Huawei NetCol5000-A User Manual page 34

ACC Precision Air Conditioner Controller
User Manual
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Configurations of temperature and humidity alarms and main board alarms for the chilled
water devices comply with the following relationships:
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Context
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Be careful when configuring alarms. Only professional maintenance personnel can change
alarm settings.
Procedure
Step 1 Choose Settings > Alarm Settings > T/H Sensor on the home screen.
displayed.
Issue 02 (2016-11-30)
Supply-air HT alarm threshold + 5°C ≤ Return-air HT alarm threshold
Supply-air HT alarm threshold + 5°C ≤ Hot aisle HT alarm threshold
Cold aisle HT alarm threshold + 5°C ≤ Hot aisle HT alarm threshold
Cold aisle HT alarm threshold + 5°C ≤ Return-air HT alarm threshold
Supply-air LT alarm threshold + 5°C ≤ Return-air LT alarm threshold
Power underfreq alarm threshold < Power overfreq alarm threshold
Supply-air HT alarm threshold + 5°C ≤ Return-air HT alarm threshold
Supply-air HT alarm threshold + 5°C ≤ Hot aisle HT alarm threshold
Cold aisle HT alarm threshold + 5°C ≤ Hot aisle HT alarm threshold
Cold aisle HT alarm threshold + 5°C ≤ Return-air HT alarm threshold
Supply-air LT alarm threshold + 5°C ≤ Return-air LT alarm threshold
Supply-air LT alarm threshold + 5°C ≤ Hot aisle LT alarm threshold
Cold aisle LT alarm threshold + 5°C ≤ Hot aisle LT alarm threshold
Cold aisle LT alarm threshold + 5°C ≤ Return-air LT alarm threshold
The content described in this section is optional. To set whether to report an alarm, or set
the time delay duration or threshold, follow the instructions in this section. The enabling
functions include the following three choices:
Allow
−
Alarms are reported to the EMS. Active alarms are displayed on the LCD and the
system performs related protection actions.
− Block
New alarms are not reported to the EMS. The EMS can detect alarms that are
generated before the blocking. Active alarms are displayed on the LCD and the
system performs related protection actions.
− Disallow
Alarms are not generated and no protection actions are performed.
The method for setting each alarm is the same. This section describes how to set Delay
of Supply-air HT to 5.
If you need to change alarm settings, log in as the Admin or Engineer user.
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3 Power-on Commissioning
Figure 3-18 is
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