Johnson Controls YORK Tempo YLAA Series

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FORM 150.72-NM1 (1020)

105

JOHNSON CONTROLS

I2, I6

I3, I7

I4, I8

I1, I5

CONTROL PANEL END

YLAA

Model

AVM LOCATIONS

I1 I2 I3 I4 I5 I6 I7 I8 A B

YLAA0156HE 7.6 69 72.5 63.6 7.6 69 72.5 63.6 1.36 85.5

YLAA0170SE 7.6 69 72.5 63.6 7.6 69 72.5 63.6 1.36 85.5

YLAA0175HE 7.6 69 72.5 63.6 7.6 69 72.5 63.6 1.36 85.5

ISOLATOR LOCATIONS (CONT’D)

NOTE: All dimensions in inches.

Main Page

Table of Contents5
Section 1 - General Chiller Information and Safety15
- Introduction15
- Warranty15
- Safety and Quality15
  - Standards for Safety and Quality15
  - Responsibility for Safety16
- About this Manual16
- Misuse of Equipment16
Section 2 - Product Description19
- Introduction19
- General System Description19
- Communications21
- High Ambient Kit21
- Building Automation System Interface21
- Power Panel21
- Accessories and Options22
- Unit Components25
Fig. 1 - Unit Components Front25
Fig. 2 - Unit Components Side26
- Control / Power Panel Components27
Fig. 3 - Power Panel Components27
Fig. 4 - Power Panel / Control Components28
- Product Identification Number (Pin)29
- Basic Unit Nomenclature29
Fig. 5 - Refrigerant Flow Diagram34
- Process and Instrumentation Diagram35
Fig. 6 - Process and Instrumentation Diagram35
Section 3 - Handling and Storage37
- Delivery and Storage37
- Inspection37
- Moving the Chiller37
  - Lifting Weights37
  - Rigging Instructions38
Fig. 7 - Unit Rigging/Lifting38
Section 4 - Installation39
- Installation Checklist39
- Handling39
- Inspection39
- Location and Clearances39
- Spring Isolators (Optional)40
- Compressor Mounting40
- Remote Cooler Option40
- Chilled Liquid Piping40
- Pipework Arrangement41
Fig. 8 - Chilled Liquid System41
- Duct Work Connection42
  - General Requirements42
- Wiring42
- Compressor Heaters43
- Relief Valves43
- High Pressure Cutout43
- Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker44
Fig. 9 - Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker44
- User Control Wiring Inputs45
Fig. 10 - Control Wiring Inputs45
- User Control Wiring Outputs46
Fig. 11 - Control Wiring Outputs46
Section 5 - Technical Data47
- Operational Limitations (English)47
- Heat Exchanger Flow, Gpm48
  - Ethylene & Propylene Glycol Correction Factors48
  - Table 3 - Ethylene and Propylene Glycol Correction Factors48
- Physical Data (English)50
- Table 4 - Physical Data (English)50
- Electrical Data52
- Table 5 - Micro Panel Power Supply52
- Table 6 - Voltage Range52
- Electrical Notes53
- Electrical Data W/O Pumps54
  - Wiring Lugs58
- Electrical Data W/ Pumps60
- Electrical Notes and Legend68
- Wiring Diagrams72
  - Elementary Wiring Diagrams72
Fig. 12 - Elementary Wiring Diagram, Sht 172
Fig. 13 - Elementary Wiring Diagram, Sht 274
Fig. 14 - Elementary Wiring Diagram, Sht 376
Fig. 15 - Elementary Wiring Diagram, Sht 478
- Connection Diagrams80
Fig. 16 - Connection Diagram, Sht 180
Fig. 17 - Connection Diagram, Sht 282
Fig. 18 - Connection Diagram, Sht 384
Fig. 19 - Connection Diagram, Sht 686
Fig. 20 - Connection Diagram, Sht 788
Fig. 21 - Dual Pump Wiring90
Fig. 22 - Wiring92
Fig. 23 - Wiring Diagram, Single Point Wiring Options94
Fig. 24 - Layout - Power Blocks and Transformers95
- Dimensions (English)96
- Technical Data - Clearances101
Fig. 25 - Unit Clearances - All Models101
- Weight Distribution and Isolator Mounting Positions102
- ISOLATOR INFORMATION (for Units Shipped on or after June 15, 2008)106
- ISOLATOR INFORMATION (for Units Shipped before June 15, 2008)112
Section 6 - Commissioning119
- Preparation - Power off119
- Preparation - Power on120
- Equipment Pre-Startup and Startup Checklist121
  - Pre-Startup121
  - Startup121
- Setpoints Entry List122
- Table 7 - Setpoints Entry List122
- Checking Superheat and Subcooling123
- Leak Checking123
- Unit Operating Sequence124
Section 7 - Unit Controls125
- Introduction125
- Status Key127
- Display/Print Keys133
- Entry Keys141
  - Up and down Arrow Keys141
  - Enter/Adv Key141
- Setpoints Keys142
- Program Key145
- Program Key Limits and Default147
- Table 11 - Program Key Limits and Default147
- Setpoints Quick Reference List148
- Table 12 - Setpoints Quick Reference List148
- Unit Keys149
  - Options Key149
- Clock153
- Unit Keys Options Programming Quick Reference List154
- Table 13 - Unit Keys Options Programming Quick Reference List154
Section 8 - Unit Operation155
- Capacity Control155
- Suction Pressure Limit Controls155
- Discharge Pressure Limit Controls155
- Leaving Chilled Liquid Control155
Fig. 26 - Leaving Water Temperaturecontrol Example155
- Leaving Chilled Liquid Controloverride to Reduce Cycling156
- Leaving Chilled Liquid System Lead/Lag and Compressor Sequencing156
Fig. 27 - Setpoint Adjust156
- Return Chilled Liquid Control157
- Table 14 - Sample Compressor Staging for Return Water Control157
- Return Chillled Liquid System Lead/Lag and Compressor Sequencing158
- Table 15 - Return Chilled Liquid Control for 4 Compressors (6 Steps)158
- Table 16 - Return Chilled Liquid Control for 4 Compressors (6 Steps)158
- Anti-Recycle Timer159
- Anti-Coincidence Timer159
- Evaporator Pump Control and York Hydro Kit Pump Control159
- Evaporator Heater Control159
- Pumpdown Control159
- Standard Condenser Fan Control159
Fig. 28 - Condenser Fan Locationswiring Diagrams160
- Table 17 - Ylaa Standard Condenser Fan Control Using Discharge161
- Table 18 - Ylaa Standard Condenser Fan Control Using Discharge162
- Alarm Status163
- Compressor Run Status163
- Load Limiting163
- Table 19 - Compressor Operation - Load Limiting163
- Bas/Ems Temperature Reset Usinga Voltage or Current Signal164
Section 9 - Service and Troubleshooting165
- Clearing History Buffers165
- Service Mode165
- Service Mode - Outputs165
- Service Mode - Chiller Configuration166
- Service Mode - Analog and Digital Inputs166
- Control Inputs/Outputs167
- Table 20 - I/O Digital Inputs167
- Table 21 - I/O Digital Outputs167
- Table 22 - I/O Analog Inputs167
- Table 23 - I/O Analog Outputs167
- Microboard Layout168
Fig. 29 - Microboard Layout168
- Checking Inputs and Outputs169
Fig. 30 - I/O Board Relay Contact Architecture172
- Optional Printer Installation173
Fig. 31 - Printer to Microboard Electrical Connections173
- Troubleshooting174
- Table 27 - Troubleshooting174
Section 10 - Maintenance177
- Important177
- Compressors177
  - Oil Level Check177
  - Oil Analysis177
- Condenser Fan Motors177
- Condenser Coils177
- Operating Parameters177
- On-Board Battery Back-Up177
- Evaporator Heater177
- Bacnet, Modbus and Yorktalk 2 Communications178
Fig. 32 - Micro Panel Connections179
- Table 28 - Minimum, Maximum and Default Values179
- Table 29 - Values Required for Bas Communication180
- Table 30 - Real Time Error Numbers180
- Bacnet and Modbus Communications181
- Communications Data Map Notes181
- Table 31 - Bacnet and Modbus Communications Data Map182
- Yorktalk 2 Communications185
- Table 32 - Yorktalk 2 Communications Data Map186
- Temperature Conversion Chart189
- R410A Pressure Temperature Chart190

Johnson Controls YORK Tempo YLAA Series - Page 105

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