The Liebert Liqui-tect Monitoring System is the ultimate in leak detection and retrofitting capabilities for computer rooms and other large areas. The Liqui-tect Monitoring System provides direct-read
at the control unit location, as well as the ability to communicate with the Liebert SiteScan Web
enterprise monitoring system or a building management system.
The Liqui-tect Monitoring System features an easy-to-use liquid crystal display (LCD) panel with
readout of normal and alarm conditions, as well as leak location. Display and measurement modules
are contained in a single compact package.
The Liqui-tect Monitoring System can monitor up to 10,000 ft. (3048m) of Liebert LT500Y leak detection cable. Points along the cable may be mapped by one person, making it easy to configure within
the critical space and pinpoint the location of leaks when they occur. The system determines the location of the water on the detection cable and reports the distance from the Liqui-tect panel in feet or
meters. To ensure proper protection, the system continuously monitors operation, signaling system
normal, leak detected and cable fault.
The Liqui-tect panel offers these and other features to protect your installation from leak damage:
• audible and visual alarms
• adjustable sensitivity setpoints for leaks and contamination
• continuous scrolling of data
• history logs
• connection to a building management system
• automatic detection of broken cables and contaminated cables
• password protection
• retention of configuration after a power failure
Introduction
Two interfaces permit easy access and configuration of the Liqui-tect panel:
• LCD on the front of the enclosure
• Liebert’s SiteScan Web enterprise monitoring system through a dedicated connection port
1.1Equipment Inspection
Upon arrival of the unit, inspect all items for visible and concealed damage. Damage should be immediately reported to the carrier and a damage claim filed with a copy sent to Liebert or to your sales
representative.
1
1.2Outside Enclosure Overview
Liqui-tect
Monitoring System
The enclosure for the Liqui-tect panel’s controller board comes in two sizes:
•The large enclosure is designed to accommodate the Transformer Module and future compo-
nents, in addition to the controller board.
•The small enclosure is built to hold the controller board only.
Both enclosures are 2-3/4" deep.
Both enclosures have a built-in liquid crystal display (LCD) and a key lock, as shown in the example
below. The metal enclosures accommodate secure conduit fittings and protect components against
external forces and debris.
Figure 1Small enclosure—external features
The enclosure
has knockouts
and access slots
on top and
bottom for
cables and wires.
ESC
LIQUI-TECT PANEL
05-SEP-02 14:04:13
V5.100.0
PRESS =STATUS/SETUP
Introduction
LCD for configuration
and operation
Key lock
R
Liqui-tect
Monitoring System
The enclosure must be secured to a wall, either flush-mounted or recessed in the wall, as described in
2.0 - Installation. Knockouts and access slots on the top and bottom allow easy connection of wires
and cables (see 3.0 - Connections and Configuration) with either mounting type.
Figure 2Large enclosure—internal features
Transformer
Back of LCD
Module
R1
Controller Board
DS1
O N
O N
SW2
SW1
R4
Pwr On
345678
2345678
1
1
2
K1
R15
K2
R16
DS3
R17
K4
DS4
R18
K5
U24
C27
C26
R38
U15
U16
R40
DS6
FaultLEDO
C33
Reset
C32
U23
C40
DS7
DS8
U24
U22
R44
C46
U29
ON
TXRX
On/Off switch
for Transformer
Module
Ground wire
for LCD
Power
receptacle
Knockouts and
access slots
(top and bottom)
2
1.3Typical Sequence
ESC
ESC
Figure 3 shows a typical sequence of how the Liqui-tect Monitoring System functions after detecting
a leak, contamination or cable break in either Zone 1 or Zone 2. Responses depend on configuration
settings. This example shows what happens when a leak is detected.
Figure 3Example of typical sequence: Analog input reaches high setpoint
RESPONSES TO AN ALARMRETURN-TO-NORMAL SEQUENCE
Introduction
LIQUI-TECT PANEL
05-SEP-02 14:04:13
V5.100.0
PRESS =STATUS/SETUP
ESC
ZONE 1
LEAK @ 3495ft
29-AUG-0309:29:10
ALARM CONDITION DETECTED
A leak is sensed along the cable
defining Zone 1.
The horn sounds (audible horn on
the controller board—silence horn by
pressing any key on the LCD keypad)
The LCD flashes
Entry in Alarm History Log
LIQUI-TECT PANEL
05-SEP-02 14:04:13
V5.100.0
PRESS =STATUS/SETUP
ESC
ZONE 1
ALARM RESET - LCD
29-AUG-0309:42:11
ZONE 1
NO LEAK
29-AUG-0309:42:11
RETURN TO NORMAL
The leak is controlled.
The alarm is cleared
(automatically if Unlatched; must be
cleared manually if Latched)
The horn stops sounding
(if user hasn’t silenced it)
The LCD stops flashing
Entry in Alarm History Log
(if alarms defined as Latched)
Entry in Zone Trend Log
(if alarms defined as Unlatched)
3
1.4Controller Board Overview
The Liqui-tect panel’s controller board, as shown below, has connectors for two digital outputs for leak
detection alarms, two digital outputs for cable break alarms, two inputs for leak detection cables and
two analog outputs for connecting to a building management system. The board comes complete with
light-emitting diodes (LEDs) to display the status of monitored zones, power connections and other
features necessary to monitor and protect your operation.
A-Power On/Off
Z-Transformer
Module
Y- 24VAC power
connector
X-Reset
switch
W- LCD contrast
adjustment
V-LCD
connector
U-24VAC
connector
T-Power On/
Off switch
S-Power
receptacle
R-RS485
connector
(not used)
LED
ON
Q-RS485
LEDs
A
LCD Interlface
P-SiteScan
Web LEDs
B-DIP
switch 1
TX RX
C-DIP
switch 2
R1
DS1
Pwr On
O N
O N
SW2
SW1
R4
2345678
1
1
2
345678
C26
R38
U15
R40
DS6
FaultLEDO
C33
Reset
C32
U23
DS7
DS8
U22
R44
C46
U29
N-RS232
connector
O-SiteScan
Web connector
U24
C27
U16
C40
U24
D-Audible
horn
K1
K2
R16
DS3
R17
K4
DS4
R18
DS5
K5
TB3
C28
M-RS232
LEDs
Introduction
E-Digital alarm
outputs (Zone 1)
F-Alarm output
LEDs (Zones 1& 2)
G-Digital alarm
outputs (Zone 2)
H-Status LEDs
I-4/20mA output
(Zone 2)
J-4/20mA output
(Zone 1)
K-Input cable
connector (Zone 2)
L-Input cable
connector (Zone 1)
Table 1Controller board components
ItemDescriptionMore Information
A-Power On/Off LEDIndicates when power is supplied to the panel.
B-DIP switch 1
DIP switch used for resetting password to default
and disabling the audible alarm.
C-DIP switch 2Not used.N/A
D-Audible hornProvides audible notification when an alarm occurs.3.5: Disable the Audible Horn
The Cable Break output connection is a two-state
point (ON/OFF, energized/de-energized). When the
cable is broken or becomes contaminated, an alarm
E-Digital alarm
outputs (Zone 1)
and
G-Digital alarm
outputs (Zone 2)
is created and the contact is energized.
The Leak Detected output connection is a two-state
point (ON/OFF, energized/de-energized). When
water is detected, an alarm is created and the
contact is energized.
Each output can be used to connect to a secondary
warning device such as a horn, light or building
management system.
F-Alarm output
LEDs (Zones 1&2)
G-Digital alarm
outputs (Zone 2)
Indicates the status of the alarm outputs.1.5:LED Indicators
(See description and references for E - Digital alarm outputs (Zone 1) above)
2.4:Connect Power to the Liqui-tect Panel
1.5:LED Indicators
3.5:Disable the Audible Horn
6.8.1: Change Password
3.0:Connections and Configuration
3.2:Connecting Alarm Outputs
5.1:View Cable Status
6.5:Setup System - Setup Alarm Outputs
4
Table 1Controller board components
ItemDescriptionMore Information
H-Status LEDsIndicates the operational status of the panel.1.5:LED Indicators
I-4/20mA output
(Zone 2)
J-4/20mA output
(Zone 1)
K-Input cable
connector (Zone 2)
L-Input cable
connector (Zone 1)
M-RS232 LEDs
N-RS232 connector
O-SiteScan Web
connector
P-SiteScan Web
LEDs
Q-RS485 LEDsNot presently used.N/A
R-RS485 connectorNot presently used.N/A
S-Power receptacle
(Transformer Module)
T-Power On/Off
switch (Transformer
Module)
U-24VAC connector
(Transformer Module)
V-LCD connectorConnection for the LCD located on the front door.N/A
W-LCD contrast
adjustment
X-Reset switch
Y-24VAC power
connector
Z-Transformer
Module
Provides the distance liquid is detected, normal
status and cable fault. Used to provide status to a
building management system or remote monitoring
system.
Provides the distance liquid is detected, normal
status and cable fault. Used to provide status to a
building management system or remote monitoring
system.
Connection to Liebert leak detection cable.
Connection to Liebert leak detection cable.
Indicates the connection status between the
Liqui-tect panel and an RS232 device.
Connection for a laptop. Used by factory personnel.
Requires a null modem cable for connectivity
(P/N 201258P1).
Connection to monitor Liqui-tect panel from Liebert’s
SiteScan Web enterprise monitoring system.
Indicates the connection status between the
Liqui-tect panel and SiteScan Web.
115VAC power receptacle to power laptop during
configuration and diagnostics. Receptacle not
available on 230VAC Transformer Module.
Power switch to turn power On/Off to both
Transformer Module 24VAC connectors and power
receptacle.
One of the two 24VAC connectors for power (the
second is also on the right side of the Transformer
Module near the top). Each connector is rated for
40VA.
Adjustment contrast for the LCD located on the front
door.
Reset switch to reset the panel. Same as repowering the panel.
Power connection for the controller. Requires
24VAC.
Transformer Module used to convert 115VAC or
230VAC to 24VAC. Available only in the large
enclosure.
3.0:Connections and Configuration
3.3:Connecting to a Building Maintenance
System or External Alarm System
5.1:View Cable Status
6.5:Setup System - Setup Alarm Outputs
3.0:Connections and Configuration
3.3:Connecting to a Building Maintenance
System or External Alarm System
5.1:View Cable Status
6.5:Setup System - Setup Alarm Outputs
3.0:Connections and Configuration
3.1:Connecting Leak Detection Cable
Inputs
5.1:View Cable Status
6.4:Setup System - Setup ZN2 Zone 2
3.0:Connections and Configuration
3.1:Connecting Leak Detection Cable
Inputs
5.1:View Cable Status
6.3:Setup System - Setup ZN1 Zone 1
1.5:LED Indicators
N/A
3.0:Connections and Configuration
3.4:RS422 SiteScan Web Connector
1.5:LED Indicators
2.4.2: Input and Output Power Connections Large Enclosure
3.0:Connections and Configuration
2.4.2: Input and Output Power Connections Large Enclosure
3.0:Connections and Configuration
2.4.2: Input and Output Power Connections Large Enclosure
3.0:Connections and Configuration
N/A
N/A
2.4:Connect Power to the Liqui-tect Panel
2.4.2: Input and Output Power Connections Large Enclosure
Introduction
5
1.5LED Indicators
The Liqui-tect panel’s controller board has LED indicators that show the status of inputs, outputs and
other board components.
Power On/Off
LED
Introduction
Alarm output LEDs
(Zones 1&2)
R1
DS1
Pwr On
A
O N
O N
SW2
SW1
R4
2345678
1
1
2
345678
DS2
K1
K2
K3
K4
K1
K2
R16
DS3
R17
K4
DS4
R18
DS5
K5
LCD Interlface
C32
U22
C46
U29
U24
C27
C26
R38
U15
U16
R40
DS6
FaultLEDO
C33
Reset
U23
C40
DS7
DS8
U24
R44
TB3
C28
Status LEDs
FaultLEDO
ON
TX RX
R44
RS232 LEDsSiteScan Web RS422 LEDsRS485 LEDs
DS13
RX TX
R81
R82
DS14
R77
DS9
R79
R78
DS11
DS10
TX RXRXTX
DS12
R80
Table 2LED indicators summary
LEDColorDescription
Power On/Off LED
Pwr OnGreenIndicates whether power is connected
Zone 1 & 2 Alarm Outputs LEDs
K1 – Zone 1 Leak DetectedGreenIndicates leak detected for Zone 1
K2 – Zone 1 Cable BreakGreenIndicates cable problem for Zone 1
K3 – Zone 2 Leak DetectedGreenIndicates leak detected for Zone 2
K4 – Zone 2 Cable BreakGreenIndicates cable problem for Zone 2
Status LEDs
LEDOGreenIndicates the panel is working properly – will flash slowly when working
FaultRedIndicates an alarm is present
ResetRedIndicates the panel is being reset
RS232 LEDs
RS232 TXGreenLiqui-tect panel is transmitting information via the RS232 port
RS232 RXGreenLiqui-tect panel is receiving information via the RS232 port
RS422 LEDs
RS422 TXGreenLiqui-tect panel is transmitting information over the RS422 port
RS422 RXGreenLiqui-tect panel is receiving information over the RS422 port
RS485 LEDs
RS485 TXGreenNot presently used
RS485 RSGreenNot presently used
DS3
DS4
DS5
R38
R15
DS7
DS6
TB2
DS8
R16
R17
R18
R40
Reset
6
2.0INSTALLATION
2.1Installation Considerations
The Liqui-tect panel must be installed indoors and may be mounted on the surface of a wall or flushmounted, depending on the user’s application and the type of wall the unit will be mounted on. The
unit’s location must meet the following criteria:
• The panel must be placed close enough to the areas to be monitored to permit proper connection of
the leak detection cable. The panel will monitor two zones; each zone can accommodate up to
5,000 ft. (1524m) of leak detection cable.
• The Liqui-tect panel should be mounted where it can be easily accessed. Personnel would access
the unit through the LCD on its front cover or through SiteScan.
• The site also must have electrical service and must permit connection of the panel’s four digital
outputs, two inputs for leak detection cables and two analog outputs for connecting to a building
management system or external alarm.
• The wall material must be capable of supporting the weight of the Liqui-tect panel: see 7.0 -
Specifications.
NOTE
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
Installation
2.1.1 Unpacking and Preliminary Inspection
• Before unpacking the Liqui-tect panel, inspect the shipping carton for damage or signs of mishandling, such as gashes or holes in the carton or severely flattened corners.
• Open the shipping container carefully. Use care to avoid puncturing the container with sharp
objects that might damage the contents.
• Inspect the Liqui-tect panel and all included components for damage.
• If any damage from shipping or mishandling is observed, immediately file a damage claim with
the shipping agency and forward a copy to:
Removing the conduit knockouts before mounting the Liqui-tect panel on the wall will ease
installation and prevent strain on the mounting hardware and wall. It is imperative to remove
the knockouts if the unit is to be flush-mounted.
After determining where to place the unit, check to ensure that you have all the hardware required to
install the panel on the surface of a wall. Obtain the needed tools and material.
Required tools
• Electric drill (if surface is too hard to drive screws without pilot holes)
• Screwdriver
• Marker to denote layout of holes
• Four screws, each #10
2.2.1Mounting the Panel
CAUTION
!
Check building plans and other relevant documents to determine whether mounting the
Liqui-tect panel at the selected location might cause cutting or otherwise damaging electrical
or communication wiring or pipes.
1. Mark the wall for mounting holes, using the back of the unit as a template (see Figure 4).
2. Drill holes, if required, to install the four #10 screws that will secure the Liqui-tect panel to the
wall. Clean up the debris.
3. If the wall material is not strong enough to hold the screws securely, use wall anchors.
4. Install the top two screws—the screw heads must be small enough to slip through the larger,
bottom portion of the pear-shaped mounting slot in the Liqui-tect panel (see inset in illustration
at right). The screws must also be large enough to extend over the edges of the top of the
mounting slot.
5. Hang the Liqui-tect panel on the screws, letting the panel slip down until the screws are in the
smaller, upper portion of the slot.
6. Tighten the screws until they are snug.
7. Insert the remaining two screws in the bottom holes on the back of the panel and tighten.
Figure 4Mounting dimensions
Installation
LARGE ENCLOSURE
0.213"
(5.4mm)
0.375"
(9.6mm)
Mounting Slot
SMALL ENCLOSURE
12.5"
(317.5mm)
Liqui-tect panel
back plate
0.213" (5.4mm)
Bottom hole diameter
10"
(254mm)
12"
(304.8mm)
0.213"
(5.4mm)
16"
(406.4mm)
Liqui-tect panel
back plate
0.375"
(9.6mm)
Mounting Slot
0.213" (5.4mm)
Bottom hole diameter
8
2.3Flush-Mounting the Liqui-tect Panel
NOTE
Removing the conduit knockouts before mounting the Liqui-tect panel on the wall will ease
installation and prevent strain on the mounting hardware and wall. It is imperative to remove
the knockouts if the unit is to be flush-mounted.
The rectangular access doors on the top and bottom of the Liqui-tect panel must be removed
from the outside of the panel and reinstalled on the inside of the panel. Leaving the doors as
shipped from the factory prevents them from being opened when the panel is flush mounted in
a wall.
The Liqui-tect panel may be flush mounted according to company practices—either with screws
through the sides of the panel into wall supports or with hanging hardware that attaches to the back
of the panel. After determining how and where to place the unit, check to ensure that you have all the
hardware required to install the panel in the wall. Obtain the needed tools.
Required tools
•Saw
• Electric drill
• Screwdriver
• Marker to denote layout of the hole to accommodate the Liqui-tect panel
• Trim ring and associated hardware
• Mounting hardware
Installation
2.3.1Mounting the Panel
CAUTION
!
Check building plans and other relevant documents to determine whether mounting the
Liqui-tect panel at the selected location might cause cutting or otherwise damaging electrical
or communication wiring or pipes.
1. Mark the wall for the cutout to accommodate the panel, using the back of the unit as a template.
2. Drill a pilot hole for the saw blade, if required.
3. Use the saw to cut out the marked section of the wall (if not new construction).
4. Rest the Liqui-tect panel in the wall and mark where mounting screws will be inserted into the
wall studs or other support member.
5. Remove the panel and drill the holes for the mounting screws or wall anchors. Clean up the
debris.
6. Reverse the slide direction of the rectangular access doors on the top and bottom of the Liqui-tect
panel. Leaving the access doors as shipped from the factory prevents them from being opened
when the panel is flush mounted in a wall.
7. Attach any field-supplied mounting hardware.
8. Reinsert the assembly into the wall.
9. Insert and tighten the screws or wall anchors.
9
2.4Connect Power to the Liqui-tect Panel
The Liqui-tect panel requires 24VAC for proper operation. Liebert recommends using the optional
Transformer Module manufactured by Liebert or another UL-approved Class 2 power unit to obtain
proper voltage. If the power unit is not a Class 2 circuit, it must be protected with an IEC 5 x 20mm
time lag 2A fuse. For information, consult your local dealer, Liebert representative or the Liebert
Worldwide Support Group.
WARNING
!
Check that power is removed from wires prior to installation.
CAUTION
!
The Liqui-tect panel is designed for use on properly grounded (earthed) 24VAC power, 50Hz
or 60Hz. The ground wire for the power lead must be wired to the earth ground terminal (stud
located next to the 24VAC terminal block).
This equipment is intended to be installed by a qualified and certified electrician who must
review and approve customer supplied wiring and circuit breakers, verify correct input and
grounded (earthed) connections to ensure compliance with technical standards and national
and local electrical codes.
WARNING
!
Be sure that the power wiring is disconnected from the Liqui-tect panel before installing any
wiring to this unit.
Installation
2.4.1Input Power Connections - Small Enclosure
To connect electrical power:
1. Run conduit and electrical wiring from building to the Liqui-tect panel.
2. Use copper wires only; proper wiring to use for 24VAC power is 18-22 AWG stranded and shielded
(18 AWG is recommended—see Table 4). Strip wires 1/2".
Figure 5Electrical connections to panel
External wiring
through knockout
Ground wire
(black)
Earth ground
terminal
TB1
24V Power
EGND1
TVS3
FB2
Reset
SW3
24VAC wiring
(red & white)
24VAC input
connector
3. Secure the incoming electrical service wires to the Liqui-tect panel’s 24VAC input by sliding the
wires into TB1, the 24VAC input terminal block. There is no polarity requirement when
connecting to TB1. The ground wire must be connected to the earth ground terminal located on
the side of the panel (see Figure 5).
10
2.4.2Input and Output Power Connections - Large Enclosure
CAUTION
!
The 115VAC/230VAC Transformer Module must be connected to a branch circuit with 15A
branch circuit protection.
This equipment is intended to be installed by a qualified and certified electrician who must
review and approve customer supplied wiring and circuit breakers, verify correct input and
grounded connections to ensure compliance with the technical standards and national and
local electrical codes.
The Transformer Module shall be used only as indicated by the manufacturer.
WARNING
!
Be sure that the power wiring is disconnected from the Liqui-tect panel before installing any
wiring to this unit.
Input Power Connections
To connect electrical power to the Transformer Module:
1. Install electrical wiring from utility power to the Transformer Module.
2. Use copper wires only; proper wiring to use for power is 14/2 AWG copper wire with ground.
3. For the TM230 only: strip wires 3/8" (9.6mm).
Note: For the TM115, wires are pre-stripped 0.4" (10.2mm) at the factory.
4. Connect the wiring as follows:
Installation
TM115TM230Connection Type
White wireNeutral (L2)Neutral
Black wireLine (L1)Power (Line)
Green wireGround leadGround
5. Secure the incoming electrical service wires to the TM115 input wires with wire nuts as shown in
Figure 6 or to the TM230 connectors as shown in Figure 7.
24 VAC Output Power Connections
To connect to the 24VAC outputs:
1. Install electrical wiring from device requiring 24VAC power to the Transformer Module.
2. Use copper wire only; proper wiring to use for power is 18, 20 or 22 AWG copper wire. Strip wire 1/4".
3. There are two 24 VAC output connectors (TB1 and TB2). Terminate wires to the connector as
shown in Figures 6 and 7. TB1 and TB2 are NOT polarity sensitive.
4. Secure the wires to the connector.
Figure 6Power wiring to TM115Figure 7Power wiring to TM230
TM115
Wire nuts
connecting
electrical
wiring
Knockout for
external wiring
Ground
TM230
Neutral
(L2)
Knockout for
external wiring
Ground
Line (L1)
24VAC output
(TB1)
24VAC output
(TB1)
Troubleshooting - Transformer Module
A common problem and possible solution are shown in the table below. For further information or if
you have other problems with the unit, consult your local dealer, Liebert representative or the Liebert
Worldwide Support Group.
ProblemPossible SolutionReplacement Fuse Part Numbers
24VAC power not available
from TB1 or TB2
Check fuse for respective
output (TB1 or TB2).
11
• LITTLEFUSE 218002
• BUSSMANN GDC-2A
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