DPLLD Transducer Installation
Red Jacket Maxxum Big-Flo
16
Because the DPLLD transducer must be installed downstream from these devices, a monitored containment
sump is required.
There
must
not be a check valve installed between the SwiftCheck valve and the pump
for DPLLD to function properly.
Ensure that the Healy pump is wired according to the manufacturer’s instructions and utilizes isolation relays.
4. Get a watertight cord grip from the transducer installation kit and coat its 1/2” NPT threaded end with UL-
Classified, nontoxic pipe sealant suitable for the fuel involved. Screw the cord grip into one of the openings in
the weatherproof junction box. Feed the end of the DPLLD transducer cable through the cord grip and then
tighten the nut to ensure a watertight seal. Connect and seal the pressure transducer wires to the wires from
the TLS console as described in ‘Epoxy Sealing DPLLD Transducer Field Wiring Connections’ on page 21.
5. If applicable, open ball valve down line from the pump. Upon start-up of the pump, check for leaks to ensure
that the system is leak free.
Red Jacket Maxxum Big-Flo
Disconnect, lock out, and tag all AC power to the TLS console, dispens
-
ers and submersible pumps.
When servicing equipment, use non-sparking tools and use caution when removing or
installing equipment to avoid generating a spark.
1. If a ball valve is installed down line from the pump, close it.
2. If any in-line check valves or Big-Flo Diaphragm Valve are installed in the line, they must be removed.
3. Remove the cap from the 2-inch Transducer port next to the 3-inch discharge port. Thread the DPLLD
transducer into the transducer port (see Figure
13).
Seal the NPT threads only with a UL-Classified, nontoxic pipe sealant suitable for the
fuel involved (for high-alcohol fuel blend applications, Loctite 564 is recommended).
Apply sealant in a manner that prevents it from entering and contaminating hydraulic
cavities.
Figure 13. Example DPLLD Installation In A Red Jacket Maxxum Big-Flo Pump
4. Get a watertight cord grip from the transducer installation kit and coat its 1/2” NPT threaded end with UL-
Classified, nontoxic pipe sealant suitable for the fuel involved. Screw the cord grip into one of the openings in
the weatherproof junction box. Feed the end of the DPLLD transducer cable through the cord grip and then
