Huawei NetCol5000-A020 User Manual page 57

NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
Terminal
09, 10
11, 12
13, 14
15, 16
a: The emergency switch for remote shutdown should be steady on.
b: A water sensor monitors resistance changes at terminals to check whether the floor is
watery. The resistance at the terminals becomes small if the terminals detect water or any
other conductive liquid. Keep the water sensor far away from drain traps or floor drains in
the equipment room and at least 0.5 m from the air conditioner.
Figure 3-31
Issue 01 (2014-06-30)
Definition Function
and controls the shutdown of the
indoor unit. Terminals 07 and
08 are disconnected before
delivery
The signal output cables for
Water sensor port
reporting Floor water overflow
alarm are connected to terminals
09 and 10.
Smoke sensor The signal output cables for
port reporting smoke alarms are
connected to terminals 11 and
12. After the smoke sensor is
installed, the NetCol5000-A020
generates an alarm when a fire
occurs.
Port for reporting The signal output cables for
mains outage reporting mains outage alarms
alarm are connected to terminals 13
and 14. The NetCol5000-A020
generates an alarm when mains
outage occurs.
Reserved N/A
shows routing of the signal cable and the location of the water sensor.
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Copyright © Huawei Technologies Co., Ltd.
a
.
b
.
3 Installation Guide
Dry Contact
Feature
indoor only, and the
usage range is within
100 meters.
N/A
Dry contact port type:
normally open in
normal status and
normally closed when
a fault occurs
Current type: 12 V
DC operating voltage.
An alarm is generated
when the operating
voltage is greater than
or equal to 3 mA. The
Huawei product is
recommended.
Can connect to the
dry contact input, but
cannot connect to
active loads. The dry
contact must be used
indoor only, and the
usage range is within
100 meters.
N/A
50