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York YCAL0052 - User Manual

York YCAL0052
230 pages
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LD10950
R-410A
035-21456-000
DUAL CIRCUIT
SINGLE CIRCUIT
YCAL0019, 0022, 0028, 0033, 0043, 0046, 0052, 0056, 0066
AIR-COOLED SCROLL CHILLERS
STYLE E (60 HZ)
15-65 TON
Products are produced at a
f a c ilit y wh o s e qu a l i t y -
management systems are
ISO9001 certified.
Issue Date:
April 28, 2017
AIR-COOLED LIQUID CHILLERS
HERMETIC SCROLL
INSTALLATION, OPERATION, MAINTENANCE
Supersedes 150.67-NM1 (1216) Form 150.67-NM1 (417)

Table of Contents

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Summary

SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY

Safety Guidelines

Covers general safety, responsibilities, hazards, and emergency procedures.

Standards For Safety

Lists applicable safety standards and codes.

Emergency Shutdown

Explains how to use the unit switch for emergency shutdown.

SECTION 2 - PRODUCT DESCRIPTION

GENERAL SYSTEM DESCRIPTION

Describes the main components of the chiller system.

MILLENNIUM CONTROL CENTER

Overview of the microprocessor control center.

COMMUNICATIONS

Details native and optional communication capabilities.

ACCESSORIES AND OPTIONS

Building Automation System Interface

Interface for connecting to BAS.

SECTION 3 - HANDLING AND STORAGE

MOVING THE CHILLER

Guidance on lifting and moving the chiller unit.

SECTION 4 - INSTALLATION

INSTALLATION CHECKLIST

Checklist of essential items before placing units in operation.

LOCATION AND CLEARANCES

Guidelines for selecting unit location and required clearances.

CHILLED LIQUID PIPING

Guidelines for connecting the chilled liquid piping system.

WIRING

Information on field wiring and connections.

Field Wiring

Details power wiring requirements and recommendations.

SECTION 5 - TECHNICAL DATA

OPERATIONAL LIMITATIONS (ENGLISH)

English units for operational limits.

OPERATIONAL LIMITATIONS (SI)

SI units for operational limits.

Voltage Limitations

Absolute voltage limitations in SI units.

ELECTRICAL DATA (ENGLISH)

Tables detailing electrical data for various models and configurations.

ELECTRICAL DATA

Micro panel power supply and voltage range information.

ELECTRICAL NOTES AND LEGEND

Explains electrical notes, legends, and NEC compliance.

CONTROL WIRING DIAGRAMS

Diagrams illustrating control wiring for different configurations.

POWER OPTIONS CONNECTION DIAGRAMS

Diagrams for power wiring connections of various options.

CONNECTION WIRING DIAGRAMS

Diagrams illustrating connection wiring for various configurations.

TECHNICAL DATA - CLEARANCES

Recommended clearances for unit installation.

FIGURE 30 - UNIT CLEARANCES - ALL MODELS

Diagram showing recommended clearances for all models.

ISOLATORS

Information on vibration isolation for chillers.

SECTION 6 - COMMISSIONING

COMMISSIONING

Procedures for commissioning the chiller unit.

PREPARATION - POWER OFF

Initial checks to perform with the unit power OFF.

Refrigerant Charge

Procedures for checking and charging refrigerant.

PREPARATION - POWER ON

Checks to perform with the unit power ON.

Water System

Verifying correct installation and commissioning of the chilled liquid system.

Flow Switch

Verifying correct fitting and wiring of the chilled water flow switch.

EQUIPMENT START-UP CHECKLIST

Checking The System Prior To Initial Start (No Power)

Pre-power checks on the unit and its systems.

Program;verify the Cooling Setpoints, Program Setpoints, and Unit Options

Verifying and programming control setpoints and options.

CHECKING SUPERHEAT AND SUBCOOLING

Procedures for checking and calculating superheat and subcooling.

LEAK CHECKING

Procedures for leak checking the system.

SECTION 7 - UNIT CONTROLS

IPU II AND I;O BOARDS

Description of the integrated control boards.

Keypad Commands

How to use the keypad for programming and accessing features.

STATUS KEY

Using the STATUS key to check chiller operating status.

Unit Status

Explains different types of status messages displayed.

Fault Status Messages

Explains fault messages related to safeties.

System Safeties

Details faults that shut down individual systems.

Unit Safeties

Details faults that shut down all running compressors.

DISPLAY;PRINT KEYS

Oper Data Key

Accessing and scrolling through operating data screens.

Print Key

Obtaining real-time or historical data printouts.

SETPOINTS KEYS

Cooling Setpoints

Programming the cooling setpoint and range.

Leaving Chilled Liquid Control

Control based on leaving chilled liquid temperature.

Return Chilled Liquid Control

Control based on return chilled liquid temperature.

PROGRAM KEY

SECTION 8 - UNIT OPERATION

CAPACITY CONTROL

How the unit manages cooling capacity.

LEAVING CHILLED LIQUID CONTROL

Regulation of chilled liquid temperature based on setpoint.

LOAD LIMITING

SECTION 9 - SERVICE AND TROUBLESHOOTING

SERVICE MODE

Mode for enabling/disabling outputs, changing parameters, and viewing inputs.

TABLE 37 - TROUBLESHOOTING

Summary

SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY

Safety Guidelines

Covers general safety, responsibilities, hazards, and emergency procedures.

Standards For Safety

Lists applicable safety standards and codes.

Emergency Shutdown

Explains how to use the unit switch for emergency shutdown.

SECTION 2 - PRODUCT DESCRIPTION

GENERAL SYSTEM DESCRIPTION

Describes the main components of the chiller system.

MILLENNIUM CONTROL CENTER

Overview of the microprocessor control center.

COMMUNICATIONS

Details native and optional communication capabilities.

ACCESSORIES AND OPTIONS

Building Automation System Interface

Interface for connecting to BAS.

SECTION 3 - HANDLING AND STORAGE

MOVING THE CHILLER

Guidance on lifting and moving the chiller unit.

SECTION 4 - INSTALLATION

INSTALLATION CHECKLIST

Checklist of essential items before placing units in operation.

LOCATION AND CLEARANCES

Guidelines for selecting unit location and required clearances.

CHILLED LIQUID PIPING

Guidelines for connecting the chilled liquid piping system.

WIRING

Information on field wiring and connections.

Field Wiring

Details power wiring requirements and recommendations.

SECTION 5 - TECHNICAL DATA

OPERATIONAL LIMITATIONS (ENGLISH)

English units for operational limits.

OPERATIONAL LIMITATIONS (SI)

SI units for operational limits.

Voltage Limitations

Absolute voltage limitations in SI units.

ELECTRICAL DATA (ENGLISH)

Tables detailing electrical data for various models and configurations.

ELECTRICAL DATA

Micro panel power supply and voltage range information.

ELECTRICAL NOTES AND LEGEND

Explains electrical notes, legends, and NEC compliance.

CONTROL WIRING DIAGRAMS

Diagrams illustrating control wiring for different configurations.

POWER OPTIONS CONNECTION DIAGRAMS

Diagrams for power wiring connections of various options.

CONNECTION WIRING DIAGRAMS

Diagrams illustrating connection wiring for various configurations.

TECHNICAL DATA - CLEARANCES

Recommended clearances for unit installation.

FIGURE 30 - UNIT CLEARANCES - ALL MODELS

Diagram showing recommended clearances for all models.

ISOLATORS

Information on vibration isolation for chillers.

SECTION 6 - COMMISSIONING

COMMISSIONING

Procedures for commissioning the chiller unit.

PREPARATION - POWER OFF

Initial checks to perform with the unit power OFF.

Refrigerant Charge

Procedures for checking and charging refrigerant.

PREPARATION - POWER ON

Checks to perform with the unit power ON.

Water System

Verifying correct installation and commissioning of the chilled liquid system.

Flow Switch

Verifying correct fitting and wiring of the chilled water flow switch.

EQUIPMENT START-UP CHECKLIST

Checking The System Prior To Initial Start (No Power)

Pre-power checks on the unit and its systems.

Program;verify the Cooling Setpoints, Program Setpoints, and Unit Options

Verifying and programming control setpoints and options.

CHECKING SUPERHEAT AND SUBCOOLING

Procedures for checking and calculating superheat and subcooling.

LEAK CHECKING

Procedures for leak checking the system.

SECTION 7 - UNIT CONTROLS

IPU II AND I;O BOARDS

Description of the integrated control boards.

Keypad Commands

How to use the keypad for programming and accessing features.

STATUS KEY

Using the STATUS key to check chiller operating status.

Unit Status

Explains different types of status messages displayed.

Fault Status Messages

Explains fault messages related to safeties.

System Safeties

Details faults that shut down individual systems.

Unit Safeties

Details faults that shut down all running compressors.

DISPLAY;PRINT KEYS

Oper Data Key

Accessing and scrolling through operating data screens.

Print Key

Obtaining real-time or historical data printouts.

SETPOINTS KEYS

Cooling Setpoints

Programming the cooling setpoint and range.

Leaving Chilled Liquid Control

Control based on leaving chilled liquid temperature.

Return Chilled Liquid Control

Control based on return chilled liquid temperature.

PROGRAM KEY

SECTION 8 - UNIT OPERATION

CAPACITY CONTROL

How the unit manages cooling capacity.

LEAVING CHILLED LIQUID CONTROL

Regulation of chilled liquid temperature based on setpoint.

LOAD LIMITING

SECTION 9 - SERVICE AND TROUBLESHOOTING

SERVICE MODE

Mode for enabling/disabling outputs, changing parameters, and viewing inputs.

TABLE 37 - TROUBLESHOOTING

York YCAL0052 Specifications

General IconGeneral
BrandYork
ModelYCAL0052
CategoryChiller
LanguageEnglish

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