York YLUA0248 Series Manuals

Manuals and User Guides for York YLUA0248 Series. We have 1 York YLUA0248 Series manual available for free PDF download: Installation Operation & Maintenance

York YLUA0248 Series Installation Operation & Maintenance (158 pages)

AIR-COOLED SCROLL CONDENSING UNITS

Brand: York | Category: Heat Pump | Size: 8.54 MB

Table of Contents
5
Section 1 - General Equipment Information and Safety

11
- Compressors
  11
- Condenser
  11
- Introduction
  11
- Refrigerant Circuit
  11
- Warranty
  11
- About this Manual
  12
- Safety and Quality
  12
- Misuse of Equipment
  13
- FIGURE 1 - Compressors
  
  15
- Microcomputer Control Center
  16
- Refrigerant Circuit
  16
- Communications
  17
- High Ambient Kit
  17
- Power Panel
  17
- Accessories and Options
  18
- Unit Components
  20
Section 2 - Product Description

15
FIGURE 6 - Process and Instrumentation Diagram

29
FIGURE 7 - Unit Rigging

31
Section 3 - Handling and Storage

31
- Delivery and Storage
  31
- Inspection
  31
- Unit Rigging
  31
Section 4 - Installation

33
- Handling
  33
- Installation Checklist
  33
- Location and Clearances
  33
- Compressor Mounting
  34
- Duct Work Connection
  34
- Pipework Arrangement
  34
- Spring Isolators (Optional)
  34
- Wiring
  34
- Compressor Heaters
  35
- Electrical Wiring
  35
- High Pressure Cutout
  35
- Relief Valves
  35
- Compressor Heaters
  37
- Refrigerant Piping
  37
- Refrigerant Piping Reference
  37
- YCRL Line Sizing Notes
  37
- TABLE 1 - Fitting Equivalent Lengths
  
  38
- TABLE 4 - Refrigerant Line Connections
  
  39
- Filter Driers/ Sight Glasses/ Txvs
  40
- Oil Traps
  40
- Refrigerant Charge
  40
- Refrigerant Line Sizing
  40
- Refrigerant Piping Notes
  41
FIGURE 10 - Control Wiring

43
Section 5 - Technical Data

45
- Operational Limitations (English)
  45
  - TABLE 6 - Voltage Limitations
    
    45
  - TABLE 7 - Physical Data (English)
    
    46
  - Electrical Data
    47
- Physical Data (English)
  46
- TABLE 9 - Voltage Range
  
  47
- TABLE 8 - Micro Panel Power Supply
  
  47
- TABLE 10 - Unit Electrical Data
  
  48
- TABLE 11 - Lug Sizing
  
  49
- FIGURE 11 - Elementary Wiring Diagram
  
  54
- Wiring Diagrams
  54
- Dimensions (English)
  78
- Clearances
  81
Section 6 - Commissioning

89
- Commissioning
  89
- Preparation - Power off
  89
- Preparation - Power on
  90
Section 7 - Unit Controls

95
- Introduction
  95
- Microprocessor Board
  95
- Battery Back-Up
  96
- Display
  96
- Keypad
  96
- Single System Select and Programming Number of Compressors
  96
- Transformer
  96
- Unit Switch
  96
- Status Key
  97
  - TABLE 12 - Status Key Messages Quick Reference List
    
    101
  - TABLE 13 - Operation Data
    
    105
  - Entry Keys
    110
  - Setpoints Keys
    111
- Display/Print Keys
  102
- TABLE 15 - Program Key Limits and Defaults
  
  116
- TABLE 14 - Cooling Setpoints Programmable Limits and Defaults
  
  116
- FIGURE 24 - Setpoints Quick Reference List
  
  117
- Unit Keys
  118
FIGURE 25 - Unit Keys Programming Quick Reference List

123
Section 8 - Unit Operation

125
Section 9 - Service and Troubleshooting

135
- Clearing History Buffers
  135
- Service Mode
  135
- Service Mode - Outputs
  135
- Service Mode - Analog and Digital Inputs
  136
- Service Mode - Condensing Unit Configuration
  136
- Control Inputs/Outputs
  137
- TABLE 24 - I/O Digital Inputs
  
  137
- FIGURE 31 - Microboard Layout
  
  138
- Checking Inputs and Outputs
  139
TABLE 31 - Troubleshooting

144
Section 10 - Maintenance

147
- Compressors
  147
- Condenser Coils
  147
- Condenser Fan Motors
  147
- Important
  147
- On-Board Battery Back-Up
  147
- Operating Parameters
  147
- Overall Unit Inspection
  147
- ISN Control
  148
- TABLE 33 - ISN Transmitted Data
  
  148
- TABLE 32 - ISN Received Data
  
  148
- TABLE 34 - ISN Operational and Fault Codes
  
  150
- Bacnet and Modbus Data Communication
  151
TABLE 35 - Minimum, Maximum and Default Values

152
TABLE 36 - Real Time Error Numbers

152
TABLE 37 - Serial Communication Analog Value Data

153
TABLE 38 - Serial Communication Binary Value Data

153
TABLE 39 - Serial Communication Analog Input Data

153
TABLE 40 - Serial Communication Binary Input Data

155

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York YLUA0248 Series Manuals

York YLUA0248 Series Installation Operation & Maintenance (158 pages)

Table of Contents

Section 1 - General Equipment Information and Safety

FIGURE 1 - Compressors

Section 2 - Product Description

FIGURE 2 - Unit Components Front

FIGURE 3 - Power Panel Components

FIGURE 4 - Power Panel / Control Components

FIGURE 5 - Refrigerant Flow Diagram

FIGURE 6 - Process and Instrumentation Diagram

FIGURE 7 - Unit Rigging

Section 3 - Handling and Storage

Section 4 - Installation

TABLE 2 - Refrigerant Piping Charges

TABLE 3 - Miscellaneous Liquid Line Pressure Drops

TABLE 5 - Refrigerant Line Pressure Drops (English)

FIGURE 8 - Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch

FIGURE 9 - Discharge Air Sensor Field Wiring

TABLE 1 - Fitting Equivalent Lengths

TABLE 4 - Refrigerant Line Connections

FIGURE 10 - Control Wiring

Section 5 - Technical Data

TABLE 6 - Voltage Limitations

TABLE 7 - Physical Data (English)

TABLE 9 - Voltage Range

TABLE 8 - Micro Panel Power Supply

TABLE 10 - Unit Electrical Data

TABLE 11 - Lug Sizing

FIGURE 11 - Elementary Wiring Diagram

FIGURE 12 - Elementary Wiring Diagram

FIGURE 13 - Elementary Wiring Diagram

FIGURE 14 - Elementary Wiring Diagram

FIGURE 15 - Elementary Wiring Diagram

FIGURE 16 - Power Options Connection Diagram

FIGURE 17 - Power Panel

FIGURE 18 - Single Point & Dual Point Wiring

FIGURE 19 - Wiring

FIGURE 20 - Micro Panel Connections

FIGURE 21 - Elementary Diagram

FIGURE 22 - Elementary Diagram

FIGURE 23 - Unit Clearances - All Models

Section 6 - Commissioning

Section 7 - Unit Controls

TABLE 12 - Status Key Messages Quick Reference List

TABLE 13 - Operation Data

TABLE 15 - Program Key Limits and Defaults

TABLE 14 - Cooling Setpoints Programmable Limits and Defaults

FIGURE 24 - Setpoints Quick Reference List

FIGURE 25 - Unit Keys Programming Quick Reference List

Section 8 - Unit Operation

FIGURE 26 - Discharge Air Temperature Control

TABLE 16 - Discharge Air Temperature Control for 5 and 6 Compressors (7 and 8 Steps)

TABLE 17 - Discharge Air Temperature Control for 4 Compressors (6 Steps)

FIGURE 27 - Suction Pressure Control

FIGURE 28 - YLUA0248 - YLUA0298 Fan Location (Typical)

TABLE 20 - YLUA0248 - YLUA0298 Low Ambient Condenser Fan Control - Discharge Pressure Control

FIGURE 29 - YLUA0308 - YLUA0408 Fan Location

FIGURE 30 - YLUA0468 - YLUA0498 Fan Location

TABLE 23 - Compressor Operation - Load Limiting

TABLE 22 - YLUA0468 - YLUA0498 Condenser Fan Control

TABLE 19 - YLUA0248 - YLUA0298 Condenser Fan Control Using Discharge Pressure Only

TABLE 18 - YLUA0248 - YLUA0298 Condenser Fan Control Using Outdoor Ambient Temperature and Discharge Pressure

TABLE 21 - YLUA0308 - YLUA0408 Condenser Fan Control

Section 9 - Service and Troubleshooting

TABLE 25 - I/O Digital Outputs

TABLE 28 - Outdoor Air Sensor Temperature/Voltage/ Correlation

TABLE 29 - Discharge Air Temp. Sensor Temperature/Voltage/Resistance Correlation

TABLE 30 - Pressure Transducers

FIGURE 32 - I/O Board Relay Contact Architecture

FIGURE 33 - Printer to Microboard Electrical Connections

TABLE 26 - I/O Analog Inputs

TABLE 27 - I/O Analog Outputs

TABLE 24 - I/O Digital Inputs

FIGURE 31 - Microboard Layout

TABLE 31 - Troubleshooting

Section 10 - Maintenance

TABLE 33 - ISN Transmitted Data

TABLE 32 - ISN Received Data

TABLE 34 - ISN Operational and Fault Codes