Vertiv | Liebert® CRV4 | User Manual 99
System Operation and Maintenance
• For the residual refrigerants in the system, standard devices should be used to recover them before
maintenance.
• Emission of refrigerants into the air can cause environmental pollution. Refrigerant emissions must
comply with national and local laws and regulations.
• Attention should be paid to the direction when installing the lter dryer. Ensure that the arrow points to
the sight glass.
No. Description No. Description
1 Rear 3 Compressor threaded joint
2 Filter Dryer
Figure 8-7 Replace the Compressor
8.10. Drainage System Maintenance
1. Inspect the water tray periodically for ensuring normal operation of the drainage pipe.
2. Ensure no sediments, debris, foreign matter, or leakage occurs in the water tray.
3. Check and clean the water tray lter regularly to prevent poor drainage caused by blockage.
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