Liebert LIQUI-TECT LT300 - Power Wiring; 24 V Power Source; Connection Diagrams; Wiring to Auxiliary Alarm Panels

Product Specification Sheet page 2 11/02 (Rev. 0)
Power Wiring
The LT410 is rated for 24 VAC, 50/60 Hz and
0.10 amp.
Figure 1 24V from Liebert environmental units to LT410
Figure 2 24V from transformer to LT410
Wiring to Auxiliary Alarm Panels
The LT410 has two Form-C dry contact alarm out-
put contacts: orange wires (1) and yellow wires (2).
Each contact is rated for 24 VAC at 3 amp.
Figure 3 LT410 to Liebert environmental units
Figure 4 LT410 to Liebert contact monitor panel
Power Wiring
24V from Liebert Environmental Unit to LT460
Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)
TB1
T5
(24V)
G5 (Ground)
LT460
TB1
TB1-1
TB1-2
Transformer
LT460
24V from Transformer to LT460
Liebert MM2 (1 to 5 Ton) LT460
TB1
TB1-1
TB1-2
4
V transformer of
h
ere are no
a
ted terminal
t
ions)
(24V)
(Ground)
From 24V
transformer*
Red
Red
Red wires
Liebert Mini-Mate2
(1 to 5 ton)
LT410
* Requires a 24V external transformer (there are
no designated terminal connections on the unit)
Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)
TB1
T5
(24V)
G5 (Ground)
LT460
TB1
TB1-1
TB1-2
Transformer
LT460
TB1
TB1-1
TB1-2
From 24V
transformer
24V from Transformer to LT460
Liebert MM2 (1 to 5 Ton) LT460
TB1
TB1-1
TB1-2
4
V transformer of
h
ere are no
a
ted terminal
t
ions)
(24V)
(Ground)
T5 (24V)
Red
Red
G5 (Ground)
Red wiresTB1
Liebert Deluxe System/3,
Challenger, Himod or
Mini-Mate2 (8 ton) LT410
Location of
T5 (24V)
connection
on main
controller
board of
Liebert unit
Transformer
LT460
TB1
TB1-1
TB1-2
From 24V
transformer
24V
from
Transformer
to
LT460
From 24V
transformer
Red
Red
Red wires
Transformer LT410
LT460 to Liebert Environmental Unit
Liebert Deluxe Sys/3,
Challenger, Himod or
MM2 (8 Ton)
24 (24V)
51
LT460
TB2
TB2-2
(C)
TB2-1 (N.O.)
TB2-3 (N.C.) Env. Unit
Liebert MM2 (1 to 5 Ton)
TB1-1 (24V)
TB1-2
LT460
TB2
TB2-2
(C)
TB2-1 (N.O.)
TB2-3 (N.C.) Env. Unit
OR
1-NC
Orange wires
Liebert Deluxe System/3,
Challenger, Himod or
Mini-Mate2 (8 ton)
LT410
Orange wires
Liebert Mini-Mate2
(1 to 5 ton)
LT410
1-COM
1-NO
1-NC
1-COM
1-NO
Environmental
unit
Environmental
unit
24 (24V)
51, 55 or 56
TB1-1 (24V)
TB1-2 or TB1-3
TB2
TB2-2
(C)
TB2-1 (N.O.)
TB2-3 (N.C.)
LT460
Liebert Contact
Monitor Panel
Input
Contact
(N.O.)
Alarm Panel
2-NC
2-COM
2-NO
Yellow wires
LT410
Alarm panel
Liebert contact monitor
panel
Input
contact
(N.O.)