iManager NetEco 6000
Device Installation and Commissioning Guide
7 Device Maintenance
Issue 03 (2019-03-10)
Copyright © Huawei Technologies Co., Ltd.
253
Item
Mainte
nance
Interva
l
Method
Expected
Result
Exception Handling
Smoke
detector
indicator
Monthl
y
Observe and
check whether
the indicator on
the smoke
detector is
normal.
The indicator
blinks once
every 6 seconds.
(The interval
varies with
sensors. See the
product
instructions.)
If the indicator blinks twice
every 6 seconds or does not
blink, the smoke detector is
faulty or the cables are not
properly connected. Check
the cables or replace the
smoke detector.
Smoke
detector
availability
Monthl
y
Use a dedicated
test instrument
or a smoke
generator to test
the smoke
detector. Blow
smoke to the
smoke detector
probe and
observe the
indicator status.
If the smoke
density is
below the
alarm
threshold,
the alarm
indicator
blinks once
every 6
seconds.
If the smoke
density
exceeds the
alarm
threshold,
the alarm
indicator is
steady on.
If the smoke density is
below the alarm
threshold but the alarm
indicator blinks twice
every 6 seconds, the
smoke detector is
faulty. Replace the
smoke detector.
If the smoke density
exceeds the alarm
threshold but the alarm
indicator is not steady
on, replace the smoke
detector.
You are advised to clean the smoke detectors every two years.
7.1.1.4 Routine Maintenance for the Hydrogen Detection System
Table 7-4
Routine maintenance for the hydrogen detection system
Item
Maintena
nce
Frequenc
y
Expected Result
Exception Handling
Check whether
the hydrogen
collector has
generated
alarms.
Monthly
The hydrogen
collector is working
properly, and no
alarm is generated.
Troubleshoot by following
instructions in documents
delivered with the hydrogen
collector.