YORK INTERNATIONAL
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TABLE OF CONTENTS
VSD OIL PUMP GENERAL INFORMATION .......................................................................3
VSD Oil Pump Style Variations ................................................................................................... 3
VSD Oil Pump Drive Overview .................................................................................................. 3
Known Problems .......................................................................................................................... 3
VARIABLE SPEED OIL PUMP DRIVE OPERATION MODEL D CHILLER ...............4
Microcomputer Control Center Operation ................................................................................... 4
Automatic Speed Control ............................................................................................................. 6
Manual Speed Control .................................................................................................................. 8
Programming ................................................................................................................................ 8
Micro Board Changes .................................................................................................................. 9
Standby Lubrication ...................................................................................................................... 9
SAFETY SHUTDOWNS ............................................................................................................ 1 0
High Oil Flow ............................................................................................................................. 10
Oil Pump Operation After Power Failures ................................................................................. 10
Diagnostic Software - Digital Outputs ....................................................................................... 10
FAULT INDICATIONS FROM THE VSOP DRIVE ............................................................ 11
Oil Pump Drive Status LED ....................................................................................................... 11
VSOP Drive Okay Relay ........................................................................................................... 11
Auto-Resettable Shutdowns ....................................................................................................... 11
Non-Auto-Resettable Shutdowns ............................................................................................... 12
TROUBLESHOOTING GUIDE .............................................................................................. 1 3
DRIVE REPLACEMENT INSTRUCTIONS ........................................................................ 1 4
MOST FREQUENTLY ASKED QUESTIONS ..................................................................... 1 6
REMOTE KEYPAD UNIT ....................................................................................................... 1 7
Operating Instructions ................................................................................................................ 17
SERVICE PARTS LIST ............................................................................................................. 1 7
MOD D CHILLERS
VSD OIL PUMP GENERAL INFORMATION .................................................................... 1 8
Objective .................................................................................................................................... 18
VSD Oil Pump Drive Overview ................................................................................................ 18
SAFETY SHUTDOWNS ............................................................................................................ 1 9
Pressure Setpoint Not Achieved The Safety Shutdown OIL – VARIABLE SPEED PUMP –
PRESSURE SETPOINT NOT ACHIEVED has replaced the message for HIGH OIL FLOW .. 19
Diagnostic Software ................................................................................................................... 19
VSOP Drive Okay Relay ........................................................................................................... 19
Auto Re-settable Shutdowns ...................................................................................................... 19
Non Auto Re-settable Shutdowns .............................................................................................. 19
TROUBLESHOOTING ............................................................................................................ 2 0
MOD E CHILLERS
