VERDER VERDERAIR VA-E25, Операция

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Installation
Grounding Grounding Grounding
The 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.
• Always Always
Always ground the entire fluid system as
described below.
• Pumps with Polypropylene Polypropylene Polypropylene fluid sections are
not not
not conductive. Never
Never
Never use a nonconductive
polypropylene pump with flammable fluids.
• Follow your local fire codes.
Before operating the pump, ground the system as
explained below.
• Pump: Pump:
Pump: Loosen the grounding screw (R). Insert one
end of a 4 mm
2 (12 AWG) 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 819.0157, is available from Verder.
• Motor: Motor:
Motor: AC motors have a ground screw in the
electrical box. Use it to ground the motor to the
controller.
• Air Air
Air Line
Line
Line and
and
and Fluid
Fluid
Fluid hoses:
hoses:
hoses: Use only grounded
hoses with a maximum of 150 m (500 ft) 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
Fluid supply
supply
supply container:
container:
container: Follow local code.
• Solvent Solvent Solvent pails pails pails used used used when when when flushing: flushing: flushing: Follow local
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: VFD: VFD: Ground the variable frequency drive (VFD)
through a proper connection to the electrical
system. 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.
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