Carrier AquaEdge 19XR series

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Fig. 71 — Typical Medium-Voltage Variable Frequency Drive (VFD) Wiring Schematic (cont)

a19-2066

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Safety Considerations1
Table of Contents2
System Components5
Introduction5
Abbreviations and Explanations5
Chiller Familiarization5
Chiller Information Nameplate5
Cooler7
Condenser7
Motor-Compressor7
Control Panel7
Economizer (Optional)7
Factory-Mounted Starter or Variable7
- Frequency Drive (Optional)7
Storage Vessel (Optional)7
Refrigeration Cycle10
Motor and Oil Cooling Cycle11
Vfd Cooling Cycle12
Lubrication Cycle12
Summary12
Details12
Bearings14
Oil Reclaim System14
- Primary Oil Recovery Mode14
- Secondary Oil Recovery Method15
Optional15
Starting Equipment15
Unit-Mounted Solid-State Starter15
Unit-Mounted Wye-Delta Starter16
- (Optional)16
Unit-Mounted VFD (Optional)16
Controls17
Definitions17
- Analog Signal17
- Discrete Signal17
General17
PIC II System Components17
- International Chiller Visual18
- Controller (ICVC)18
- Integrated Starter Module (Ism)18
- Chiller Control Module (CCM)18
- Oil Heater Contactor (1C)18
- Oil Pump Contactor (2C)18
- Hot Gas Bypass Contactor Relay (3C)19
- Control Transformers (T1, T2)19
- Chiller Control Module (CCM19
- Sensors21
ICVC Operation and Menus21
- Modes21
- Alarms and Alerts22
- ICVC Menu Items22
- Basic ICVC Operations22
- To View Status23
- Override Operations23
- Time Schedule Operation27
- To View and Change Set Points28
- Service Operation28
- Alarms and Alerts29
PIC II System Functions43
- Alarms and Alerts43
- ICVC Menu Items43
- Basic ICVC Operations43
- Flow Detection43
- Capacity Control44
- Fixed Speed Applications44
- Variable Speed (Vfd) Applications44
- Ecw Control Option45
- Control Point Deadband45
- Proportional Bands45
- Diffuser Control46
- Demand Limiting47
- Chiller Timers and Starts Counter47
- Occupancy Schedule47
Safety Controls48
Pump and Fan Control48
Shunt Trip (Option)48
Function Loss Trip48
Default Screen Freeze51
Ramp Loading52
Rampdown52
Capacity Override52
High Discharge Temperature Control52
Compressor Bearing Temperature52
Oil Sump Temperature and Pump Control52
Oil Cooler54
Remote Start/Stop Controls54
Spare Safety and Spare Temperature Inputs54
Alarm (Trip) Output Contacts54
Refrigerant Leak Detector54
Kilowatt Output54
Remote Reset of Alarms54
Condenser Pump Control54
Condenser Freeze Prevention55
Evaporator Freeze Protection55
Tower Fan Relay Low and High55
Auto. Restart after Power Failure55
Fast Power Source Transfers56
Water/Brine Reset56
- Reset Type56
Demand Limit Control Option56
Surge Prevention - Constant Flow and56
- Variable Primary Flow (VPF)56
Hot Gas Bypass (Optional) Algorithm56
Surge Protection (Fixed Speed Chiller)57
Surge Prevention Algorithm with VFD57
Surge Protection (VFD Chiller)58
VFD Start-Up Speed Control58
Head Pressure Reference Output58
Lead/Lag Control59
- Common Point Sensor Usage and59
- Chiller Communication Wiring59
- Lead/Lag Operation59
- Faulted Chiller Operation61
- Load Balancing61
- Auto. Restart after Power Failure61
Ice Build Control61
- Ice Build Initiation62
- Start-Up/Recycle Operation62
- Temperature Control During Ice Build62
- Termination of Ice Build62
- Return to Non-Ice Build Operations62
Attach to Network Device Control62
- Attaching to Other Ccn Modules63
Service Operation63
- To Access the Service Screens63
- To Log out of Network Device63
- Time Broadcast Enable63
- Holiday Scheduling64
- Daylight Saving Time Configuration64
Controls64
Start-Up/Shutdown/Recycle64
- Sequence64
Local Start-Up64
Shutdown Sequence66
Automatic Soft Stop Amps Threshold66
Chilled Water Recycle Mode66
Safety Shutdown67
Before Initial Start-Up67
Job Data Required67
Equipment Required67
Using the Optional Storage Tank67
- And Pumpout System67
Remove Shipping Packaging67
Open Oil Circuit Valves67
Tighten All Gasketed Joints and67
- Guide Vane Shaft Packing67
Leak Test Chiller68
Standing Vacuum Test71
Chiller Dehydration71
Inspect Water Piping71
Check Optional Pumpout Compressor72
- Water Piping72
Check Relief Valves72
Inspect Wiring72
Carrier Comfort Network72
- Interface72
Check Starter73
- Mechanical Starter73
- BENSHAW, INC. Redistart MX373
- Vfd Starter73
Oil Charge73
Power up the Controls and73
- Check the Oil Heater73
- Software Version73
Software Configuration74
Input the Design Set Points74
Input the Local Occupied Schedule74
- (Occpc01S)74
Input Service Configurations74
- Password74
- Input Time and Date74
- Change ICVC Configuration if Necessary74
- To Change the Password74
- To Change the ICVC Display from English to Metric Units74
VFD Field Setup and Verification75
- Label Locations76
- Drive Protection and Other Incoming Wiring77
- VFD CONTROL VERIFICATION (Non-Running)78
- VFD CONTROL VERIFICATION (Running)78
- Hand Calculate Surge Prevention79
- Configurations80
- Configure Diffuser Control if81
- Modify Equipment Configuration81
Perform a Control Test82
- Guide Vane Actuator Calibration83
- Cooler and Condenser Pressure Trans83
- Ducer and Waterside Flow Device83
High Altitude Locations84
Initial Start-Up86
Initial Start-Up87
To Stop the Chiller88
- To Read Refrigerant Pressures90
- Chillers with Isolation Valves91
Procedures93
Leak Rate94
Checking Guide Vane Linkage . . . . . . . . . . . . . . . . . . 94 APPENDIX A - ICVC PARAMETER INDEX . .179-18595
Trim Refrigerant Charge95
Oil Specification96
Maintenance97
Inspect the Starting Equipment98
Troubleshooting Guide99
Troubleshooting Guide100
- Voltage Drop104
- Voltage Drop105
- Voltage Drop108
- Voltage Drop109
- Voltage Drop110
- Voltage Drop112
- Voltage Drop114
- Voltage Drop115
Checking Pressure Transducers116
Control Algorithms Checkout Procedure117
Inputs119
Replacing Defective Processor Modules120
End of Life and Equipment Disposal121
- Appendix B — Lead/Lag Wiring186
- Appendix B — Lead/Lag Wiring187
- And Log Sheets188
  - Appendix C - Maintenance Summary188
  - Appendix D - Bacnet Communication191
- Option191
- Option197
Index198

Carrier AquaEdge 19XR series - Page 177

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