Emerson 460 Kits - Manual

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

10 sec 2 min

2. Alarm Latch

No

Yes

3. Alarm Retest Delay

No

1 hr

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