Page 3 - TABLE OF CONTENTS; LED O
i TABLE OF CONTENTS I NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 E XTERIOR D IMENSIONS AND M OUNTING D ETAILS . . . . . . . . . . . 1 P LACEMENT ON S UBFLOOR U NDER C OOLING S UPPORT E QUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - ii
Page 5 - Introduction; Leak Detection Sensors install quickly and work; Note that; The LT460 sensor can also be purchased independently. The sensor; Exterior Dimensions and Mounting Details
1 Introduction Liebert Liqui-tect ® Leak Detection Sensors install quickly and work simply for reliable detection of conductive aqueous fluid leaks.The Liqui-tect 460 Sensor provides zone protection using the easy-to- install and quick-drying Liebert leak detection cable. LEDs located on the top cov...
Page 6 - (Other applications such as long perimeter walls can be monitored); leak detection zone
2 Placement on Subfloor Under Cooling Support Equipment (Other applications such as long perimeter walls can be monitored) As shown above, the Liqui-tect 460 (LT460) may be placed on a sub- floor, where it is connected to the leak detection cable that surrounds the leak detection zone —the area dire...
Page 7 - Figure 1; Power Wiring; 4V from Liebert Environmental Unit to LT460; Transformer
3 Power Wiring The LT460 is rated for 24 VAC, 50/60 Hz and 0.12 amp. Figure 1 24V from Liebert environmental units to LT460 Figure 2 24V from transformer to LT460 Power Wiring 24V from Liebert Environmental Unit to LT460 Liebert Deluxe Sys/3,Challenger, Himod orMM2 (8 Ton) TB1 T5 (24V) G5 (Ground) L...
Page 8 - Wiring to Auxiliary Alarm Panels; The LT460 has two Form-C dry contact alarm output contacts (TB2 &; Figure 3; OR; Liebert DS
4 Wiring to Auxiliary Alarm Panels The LT460 has two Form-C dry contact alarm output contacts (TB2 & TB3). Each contact is rated for 24 VAC at 3 amp. Figure 3 LT460 to Liebert environmental units Figure 4 LT460 to Liebert contact monitor panel Liebert Deluxe Sys/3,Challenger, Himod orMM2 (8 Ton)...
Page 9 - Configuration Switch Settings; leak detect filter
5 Configuration Switch Settings A four-position DIP switch is used to select two alarm (filter) delays and three mutually exclusive alarm modes. The switches are located next to the wiring termination blocks. Leak Detect Filter Delay (SS1) SS1 selects the leak detect filter delay , the interval for ...
Page 10 - selects the; alarm retest delay; , the setting in which an alarm is
6 Alarm Retest Delay (SS3) SS3 selects the alarm retest delay , the setting in which an alarm is latched and retested every hour. OFF = Non-latching (default)ON = Latching-retest each hour The factory default is OFF = Non-latching. If SS3 = ON and a leak is detected, the alarm condition is latched, ...
Page 11 - LED Operation; System Normal; Notes; Sensor
7 LED Operation System Normal (Green): • ON continuously when power is applied to sensor. Alarm Pending (Yellow): • ON continuously during leak detect filter delay and cable fault delay. • FLASHING (with Leak Detected LED) to indicate cable fault condition. Leak Detected (Red): • FLASHING to indicat...
Page 12 - Installation of Leak Detection System Cable; DETECTION CABLE PLACEMENT PRECAUTIONS
8 Installation of Leak Detection System Cable 1. Attach the leak detection cable to the LT460 module.2. Activate module and test detection cable. (Touch detection cable with a clean moist cloth or paper towel.) Dry detection cable to remove the alarm condition. (A hair dryer can be used to speed up ...
Page 13 - clips every
9 4. The installation of the hold-down clips should be in pairs according to Figure 5 with the following considerations: Figure 5 Installation of hold-down clips in pairs a. One pair every 6 to 8 feet in straight patterns (see Figure 6 ). b. One pair every 3 to 4 feet in circular patterns (see Figur...
Page 14 - Leak Detection Kit Installation Scenarios
10 Leak Detection Kit Installation Scenarios Scenarios Upflow Unit Detection around entire unit Upflow Unit Detection on sides and in front of unit Downflow Unit Detection around entire unit Downflow Unit Detection on sides and in front of unit Distance from unit Distance: In back On sides In front ...
Page 16 - Locations; Infrastructure Management &; Emerson Network Power.
Ensuring The High AvailabilityOf Mission-Critical Data And Applications. While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or f...