Vertiv Liebert CRV CRD25, Руководство пользователя

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Component Check Items
Maintenance Period
Monthly by user 3 months 6 months 1 year
Electronics
Check the condition of contactors X
Check electrical connections X
Check the operation of controller X
Check unit operation sequence X
Humidifier
Check steam hoses conditions X
Check cylinder conditions X
Refrigerant
circuit
Check compressor noise or
vibrations
X
Check sight glass for problems X
Check main refrigerant circuit
pressure
X
Check compressor suction
superheat
X
Check discharge temperature X
Condenser
Check fan bearings X
Check that the fan motors are
firmly secured
X
Check coil condition X
Check fan speed controller
operation
X
9.2 Air Filters
Check the air filters monthly to maintain efficient air distribution through the evaporator coil.
To replace filters:
1. Open the rear door and disconnect the main circuit breaker.
2. If the filters appear dirty, remove them. For details on removing filters, see Removing the Upper and Lower
Filters on page 22 .
NOTE: After cleaning or replacing the filter and before reassembling the unit, check that the air differential pressure
switch tubes are correctly installed.
9.3 Condensate Drain and Condensate Pump
Condensate drain
To maintain the condensate drain:
• Check and clear any obstructions in pipelines during routine maintenance.
• Check the filter routinely.
9 Maintenance
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Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual