Ground The System - Graco SaniForce 2150 Operation Manual

Installation
Ground The The System System
Ground Ground The System
The equipment must be grounded to reduce the
risk of static sparking. Static sparking can cause
fumes to ignite or explode. Improper grounding
can cause electric shock.Grounding provides an
escape wire for the electrical current.
Always ground the entire fluid system as
• Always Always
described below.
• Follow your local codes and regulations.
Before operating the pump, ground the system as
explained below.
Pump: All pumps have a ground screw. Loosen
• Pump: Pump:
the grounding screw. Insert one end of a 12–gauge
minimum ground wire behind the ground screw
and tighten the screw securely. Connect the clamp
end of the grounding wire to a true earth ground. A
ground wire and clamp, Part 238909, is available
from Graco.
• Motor: Motor: Motors have a ground screw in the electrical Motor:
box. Use it to ground the motor to the controller.
14
Air Line Line and and Fluid Fluid hoses: hoses: Use only grounded
• Air Air Line and Fluid hoses:
hoses with a maximum of 500 ft (150 m) combined
hose length to ensure grounding continuity. Check
electrical resistance of hoses. If total resistance
to ground exceeds 29 megohms, replace hose
immediately.
• Fluid Fluid supply Fluid supply container: supply container: container: Follow local code.
• Solvent Solvent pails Solvent pails used pails used used when when flushing: when
code. Use only conductive metal pails, placed
on a grounded surface. Do not place the pail
on a nonconductive surface, such as paper or
cardboard, which interrupts grounding continuity.
VFD: Ground the variable frequency drive through
• VFD: VFD:
a proper connection to a power source. Refer to
the VFD manual for grounding instructions.
Check your system electrical continuity after the
initial installation, and then set up a regular schedule
for checking continuity to be sure proper grounding
is maintained. The resistance should not exceed 1
ohm.
flushing: Follow local flushing:
3A5132K