Carrier N1-LDT4-RS5-BB-C Manual
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Carrier N1-LDT4-RS5-BB-C Manual

Water leak detector
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#26268 – 6/5/24
Identification and Overview
The Water Leak Detector is designed to sense the presence of water
and alert a central monitoring system of the potentially destructive
situation. The unit is available in three different models with the
Attached Sensor or Remote Sensor.
Part #: N1-LDT4-RS5-BB-C
Specifications
Power:
24VAC ±10% (If VDC power is required, call your rep.), 5
Amp Relays: 4 Watt / 4 VA max
Rectification:
Half Wave
Wiring:
Screw Terminals: 2 to 4 pair of 12 to 22AWG
(recommended 16 to 22AWG).
Water Detection Sensor: 2 wires (provided), optional
Flex Connector or Liquid Tight Fitting for strain relief
Sensor:
Attached Sensor: .. Sensor w/ adjustable depth screw from
0.063 to 0.84" (1.60 to 21.34mm)
Remote Sensor:.... Sensor w/ adjustable depth screw from
0.062 to 0.5" (1.57 to 12.70mm)
(Attached and Remote Sensors are designed to be
mounted to flat surfaces or on the rims of drip pans.)
Latching and Supervised Relay Options:
Latching ................ Relay stays in alarm until manually
reset or power is cycled
Non-Latching ......... Relay automatically resets after water
is removed (default)
Unsupervised ........ Relay energizes on water detection
Supervised ............. Relay de-energizes on water detection
(default) Note: Relay de-energizes on
loss of power
Catalog No. 11-808-1034-01
Reset Action:
If latching, local pushbutton or power interrupt
Local Indication:
One green power LED, one red alarm LED
Alarm Relay Contacts:
LDT4: Two SPDT, 5 Amp relay outputs
Operating Environment
Remote Sensor: ......... -20 to 185ºF (-20 to 70ºC), 0 to
Detector BBox: ........... -4 to 158ºF (-20 to 70ºC), 0 to
Enclosure Material and Ratings:
NEMA 4 (IP66), UV-resistant polycarbonate, UL94 V-0
Agency:
RoHS, UL
Warranty:
5 years
Specifications subject to change without notice.
Water Leak Detector
100%RH, condensing
95%RH, non-condensing
Specification
Page 1 of 9

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Summary of Contents for Carrier N1-LDT4-RS5-BB-C

  • Page 1 The Water Leak Detector is designed to sense the presence of water and alert a central monitoring system of the potentially destructive situation. The unit is available in three different models with the Attached Sensor or Remote Sensor. Part #: N1-LDT4-RS5-BB-C Specifications Reset Action: Power: 24VAC ±10% (If VDC power is required, call your rep.), 5...
  • Page 2 Water Leak Detector Specification #26268 – 6/5/24 Dimensional Drawing Catalog No. 11-808-1034-01 Specifications subject to change without notice. Page 2 of 9...
  • Page 3 Water Leak Detector Installation and Operation #26268 – 6/5/24 Mounting ATTACHED SENSOR 1. Set the sensor in a location where a water leak is likelyto occur. 2. Use the 4 screw holes on the feet of the bracket to secure the sensor.
  • Page 4 Water Leak Detector Installation and Operation #26268 – 6/5/24 1. Loosen wing nut. 2. Set the required depth of the sensor probe screw using a #2 Phillips screwdriver. 3. Hold the sensor probe screw stationary with the screwdriver. 4. Turn the wing nut down the probe screw until it engages the plastic.
  • Page 5 Water Leak Detector Installation and Operation #26268 – 6/5/24 Figure 8: Horizontal Pipe Rope Sensor Mounting Figure 6: Rope Sensor Hot Water Tank Pan Mounting Figure 9: Vertical Pipe Rope Sensor Mounting Figure 7: Sub-Floor Rope Sensor Mounting Combining Sensors The following combinations of sensors can be used: 1.

  • Page 6: Wiring And Termination

    Water Leak Detector Installation and Operation #26268 – 6/5/24 Wiring and Termination Terminal Description A .... Water Sensor (No polarity to water sensor cable) B ... Water Sensor (No polarity to water sensor cable) NC2 ..Alarm Contact 2, Normally Closed toC2 when De-energized C2 ..

  • Page 7: Operation Sequence

    Water Leak Detector Installation and Operation #26268 – 6/5/24 Setup and Commissioning INDICATION/CONTROLS DESCRIPTION Red LED LED illuminates when water is detected Green LED LED illuminates when normal power is applied Reset Button (SW1) Resets manual alarm contact (only if water is no longer present) Figure 12: Reset Button FIELD CONFIGURABLE JUMPER (J1) SET UP...

  • Page 8: Maintenance

    Water Leak Detector Installation and Operation #26268 – 6/5/24 Detectable Liquids The sensors are designed to detect the presence of water and other conductive fluids. Tests have been performed on multiple liquid types to see which are detectable and which are not. Before leaving the installation, always check the sensor with the liquid you are trying to detect as every environment and application may be different.

  • Page 9: Legal Statement

    Legal Statement This unit is not intended to be a safety device. In no event shall Carrier® or its officers, directors, employees or agents be liable to any company or individual for any indirect, incidental, special, exemplary, punitive or consequential damages including, without limitation, economic or commercial losses, arising out of or resulting from the misuse of this water detector as a safety device.

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