Grounding - Graco ProMix PD2K Installation Manual

Grounding

Grounding
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.
Electrical Control Box
The electrical control box has two ground points.
Both connections must be made.
• Connect the ground wire (Y) to the ground screw
on the electrical control box. Connect the clamp
end to a true earth ground.
• The power supply must be grounded according to
local codes. Connect the power supply ground
wire to the Ground terminal in the electrical control
box. See Electrical Connections, page
Figure 22 Ground Screw and Power Switch
Fluid Supply Container
Follow local code.
38
Booth Control
The booth control is grounded through intrinsically
safe cable connections to the electrical control box.
Attach a separate ground wire to the
booth control mounting bracket. See
Install the Booth Control, page
Color Change Module
Connect a ground wire from the color change module
to a true earth ground.
Intrinsically safe color change modules located in the
hazardous area must be connected to a true earth
ground in the hazardous area.
Feed Pumps or Pressure Pots
Connect a ground wire and clamp from a true earth
ground to the pumps or pots. See pump or pressure
pot manual.
37.
Air and Fluid Hoses
Use grounded hoses only.
Spray Gun
Follow the grounding instructions in your gun manual.
• Non-Electrostatic: Ground the spray gun through
connection to a Graco-approved grounded fluid
supply hose.
• Electrostatic: Ground the spray gun through
connection to a Graco-approved grounded air
supply hose. Connect the air hose ground wire to
a true earth ground.
28.
332457H