the Barrier Enclosure Assemblies (8) installed, it is
possible to move key components from the
ProDispense Fluid Panel (12) in the non-hazardous
location and to safely install them at the dispensing
station in the hazardous location. These include the
Fluid Flow Meter (10) and the Dispense Valve (13). See
F . 1 and F . 2 on page 7.
IG IG
NOTE: Do not use the solenoid valve provided with the
ProDispense Fluid Panel (12) in hazardous locations.
Only use the new Solenoid Valve (9) provided with the
Barrier Enclosure Assembly (8).
An approved Solenoid Valve (9) and a Fluid Flow
Meter (10) must both be used with a Barrier Enclosure
Assembly (8) when installed in a hazardous location.
6

Grounding

WARNING
This equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
Barrier Enclosures (8): Connect the other end of the
factory-installed ground wire (14) to a true earth ground
using the screw clamp provided. See F
Check the resistance between each barrier enclosure
and true earth ground. If the resistance is 1 ohm or
greater, a different ground site may be required. Do not
operate the system until the problem has been
corrected.
ProDispense Fluid Panels (12): Ground as instructed
in the ProDispense operations manual (3A3469).
Solenoid Valve (9): Must be mounted to a grounded
support structure when moved from the panel into a
hazardous location.
Fluid Flow Meter (10): Must be mounted to a grounded
support structure when moved from the panel into a
hazardous location.
Dispense Valve (13): Must be mounted to a grounded
support structure when moved from the panel into a
hazardous location.
. 1 on page 7.
IG
3A6715B