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LIEBERT® LIQUI-TECT™ 410
POINT LEAK DETECTION SENSOR
Product Specification/Installation Guide
The Liebert® Liqui-Tect™ 410 (LT410)
provides single-point detection of
leaks. The point-detection sensor
has two gold-plated sensing probes
to prevent corrosion and to provide
accurate readings. The LT410
constantly monitors for leaks, internal
faults, and power failures and warns
of any abnormal conditions. Mounting
brackets allow for sensor height
adjustment and leveling.
The LT410 is the ideal solution for
sensing leaks under a raised computer
floor or air conditioning drip pans.
Two independent outputs provide
added flexibility with the capacity to
signal both a local alarm panel, Liebert
cooling unit and a remote building
management system or external
equipment, such as motorized water
shutoff valves.
LT410 APPLICATIONS
The LT410 is ideally suited for:
• Glycol and chilled water cooling,
• Humidification supply water piping,
• Condensate pumps and drains,
• Unit and ceiling auxillary drip pans,
• Overhead piping troughs.
LOCATIONSPLACEMENT
The LT410 is an excellent choice for:
• Large scale network control centers,
• Data centers,
• Server rooms and closets,
• Unattended, remote shelters,
• Mechanical equipment rooms,
• Sensitive areas with overhead piping,
• Industrial process control rooms.
COMPONENTS OF THE
LIQUITECT™ 410 MODULE
The LT410 consists of a metal
enclosure with a hinged top door that
provides access to the internal wiring
termination. It includes side access
through a box connector for installation
of the power and contact wiring. The
mounting brackets attach to the
enclosure with adjustable slots to allow
custom setting of the height of the
sensing probes.
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LIEBERT® LIQUI-TECT™ 410 POINT LEAK DETECTION SENSOR
Product Specification/Installation Guide
DIMENSIONS
TOP, FRONT AND SIDE
TOP VIEW
5.85”
(148.5mm)
4.46”
(113.2mm)
Form-C relay outputs
and power wiring
Adjustable probe
(0.0 - 12.7mm)
height
0.0 - 0.5”
FRONT VIEW SIDE VIEW
6.35”
(161.2mm)
2.25”
(57.2mm)
SPECIFICATIONS
Power Requirements 24 VAC 100 mA, 50/60 Hz, 3 VA (max.)
Dimensions, W x D x H 6.35 in. x 2.25 in. x 4.46in. (161.2 mm x 57.2 mm x 113.2 mm)
Weight (assembled) 2.0 lb. (0.9 kg)
Metal Enclosure NEMA 1, IP 30
ENVIRONMENTAL CONDITIONS
Operating Temperature 50°F to 104°F (10°C to 40°C)
Operating Humidity 10% to 95% relative humidity (non-condensing)
Operating Altitude 0 to 10,000 ft. (0 to 3,048 m)
Output Relay Contact Rating 2 Form-C; 3 A rating at 24 VAC
AGENCY LISTINGS
UL UL916
C-UL C22.2, No. 205-M1983
CE Yes
FCC Compliance 47 CFR, Part 15
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LIEBERT® LIQUI-TECT™ 410 POINT LEAK DETECTION SENSOR
Product Specification/Installation Guide
PLACEMENT ON SUBFLOOR
UNDER COOLING SUPPORT
EQUIPMENT
To a Liebert cooling unit and
an optional monitoring panel
To external power
supply or directly
from unit (see Power
Wiring on page 4)
WIRING INTERCONNECTIONS
Circuits are shown in powered, non-alarm
state.
NOTE
: All power and alarm connections must
be Class 2 circuits.
POWER
POWER
Gold-plated
Probes
1NO
1NC
Leak detection zone
(directly beneath
unit)
1COM
2NO
2NC
Height adjustable
0-0.5” (0-12.7mm)
2COM
Red Wires Orange Wires Yellow Wires
24 V, AC/DC
@ 0.10A, 50-60 Hz, DC
Class 2 Circuit Only
Alarm Contact Rating
24 VAC @ 3A
Class 2 Circuit Only
Alarm Contact Rating
24 VAC @ 3A
Class 2 Circuit Only
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LIEBERT® LIQUI-TECT™ 410 POINT LEAK DETECTION SENSOR
Product Specification/Installation Guide
POWER WIRING
The LT410 is rated for 24VAC, 50/60Hz, and 0.10A.
Liebert® DS, DSE, CW, PDX, PCW,
Mini-Mate with iCOM LT410
Or Mini-Mate2 (8 ton)
TB1 TB1
T5 (24V) Red
G5 (Ground) Red
TB1
Liebert® Mini-Mate2 LT410
(1 to 5 ton)
TB1
Red
From 24V Transformer
Red
* Requires external transformer (there are no designated terminal
connections on the unit)
Liebert® CRV LT410
Medium Control Board TB1
5 Red
Location of T5 (24V)
connection on main
controller board of
Liebert unit.
WIRING TO AUXILIARY ALARM PANELS
The LT410 has two Form-C dry contact alarm output
contacts: one orange wire and two yellow wires. Each
contact is rated for 24 VAC at 3 amp.
Liebert® DS, DSE, CW, PDX,
LT410 PCW or Mini-Mate2 (8 ton)
Orange Wires Cooling
1-NC
1-COM 24 (24V)
1-NO 50, 51, 55 or 56
Note: Terminal 50 not available on Mini-Mate2 (8 ton)
Liebert® Mini-Mate
LT410 Variable Capacity with iCOM
Orange Wires Cooling
1-NC
1-COM 24 (24V)
1-NO 51
Liebert® Mini-Mate2,
LT410 (1 to 5 ton)
Orange Wires Cooling
1-NC
1-COM TB1-1 (24V)
1-NO TB1-2 or TB1-3
Unit
Unit
Unit
4 Red
LT410 Liebert® CRV
Transformer LT410
TB1
Red
From 24V Transformer
Red
Orange Wires Cooling
1-NC
1-COM 60
1-NO 61
NOTE: In Liebert® iCOM™, use the Service Options menu to add that the
Liqui-Tect™ is installed.
Unit
LT410 Liebert® contact monitor panel
Yellow Wires Alarm
2-NC
2-COM
2-NO
Panel
Input
Contact
(N.O.)
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without notice.
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