GENERAL INFORMATION
The 5821 Flood Detector & Temperature Sensor is a wireless transmitter used with Honeywell Home's alarm systems that support
5800 series devices. The 5821 can be configured to operate,
•
as a stand-alone temperature sensor and/or,
as either a Flood Detector or Remote Temperature Sensor.
•
The 5821 in combination with the FP280 or 470PB probe can be used to sense floods in basements and other areas where there
is a possibility of flooding. The 5821 will send an alarm when the preset temperature limit is exceeded or when a flood is
detected. Temperature monitoring and flood detection is dependent on the operating mode selected. Refer to Table 1 for
applicable operating modes.
The 5821 in combination with the T280R temperature probe is ideal for monitoring refrigerators and freezers in restaurants, kitchens
and warehouses where food storage is a concern.
A separate 5821 is required for each external probe being used.
Flood detection is monitored remotely using the FP280 or 470PB probe with the supplied resistor.
•
•
Room temperature is monitored at the device using the 5821's internal sensor.
Refrigerator or Freezer temperature is monitored remotely using the T280R temperature probe.
•
In refrigerator or freezer applications, when the temperature increases past the high threshold limit and a delay of greater than 30
minutes passes, an alarm is triggered.
refrigerator or freezer doors.
TAMPER SUPERVISION
The 5821 tamper supervision feature (Loop 4) causes a trouble signal to be sent to the control if the unit's cover is removed from the
base or if an external probe is used and the wire is cut (open) or the probe is shorted. The tamper switch is also used to program the
unit's serial number and loop assignments to the control panel.
Wireless Transmission Path Test
Before permanently installing the detector, determine that there is good signal reception from the proposed location. Perform the test
procedure described in TESTING THE DETECTOR section. Once confirmed, mount the detector.
MOUNTING
• Mount the 5821 in any direction, on a wall or ceiling,
within the protection area.
• We recommend that the mounting plate be used.
• Avoid mounting the detector near heat generating
devices (e.g. ovens, heat vents, furnaces, boilers) or to
a metal cabinet or surface.
When used in-conjunction with:
- FP280 flood sensor probe, with built-in wire approx. 16
feet long (5 meters) ready to tie into 5821 device.
- 470PB flood sensor probe, use no more than 48 inches
of wire from the 5821 to the flood sensor and connect the
termination resistor across the probes terminals.
- T280R temperature probe, use the shortest wire
possible (less than 96 inches) to improve the signal
integrity.
IMPORTANT: DO NOT remove the circuit board from the back case plastic.
External Probe Wiring Connections (If used)
1. With the battery not inserted, connect the wires to the unit's sensor terminals; see below.
2. Install the battery.
Flood Detector with Temperature Sensing Option
Installation & Setup Guide
This preset delay offers greater reliability against false alarms, especially due to open
5821
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