Edwards Signaling ReadySet - Manual (Page 42)

Chapter 5: Troubleshooting
34 ReadySET Aspirating Smoke Detection System Installers Handbook
Troubleshooting
Troubleshooting the ReadySET detector
This chapter provides some possible solutions if a problem should occur with your
ReadySET detector. If the problem is not addressed in this chapter or, if after
performing the suggested actions, the problem persists, contact Technical Support.
Problem Solution or corrective action
Nuisance alarms
occur too often This normally indicates that the detector is set at an alarm factor
inappropriate to the installed environment. Increase the alarm factor to
reduce sensitivity
.
Check that the ClassiFire alarm factor setting is appropriate for the
normal working environment of the protected area.
Check that the ClassiFire override switch is appropriately set to reflect
active and inactive periods.
The sensor chamber may be contaminated. If so, return the detector to
the factory for cleaning and recalibration
.
Elevated smoke
levels do not
generate alarms Check that detector is not in FastLearn (if in FastLearn, the OK light will
flash). Check if green OK LED is on and flashing.
The detector FastLearn cycle may have been carried out during or
immediately after a smoke test. Reinitialize FastLearn with the detector in
a clean environment.
Check that the detector sampling points are in the smoke stream.
Check that sampling pipes are firmly and cleanly seated in their ports and
undamaged.
Check that the correct alarm factor setting has been set. if the alarm
factor is too high, change the alarm factor to a lower, more sensitive
setting.
Check that the detector has had a 24-hour learning period.
Low mean output Check that the dust separator cartridge does not require changing
(refer to “Replacing the dust separator filter cartridge” on page 40 for
details) and that the air plenum chamber is clean. The chamber may
become clogged when, for example, heavy building activity has
occurred near the sampling pipes. If so, the chamber may require factory
service. The detector is not designed to handle large quantities of coarse
debris and dust.
Detector sensitivity
varies over time There are many reasons why particle densities may vary, and the
ClassiFire system is designed to automatically compensate for this in
order to reduce the likelihood of nuisance alarms due to normal
variations in background smoke density. Within limits set by the
ClassiFire alarm factor, this is a normal part of the detector‘s operation.