9
6. Measure and select the proper size “UL” listed electrical
nipples (not included). Feed the wiring from the potted
conduit and the vacuum pump through the necessary
electrical conduit components and nipples making sure
that each piece is connected by a minimum of five
threads. All electrical conduit connections must have at
least five threads of engagement to be in compliance
with the installation procedure.
7. Final tighten the mount for the VP1000-220-IC vacuum
pump and also the hex locking nuts for the potted
conduit assembly only after all the electrical conduit
components have been correctly installed according to
NFPA codes.
Wiring Installation
1. Pull the excess wire from the potted conduit and
the vacuum pump through to the explosion proof
junction box as required.
2. After the electrical conduit connections are
completed and the wiring has been pulled into
and through the explosion proof junction box the
excess wire can be measured and cut. The length
of the wires should allow for stripping and a wire
nut connection for each wire (approximately 6”
or 15.24 cm). Refer to Figure 11 (Junction Box
Connections) for connections from bottom portion
of the potted conduit and VP1000-220-IC wires at
the explosion proof junction box.
3. In the non-hazardous portions of the dispenser,
locate the solenoid valve board that controls the
signals (AC or DC) entering or exiting the product
solenoid valves.
4. Locate the dispenser wire harness that carries
the signals from the solenoid valve control to the
individual solenoid valves on each side of the
dispenser (Figure 11: Connections to Electronics).
A Side
5. Starting on the “A” side of the dispenser and using
a multi-meter, determine which harness wire is
carrying the voltage signal to the “A” side – grade
1 solenoid valve.
6. If a solenoid valve assembly has more than one
signal wire, the signal wire that is first energized
and remains energized throughout the fueling
is labeled.
7. Select one of the red 22 AWG wires from the
potted conduit and the signal wire. Splice these
wires together.
B Side
8. Repeat previous steps 3-5 for the “B” side solenoid
valve signal wire using the second red potted
conduit 22 AWG wire.
9. Locate the common neutral from both of the
solenoid signals and the purple 22 AWG from the
potted conduit. Splice these wires together.
Summary of Contents for HEALY VP1000-220-IC
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