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FISite Preparation and In ation Instructions TLS-350 UST Monitori ystem isCAUTION: IF MORE THAN TWO WIRE NUT CONNECTIONS SHARE AN EPDXY SEALANT BAG, THE CONNECTIONS WILL RESULT IN INACCURATE SENSOR READINGS AND POSSI- BLY FALSE ALARM CONDITIONS. WARNING: EPDXY SEALANT MAY BE IRRI- TATING TO EYES AND SKIN. MAY CAUSE SKIN SENSITIZATION IN SUSCEPTIBLE IN- DIVIDUALS. MAYBE 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. SECTION 8. HYDROSTATIC SENSOR INSTALLATION NOTE The wires between the monitor and each hydrostatic sensor location must be of a type de- signed for use in the presence of gasoline and oil, and must be between AWG 14 and AWG 18. The conduit must be properly sealed in accordance with the National Electrical Code (NFPA 70) and the Auto- motive and Marine Service Station Code (NFPA 30A) since they pass from a Class I, Division II area into a nonhazardous area. A. EQUIPMENT PREPARATION. 10 WARNING: TO AVOID ELECTRICAL SHOCK WHICH COULD KILL YOU, BE SURE AC POWER TO THE MONITOR IS OFF DURING SENSOR CABLE CONNECTION. 1. Turn OFF power to the TLS -350 system before connect- ing the sensor cable. ,I NOTE: Do not install the sensor ifbrine solution has not been installed in the annulus, according to tank manufacturer's specifications. Failure to comply may lead to an alarm or incorrect sensor readings. 2. Make sure the brine solution has had time to settle in the annular space before continuing with sensor instal- lation. Refer to the tank manufacturer's recommenda- tions. 3. Install the vent in the riser pipe cap. (See cap drawing in Figures 51 and 52.) 16 NOTE: If installing sensor in a location with a high water table, install a separate vent line routed to an aboveground location to ensure water won't enter riser pipe through the cap vent. B. SENSOR WIRING. 1. Thread the two -wire sensor cable through the riser pipe cap. 32 0 2. Using wire nuts, connect the sensor cable to the field wires in the sensor junction box. (Refer to Figure 50, "Hydrostatic Sensor Wiring Installation Diagram.") Figure 50. Hydrostatic Sensor Wiring Installation Diagram. 3. Seal wire nuts with epoxy sealant using one bag for two wire nut connections. (Refer to Figure 26, "Epoxy Sealant for Two -Wire Connections.") 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. WARNING: 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. 4. Restore power to the TLS -350 system. C. PRE -INSTALLATION SENSOR TESTING. 1. Testing Dual -Float Sensors. a. Place the sensor in a bucket of water until the water level is between the upper and lower float assem- blies. b. Immerse the upper float completely in the bucket of water. The TLS monitor should indicate an alarm condition. c. Lift the sensor from the water until the lower float assembly is completely out of the water. The TLS should indicate an alarm condition. 2. Testing Single -Float Sensors. a. Immerse the sensor in a bucket of water until the float is covered by water. b. Lift the sensor from the water until the float assem- bly is completely out of the water. The TLS should indicate an alarm condition. WEATHERPROOF JUNCTION BOX (1 PER PROBE) 1/2" RIGID CONDUIT Blk • TO TO SENSOR MONITOR � Wht Figure 50. Hydrostatic Sensor Wiring Installation Diagram. 3. Seal wire nuts with epoxy sealant using one bag for two wire nut connections. (Refer to Figure 26, "Epoxy Sealant for Two -Wire Connections.") 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. WARNING: 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. 4. Restore power to the TLS -350 system. C. PRE -INSTALLATION SENSOR TESTING. 1. Testing Dual -Float Sensors. a. Place the sensor in a bucket of water until the water level is between the upper and lower float assem- blies. b. Immerse the upper float completely in the bucket of water. The TLS monitor should indicate an alarm condition. c. Lift the sensor from the water until the lower float assembly is completely out of the water. The TLS should indicate an alarm condition. 2. Testing Single -Float Sensors. a. Immerse the sensor in a bucket of water until the float is covered by water. b. Lift the sensor from the water until the float assem- bly is completely out of the water. The TLS should indicate an alarm condition.