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Johnson Controls YORK Tempo YLAA Series - User Manual

Johnson Controls YORK Tempo YLAA Series
192 pages
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YLAA0070 - YLAA0175
AIR-COOLED SCROLL CHILLERS
WITH MICROCHANNEL CONDENSER COILS
STYLE A (60 Hz)
70 - 175 TON
246-613 KW
INSTALLATION, OPERATION, MAINTENANCE
AIR-COOLED LIQUID CHILLERS
HERMETIC SCROLL
Supersedes 150.72-NM1 (110)
Form 150.72-NM1 (1020)
R-410A
035-21911-000
Interim
Products are produced at a
f a c i l i t y wh o s e q u a l i t y -
management systems are
ISO9001 certified.

Table of Contents

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Johnson Controls YORK Tempo YLAA Series Specifications

General IconGeneral
SeriesYLAA
CategoryChiller
RefrigerantR-134a
Compressor TypeScroll
Voltage Options200-600V, 3-phase, 50/60 Hz

Summary

SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY

WARRANTY

Details on product warranty coverage, duration, limitations, and conditions for validity.

SAFETY AND QUALITY

Information on safety standards, quality accreditation, and compliance with industry codes.

SECTION 4 - INSTALLATION

INSTALLATION CHECKLIST

Essential checks to perform before placing the units into operation.

SECTION 5 - TECHNICAL DATA

OPERATIONAL LIMITATIONS (ENGLISH)

Constraints for safe and effective unit operation, including temperature and flow limits.

Voltage Limitations

Absolute voltage limits that must be adhered to prevent compressor damage.

ELECTRICAL DATA

Summary of electrical specifications, including power supply, voltage ranges, and circuit protection.

SECTION 6 - COMMISSIONING

PREPARATION - POWER OFF

Basic checks to perform with the unit power switched OFF before commissioning.

PREPARATION - POWER ON

Steps to perform after applying power to the chiller, including switch settings and system checks.

EQUIPMENT PRE-STARTUP AND STARTUP CHECKLIST

Comprehensive checklist covering pre-startup checks, compressor heater checks, and startup panel checks.

SECTION 8 - UNIT OPERATION

CAPACITY CONTROL

Explanation of how the chiller adjusts its cooling capacity through compressor staging.

LEAVING CHILLED LIQUID CONTROL

Detailed explanation of the leaving chilled liquid temperature control logic and compressor staging.

SECTION 9 - SERVICE AND TROUBLESHOOTING

SERVICE MODE

Accessing and using the service mode for unit configuration, parameter viewing, and output control.

SERVICE MODE - ANALOG AND DIGITAL INPUTS

Viewing analog and digital inputs to the microboard, including pressure, temperature, and switch statuses.

TROUBLESHOOTING

Guide to diagnosing and resolving common problems with the chiller's operation.

SECTION 10 - MAINTENANCE

IMPORTANT

Critical information regarding maintenance responsibilities and warranty implications.

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