
4
CONTENTS (cont)
Page
• OPTIONAL THERMAL DISPERSION FLOW
SWITCH CALIBRATION
Check Optional Pumpout System
Controls and Compressor
. . . . . . . . . . . . . . . . . . . . . 84
High Altitude Locations
. . . . . . . . . . . . . . . . . . . . . . . . . 84
Charge Refrigerant Into Chiller
. . . . . . . . . . . . . . . . . . 84
• CHILLER EQUALIZATION WITHOUT A
PUMPOUT UNIT
• CHILLER EQUALIZATION WITH
PUMPOUT UNIT
• TRIMMING REFRIGERANT CHARGE
INITIAL START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . 86,87
Preparation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Dry Run to Test Start-Up Sequence
. . . . . . . . . . . . . 86
Check Motor Rotation
. . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Check Oil Pressure and Compressor Stop
. . . . . . 86
To Prevent Accidental Start-Up
. . . . . . . . . . . . . . . . . . 87
Check Chiller Operating Condition
. . . . . . . . . . . . . . 87
Instruct the Customer Operator
. . . . . . . . . . . . . . . . . 87
• COOLER-CONDENSER
• OPTIONAL PUMPOUT STORAGE TANK AND
PUMPOUT SYSTEM
• MOTOR COMPRESSOR ASSEMBLY
• MOTOR COMPRESSOR LUBRICATION
SYSTEM
• CONTROL SYSTEM
• AUXILIARY EQUIPMENT
• DESCRIBE CHILLER CYCLES
• REVIEW MAINTENANCE
• SAFETY DEVICES AND PROCEDURES
• CHECK OPERATOR KNOWLEDGE
• REVIEW THE START-UP, OPERATION, AND
MAINTENANCE MANUAL
OPERATING INSTRUCTIONS
. . . . . . . . . . . . . . . . . 87,88
Operator Duties
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Prepare the Chiller for Start-Up
. . . . . . . . . . . . . . . . . . 87
To Start the Chiller
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Check the Running System
. . . . . . . . . . . . . . . . . . . . . 87
To Stop the Chiller
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
After Limited Shutdown
. . . . . . . . . . . . . . . . . . . . . . . . . 88
Preparation for Extended Shutdown
. . . . . . . . . . . . . 88
After Extended Shutdown
. . . . . . . . . . . . . . . . . . . . . . . 88
Cold Weather Operation
. . . . . . . . . . . . . . . . . . . . . . . . . 88
Manual Guide Vane Operation
. . . . . . . . . . . . . . . . . . . 88
Refrigeration Log
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
PUMPOUT AND REFRIGERANT TRANSFER
PROCEDURES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88-93
Preparation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Operating the Optional Pumpout Unit
. . . . . . . . . . . 90
• TO READ REFRIGERANT PRESSURES
• POSITIVE PRESSURE CHILLERS WITH STORAGE
TANKS
• CHILLERS WITH ISOLATION VALVES
• DISTILLING THE REFRIGERANT
GENERAL MAINTENANCE
. . . . . . . . . . . . . . . . . . . 93-95
Refrigerant Properties
. . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Adding Refrigerant
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Adjusting the Refrigerant Charge
. . . . . . . . . . . . . . . 93
Refrigerant Leak Testing
. . . . . . . . . . . . . . . . . . . . . . . . 93
Leak Rate
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Test After Service, Repair, or Major Leak
. . . . . . . . 94
• TESTING WITH REFRIGERANT TRACER
• TESTING WITHOUT REFRIGERANT TRACER
• TO PRESSURIZE WITH DRY NITROGEN
Repair the Leak, Retest, and Apply
Standing Vacuum Test
. . . . . . . . . . . . . . . . . . . . . . . . 94
Checking Guide Vane Linkage
. . . . . . . . . . . . . . . . . . 94
Trim Refrigerant Charge
. . . . . . . . . . . . . . . . . . . . . . . . . 95
Page
WEEKLY MAINTENANCE
. . . . . . . . . . . . . . . . . . . . . . . . 95
Check the Lubrication System
. . . . . . . . . . . . . . . . . . 95
SCHEDULED MAINTENANCE
. . . . . . . . . . . . . . . . 95-98
Service Ontime
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Inspect the Control Panel
. . . . . . . . . . . . . . . . . . . . . . . 95
Check Safety and Operating Controls
Monthly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Changing Oil Filter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Oil Specification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Oil Changes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
• TO CHANGE THE OIL
Refrigerant Filter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Oil Reclaim Filter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Inspect Refrigerant Float System
. . . . . . . . . . . . . . . . 96
• ECONOMIZER FLOAT SYSTEM
• ECONOMIZER DAMPER VALVE
Inspect Relief Valves and Piping
. . . . . . . . . . . . . . . . 96
Compressor Bearing and Gear
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Inspect the Heat Exchanger Tubes
and Flow Devices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
• COOLER AND OPTIONAL FLOW DEVICES
• CONDENSER AND OPTIONAL FLOW DEVICES
Water Leaks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Water Treatment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Inspect the Starting Equipment
. . . . . . . . . . . . . . . . . 98
Recalibrate Pressure Transducers
. . . . . . . . . . . . . . 98
Optional Pumpout System Maintenance
. . . . . . . . . 98
• OPTIONAL PUMPOUT COMPRESSOR OIL
CHARGE
• OPTIONAL PUMPOUT SAFETY CONTROL
SETTINGS
Ordering Replacement Chiller Parts
. . . . . . . . . . . . . 98
TROUBLESHOOTING GUIDE
. . . . . . . . . . . . . . . . 99-178
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Checking Display Messages
. . . . . . . . . . . . . . . . . . . . 99
Checking Temperature Sensors
. . . . . . . . . . . . . . . . . 99
• RESISTANCE CHECK
• VOLTAGE DROP
• CHECK SENSOR ACCURACY
• DUAL TEMPERATURE SENSORS
Checking Pressure Transducers
. . . . . . . . . . . . . . . 116
• TRANSDUCER REPLACEMENT
• COOLER AND CONDENSER PRESSURE TRANS-
DUCER AND OPTIONAL WATERSIDE FLOW
DEVICE CALIBRATION
Control Algorithms Checkout Procedure
. . . . . . . 117
Control Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Control Modules
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
• RED LED (Labeled as STAT)
• GREEN LED (Labeled as COM)
Notes on Module Operation
. . . . . . . . . . . . . . . . . . . . 117
Chiller Control Module (CCM)
. . . . . . . . . . . . . . . . . . 117
• INPUTS
• OUTPUTS
Integrated Starter Module
. . . . . . . . . . . . . . . . . . . . . . 117
• INPUTS
• OUTPUTS
Replacing Defective Processor Modules
. . . . . . . 120
• INSTALLATION
Solid-State Starters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
• TESTING SILICON CONTROL RECTIFIERS IN
BENSHAW, INC. SOLID-STATE STARTERS
• SCR REMOVAL/INSTALLATION
End of Life and Equipment Disposal
. . . . . . . . . . . 121
Physical Data
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
APPENDIX A — ICVC PARAMETER INDEX
Summary of Contents for AquaEdge 19XR series
Page 69: ...69 Fig 33 19XR Leak Test Procedures a19 1625 ...
Page 154: ...154 Fig 64 Benshaw Inc Wye Delta Unit Mounted Starter Wiring Schematic Low Voltage a19 1873 ...
Page 161: ...161 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v ...
Page 162: ...162 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont ...
Page 186: ...186 APPENDIX B LEAD LAG WIRING 19XR Lead Lag Schematic Series Cooler Flow a19 1655 ...
Page 187: ...187 APPENDIX B LEAD LAG WIRING cont 19XR Lead Lag Schematic Parallel Cooler Flow a19 1717 ...