Resumen del contenido incluido en la página 1
MONITORING
LIQUI-TECT MONITORING SYSTEM
USER MANUAL
Resumen del contenido incluido en la página 2
Resumen del contenido incluido en la página 3
TABLE OF CONTENTS 1.0 INTRODUCTION 1.1 Equipment Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Outside Enclosure Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Typical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.4 Controller Board Overview . . . . . . . . .
Resumen del contenido incluido en la página 4
6.4 Setup System - Setup ZN2 Zone 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6.5 Setup System - Setup Alarm Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.5.1 Specify Longest Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.5.2 Define Relays as Normally Open or Normally Closed . . . . . . . . . . . . . . . . . . . . . . . .
Resumen del contenido incluido en la página 5
Introduction 1.0 INTRODUCTION The Liebert Liqui-tect Monitoring System is the ultimate in leak detection and retrofitting capabili- ties for computer rooms and other large areas. The Liqui-tect Monitoring System provides direct-read at the control unit location, as well as the ability to communicate with the Liebert SiteScan Web enterprise monitoring system or a building management system. The Liqui-tect Monitoring System features an easy-to-use liquid crystal display (LCD) panel with readout
Resumen del contenido incluido en la página 6
Introduction 1.2 Outside Enclosure Overview The enclosure for the Liqui-tect panels controller board comes in two sizes: The large enclosure is designed to accommodate the Transformer Module and future compo- nents, in addition to the controller board. The small enclosure is built to hold the controller board only. Both enclosures are 2-3/4" deep. Both enclosures have a built-in liquid crystal display (LCD) and a key lock, as shown in the example below. The metal enclosures accommodate secur
Resumen del contenido incluido en la página 7
Introduction 1.3 Typical Sequence Figure 3 shows a typical sequence of how the Liqui-tect Monitoring System functions after detecting a leak, contamination or cable break in either Zone 1 or Zone 2. Responses depend on configuration settings. This example shows what happens when a leak is detected. Figure 3 Example of typical sequence: Analog input reaches high setpoint RESPONSES TO AN ALARM RETURN-TO-NORMAL SEQUENCE ALARM CONDITION DETECTED RETURN TO NORMAL A leak is sensed along the cable Th
Resumen del contenido incluido en la página 8
Introduction 1.4 Controller Board Overview The Liqui-tect panels controller board, as shown below, has connectors for two digital outputs for leak detection alarms, two digital outputs for cable break alarms, two inputs for leak detection cables and two analog outputs for connecting to a building management system. The board comes complete with light-emitting diodes (LEDs) to display the status of monitored zones, power connections and other features necessary to monitor and protect your op
Resumen del contenido incluido en la página 9
Introduction Table 1 Controller board components Item Description More Information H-Status LEDs Indicates the operational status of the panel. 1.5: LED Indicators 3.0: Connections and Configuration Provides the distance liquid is detected, normal 3.3: Connecting to a Building Maintenance I-4/20mA output status and cable fault. Used to provide status to a System or External Alarm System (Zone 2) building management system or remote monitoring 5.1: View Cable Status system. 6.5: Setup System
Resumen del contenido incluido en la página 10
Introduction 1.5 LED Indicators The Liqui-tect panels controller board has LED indicators that show the status of inputs, outputs and other board components. Power On/Off Alarm output LEDs LED (Zones 1&2) DS2 R1 TB2 DS1 O N O N K1 Pwr On 1 2 34 56 78 1 23 4 5 6 7 8 R15 K2 R16 DS3 A R17 K3 24V Pow DS4 R18 K4 DS5 K1 K2 R16 DS3 K4 R17 DS4 R18 DS5 K5 U24 C26 C27 C28 TB3 R38 U15 U16 Status LEDs C33 C32 U23 C40 U22 U24 C46 R38 U29 ON TX RX RS485 LEDs SiteScan Web RS422 LEDs RS232 LEDs R77 RX TX RX
Resumen del contenido incluido en la página 11
Installation 2.0 INSTALLATION 2.1 Installation Considerations The Liqui-tect panel must be installed indoors and may be mounted on the surface of a wall or flush- mounted, depending on the users application and the type of wall the unit will be mounted on. The units location must meet the following criteria: The panel must be placed close enough to the areas to be monitored to permit proper connection of the leak detection cable. The panel will monitor two zones; each zone can accommodate
Resumen del contenido incluido en la página 12
Installation 2.2 Surface-Mounting the Liqui-tect Panel NOTE Removing the conduit knockouts before mounting the Liqui-tect panel on the wall will ease installation and prevent strain on the mounting hardware and wall. It is imperative to remove the knockouts if the unit is to be flush-mounted. After determining where to place the unit, check to ensure that you have all the hardware required to install the panel on the surface of a wall. Obtain the needed tools and material. Required tools El
Resumen del contenido incluido en la página 13
Installation 2.3 Flush-Mounting the Liqui-tect Panel NOTE Removing the conduit knockouts before mounting the Liqui-tect panel on the wall will ease installation and prevent strain on the mounting hardware and wall. It is imperative to remove the knockouts if the unit is to be flush-mounted. The rectangular access doors on the top and bottom of the Liqui-tect panel must be removed from the outside of the panel and reinstalled on the inside of the panel. Leaving the doors as shipped from the f
Resumen del contenido incluido en la página 14
Installation 2.4 Connect Power to the Liqui-tect Panel The Liqui-tect panel requires 24VAC for proper operation. Liebert recommends using the optional Transformer Module manufactured by Liebert or another UL-approved Class 2 power unit to obtain proper voltage. If the power unit is not a Class 2 circuit, it must be protected with an IEC 5 x 20mm time lag 2A fuse. For information, consult your local dealer, Liebert representative or the Liebert Worldwide Support Group. WARNING ! Check that po
Resumen del contenido incluido en la página 15
Installation 2.4.2 Input and Output Power Connections - Large Enclosure CAUTION ! The 115VAC/230VAC Transformer Module must be connected to a branch circuit with 15A branch circuit protection. This equipment is intended to be installed by a qualified and certified electrician who must review and approve customer supplied wiring and circuit breakers, verify correct input and grounded connections to ensure compliance with the technical standards and national and local electrical codes. The Tra
Resumen del contenido incluido en la página 16
Connections and Configuration 3.0 CONNECTIONS AND CONFIGURATION CAUTION ! Be sure that the power wiring is disconnected from the Liqui-tect panel before installing any wiring to this unit or changing input or output connections. Input and output connections to the Liqui-tect panel may be made in any orderit is not necessary, for example, to make all input connections before making any output connections. Use copper conduc- tors only for all wiring. Table 4 Wiring specifications Connection Sup
Resumen del contenido incluido en la página 17
Connections and Configuration 3.1 Connecting Leak Detection Cable Inputs The leak detection cable inputs are found on the lower right side of the Liqui-tect panels printed wir- ing assembly board. There are two terminal blocks for the inputs; the lower terminal block is for the Zone 1 cable and the terminal block above it is for a second leak detection cable, Zone 2. To determine the proper wire size, see Table 4 - Wiring specifications. NOTE Each terminal block is a removable, two-part assemb
Resumen del contenido incluido en la página 18
A/C Computer Connections and Configuration 3.1.2 Connecting Leak Detection Cable to the Connection Cable The connection cable has a black fitting on one end that will fasten securely to the fitting on one end of the leak detection cablesee Figure 8. Push these ends together, being careful to insert the pro- truding ends of the leak detection cable into the holes in the connection cable connector. Twist the connector ring to securely link the cables. NOTE Make sure the male end of the LT500Y
Resumen del contenido incluido en la página 19
Connections and Configuration 3. Once the cable passes the test, lay it in the pattern desired. Pay special attention to the following cable placement precautions. DETECTION CABLE PLACEMENT PRECAUTIONS Do not use detection cable that is damaged or dirtyfor example, from plaster, spackle or debris. Detection cable should not be dragged through contaminants (dirty or greasy areas). Floor must be clean for the detection cable to function properly and for the hold-down clips to adhere to the
Resumen del contenido incluido en la página 20
Connections and Configuration 3.2 Connecting Alarm Outputs The Zone 1 and Zone 2 alarm outputs, found in the top right corner of the Liqui-tect panel, provide a contact output for a leak and a C NO cable break for each zone. As an example, the outputs may provide NC alarms to an auxiliary alarm panel or building management sys- C tem. To determine the proper wire size, see Table 4 - Wiring spec- NO NC ifications. Alarm outputs A wiring key beside each terminal block indicates whether the con-
