Vertiv Liebert DSE500, Installer/User Manual, Page: 49 / 77

Pumped-refrigerant Economizer
1. Check for refrigerant leaks
2. Check/Re-torque wire connections
3. Check contactors for pitting (replace if pitted)
4. Verify pump-speed control operation
5. Check pump mounting
MAINTENANCE NOTES
Name
Signature
Company
Make photocopies for your records. Compare readings/information to previous maintenance worksheet.
To locate your local Vertiv representative for Vertiv-engineered parts, check
https://www.vertivco.com/en-us/support/ or Call 1-800-543-2778.
9 Preventive Maintenance Checklist 49