Siemens ZN-34US Installation Instructions Manual

P/N 315-094221-10Installation InstructionsModels ZN-34US and ZN-34UAGate Valve Supervision ModulesSiemens Industry, Inc.Building Technologies DivisionFlorham Park, NJSiemens Building Technologies, Ltd.Fire Safety & Security Products2 Kenview BoulevardBrampton, OntarioL6T 5E4 CanadaDescriptionThe Sprinkler Valve Supervision Modules, Model ZN-34US and Model ZN-34UA, are designed to providetwo circuits for the supervision of sprinkler systemgate valves and ancillary equipment in accordancewith NFPA Standard 72. The module provides twoyellow LED indicators per circuit. The first illuminateswhen a supervisory condition exists and the secondwhen a circuit trouble condition occurs. The moduleutilizes an end-of-line resistor in parallel with normallyopen switches to provide this supervision.The Model ZN-34US provides annunciation of condi-tions as follows; when a sprinkler valve is closed thesupervisory circuit is shorted, the yellow supervisoryLED is illuminated and the supervisory module outputis energized. The output should be used to operate aseparate AE-30U Module with an audible device.When a break in the circuit occurs the module troubleLED is illuminated and the control panel is placed insystem trouble. The supervisory condition is non-latching, therefore, the supervisory condition willclear if the sprinkler valve is restored to its normal,open position.The Model ZN-34UA is a latching device. Operationis the same as the ZN-34US except that the conditionlatches and can only be cleared through a system re-set after the sprinkler valve is restored to its normal,open position.In addition to gate valves, other sprinkler supervisorylimit functions such as water pressure, water level,temperature, air pressure and fire pump supervisionmay be supervised with the ZN-34US/-UA.All module LEDs are illuminated when the system re-set/lamp test switch on the CP-35 main module is op-erated. The ZN-34US/-UA sprinkler valve supervisionmodule is placement supervised, providing a systemtrouble signal upon removal from the system.Installation1. Mount the module to the horizontal mountingbrackets in the control enclosure.2. Install the Model JA-5 (5 in long) bus connectorcable assembly between receptacle P2 of themodule and receptacle P1 of the module orcontrol panel immediately preceding it in the bus.Note: If the preceding module is on another rowin the enclosure, a JA-24 (24 in long) busconnector cable assembly will be required.3. Modules are to be bus-connected from right toleft. For two-row enclosures, the modules in thelower row are to be connected from left to right.Succeeding rows are to be alternatelyconnected, right to left, left to right, etc.4. If a module is the last module in the system,install either a JS-30 (30 in long) or JS-64 (64 inlong) bus connector assembly from the unusedreceptacle of the last module to terminal 41 ofthe CP-35 control panel. This completes themodule supervision circuit.5. Wire the circuit(s) as described in the CP-35Control Panel Instruction Manual (P/N 315-085063) Installation and Wiring. Refer to the Wiringillustration.Note: If a zone is not used, the EOL deviceshould be connected to the alarm initiating circuitterminals 2 and 3 (Zone 1) or 4 and 5 (Zone 2) ofthe module.6. If a supplementary relay module, annunciator, orother output module is used, then the alarmoutputs, terminals 1 (Zone 1) and 6 (Zone 2),should be connected to these units.Wiring TestRefer to the CP-35 Control Panel Instruction Manual,Installation and Wiring.Electrical Information21.5 VDC at 18mA Supervision and 100mA Supervi-sory Switch ActivatedMaximum loop resistance: 100 ohms

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