1
L
IEBERT
L
IQUI
-
TECT
®
460 K
ITS
Zone Leak Detection Module With Cable
Product Specification Sheet
Description
The Liebert Liqui-tect 460 (LT460) provides zone
detection of leaks, protecting equipment by con-
stantly monitoring the area for leaking liquids. The
LT460 is the ideal solution for perimeter sensing or
serpentine coverage of areas requiring up to 100 feet
of cable.
Selectable modes of
operation provide flexi-
ble alarming options
and protection for the
cable. The LT460 con-
stantly monitors a zone
for leaks, internal
faults and power fail-
ures and warns of any
abnormal conditions.
Top cover LEDs provide
status indication and also ensure the cable is prop-
erly installed and operational under raised floors.
Two independent outputs provide a signal to a local
alarm panel, Liebert environmental unit,
remote
building management system or external equip-
ment, such as motorized water shut-off valves.
The LT460 kit is ideally suited for the following:
Applications
• Glycol, Condenser Water and Chilled Water
Cooling Piping Leak
• Humidification Feed Water Piping
• Condensate Pumps and Drains
• Unit and Ceiling Auxiliary Drip Pans
• Overhead Piping Troughs
Locations
• Large-Scale Network Control Centers
• Data Centers
• MRI, CAT Scan Rooms
• Server Rooms - Closets
• Unattended Remote Shelters
• Sensitive Areas With Overhead Piping
• Mechanical Equipment Rooms
• Industrial Process Control Rooms
Components
Liqui-tect 460 Module
The LT460 consists of a metal enclosure with a
hinged top door providing access to the internal cir-
cuit board for wiring termination and configuration
of DIP switches. The LT460 will monitor up to 100
feet of connected LT500Y leak detection cable.
LT500Y Leak Detection Cable
The cable material and construction allow the cable
to lie flat when used with hold-down clips. The
LT500Y is plenum-rated and UL-listed for safe
operation.
•
If obtained separately,
cables are available in
lengths of 15, 35 and 50 feet. These cables can be
connected incrementally to monitor from 15 feet
up to 100 feet. An end terminator and hold-down
clips (two clips required for each 6-8 ft. of cable)
must be ordered separately.
•
If obtained in a kit,
cables are available in
lengths of 20, 25, 30, 35 and 45 feet. Cables in kits
cannot be lengthened. Hold-down clips are
provided.
Refer to the matrix on page 2 (
Prepackaged
Sizes for Liebert Units
) to select a
preconfigured kit sized to specific lengths for
Liebert environmental units.
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.
Switch Settings
OFF
ON
S1
1. Leak Detect Filter
10sec 2min
2. Alarm Latch
No
Yes
3. Alarm Retest Delay
No
1hr
4. Not Used
—
—
Contacts
Rating:
24V,3A
CONNECT ENCLOSURE TO EARTH GROUND
TB3-3
TB3-2
TB3-1
TB2-3
TB2-2
TB2-1
TB1-2
TB1-1
Contacts
Rating:
24V,3A
24V
50/60Hz
0.12A
2
1
N.C.
C
N.O.
N.C.
C
N.O.
ALL CIRCUITS: CLASS 2
Contacts shown in POWERED, NON-ALARM state
