Vertiv Liebert CRV Plus - Fan Kit Maintenance; Electrical Heater Maintenance; Refrigerating System Maintenance; Drainage System Maintenance

Vertiv | Liebert CRV+ | User Manual 74
3.2.6 Fan Kit Maintenance
Regular checking of the EC fans includes inspection of the motor operating status, fan impeller state, and
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 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.
3.2.7 Electrical Heater Maintenance
Following are the basic instructions relevant to the maintenance of the Electrical Heater from the user
perspective:
 If an optional electrical heater is used, then it should be monitored periodically.
 Ensure that there is no dust, debris, or foreign matter on the surface. The heater elements will
heat continuously in the normal state.
 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.
3.2.8 Refrigerating System Maintenance
Following are the basic instructions relevant to the maintenance of the Refrigerating system:
 Check the refrigerating system once a month to ensure the system functionality.
 Perform a visual check for detecting signs of wear and tear.
 Regular inspection is a good practice to ensure long service life of the refrigerating system.
 Check the refrigerant pipes once every 6 months to ensure that there is no wear and tear.
3.2.9 Drainage system maintenance
 Inspect the water tray periodically for ensuring normal operation of the drainage pipe.
 Ensure no sediments, debris, foreign matter, or leakage occurs in the water tray.