Vertiv Liebert PEX+ Series - Page 9

Vertiv | Liebert PEX+ Chilled Water | User Manual iv
Table of Contents
5.3.1. Enable Protocols .......................................................................................................................................................................................... 78
5.3.2. Enable Modbus Protocol ....................................................................................................................................................................79
5.3.3. Configure Modbus TCP .......................................................................................................................................................................79
5.3.4. Configure Modbus RTU ......................................................................................................................................................................79
5.3.5. Enable BACnet Protocol ....................................................................................................................................................................80
5.3.6. Configure BACnet IP Protocol ........................................................................................................................................................81
5.3.7. Configure BACnet MSTP Setting ...............................................................................................................................................83
5.3.8. Enable SNMP ................................................................................................................................................................................................84
Chapter 6: System Start-up Commissioning .......................................................................................................................................... 85
6.1. Start-up Commissioning ................................................................................................................................................................................... 85
6.1.1. Preparation Before Commissioning .......................................................................................................................................... 85
6.2. Commissioning Procedures .........................................................................................................................................................................85
6.3. Inspection after Commissioning ..............................................................................................................................................................86
Chapter 7: System Operation and Maintenance .................................................................................................................................87
7.1. Routine Maintenance Inspection Items (Monthly) .................................................................................................................. 87
7.2. Routine Maintenance Inspection Items (Semi-Annual) ....................................................................................................88
7.3. Self-Diagnostic System .....................................................................................................................................................................................88
7.4. Check the Electrical Connections and Maintenance ........................................................................................................... 88
7.5. Appearance Inspection and Maintenance of Controller Components ...............................................................89
7.6. Filter Maintenance Guide ............................................................................................................................................................................... 90
7.7. Fan ..........................................................................................................................................................................................................................................92
7.8. Infrared Humidifier Maintenance Guide ............................................................................................................................................92
7.9. Electric Heater Maintenance Guide ...................................................................................................................................................... 93
7.10. Water Flow Control Valve ..............................................................................................................................................................................94
Chapter 8: Diagnosis and Troubleshooting .............................................................................................................................................95
8.1. Fault Diagnosis and Treatment of Fans..............................................................................................................................................95
8.2. Fault Diagnosis and Treatment of Infrared Humidifier .......................................................................................................96