Emerson 3000/ITR Manuel D’Utilisation

The zone leak detection kit provides leak detection for a defined zone. This kit is ideal for perimeter 

sensing or serpentine coverage of small areas. A simple, two-wire connection signals the alarms at a 

Liebert environmental unit or at a monitoring panel. Run wires to the Liebert unit and connect them 

to terminals 24 and 51, 55 or 56. The sensor utilizes Liebert's LT500Y leak detection cable. The kit is 

offered with five different lengths of cable sized specifically for the type of Liebert Environmental unit 

(see matrix below). Refer to matrix below for the recommended location of leak detection cable.

A connection point is provided for customer supplied remote shutdown devices. This terminal strip is 

located at the top of upflow units, and at the base of downflow units. Terminals 37 and 38 on the ter-

minal strip are jumpered when no remote shutdown device is installed.

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

In back

2 (0.6)

No cable behind

1 (0.3)

No cable behind

On sides

2 (0.6)

2 (0.6)

1 (0.3)

1 (0.3)

In front

2 (0.6)

2 (0.6)

6 (1.8)

6 (1.8)

Unit (footprint-in.)

Part Number

Liebert Challenger 3000

and Liebert Challenger ITR

(32.5 x 32.5)

LT460-Z30

LT460-Z20

LT460-Z30

LT460-Z25

Recommended Liebert 
Liqui-tect location

Floor drain