Known Problems .......................................................................................................................... 3
Automatic Speed Control ............................................................................................................. 6
Manual Speed Control .................................................................................................................. 8
Programming ................................................................................................................................ 8
Micro Board Changes .................................................................................................................. 9
Standby Lubrication ...................................................................................................................... 9
SAFETY SHUTDOWNS ............................................................................................................ 10
High Oil Flow ............................................................................................................................. 10
Oil Pump Drive Status LED ....................................................................................................... 11
VSOP Drive Okay Relay ........................................................................................................... 11
Auto-Resettable Shutdowns ....................................................................................................... 11
TROUBLESHOOTING GUIDE .............................................................................................. 13
REMOTE KEYPAD UNIT ....................................................................................................... 17
Operating Instructions ................................................................................................................ 17
SERVICE PARTS LIST ............................................................................................................. 17
Objective .................................................................................................................................... 18
SAFETY SHUTDOWNS ............................................................................................................ 19
Diagnostic Software ................................................................................................................... 19
VSOP Drive Okay Relay ........................................................................................................... 19
Auto Re-settable Shutdowns ...................................................................................................... 19
TROUBLESHOOTING ............................................................................................................ 20
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TABLE OF CONTENTS
MOD D CHILLERS
MOD E CHILLERS
YORK INTERNATIONAL