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• D. POWER WIRING CONNECTIONS. -011 WARNING: IN INSTALLATION OF THIS PRODUCT, COMPLY WITH THE NATIONAL ELECTRICAL CODE; FEDERAL, STATE, AND LOCAL CODES; AND ANY OTHER APPLI- CABLE SAFETY CODES. IN ADDITION, TAKE NECESSARY PRECAUTIONS DURING IN- STALLATION, SERVICE AND REPAIR TO PREVENT PERSONAL INJURY, PROPERTY LOSS AND EQUIPMENT DAMAGE. -011 WARNING: BE SURE POWER TO THE TLS -350 CIRCUIT IS TURNED OFF BEFORE CON- NECTING POWER WIRING. FAILURE TO DO SO COULD RESULT IN DEATH, SERIOUS PERSONAL INJURY, PROPERTY LOSS AND EQUIPMENT DAMAGE. Power Supply Rating: Input Power: (LI, N, G); 120 VAC, 50/60 Hz, 100W Max. Output Power: Alarm Relay Contacts, resistive load - 120 VAC, 2A Max.; or, 24 VDC, 2A Max. 1. Connect a # 12 AWG (or larger) barrier ground conduc- tor from the ground lug closest to the conduit entry in the monitor to the earth ground bus on the power panel being used to supply AC line voltage to the TLS -350 monitor (see Figure 11, "Power Wiring Diagram"). NOTE: If connecting to a subpanel, be sure there is an earth ground connection between the subpanel and the main power panel in accordance with the National Electrical Code. 2. Connect the power wires (LI and N) to the proper terminals in the AC connector (see Figure 11). 3. Connect the chassis ground wire from the ground lug closest to the conduit entry in the monitor to the earth ground bus on the power panel being used to supply AC line voltage to the TLS -350 monitor (see Figure 11, "Power Wiring Diagram"). GROUND LUG 1A FUSE 3AG SLO-BLO o ® M o MODULE 0 0 CONNECTOR GROUNDLUG CLOSEST TO CONDUIT ENTRY MONITOR RIGID a CONDUIT—/ _ a m v N L, Figure 11. Power Wiring Diagram. Site Preparation almunstallation Instructions TLS-SWST Monitoring System F4 4. Connect the power supply wires in the power panel to a separate dedicated circuit. 5. Check to be sure that the electrical resistance between the monitor ground terminal and a known good earth ground is less than 152. E. PROBE AND SENSOR WIRING CONNECTIONS. 10 WARNING: IN INSTALLATION OF THIS PRODUCT, COMPLY WITH THE NATIONAL ELECRICAL CODE; FEDERAL, STATE, AND LOCAL CODES; AND ANY OTHER APPLI- CABLE SAFETY CODES. IN ADDITION, TAKE NECESSARY PRECAUTIONS DURING IN- STALLATION, SERVICE AND REPAIR TO PREVENT PERSONAL INJURY, PROPERTY LOSS AND EQUIPMENT DAMAGE. WARNING: BE SURE AC POWER TO THE SYS- TEM IS OFF BEFORE OPENING THE FRONT -PANEL COVER AND CONNECTING PROBE AND SENSOR WIRES. IF HIGH VOLT- AGE IS SHORTED ACROSS ANY BARRIER TERMINAL, EXPLOSION AND FIRE COULD RESULT. Connectors are supplied with each sensor and probe module. They provide screw terminations for each sensor and probe. CAUTION: ONCE PROBES AND SENSORS HAVE BEEN CONNECTED AND THE SYSTEM HAS BEEN STARTED AND PROGRAMMED, MODULE POSITIONS, CONNECTOR POSITIONS AND WIRE POSITIONS CANNOT BE CHANGED WITHOUT REPROGRAMMING THE SYSTEM! IMPROPER SYSTEM OPERATION WILL RESULT IF ANY ONE OF THESE POSITIONS IS CHANGED WITHOUT REPROGRAMMING. Be sure to accurately record on the circuit directory the type of module, and the location of each device wired to the connector. Identify each connector with a self-adhesive number la- bel according to the slot number. 1. Two -Wire Probes and Sensors. Connect the two color -coded or marked wires from each probe or sensor to the appropriate terminals in the probe or sensor module connectors (see Figure 12, "Four Probe/Thermistor Interface Module Wiring Dia- gram" and Figure 13, "Interstitial Liquid Sensor Inter- face Module Diagram.") Be sure to maintain proper polarity between the probe wires and their respective module connector terminations. Since interstitial liquid sensors are con- tact switches, polarity is not a consideration when con- necting field wires to interface modules. 2. Three -Wire Vapor Sensors. Connect the three color -coded or marked wires from each vapor sensor to the appropriate terminals in the vapor sensor module connectors (see Figure 14, "Vapor Sensor Interface Module Wiring Diagram"). Be sure to maintain proper polarity between the vapor sensor wires and their respective module con- nector terminations. 17