Installation
309293J
11
Ventilate the Spray Booth
Check and follow all National, State, and Local codes
regarding air exhaust velocity requirements.
High velocity air exhaust will decrease the operating effi-
ciency of the electrostatic system. The minimum allow-
able air exhaust velocity is 60 linear ft/min (18.3 linear
meters/minute).
Connect the Air Line
1.
Install an air line filter/water separator (M) on the
main air supply line to ensure a dry, clean air supply
to the gun. Dirt and moisture can ruin the appear-
ance of your finished workpiece and can cause the
gun to malfunction.
2.
Install a bleed-type air regulator (N) on the gun air
line (P).
3.
Connect the red-colored Graco Grounded Air Sup-
ply Hose (P) between the gun air regulator (N) and
the gun's air inlet. The gun air inlet fitting has a
left-hand thread. Connect the air supply hose
ground wire (Q) to a true earth ground.
4.
Connect the main air supply line (A) to the
bleed-type air valve (B). The bleed valve shuts off all
air to the system. Install an additional bleed-type air
valve (B) upstream of the air filter (M) to isolate the
filter for servicing.
Ground the Cabinet
Connect the main ground wire (V) to a true earth
ground.
Connect the Waterborne Fluid
Hose
Always use a Graco waterborne fluid hose between the
voltage isolation system fluid outlet and the gun fluid
inlet. See F
IG
. 3.. The waterborne fluid hose (101) con-
sists of an inner PTFE tube (T) and an abrasion-resis-
tant outer jacket (J). Shielded hose 245252 also has a
conductive layer (C), The conductive layer is connected
to ground at the gun fitting bracket (104).
Before connecting the waterborne fluid hose to the gun,
blow it out with air and flush with water to remove con-
taminants. Flush the gun before using it.
WARNING
Flammable or Toxic Vapor Hazard
Provide fresh air ventilation to avoid the
buildup of flammable or toxic vapors. Do not
operate the gun unless ventilation fans are
operating.
WARNING
Electric Shock Hazard
To reduce the risk of electric shock or other
serious injury, you must use the red-colored
Graco Electrically Conductive Air Hose for
the gun air supply hose, and you must con-
nect the hose ground wire to a true earth ground. Do
not use the black or grey-colored Graco air hoses.
WARNING
Pressurized Equipment Hazard
The bleed-type air valve (B) is required in
your system to relieve air trapped between
the valve and the fluid supply unit after the
air regulator (D) is shut off. Trapped air can cause the
fluid supply unit to cycle unexpectedly, which can
result in serious injury, including splashing fluid in the
eyes or on the skin.
WARNING
Electric Shock Hazard
To reduce the risk of electric shock, install
only one continuous Graco waterborne
hose between the isolated fluid supply and
the gun. Do not splice hoses together.
