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8
Scroll Compressor Electrical Phasing ............................................................................................ 63
Setting the Proper Electrical Phase Sequence ................................................................................ 63
Control Power Supply .................................................................................................................... 63
External Contacts and Peripherals ................................................................................................. 64
Required Chilled Water Flow Switch ............................................................................................ 64
Condenser Water Loss of Flow Protection .................................................................................... 64
Required Pump Control ................................................................................................................. 64
Remote Off/Auto ........................................................................................................................... 64
Remote Alarm ................................................................................................................................ 64
Smart Controls ................................................................................................................................... 65
Controls Interface............................................................................................................................... 69
Unit Controller — General ............................................................................................................ 69
Unit Controller ................................................................................................................................... 69
Software Installation and Setup ..................................................................................................... 69
Downloading and Installing Unit Controller (MCS-Connect) Software ....................................... 69
Connecting to the Chiller ............................................................................................................... 70
Setpoint Changes ........................................................................................................................... 70
Viewing and Troubleshooting ALARMS ...................................................................................... 70
Downloading and Viewing Graphs ................................................................................................ 70
Updating Chiller Software and Configuration Files ...................................................................... 70
Unit Start-Up Procedures ................................................................................................................... 72
Pre-Start ......................................................................................................................................... 72
Sequence of Operation ................................................................................................................... 73
Checking Operating Conditions ..................................................................................................... 73
System Superheat ........................................................................................................................... 74
System Subcooling......................................................................................................................... 74
Shut Down ......................................................................................................................................... 75
Normal Unit Shutdown .................................................................................................................. 75
Extended Shutdown Procedure ...................................................................................................... 75
Unit Restart ........................................................................................................................................ 75
Unit Restart After Extended Shutdown ......................................................................................... 75
Maintenance ....................................................................................................................................... 77
Periodic Maintenance..................................................................................................................... 77
Weekly Maintenance ..................................................................................................................... 77
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