Ensure that the power supply of the control unit has been disconnected before connecting any mechanical parts or
cables.
Do not use the water leak detector in the vicinity of flammable liquids; do not use it to detect any flammable liquids.
4.5 Air Filter Maintenance
The efficiency of the configured filter is 30%, in compliance with industry standards such as the America ASHRAE52-
76 and Eurovent 4/5 standard; the dust resistance value is 90% (EU4 standard).
1. Set the filter maintenance and alarm logic to ensure efficient operation. The fan operating time is 2160 hours by
default (though the time is set and customized based on the local operating environment); the filter maintenance
alarm is triggered based on the configuration and settable operation time.
2. Check and replace the filter according to its dust and clogging condition. During normal operations, the filter
needs to be checked once a month and replaced as per the requirement.
Cut off the power before replacing the filter. Clear the fan operating time after replacing the filter.
4.6 Fan Kit Maintenance
Regular checking of the EC fans includes inspection of the motor operating status, fan impeller state, and the co-
operative clearance between the fan and wind-leading ring.
Check whether the fan or the wind-leading ring has been installed properly and firmly. Ensure that the fan blades do
not hit the adjacent metal plates under any circumstances. Clear the clogging element of the air duct to avoid damage
to the refrigerating system and other system kits due to reduced air volume.
In addition, the fan fault alarm of the control board and alarm point of the EC Fan is connected in series. If the rotating
speed is abnormal, the unit will ideally generate an EC fan fault alarm.
⚫ Turn off the fan/unit prior to replacement of the filter
⚫ The speed regulating control board of the outdoor EC fan has a possibility of an electric shock leading to injury.
Therefore, do not touch the board when the unit is powered on.
⚫ While the unit is powered on, do not strictly touch the fan mesh enclosure as it may end up damaging caused by the fan
operation.
4.7 Electrical Heater Maintenance
Following are the basic instructions relevant to the maintenance of the Electrical Heater from the user perspective:
1. If an optional electrical heater is used, then it should be monitored periodically.
2. Ensure that there is no dust, debris, or foreign matter on the surface. The heater elements will heat continuously
in the normal state.
3. Inspect the heater every six months for its functionality
If the heating is not effective, the electric heater needs to be replaced. For replacement, contact the maintenance
personnel and support team of Vertiv.
4.8 Refrigerating System Maintenance
Following are the basic instructions relevant to the maintenance of the Refrigerating system:
1. Check the refrigerating system once a month to ensure the system functionality.
2. Perform a visual check for detecting signs of wear and tear.
3. Regular inspection is a good practice to ensure long service life of the refrigerating system.
4. Check the refrigerant pipes once every 6 months to ensure that there is no wear and tear.
4.9 Drainage system maintenance
1. Inspect the water tray periodically for ensuring normal operation of the drainage pipe.
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