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JOHNSON CONTROLS

FORM 150.72-NM3 (1020)

ISSUE DATE 10/05/2020

SECTION 5 – TECHNICAL DATA

ELEMENTARY WIRING DIAGRAMS - YLAA0195

Main Page

Table of Contents4
Section 1 - General Chiller Information & Safety13
- Introduction13
- Warranty13
- Safety and Quality13
  - Standards for Safety and Quality13
  - Responsibility for Safety14
- About this Manual14
- Misuse of Equipment14
Section 2 - Product Description17
- Introduction17
- General System Description17
- High Ambient Kit19
- Building Automation System Interface19
- Power Panel19
- Accessories and Options20
- Unit Components23
Fig. 1 - Unit Components Front23
Fig. 2 - Unit Components Side24
- Control / Power Panel Components25
Fig. 3 - Power Panel Components25
Fig. 4 - Power Panel / Control Components26
- Product Identification Number (Pin)27
- Basic Unit Nomenclature27
Fig. 5 - Refrigerant Flow Diagram33
- Process and Instrumentation Diagram34
Fig. 6 - Process and Instrumentation Diagram34
Section 3 - Handling and Storage35
- Delivery and Storage35
- Inspection35
- Moving the Chiller35
  - Lifting Weights35
Fig. 7 - Unit Rigging/Lifting36
Section 4 - Installation37
- Installation Checklist37
- Handling37
- Inspection37
- Location and Clearances37
- Spring Isolators (Optional)38
- Compressor Mounting38
- Remote Cooler Option38
- Chilled Liquid Piping38
- Pipework Arrangement39
Fig. 8 - Chilled Liquid System39
- Duct Work Connection40
  - General Requirements40
- Wiring40
- Compressor Heaters41
- Relief Valves41
- High Pressure Cutout41
- Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker42
Fig. 9 - Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker42
- User Control Wiring Inputs43
Fig. 10 - Control Wiring Inputs43
- User Control Wiring Outputs44
Fig. 11 - Control Wiring Outputs44
Section 5 - Technical Data45
- Operational Limitations (English)45
- Heat Exchanger Flow, Gpm46
  - Ethylene & Propylene Glycol Correction Factors46
  - Table 3 - Ethylene & Propylene Glycol Correction Factors46
- Physical Data (English)47
- Electrical Information49
- Electrical Notes and Legend53
- Wiring Diagrams56
  - Elementary Wiring Diagrams - YLAA019556
Fig. 12 - Elementary Wiring Diagram, Ylaa0195 Sht 156
Fig. 13 - Elementary Wiring Diagram, Ylaa0195 Sht 258
Fig. 14 - Elementary Wiring Diagram, Ylaa0195 Sht 360
Fig. 15 - Elementary Wiring Diagram, Ylaa0195 Sht 462
Fig. 16 - Elementary Wiring Diagram, Ylaa0195 Sht 564
Fig. 17 - Elementary Wiring Diagram, Ylaa0195 Sht 666
Fig. 18 - Elementary Wiring Diagram, Ylaa0195 Sht 768
Fig. 19 - Elementary Wiring Diagram, Ylaa0195 Sht 870
Fig. 20 - Elementary Wiring Diagram, Ylaa0195 Sht 972
- Connection Wiring Diagrams - YLAA019574
Fig. 21 - Connection Wiring Diagram, Ylaa0195 Sht 174
Fig. 22 - Connection Wiring Diagram, Ylaa0195 Sht 276
Fig. 23 - Connection Wiring Diagram, Ylaa0195 Sht 378
Fig. 24 - Connection Wiring Diagram, Ylaa0195 Sht 480
Fig. 25 - Connection Wiring Diagram, Ylaa0195 Sht 582
Fig. 26 - Connection Wiring Diagram, Ylaa0195 Sht 684
Fig. 27 - Connection Wiring Diagram, Ylaa0195 Sht 786
- Elementary Wiring Diagrams - YLAA0220 - YLAA051588
Fig. 28 - Elementary Wiring Diagram, Ylaa0220 - Ylaa0515, Sht 188
Fig. 29 - Elementary Wiring Diagram, Ylaa0220 - Ylaa0515, Sht 290
Fig. 30 - Elementary Wiring Diagram, Ylaa0220 - Ylaa0515, Sht 392
Fig. 31 - Elementary Wiring Diagram, Ylaa0220 - Ylaa0515, Sht 494
- Connection Diagrams - YLAA0220 - YLAA051596
Fig. 32 - Connection Diagram, Ylaa0220 - Ylaa0515, Sht 196
Fig. 33 - Connection Diagram, Ylaa0220 - Ylaa0515, Sht 298
Fig. 34 - Connection Diagram, Ylaa0220 - Ylaa0515, Sht 3100
Fig. 35 - Connection Diagram, Ylaa0220 - Ylaa0515, Sht 6102
Fig. 36 - Connection Diagram, Ylaa0220 - Ylaa0515, Sht 7104
Fig. 37 - Wiring Diagram, Single Point Wiring Options106
Fig. 38 - Dual Pump Wiring107
Fig. 39 - Wiring108
Fig. 40 - Layout - Power Blocks and Transformers110
- Dimensions (English)111
Fig. 41 - Dimensions (English) Ylaa0195He111
Fig. 42 - Dimensions (English) Ylaa0220He, 0260He, 0285Se, & 320Se112
Fig. 43 - Dimensions (English) Ylaa0300He,Ylaa0360Se, Ylaa0400Se113
Fig. 44 - Dimensions (English) Ylaa0435Se (English)114
Fig. 45 - Dimensions (English) Ylaa0350He (English)115
Fig. 46 - Dimensions (English) Ylaa0390He, Ylaa0485Se116
Fig. 47 - Dimensions (English) Ylaa0440He117
Fig. 48 - Dimensions (English) Ylaa0455He118
Fig. 49 - Dimensions (English) Ylaa0515He119
- Technical Data - Clearances120
Fig. 50 - Unit Clearances - All Models120
- Weight Distribution and Isolator Mounting Positions121
Fig. 51 - Weight Distribution and Isolator Mounting Positions121
- Isoloator Data124
  - One Inch Deflection Spring Isolator Cross-Reference124
Fig. 52 - One Inch Deflection Spring Isolator Cross-Reference124
- One Inch Deflection Spring Isolators Installation Instructions125
Fig. 53 - One Inch Deflection Spring Isolators Installation Instructions125
- Seismic Isolator Cross-Reference126
Fig. 54 - Seismic Isolator Cross-Reference126
- Seismic Isolator Installation and Adjustment INSTRUCTIONS127
Fig. 55 - Seismic Isolator Installation and Adjustment Instructions127
- Duralene Isolator Cross-Reference128
Fig. 56 - Duralene Isolator Cross-Reference128
- Installation of Durulene Vibration Isolators INSTRUCTIONS129
Fig. 57 - Installation of Durulene Vibration Isolators Instructions129
Section 6 - Commissioning131
- Commissioning131
- Preparation - Power off131
- Preparation - Power on132
- Equipment Pre-Startup & Startup Checklist133
  - Pre-Startup133
  - Startup133
- Setpoints Entry List134
- Table 7 - Setpoints Entry List134
- Checking Superheat and Subcooling135
- Leak Checking135
- Unit Operating Sequence136
Section 7 - Unit Controls137
- Introduction137
- Display/Print Keys145
- Schedule/Advance Day Key155
- Table 10 - Cooling Setpoints, Programmable Limits and Defaults156
- Program Key157
  - System Trip Volts158
  - Unit Trip Volts159
- Program Key Limits and Default159
- Table 11 - Program Key Limits and Default159
- Setpoints Quick Reference List160
- Table 12 - Setpoints Quick Reference List160
- Unit" Keys161
  - Options Key161
- Clock165
- Unit Keys Options Programming Quick Reference List166
- Table 13 - Unit Keys Options Programming Quick Reference List166
Section 8 - Unit Operation167
- Capacity Control167
- Suction Pressure Limit Controls167
- Discharge Pressure Limit Controls167
- Leaving Chilled Liquid Control167
- Leaving Chilled Liquid System Lead/Lag and Compressor Sequencing168
- Leaving Chilled Liquid Controloverride to Reduce Cycling168
Fig. 58 - Leaving Water Temperature Control Example168
Fig. 59 - Setpoint Adjust168
- Return Chilled Liquid Control169
- Table 14 - Sample Compressor Staging for Return Water Control169
- Return Chillled Liquid System Lead/Lag and Compressor Sequencing170
- Table 15 - Return Chilled Liquid Control for 4 Compressors (6 Steps)170
- Table 16 - Return Chilled Liquid Control for 4 Compressors (6 Steps)170
- Anti-Recycle Timer171
- Anti-Coincidence Timer171
- Evaporator Pump Control & York171
- Hydro Kit Pump Control171
- Evaporator Heater Control171
- Pumpdown Control171
- Standard Condenser Fan Control171
Fig. 60 - Condenser Fan Locations Wiring Diagrams172
- Only (2, 3, or 4 Fans Per System)173
- Table 17 - Ylaa Standard Condenser Fan Control Using Discharge Pressure173
- Only (5 or 6 Fans Per System)174
- Table 18 - Ylaa Standard Condenser Fan Control Using Discharge Pressure174
- Alarm Status175
- Compressor Run Status175
- Load Limiting175
- Table 19 - Compressor Operation - Load Limiting175
- Bas/Ems Temperature Reset Usinga Voltage or Current Signal176
Section 9 - Service and Troubleshooting177
- Clearing History Buffers177
- Service Mode177
- Service Mode - Outputs177
- Service Mode - Chiller Configuration178
- Service Mode - Analog & Digital Inputs178
- Control Inputs/Outputs179
- Table 20 - I/O Digital Inputs179
- Table 21 - I/O Digital Outputs179
- Table 22 - I/O Analog Inputs179
- Table 23 - I/O Analog Outputs179
- Microboard Layout180
Fig. 61 - Microboard Layout180
- Checking Inputs and Outputs181
Fig. 62 - I/O Board Relay Contact Architecture184
- Optional Printer Installation185
Fig. 63 - Printer to Microboard Electrical Connections185
- Troubleshooting186
- Table 27 - Troubleshooting186
Section 10 - Maintenance189
- Important189
- Compressors189
  - Oil Level Check189
  - Oil Analysis189
- Condenser Fan Motors189
- Condenser Coils189
- Operating Parameters189
- On-Board Battery Back-Up189
- Plate and Frame Heat Exchanger (Evaporator) Heater189
- Microchannel Coil Cleaning190
- Bacnet, Modbus and Yorktalk 2 Communications191
Fig. 64 - Micropanel Connections192
- Table 28 - Minimum, Maximum and Default Values192
- Table 29 - Values Required for Bas Communication193
- Table 30 - Real Time Error Numbers193
- Bacnet and Modbus Communications194
- Communications Data Map Notes194
- Table 31 - Bacnet and Modbus Communications Data Map195
- Yorktalk 2 Communications198
- Temperature Conversion Chart202
- R410Apressure Temperature Chart203

York YLAA0260HE - Page 63

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