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No. Alarm Information
4
Leak Active
5
Fire Active
6
Smoke Active
7
Comm Abnormal
Return/Supply
8
Sensor
Remote sensor # is
9
abnormal
Abnormal chilled
10
water inlet sensor
Abnormal chilled
11
water outlet sensor
12
Flow Meter
13
Fan number # failed
Chilled water ball
14
valve is abnormal
Possible cause
Leakage is detected. Remove
the surplus water and
inspect the water level of the
condensed water pan.
Fire detection is triggered.
Smoke detection is triggered.
The CAN-Link port wiring
is wrong or the unit ID is
repeated.
The air return/supply sensor is
abnormal or in bad contact.
Remote sensor # is abnormal
or in bad contact
The chilled water inlet sensor
is abnormal or in bad contact.
The chilled water outlet
sensor is abnormal or in bad
contact.
in bad contact.
The # fan is abnormal or in
bad contact.
The three-way ball valve is
abnormal.
47
Chapter 7
Elimination method
Inspect if the drain function is normal
water pipe has no bending, damage
or blockage. If the upper piping is
vertical elevation is no greater than
5 meters.
Inspect the environment and
eliminate the abnormality.
Inspect the environment and
eliminate the abnormality.
Inspect the CAN-Link port wiring
units connected in series have
independent and non-repeated IDs.
Inspect the function of the air return/
is stable.
Inspect the function of the sensor #
Inspect the function of the chilled
wiring is stable.
Inspect the function of the chilled
wiring is stable.
Inspect if the # fan is blocked or
wire is correctly connected.
Inspect if the three-way ball valve is
in bad contact or faulty.
Troubleshooting
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