5.7.1 Liebert MC Charging, Units with Liebert Lee-Temp™ Receivers 78
5.7.2 Liebert MC Condenser Charging with Liebert DSE™ Receivers 79
5.7.3 Liebert MC Charging, Premium Efficiency Control, Units without Receivers 79
6 Checklist for Completed Installation 83
6.1 Moving and Placing Equipment 83
6.2 Electrical 83
6.3 Piping 83
6.4 Other 84
7 Initial Startup Checks and Commissioning 85
7.1 Startup Checklist 86
7.2 Initial Startup 86
8 Troubleshooting 87
9 Control Operation 89
9.1 Premium Efficiency Control Board and Interface 89
9.1.1 Initial Screen Upon Power-On 91
9.1.2 Main Menu Description 91
9.1.3 Analog Signals Menu Description 92
9.2 Premium Efficiency Condenser Alarm Codes 93
9.2.1 Active Alarms Menu Description 94
9.2.2 History Alarms Menu Description 94
10 Liebert Seismic Application—OptionalUnitConfiguration 99
10.1 Seismic Anchoring Considerations 99
10.2 Seismic piping considerations 107
10.3 Seismic wiring considerations 107
11 System Maintenance 109
11.1 General Procedures 109
11.2 Condenser Cleaning 110
11.2.1 When to Clean the Condenser Coil 110
11.2.2 What to Use to Clean the Condenser Coil 110
11.2.3 How to Clean the Condenser Coil 110
11.3 Fan Replacement 111
11.3.1 Verify the Fan Address 115
11.4 Premium Efficiency Control Board Replacement 120
11.4.1 Replacement Preparation 120
11.4.2 Installation 121
12 Preventive Maintenance Checklist 123
Vertiv | Liebert® MC™ Installer/User Guide | 4
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