Huawei FusionModule5000 Smart Modular Data Center Maintenance Manual page 31

SmartDC
Maintenance Guide
Item
Chilled water valve
Table 4-7 Quarterly maintenance for the management system
Item
Fire control linkage
function
Check the indicator on
the smart ETH
gateway.
Issue 04 (2020-03-25)
Operation
Choose Maint >
Diagnostic Mode >
Enter, and set the
chilled water valve
opening to 100%.
Operation
Simulate a smoky
environment under a
smoke detector or
multi-functional
sensor. (If real
smoke is not
allowed, press the
TEST button on the
sensor.)
Observe the PWR,
RUN, and ALM
indicators.
Copyright © Huawei Technologies Co., Ltd.
Standard
detector closes for 5s, the
water pump starts.
NOTICE
After checking the status,
promptly lay down the low
liquid level detector and dry the
electrodes of the high liquid
level detector to prevent the
water pump from running
empty for a long time.
Alternatively, remove the
conductors between the two
electrodes of the high liquid
level detector.
Check that the chilled water
valve handle automatically
turns to the maximum
opening.
Standard
 A smoke alarm is
displayed on the active
alarm page of the WebUI.

The skylight is opened.

The alarm beacon
produces audible and
visual alarms.

If the green PWR
indicator is steady on, the
power input is normal.
 If the RUN indicator
blinks slowly, the smart
ETH gateway is running
normally.
 The ALM indicator is off.
4 Routine Maintenance
Troubleshooting
If the handle does not
automatically turn to the
maximum, adjust the actuator
handle to the maximum
(100%).
Troubleshooting
 Check whether the smoke
detector or
multi-functional sensor is
faulty.
 Check whether the
skylight system is normal.
 If the alarm beacon
produces audible and
visual alarms, check
whether the alarm beacon
is faulty and whether the
cable connection is
proper.

If the PWR indicator is
off, check whether the 48
V power cable and
connectors are normal. If
not, reconnect them. If so,
replace them.
 If the RUN indicator
blinks at short intervals,
check whether the
communications cable is
loose or disconnected. If
so, reconnect the cable. If
not, replace the cable.
24