A data center server room has a high voltage alarm, check the machine alarm logs in a total of three categories:

First, low supply voltage does not start. Low power supply voltage does not start is often due to voltage reduction or phase failure, low supply voltage, resulting in 24v transformer output voltage is insufficient; condenser 24v AC contactor can not work. The specific need to use a multimeter to test to determine. If necessary, equip with grid regulator.

Compressor failure alarm is one of the most common alarms in the server room precision air conditioning, in the refrigeration system, the high voltage controller is set at 350psig, the machine is running, when the high voltage value reaches this limit, the high voltage alarm is generated. To make the compressor start again, it must be manually reset; however, before pressing the reset button, the cause of the high pressure must be identified in order to make the machine run normally.

Second, the compressor high pressure alarm. For refrigeration systems, it is recommended to clean the surface of the condenser dust and dirt, but care should be taken not to damage the copper tubes and fins. If the alarm still appears after maintenance, the alarm can be eliminated by performing maintenance in the system menu, maintenance cycle.

Third, the humidifier refrigeration system needs maintenance. It is usually caused by an obstacle in the refrigeration cycle, such as too high Freon pressure, too low pressure or the resulting overheating of the press and other reasons. The specific need to use the pressure gauge to test to determine.

For the humidifier and refrigeration system requires maintenance of the alarm processing, humidifier normal operation process, mineral particles and other deposits will gather on the humidifier pan. These deposits must be regularly maintained and removed to ensure efficient operation of the humidifier. As water sources around the world have different characteristics, so the time of cleaning gradually should be decided by each place itself.

It is recommended that monthly maintenance checks be performed on precision air conditioners in data center rooms (if necessary, they should be cleaned monthly). By draining the pan (removing the vertical pipe), disconnecting the drainage pipe coupling and removing the set screws at both ends of the pan, the deposits on the pan of the humidifier can be easily removed.