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Wiring to a Liebert Environmental Unit
The LT300 has two wires for connection to a Liebert environmental
unit.
Note: This sensor should be connected only to a Liebert envi-
ronmental unit.
Figure 1 LT300 to Liebert environmental units
You can wire up to six Liqui-tect 300 sensors to a single alarm point
on a Liebert environmental unit. Sensors should be wired in parallel,
as shown in Figure 2.
Figure 2 Multiple LT300s to Liebert environmental units
Note: When multiple sensors are wired in this manner, you must dis-
connect the sensors one at a time when an alarm occurs to determine
which sensor is in alarm. The alarm will stop when the sensor causing
the alarm is disconnected.
Liebert Deluxe System/3, Challenger,
Himod or Mini-Mate2 (8 ton)
LT300
Liebert Mini-Mate2 (1 to 5 ton)LT300
Orange wire
Brown wire
Orange wire
Brown wire
Environmental
unit
Environmental
unit
24 (24V)
51, 55 or 56
TB1-1 (24V)
TB1-2 or TB1-3
Liebert environmental unit
LT300
Orange wire
Brown wire
Orange wire
Brown wire
TB1-1 (24V)
TB1-2 or TB1-3