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D400-54-00

2

I56-690-04

Installation

NOTE:

All wiring must conform to applicable installation
codes and regulations.

NOTE:

Verify that all detector bases are installed, that the
initiating-device circuits have been tested, and that
the wiring is correct. (Refer to detector base
manual for testing procedure.)

CAUTION

Disconnect  the power from initiating-device circuits before
installing detectors.

1. Install Detectors:

a. Insert  the detector into the detector base.
b. Turn the detector clockwise until the detector drops

into place.

c. Continue turning detector clockwise to lock it in place.

Tamper-Resistance Feature

The detector bases include a feature that, when activated,
prevents removal of the detector without the use of a tool.
Refer to  the installation instruction manual of the detector
base to make use of this capability.

2. After all detectors have been installed, apply power to

the control unit.

3. Test the detector using the magnet as described under

TESTING.

4. Reset the detector at the system control panel.

5. Notify the proper authorities the system is in operation.

Figure 1. Test magnet position:

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Summary of Contents for 4451HT

Page 1: ...unces 150 g Installation Temperatures 32 to 150 F 0 to 66 C Operating Humidity Range 10 to 93 Relative Humidity Latching Alarm Reset by momentary power interruption Sensitivity 190 F 88 C Operating Voltage 15 35 VDC Standby Current 100 µA General Description The 4451HT and 4451HTA detectors are fixed intermediate temperature alarm thermal detectors utilizing a state of the art dual thermistor sens...

Page 2: ...ector clockwise until the detector drops into place c Continue turning detector clockwise to lock it in place Tamper Resistance Feature The detector bases include a feature that when activated prevents removal of the detector without the use of a tool Refer to the installation instruction manual of the detector base to make use of this capability 2 After all detectors have been installed apply pow...

Page 3: ... the plastic and damage the cover NOTE If a detector goes into alarm it will reset only if the detector has cooled and if its power is momentarily interrupted Check the control panel being used to determine whether the RESET switch or some other auxiliary device or control momentarily cuts off power to the detector loop Detectors that fail these tests should be cleaned as de scribed under MAINTENA...

Page 4: ...o you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state WARNING The Limitations of Property Protection Heat Detectors Heat detectors do not always detect fires because the fire may be a slow smoldering low heat type producing smoke or because they may not be near where the fire occurs or because the heat of the fire may bypass them Heat...

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