D400-56-00 2 I56-699-11
1. Position the magnet against the cover opposite the
test module socket. (See Figure 1.)
2. The LEDs on the detector should light within 10 sec-
onds. If the LEDs fail to light, check the power to the
detector and the wiring in the detector base.
3. Reset the detector at the system control panel.
B. Test Module (System Sensor Model No. MOD400R)
The MOD400R is used with a DMM or volt meter to
check the detector sensitivity as described in the
module’s manual.
C. Direct Heat Method (Hair dryer of 1000 - 1500 watts)
From the side of the detector, direct the heat toward the
sensor. Hold the heat source about 15 cm away to pre-
vent damage to the cover during testing.
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 MAINTENANCE and retested. If the detec-
tors still fail these tests they should be returned for repair.
Figure 1:
Maintenance
The 5451EIS detector has been designed to be as mainte-
nance-free as possible. Normal air-borne dust, however,
can accumulate on the detector’s sensing elements and
cause them to become less sensitive. All detectors should
be tested and cleaned at least once a year, and those in
dustier areas should be tested and cleaned more often. De-
tectors must also be cleaned and tested immediately after a
fire. Before cleaning, notify the proper authorities that the
system is undergoing maintenance, and therefore the sys-
tem will temporarily be out of service. Disable the loop or
system undergoing maintenance to prevent unwanted
alarms.
1. Remove detector from mounting base.
2. Use a vacuum cleaner to remove dust from the sensing
chamber.
3. Reinstall the detector.
4. Test detector as described under TESTING.
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 detectors will not detect smoke, gas, flames, or
combustion particles.
Heat detectors are components in professionally installed fire alarm
systems. They will not function if they have been improperly wired
into the fire alarm system or if power to them is cut off for any reason.
Heat detectors cannot last forever. They should be tested and maintained
following the instructions in this manual. To be safe, they should be
replaced after they have been installed for 15 years.
Refer to NFPA 72 for application.
This heat detector is designed to activate and initiate emergency action,
but will do so only when it is used in conjunction with an authorized fire
alarm system. This detector must be installed in accordance with NFPA
standard 72.
Heat detectors will not work without power. AC or DC powered smoke
detectors will not work if the power supply is cut off for any reason.
Heat detectors are designed to protect property, not life. They do not
provide early warning of fire and cannot detect smoke, gas, combustion
particles, or flame. They alarm when temperatures at the heat detector
reach 57°C (135°F). Given the rapid growth of certain types of fires, heat
detectors cannot be expected to provide adequate warning of fires
resulting from smoking in bed, inadequate fire protection practices,
violent explosions, escaping gas, improper storage of flammable liquids
like cleaning solvents, other safety hazards, or arson.
