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Liebert Liqui-tect MC68HC16Z1 User Manual

Liqui-tect monitoring system
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  Summary of Contents for Liebert Liqui-tect MC68HC16Z1

  • Page 3: Table Of Contents

    NTRODUCTION Equipment Inspection ............1 Outside Enclosure Overview .
  • Page 4 Setup System - Setup ZN2 Zone 2 ..........29 Setup System - Setup Alarm Outputs .
  • Page 5: Introduction

    NTRODUCTION 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.
  • Page 6: Outside Enclosure Overview

    Outside Enclosure Overview The enclosure for the Liqui-tect panel’s 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"...
  • Page 7: Typical Sequence

    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...
  • Page 8: Controller Board Overview

    Controller Board Overview The Liqui-tect panel’s 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 operation.
  • Page 9 Table 1 Controller board components Item H-Status LEDs Indicates the operational status of the panel. Provides the distance liquid is detected, normal I-4/20mA output status and cable fault. Used to provide status to a (Zone 2) building management system or remote monitoring system.
  • Page 10: Led Indicators

    LED Indicators The Liqui-tect panel’s controller board has LED indicators that show the status of inputs, outputs and other board components. Power On/Off RS485 LEDs Table 2 LED indicators summary Color Power On/Off LED Pwr On Green Zone 1 & 2 Alarm Outputs LEDs K1 –...
  • Page 11: Installation Considerations

    NSTALLATION 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 user’s application and the type of wall the unit will be mounted on. The unit’s location must meet the following criteria: •...
  • Page 12: Surface-Mounting The Liqui-Tect Panel

    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.
  • Page 13: Flush-Mounting The Liqui-Tect Panel

    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.
  • Page 14: Connect Power To The Liqui-Tect Panel

    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.
  • Page 15: Input And Output Power Connections - Large Enclosure

    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.
  • Page 16: Connections And Configuration

    ONNECTIONS AND 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 order—it is not necessary, for example, to make all input connections before making any output connections.
  • Page 17: Connecting Leak Detection Cable Inputs

    Connecting Leak Detection Cable Inputs The leak detection cable inputs are found on the lower right side of the Liqui-tect panel’s 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.
  • Page 18: Connecting Leak Detection Cable To The Connection Cable

    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 cable—see 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.
  • Page 19: Figure 10 Installation Of Hold-Down Clips In Pairs

    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 dirty—for example, from plaster, spackle or debris. •...
  • Page 20: Connecting Alarm Outputs

    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 cable break for each zone. As an example, the outputs may provide alarms to an auxiliary alarm panel or building management sys- tem.
  • Page 21: Rs422 Sitescan Web Connector

    RS422 SiteScan Web Connector The Liqui-tect panel will interface with Liebert’s SiteScan Web enterprise monitoring system. SiteScan can be used to monitor the Liqui-tect panel from a host computer and silence the audible alarm. The terminal block connector, TB8, is on the bottom edge of the board, near the left corner. To connect the SiteScan Web to the Liqui-tect panel: 1.
  • Page 22: Overview Of Menus

    VERVIEW OF ENUS The Liqui-tect panel displays the Opening Screen at startup, as shown in Figure 14. If any alarms are active, the Current Alarm screen appears. (Pressing any key on the LCD keypad will silence the audible alarm.) If no alarms are present, the LCD screen will alternately display the Opening Screen and a screen showing NO ALARMS PRESENT.
  • Page 23: View Status Options

    TATUS PTIONS The View Status menu allows any user to view the status of cables in both zones, an alarm history log and a trend log for both zones. The arrows used to select the menu item. This section presents step-by-step instructions for each of the following options: •...
  • Page 24: View Cable Status

    View Cable Status The Cable Status screens display the overall status of the cable con- nected to each of the two zones monitored by the Liqui-tect panel, as well as the length of the cable being monitored and the amount of cur- rent present in each cable.
  • Page 25: View Alarm History

    View Alarm History The Alarm History Log contains up to 100 records of alarms that have occurred. Records are added to this log as alarms occur. To view the Alarm History Log: • From the Main Menu, use the arrows then press Enter •...
  • Page 26: View Zone Trend

    View Zone Trend The Zone Trend Log contains up to 288 records that are recorded at regular intervals (every 24 hours) to assist users with verifying opera- tional and troubleshooting problems. Records are added the beginning of the log as they occur. To view the Zone Trend Log: •...
  • Page 27: System And Control Options

    YSTEM AND ONTROL The System and Control menu allows you to configure the Liqui-tect panel—setting up inputs and outputs and system features such as date and time. This menu also provides a vehicle for mapping points, clearing latched alarms and deleting records from the Liqui-tect panel’s alarm and trend logs. The arrows are used to scroll through the menu.
  • Page 28: Figure 16 Menu Overview - System And Control Menu

    Figure 16 shows the main options available from the System & Control menu. Figure 16 Menu overview - System and Control menu Setup System Reset Latched Alarm > SETUP SYSTEM SETUP SYSTEM Section RESET LATCHED ALARM > RESET LATCHED ALARM CLEAR ALARM HISTORY CLEAR ALARM HISTORY CLEAR ZONE TREND...
  • Page 29: Setup System - Overview

    Setup System - Overview The Setup System screen displays six options that allow you to configure zones with cable, alarm outputs, the re-alarm delay time, log points to create a map and system details, such as changing the login password or the system date and time: •...
  • Page 30: Identify The Zone As Connected

    6.3.1 Identify the Zone as Connected To make use of the zone ZN1, you must specify it as Connected (Y). By default, ZN1 is Not connected (N). See 3.1 - Connecting Leak Detec- tion Cable Inputs for instructions on connecting the cable to this zone.
  • Page 31: Auto Calibration

    6.3.4 Auto Calibration The auto calibration feature is designed to allow compensation for the resistance tolerances in the two legs of the sensing wires. As soon as cable is connected, the panel begins calculating the cable length. Initiating the auto calibration feature allows the user to mod- ify the distance to account for any discrepancies.
  • Page 32: Set Up Sensitivity For Contamination Detection

    6.3.6 Set Up Sensitivity for Contamination Detection Each zone may be set up with a sensitivity level at which contamina- tion on the cable is detected. Examples are construction debris and dust. • The most sensitive setting is 20 µA—light contamination will trig- ger an alarm.
  • Page 33: Setup System - Setup Zn2 Zone 2

    Setup System - Setup ZN2 Zone 2 NOTE The setup options are identical for both zones, except the name of the zone differs. The Liqui-tect panel has two independent zones—ZN1 and ZN2—that may be configured individually. Each zone can monitor up to 5,000 ft. (1524m) of leak detection cable.
  • Page 34: Setup System - Setup Alarm Outputs

    Setup System - Setup Alarm Outputs The Liqui-tect panel has six alarm outputs—three types for each zone: • Digital alarm output for cable break detection - a change in state indicates a broken cable or con- tamination on the cable •...
  • Page 35: Specify Longest Cable Length

    6.5.1 Specify Longest Cable Length You may specify the length of the longest cable connected to either of the 4-20mA alarm outputs. The default value is 0-1000 ft. (0-304.8m). Valid entries range from 0-500 ft. (0-152.4m) to 0-5000 ft. (0-1524m), as shown in the Maximum Cable Length screen, below right. Select the longer cable length installed on either zone.
  • Page 36: Setup System - Setup Re-Alarm Delay

    Following are some similarities and differences between Latched and Unlatched alarms. Liqui-tect System’s Response to Alarms - Both Latched and Unlatched When a leak or cable break is detected: • An alarm occurs, • A record is created in the Alarm History Log and •...
  • Page 37: Setup System - Setup Mapmode

    Setup System - Setup Mapmode Mapping involves measuring the exact location of various points along the leak detection cable. This greatly simplifies the use of the Liqui-tect Monitoring System to quickly pinpoint the location of a leak. The Liqui-tect Monitoring System determines the location of a leak by computing its distance along the leak detection cable.
  • Page 38: View Last Map

    6.7.1 View Last Map The View Last Map option allows you to review the mapped points from the last mapping of a zone. This feature is the data logger for the mapmode process described in the previous section, 6.7 - Setup Sys- tem - Setup Mapmode.
  • Page 39: Setup System - Setup System Info

    Setup System - Setup System Info The Setup System Info options allow users to: • Change Password—used for access to system setup functions • Change Date & Time/Automatic Daylight Saving Time—used to set the Liqui-tect panel’s date and time and to enable automatic time change for Daylight Saving Time •...
  • Page 40: Change Date & Time/Automatic Daylight Saving Time

    6.8.2 Change Date & Time/Automatic Daylight Saving Time The Liqui-tect panel has a built-in, real-time clock that is backed up by an encapsulated lithium bat- tery and set up to adjust automatically for daylight saving time twice a year. The Setup System Info menu allows you to change the date or time or automatic adjustment at any time.
  • Page 41: Reset Latched Alarms

    Reset Latched Alarms The Reset Latched Alarms menu allows you to clear any leak or fault alarms that have been defined as latched. To clear latched alarms: Log In and Choose Reset Latched Alarm • From the Main Menu, use the arrows Control, then press Enter •...
  • Page 42: Clear Alarm History

    6.10 Clear Alarm History The Clear Alarm History menu allows you to delete all records from the Alarm History Log, which contains up to 100 records of alarms that have occurred. To delete all records from the Alarm History Log: Log In and Choose Clear Alarm History •...
  • Page 43: Clear Zone Trend

    6.11 Clear Zone Trend The Clear Zone Trend menu allows you to delete all records from the Zone Trend Log, which contains up to 288 records. These records are created every 24 hours to assist in troubleshooting. To delete all records from the Zone Trend Log: Log In and Choose Clear Zone Trend •...
  • Page 44: Liqui-Tect Panel Specifications

    PECIFICATIONS Liqui-tect Panel Specifications Small Enclosure Power Requirements Dimensions 14-1/4 x 2-3/4 x 12 W x D x H, in. (mm) (361.95 x 69.85 x 304.8) Weight (Assembled) Enclosure Type Liquid Crystal Display (LCD) Mounting Surface Ambient Operating Environment Processor Specifics Model Clock speed Total RAM...
  • Page 45 Specifications NOTES...
  • Page 46 Specifications...
  • Page 48 IQUI TECT ONITORING The Company Behind the Products With over a million installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics: •...

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