York YLAA0155 User Manual

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

York YLAA0155 Specifications

General

Brand	York
Model	YLAA0155
Category	Chiller
Language	English

Summary

SECTION 1 – GENERAL CHILLER INFORMATION AND SAFETY

WARRANTY

Details Johnson Controls' warranty policy for equipment and materials, including limitations and conditions for claims.

SAFETY AND QUALITY

Information on chiller safety standards, design, and manufacturing compliance with ISO 9002.

SECTION 5 – TECHNICAL DATA

OPERATIONAL LIMITATIONS

Table detailing operational limits for temperatures and flows for various YLAA models.

PHYSICAL DATA (ENGLISH) 60 HZ

Table listing physical specifications for YLAA units, including dimensions, charge, compressors, and condenser details.

ELECTRICAL DATA

Information on electrical requirements, voltage ranges, and compressor heater specifications.

WIRING DIAGRAMS

Schematic diagrams illustrating elementary wiring for chiller components and systems.

SECTION 7 – UNIT CONTROLS

STATUS KEY

Guide to interpreting status messages displayed on the control panel, including general and fault messages.

SECTION 8 – UNIT OPERATION

Unit Operating Sequence

Describes the sequence of operation for the chiller after power application, including compressor staging.

CAPACITY CONTROL

Explains how the control system regulates chilled liquid temperature based on setpoints and demand.

SUCTION PRESSURE LIMIT CONTROLS

LEAVING CHILLED LIQUID CONTROL

SECTION 9 – SERVICE AND TROUBLESHOOTING

RESETTING SYSTEM LOCKOUT FAULTS

SERVICE MODE

Guidance on entering Service Mode to view and modify unit outputs and configuration.

CHECKING INPUTS AND OUTPUTS