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HP Modular Cooling System User Manual

Page 51

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Operator display 51

NOTE:

To clear the condensation pump cycles warning, click Cooling System in the left

navigation frame to access the Cooling System screen, and then click the Alarms/Warnings tab.

Under the Warnings section, set Alarm Reset to Manual and click Save Settings. Then, return to
the General menu and click Clear Alarms.

This step only clears the warning when the condensation pump is not running.

Both doors are open

Indicators

Meaning

Operator display alarm

message

Both front and rear rack doors are open.

Web interface alarm

message

Both doors are open.

Condition

Both the front and rear rack doors are open. The system shuts down the fans and closes
the water valve.

Modules or sensors

Rack door sensor

SNMP notification

Alarm

Type of message

Alarm

Solution:

1.

Verify that the front and rear doors are closed.

2.

Verify that an operating condition has not triggered the automatic door opening feature.

NOTE:

Be sure your temperature threshold is not set too low. See Emergency Door Opening

messages.

Water Input Temperature is lower than dew point

Indicators

Meaning

Operator display alarm

message

Dew point warning

Web interface alarm
message

Water Input Temperature lower than dew point

Condition

Either the front or rear door is open, and the water input temperature is lower than the
calculated dew point. The fans automatically switch to 75% of maximum speed.

Modules or sensors

Humidity sensor

SNMP notification

Warning

Type of message

Warning

Solution:

1.

Verify that both the front and rear doors are closed.

2.

Verify that the server load meets the minimum load specified for inlet water temperature in the HP
Modular Cooling System 200/100 Site Preparation Guide.