Vertiv Liebert DA250 - Condensate Pump (if equipped); Electrical Panel; Controls; Refrigeration Piping

Condensate Pump (if equipped)
o Check for debris in the sump.
o Check the operation of float(s) (free movement).
o Check/clean the discharge check valve.
Electrical Panel
o Check the fuses.
o Check the contactors for pitting (replace if pitted).
o Check/re-torque the wire connections.
Controls
o Check/verify the control operation (sequence).
o Check/test the changeover device(s) (if equipped).
o Check/test the water detection device(s) (if equipped).
o Check/test the CAN connection between the indoor and outdoor units (if equipped).
Refrigeration Piping
o Check the refrigerant lines (clamps secure/no rubbing/no leaks).
o Check for moisture (sight glass).
o Check for restriction temperature drop across filter drier.
Vertiv | Liebert® DSE Thermal Management System Installer/User Guide
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