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• Typical Sensor and Probe Junction Boxes: Manufacturer: Appleton Electric Co. 1701 W. Wellington Avenue Chicago, IL 60657 Tel: (312) 327-7200 Description Catalog Number Quantity Junction Box JBDX-75 1 Cover, Junction Box JBK-B 1 Gasket, Junction Box JB -GK -V 1 Manufacturer: Crouse -Hinds Co. Syracuse, NY 13221 Tel: (316) 477-7000 Description Catalog Number Quantity Junction Box GRFX-139 1 Cover, Junction Box GRF-10 1 Gasket, Junction Box GASK-643 1 G. MANHOLE INSTALLATION. 11,E NOTE: Ensure that there is a sufficient amount of gravel under each manhole for proper drainage. At each probe and sensor location, install a 14 -inch mini- mum diameter approved manhole according to the manufacturer's instructions. Offset the probe or sensor riser pipes within the manholes for ease of junction box installation and wiring. Leave enough space between the junction box and manhole liner so that the junction box can be removed if necessary. H. INTRINSICALLY SAFE WIRING INSTALLATION. (See Figures 9a and 9b, "Typical TLS -350 System Wiring Diagrams"). To the installer: Read and carefully adhere to the instruc- tions in the following warnings during intrinsically safe -wire (field wire) installation! mill WARNING: IMPROPER SYSTEM OPERATION COULD RESULT IN UNDETECTED POTEN- TIAL ENVIRONMENTAL AND HEALTH HAZ- ARDS IF THE PROBE- OR SENSOR -TO -MONI- TOR WIRE RUNS EXCEED 1000 FEET. RUNS OVER 1000 FEET ARE NOT UL ACCEPTED FOR THIS APPLICATION. PROBE- AND SENSOR -TO -MONITOR WIRES MUST NOT EXCEED 1000 FEET. WARNING: EXPLOSION COULD OCCUR IF OTHER WIRES SHARE CONDUITS OR TROUGHS WITH PROBE OR SENSOR WIR- ING. CONDUITS AND WIRING TROUGHS FROM TLS -350 PROBES AND SENSORS MUST NOT CONTAIN ANY OTHER WIRES. Site Preparation a Installation Instructions TLS -1W UST Monitoring System 11 FAILURE TO COMPLY WITH THESE WARN- INGS COULD RESULT IN DEATH, SERIOUS PERSONAL INJURY, PROPERTY LOSS AND EQUIPMENT DAMAGE. All wires must be of a type designed for use in the presence of gasoline and oil, and must be between AWG 18 and AWG 14. The conduit must be properly sealed in accor- dance with the National Electrical Code (NFPA 70) and the Automotive and Marine Service Station Code (NFPA 30A) since they pass from a Class 1, Division I or Division II area into a nonhazardous area. 16 CAUTION: IT IS CRITICAL THAT YOU IDENTIFY AND MAINTAIN THE RELATIONSHIP OF PROBE AND SENSOR LOCATIONS AND THEIR WIRES TO THEIR POSITIONS ON THE PROBE OR SEN- SOR CONNECTORS. FAILURE TO DO SO COULD RESULT IN THE IMPROPER IDENTIFICATION OF A LEAK LOCATION OR LEAK TYPE. APPEN- DIX A PROVIDES A FORM TO RECORD THE COLOR CODING OR LABELING METHOD USED TO IDENTIFY THE WIRING SCHEME. 1. Two -Wire Probe and Sensor Wiring. Pull two conductors of color -coded, THWN AWG 14-18 stranded copper wire between the TLS -350 monitor and the junction box at each probe and sensor loca- tion. Since the wires for multiple probes and sensors may enter the TLS -350 monitor through a single conduit, be sure to use a different color code for each wire or individually mark each wire! 2. Three -Wire Sensor Wiring. Pull three conductors of color -coded, THWN AWG 14-18 stranded copper wire between the TLS -350 monitor and the junction box at each monitoring well location. Since the wires for multiple sensors may enter the TLS -350 monitor through a single conduit, be sure to use a different color code for each wire or individually mark each wire! I. POWER WIRE INSTALLATION. (See Figures 9a and 9b, "Typical TLS -350 System Wiring Diagrams"). Pull four (4) wires between the power panel and the TLS - 350 monitor; three (3) #14 AWG (or larger) color -coded wires for line, neutral and chassis ground; and, one (1) # 12 AWG wire for barrier ground. 16 CAUTION: DO NOT CONNECT THE POWER SUPPLY WIRES TO A LIVE CIRCUIT. 9