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Pressure Sensor Installation Under Dispenser Installation Steps vapor return line. NOTE: In ISD installations,the pressure port used must be below the vapor flow meter outlet. 4. Install one of the 68CA-4-4 male connectors (item 2 in Table 1) from the kit into the tapped hole. 5. Install Pressure Sensor (item 1 in Table 1) vertically to the dispenser frame or piping using the 2-inch conduit clamp, rubber shim, and necessary bolts, nuts, and washers from the included Universal Sensor Mounting kit. Wrap the rubber shim (item 10 in Table 1) around the sensor before inserting it into the clamp. Also make sure the sensor cable outlet is facing up and the pressure sensing port tube in the base of the sensor is facing down. 6. Attach one end of the 62CA-4 union (item 3 in Table 1) to the pressure sensing port in the base of the Pressure Sensor. 7. Install the remaining 68CA-4-4 male connectors (item 2 in Table 1) from the kit into each of the three ports in the 3-way calibration valve (item 13 in Table 1). 8. Measure,fabricate, and install a 1/4" OD copper tube (item 12 in Table 1) that runs between the 62CA-4 union in the base of the sensor and the center port of the 3-way calibration valve. 9. Measure,fabricate, and install a 1/4" OD copper tube that runs between the 1/4"tube end of the male connector fitting installed beneath the shear valve mechanism and the right port on the 3-way valve, being careful not to create any potential liquid traps (Note 3-way valve orientation in Figure 6). 10. Screw the 59CA-4 plug, item 4, from the kit onto the left port's male connector. Make sure the valve's handle is set to connect the sensor to the vapor return line and not to the capped (ambient) port. Important!All plumbing's pitch to drain should be 1/4" vertical per 12" horizontal to eliminate liquid traps. 11. Route the cable from Pressure Sensor to the Pressure Sensor junction box in the dispenser. Observing polarity, connect the sensor wiring to the field wiring from console and cap with wire nuts (see Figure 7) - OR -terminate the wiring in the TLS RF transmitter (W2). In wireless installations, the wiring is not sealed and does not run back to the TLS console and Steps 12, 13 and 14 ARE NOT REQUIRED. 12. Seal wire nuts in epoxy sealant following the instructions in Figure 8. 13. Push the epoxy sealed bag into the junction box. Replace and tighten the junction box cover. 14. Terminate field wiring into TLS Console and connect to Smart Sensor Module (TLS-3XX- Figure 9). Note: observe polarity! The cable length between the console and sensor must not exceed the distance stated in the TLS-3XX Site Prep manual (P/N 576013-879). Note: Intrinsically safe devices must be installed in accordance with Article 504 of the National Electrical Code, ANSI/NFPA 70, for installation in the United States, or Section 18 of the Canadian Electrical Code for installations in Canada. This intrinsically safe Pressure Sensor P/N 331946-001, has only been evaluated for connection to a UL list- ed TLS-3XX Liquid Level Gauge/ Leak Detector. Conductors of different intrinsically safe circuits run in the same cable/conduit must have at least 0.01 inch (0.25 mm) of insulation. 15. After the Pressure Sensor is installed, pressurize the tank ullage space and vapor piping to at least 2 inches WC and test for leaks using leak detection solution. 16. Replace lower dispenser sheet metal doors onto dispensers. 10-6 CARB Approved IOM 10-Veeder Root Pressure Sensor-Executive Order VR-202