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Table of Contents
Figures ...................................................................................................................................................3
Tables ....................................................................................................................................................4
Notice ....................................................................................................................................................4
Reference Documents ............................................................................................................................4
Revision History ....................................................................................................................................5
Introduction............................................................................................................................6
Applying the CSM .................................................................................................................................8
Typical Chilled Water System ...........................................................................................................8
Chiller Evaporator Configuration ......................................................................................................8
Secondary Pump/Decoupler Line Configuration .............................................................................10
Loop Bypass Configuration .............................................................................................................11
General Description.............................................................................................................12
Panel Location and Mounting ............................................................................................13
Unpack the CSM Panel........................................................................................................................13
Physical Installation.............................................................................................................................13
Tools Required ................................................................................................................................13
Mounting..........................................................................................................................................13
Removing and Replacing the Cover.....................................................................................................16
Removing the cover of a CSM.........................................................................................................16
Replacing the cover of a CSM .........................................................................................................16
Sensor Installation................................................................................................................................16
Immersion Water Temperature Sensor ............................................................................................16
Outdoor Air Temperature and/or Relative Humidity Sensor ...........................................................18
Field Wiring ..........................................................................................................................19
Power Wiring.......................................................................................................................................19
About the CSM Transformer ...........................................................................................................19
Making the Power Connection to the CSM Transformer.................................................................19
Ethernet Communications to the User Interface and BACnet..............................................................20
L
ONWORKS Communications to Chillers and Remote I/O Modules ...................................................20
Free Topology Networks .................................................................................................................21
Free Topology Restrictions.......................................................................................................................... 22
Bus Topology Networks ..................................................................................................................22
Bus Topology Restrictions........................................................................................................................... 22
Network Cable Termination.............................................................................................................23
Qualified Cables ..............................................................................................................................23
AnaIog/Digital Inputs and Outputs Wiring..........................................................................................23
Onboard I/O Wiring.........................................................................................................................24
Temperature Inputs.................................................................................................................................. 25
0-10 VDC Inputs or 4-20 mA Inputs....................................................................................................... 26
Analog Input Cable Specifications.......................................................................................................... 28
Digital Inputs........................................................................................................................................... 28
Digital Outputs ........................................................................................................................................ 29
Remote I/O Wiring ..........................................................................................................................31
Analog Inputs .......................................................................................................................................... 31
Digital Inputs........................................................................................................................................... 32
Analog Outputs ....................................................................................................................................... 32
Digital Outputs ........................................................................................................................................ 33
Modems ................................................................................................................................39
Internal Modem ...................................................................................................................................39
External Modem ..................................................................................................................................39
Using the Admin Tool to Configure the CSM/Modem........................................................................40
About the Admin Tool .....................................................................................................................40
Configuring the CSM for Your Modem...........................................................................................40
Initial Checkout and Troubleshooting...............................................................................43
Checking the Heartbeat LED ...............................................................................................................43
About the Battery.................................................................................................................................43
Appendix A: Hardwired Chiller Control .............................................................................45
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