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LJ CAUTION: IF MORE THAN TWO WIRE NUT CONNECTIONS SHARE AN EPDXY SEALANT • BAG, THE CONNECTIONS WILL NOT BE PROP- ERLY SEALED. IMPROPER SEALING OF THE CONNECTIONS WILL RESULT IN INACCURATE SENSOR READINGS AND POSSIBLY FALSE ALARM CONDITIONS. WWARNING: EPDXY SEALANT MAY BE IRRI- TATING TO EYES AND SKIN. MAY CAUSE SKIN SENSITIZATION IN SUSCEPTIBLE IN- DIVIDUALS. MAY BE ABSORBED THROUGH THE SKIN. EPDXY SEALANT CONTAINS EP- OXY RESIN AND VINYL CYCLOHEXENE DI- OXIDE. VINYL CYCLOHEXENE DIOXIDE HAS CAUSED SKIN CANCER IN ANIMAL TESTS. PRECAUTIONS: AVOID EYE AND SKIN CON- TACT. WEAR IMPERVIOUS GLOVES AND SAFETY GLASSES. USE ONLY IN WELL VEN- TILATED AREAS. D. INSTALLATION OF DISCRIMINATING INTERSTITIAL SENSOR — FIBERGLASS TANKS .1 NOTE: To ensure proper operation of the sensor, it is important that you accurately measure your riser, and correctly install the sensor according to the size ofyour fiberglass tank. This ensures the sensor will rest as close as possible to the bottom of the tank annulus. 1. Measure the length of the riser pipe as show in Figure 48, "Discriminating Interstitial Sensor Installation — Fiberglass Tanks." 2. Locate the label on the sensor cable that corresponds to the tank size. .1 NOTE: Sensor cable tank size markings are based pion Xerxes and Owens Corning Fiberglass Tanks. Call Veeder-Root if you are installing the sensor in another brand of fiberglass tank. 3. Measure from the appropriate label, up the sensor cable (away from the sensor) the riser pipe length determined in step 1. Mark this position with the tie wrap provided. CAUTION: DO NOT USE A KNIFE OR OTHER SHARP OBJECT TO MARKTHE LEADER CABLE. MARK THE DISTANCE WITH THE TIE WRAP PROVIDED. 4. Using a pull cord, draw the sensor through the intersti- tial space until the tie wrap is even with the top of the riser pipe. The sensor should now be at the bottom of the tank. NOTE: Pull -Cord Installation Method. To en- sure proper installation of the sensor using a pull cord, an eyelet has been provided at the end of the sensor for pull -cord installation. 5. Secure the riser cap to the riser pipe. Site Preparation anA&stallation InstructionsT TLS-31WST Monitoring System 2-1 /2" CORD GRIP SEALS WEATHERPROOF SUPPLIED WITH SENSOR (1 PER SENSOR) 1/2" RIGID _ 14" MINIMUM DIA. MANHOLE -1 CONDUIT BLK#2 WEATHERPROOF JUNCTION BOX WITH FROM 0 1/2 NPT THREADS 06 CUBIC INCH + BILK #1 MINIMUM) EPDXY SEAL PER NFPA SPECIFICATIONS TO PROBE MEASURED JUNCTION BOX LENGTH OF RISER 10' TANK DIA. LABEL 4" DIA. RISER 8' TANK DIA. LABEL 6' TANK DIA. LABEL SENSOR CABLE 4' TANK DIA. LABEL SENSOR PART NUMBER PULL -CORD EYELET Figure 48. Discriminating Interstitial Sensor Installation – Fiberglass Tanks. 6. Tighten the cable bushing nuts on the riser cap and junction box to ensure a water -tight seal at the cable entry. 7. Using wire nuts, connect the two -wire sensor cable to the field wires in the sensor junction box. Be sure to observe color codes for proper polarity hookup to the TLS -350 monitor Type A Interface Module. (See Figure 49, "Discriminating Interstitial Sensor Wiring Instal- lation Diagram.") Figure 49. Discriminating Interstitial Sensor Wiring Installation Diagram. 8. Seal wire nuts with epoxy sealant using one bag for two wire nut connections. (Refer to Figure 26, "Epoxy Sealant for Two -Wire Connections.") 31 WEATHERPROOF JUNCTION BOX (1 PER SENSOR) 1/2" RIGID CONDUIT BLK#2 TO""�4FROM FROM MONITOR + BILK #1 Figure 49. Discriminating Interstitial Sensor Wiring Installation Diagram. 8. Seal wire nuts with epoxy sealant using one bag for two wire nut connections. (Refer to Figure 26, "Epoxy Sealant for Two -Wire Connections.") 31