Johnson Controls YORK YMC2

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Contents

General safety guidelines................................................................................................................................5

Safety symbols....................................................................................................................................... 5

Wiring warning.......................................................................................................................................6

Refrigerant warning.............................................................................................................................. 6

YORK Chiller Access Manager - system security statement............................................................. 6

Changeability of this document...........................................................................................................8

Associated literature..............................................................................................................................9

Conditioned based maintenance.......................................................................................................10

Proactive services................................................................................................................................ 10

Nomenclature...................................................................................................................................... 10

System fundamentals.................................................................................................................................... 12

System components............................................................................................................................12

System operation description............................................................................................................ 17

System operating procedures...................................................................................................................... 21

Pre-starting...........................................................................................................................................21

Condenser water temperature control.............................................................................................21

Start-up................................................................................................................................................. 21

Chiller operation.................................................................................................................................. 22

Chilled liquid control settings.............................................................................................................22

Operator setpoints quick reference.................................................................................................. 24

Stopping the system............................................................................................................................24

Safety stop............................................................................................................................................ 24

Operating logs..................................................................................................................................... 25

Fault shutdowns...................................................................................................................................25

Preparing for prolonged shutdown.................................................................................................. 26

Restart after prolonged shutdown....................................................................................................26

OptiView Control Center functions and navigation................................................................................... 27

Interface conventions......................................................................................................................... 27

Languages............................................................................................................................................ 36

Analog input ranges............................................................................................................................36

OptiView screens................................................................................................................................. 37

Master slot numbers list..................................................................................................................... 89

Display messages................................................................................................................................ 94

VSD operation...............................................................................................................................................127

OptiSpeed compressor drive overview........................................................................................... 127

OptiSpeed compressor drive features............................................................................................127

Smart sensor system.........................................................................................................................128

Maintenance................................................................................................................................................. 144

Preventative maintenance................................................................................................................144

Renewal parts.....................................................................................................................................145

YMC

Mod B with OptiView Control Center