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York YLAA0175 User Manual

York YLAA0175
206 pages
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YLAA0041 – YLAA0230
Air-Cooled Scroll Chillers
With Brazed Plate Heat Exchanger
Style B (60 HZ) 4–12 Fan
40 ton to 230 ton
140 kW to 800 kW
R-410A
Issue Date:
August 3, 2022
Air-Cooled Scroll Chiller
Installation, Operation,
Maintenance
Supersedes: 150.72-ICOM6 (221) Form 150.72-ICOM6 (822)
Products are produced at a
f aci lit y who s e qua l it y -
management systems are
ISO9001 certified.
035-23572-100

Table of Contents

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York YLAA0175 Specifications

General IconGeneral
BrandYork
ModelYLAA0175
CategoryChiller
LanguageEnglish

Summary

GENERAL SAFETY GUIDELINES

IMPORTANT SAFETY INFORMATION

Critical warnings and precautions for safe handling and operation.

SECTION 1 – GENERAL CHILLER INFORMATION AND SAFETY

HANDLING AND SAFETY STANDARDS

Guidelines for safe unit handling and compliance with safety standards.

MISUSE OF EQUIPMENT AND HAZARDS

Covers potential hazards from improper use, structural issues, and electrical safety.

SECTION 4 – INSTALLATION

INSTALLATION CHECKLIST AND STARTUP

Steps for unit installation, pre-startup checks, and commissioning.

ELECTRICAL CONNECTIONS AND WIRING

Information on field wiring, power connections, and control wiring.

SECTION 5 – TECHNICAL DATA

PHYSICAL AND ELECTRICAL DATA

Provides detailed physical dimensions and electrical specifications.

WIRING DIAGRAMS

ELEMENTARY WIRING DIAGRAMS

Schematics illustrating electrical connections for unit functions.

SECTION 6 – COMMISSIONING

PREPARATION AND SAFETY CHECKS

Initial steps for commissioning, including power-off checks and refrigerant handling.

REFRIGERANT CHARGING PROCEDURE

Detailed steps for charging the refrigerant system after vacuuming.

START-UP CHECKLIST

A comprehensive checklist for performing the initial unit start-up.

SECTION 7 – UNIT CONTROLS

SYSTEM AND UNIT SAFETY

Details on various system and unit safeties causing shutdown.

COMMUNICATIONS CONFIGURATION

Details on setting up BACnet, Modbus, N2, and YorkTalk 2 communication protocols.

SECTION 8 – UNIT OPERATION

SECTION 9 – SERVICE AND TROUBLESHOOTING

SERVICE MODE OPERATIONS

Instructions for accessing and using the chiller's service mode for diagnostics.

INPUT/OUTPUT CHECKING AND TROUBLESHOOTING

Guides for checking inputs/outputs and diagnosing common operational issues.

TROUBLESHOOTING

COMMON PROBLEMS AND SOLUTIONS

A table listing common problems, their causes, and recommended solutions.

SECTION 10 – MAINTENANCE

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