6.1.2 Installation
1. Remove all pressure from the product piping.
2. Remove the current mechanical leak detector.
CAUTION: Be sure to prevent any debris or scaling from entering
system through the leak detector opening.
3. Use the fuel-absorbent cloths to soak up fuel within the
work area and around the dry pipe threads.
4. Use an emery cloth to remove any burrs in the packer of
the VLLD sensor seat.
5. Plug the line test port.
NOTE: Apply fuel-approved thread sealant (not thread tape) to
plug.
6. Install the sensor in the existing submersible pump line
leak detector port. Take care not to damage O-ring seal.
a. Apply proper thread sealant to the sensor threads.
b. Install into test port and tighten by hand.
c. Using the proper wrench, tighten the sensor using the
flats below the cap or the hex on top of the sensor.
Tighten only enough to prevent leakage. Do not over
tighten!
7. Connect the sensor wires to the field wires in the junction
box using the supplied wire nuts. See figure 6.5.
8. Seal the electrical connections with the epoxy seal packs.
9. Clean the area and power the pump.
Figure 6-2 Soak-up Fuel
Figure 6-3 Apply Thread Sealant
Figure 6-4 Tighten Sensor
Figure 6-5 VLLD Wiring Connections