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312359J 21
Wire Sprayers with
Explosion-Proof Heaters
(Hazardous location sprayers only)
Improperly installed or connected equipment will create
a hazardous condition and cause fire, explosion, or elec-
tric shock. Follow local regulations.
When explosion-proof heaters are used, ensure wiring,
wiring connections, switches, and electrical distribution
panel all meet flame-proof (explosion-proof) require-
ments.
Refer to Viscon HP heater manual 309524 for electrical
connection instructions and guidelines in hazardous
locations.
Connect Air Supply
Connect air supply line to 3/4 npt(f) air filter inlet.
NOTE:
Use a 3/4 in. (19.1 mm) ID minimum air hose.
NOTE:
Air supply requirement: 150 psi (1.0 MPa, 10.3 bar)
maximum; 50 psi (0.35 MPa, 3.5 bar) minimum (while
running).
Flow volume required: 70 scfm (1.96 m
3
/min) minimum;
250 scfm (7.0 m
3
/min) maximum. Available fluid pres-
sure and flow rate are directly related to available air vol-
ume. See Pump Performance Charts, page 83.
General flow volume guidelines:
• 70 scfm (1.96 m
3
/min) per gpm (lpm) while
spraying
• 10 scfm (0.28 m
3
/min) added per agitator
• 10 scfm (0.28 m
3
/min) added per drum feed
pump
NOTE:
If your sprayer is for use in hazardous areas, the control
box is powered by an air-driven alternator.
NOTE:
Dosing valves are operated by air. The sprayer will not
operate correctly if the inlet air gauge drops below 50
psi (0.35 MPa, 3.5 bar) while spraying.
If your sprayer is rated for hazardous areas, and you
have explosion-proof heaters, you must have a quali-
fied electrician connect heater wiring. Ensure wiring
and installation comply with local electrical codes for
hazardous areas.
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