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WES+ Installation and Operations Manual V2.3 Ramtech Electronics 2017
The maintenance procedures described below should be conducted
with the following frequency:
One month after
: Routine inspection
Installation Routine
Inspection every 3
months thereafter
Every 6 months
: Operational Test
Every 12 months
: Cleaning
All above frequencies of maintenance are dependent upon ambient
conditions. Best judgment should be used to ensure proper
maintenance.
Routine inspection
i) Ensure the detector head is secure and undamaged
ii) Check the heat entry apertures are in no way obstructed.
iii) Ensure the surface of the detector’s outer cover is clean. If there
are deposits due to the presence of oil vapour, dust etc, the detector
should be cleaned in accordance with the cleaning instructions
detailed later. It may be advisable to ensure that such cleaning is
conducted regularly in the future.
iv) Ensure no equipment which may generate excessive heat has
been installed in the vicinity of the detector since the last routine
inspection. If such equipment has been installed, you should notify
the Safety Officer or other competent authority that its presence
may cause false alarms.
Operational Test
The purpose of the Operational Test is to confirm the detector’s correct
operation in response to a heat condition.
i) Testing the detectors will trigger the site wide alarm. To avoid
unnecessary evacutation site personnel should be informed when
testing starts and when testing is complete.
ii) Test the detector with heat from a warm air gun designed for heat
detector testing (e.g. ‘No Climb - Solo’ heat sensor tester). =
Check that the detector gives an alarm condition within 10-20
seconds depending upon the detector grade and the applied air
temperature.
N.B. Hot air blowers sold for paint stripping, soldering pipes etc,
generate sufficient heat to damage the detector and should not be
used for testing heat detectors.
iii) After the detector has given the alarm condition, silence the system
from a fire point or base station. It may be necessary to allow a
short time to elapse before resetting the detector, to allow any
residual heat from the test to disperse.
iv) Before proceeding to the next detector, ensure that the detector
just tested does not re-operate due to the presence of residual
heat.
Functional Test
The Functional Test checks the detector’s operation. These detectors
may be returned to Ramtech Electronics for Functional Testing.
Cleaning
Note: The detector head should NOT be disassembled.
i) Carefully remove the detector head from its base.
ii) Use a soft, lint-free cloth, moistened with alcohol for sticky depos
its, to clean the plastic casing.
iii) Using a soft bristle brush (e.g. an artist’s paint- brush) carefully
brush between the vanes and thermistor in a linear motion away
from the apertures on the plastic case.
iv) Ensure that no debris is left on or around the thermistor once
cleaning is complete.
v) If the unit needs further cleaning, or is damaged or corroded,
please return the complete detector to Ramtech Electronics for service.
Heat Detector Maintenance
