Liebert DM Series User Manual page 6

5.6.7 Display Set .............................................................................................................................................. 34
Chapter 6 System Maintenance ........................................................................................................................................ 35
6.1 Electric Inspection ............................................................................................................................................... 35
6.2 Indoor Unit Maintenance ..................................................................................................................................... 35
6.2.1 Filter......................................................................................................................................................... 35
6.2.2 Fan .......................................................................................................................................................... 36
6.2.3 Drain Pipe ................................................................................................................................................ 37
6.2.4 Heater ...................................................................................................................................................... 37
6.2.5 Humidifier ................................................................................................................................................ 37
6.2.6 Power SPD .............................................................................................................................................. 39
6.2.7 Thermal Expansion Valve ........................................................................................................................ 39
6.2.8 High-Pressure Switch And Low-Pressure Switch .................................................................................... 40
6.2.9 Compressor ............................................................................................................................................. 40
6.3 Outdoor Unit Maintenance .................................................................................................................................. 41
6.3.1 Refrigeration System ............................................................................................................................... 41
6.3.2 Air-Cooled Condenser ............................................................................................................................. 41
6.3.3 Low-Temperature Unit Of Lee-Temp Outdoor Unit .................................................................................. 41
6.4 Maintenance Inspection Checklist ....................................................................................................................... 42
Chapter 7 Troubleshooting ................................................................................................................................................ 43
Appendix 1 Menu Structure ............................................................................................................................................... 44
Appendix 2 Parameter Setting Table ................................................................................................................................ 45
Appendix 3 RDU-Cooling Air-Conditioner Single-Unit Manager Software Introduction ..................................................... 47