Optional Test Method; Troubleshooting; Maintenance; Routine Visual Inspection - UTC Fire and Security Det-Tronics Dual Spectrum PM-5MPX Instructions Manual

3. Interconnection Wiring. Correct interconnection
wiring should be checked by disconnecting any wire
from the multi-conductor cable were it is connected
to the power or alarm circuit. The result, in an
approved wiring scheme, should be a trouble signal
indication at the control panel.
4. Restore Fire protection System. Restore the
system to an operational condition after all tests have
been completed.

OpTIONAl TEST mETHOD

With the detector powered up, the following tests can be
done. False alarm immunity can be checked using stimuli
and distances shown in the table in Appendix A. Fire
response can be checked by exposing the detector
under test to a live fire source. (See Appendix A.) Follow
all required precautions when testing in this manner.

TROUBLESHOOTING

See Table 3.
Symptom
Trouble signal at fire alarm
control panel.
Detector does not alarm during
FIRE RESPONSE test with
PSS-MP.
Red LED out.
3.2

MAINTENANCE

ROUTINE vISUAl INSpECTION

A properly installed PM-5MPX detector system is highly
resistant to blinding by contamination build-up on the
detector front face window. However, a thick enough
build-up will begin to reduce the performance of the
detector. This can be prevented by periodically inspecting
installed detectors visually for contamination build-up on
the detector front face. If such a build-up is observed, it
should be removed by cleaning the detector front face
window with a soft cloth or lens tissue. The minimum
inspection period should be compatible with appropriate
regulating agency requirements.

pERIODIC SySTEm TEST

The authority having jurisdiction and internal facility
requirements generally call for routine testing of safety
systems at defined intervals, which, at a minimum, should
conform to the requirements of NFPA 72. These tests
should include visual inspections and the steps listed in
the System Test section above.
A full system test results in an alarm output. This
will result in the suppression system being activated
if it is not disabled prior to testing.
Table 3—Troubleshooting Guide
Probable Cause
Incorrect wiring.
Low or no voltage to detector.
Detector malfunction.
Incorrect wiring
PSS-MP temperature different
from detector.
Low Batteries in PSS-MP.
Detector malfunction.
Incorrect wiring or incorrect power
to the detector.
Detector malfunction
6 6
WARNING
Corrective Action
Check circuit installation.
Check voltage of Red or Orange
wire with respect to the Black or
Brown wire. Should be 9 to 30 vdc.
Replace Detector.
Check circuit installation.
Allow detector and PSS-MP tempera
tures to stabilize. Turn on PSS-MP at
least 15 seconds prior to test.
Replace batteries and retest.
Replace detector.
Check circuit installation.
Replace detector.
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