Johnson Controls York YCIV0357 - User Manual

R134A
YCIV STYLE A
MODELS
YCIV0157-0397, 60 HZ
(150-260 TONS)
AIR-COOLED SCREW LIQUID CHILLERS
E/V HIGH EFFICIENCY AND S/P STANDARD EFFICIENCY
AIR-COOLED SCREW LIQUID CHILLERS
INSTALLATION, OPERATION, MAINTENANCE
Supersedes: 201.23-NM2 (610) Form 201.23-NM2 (315)
035-21506-101
Issue Date:
March 9, 2015

Summary

IMPORTANT! READ BEFORE PROCEEDING!

GENERAL SAFETY GUIDELINES

Essential safety information and precautions for operating the equipment.

SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY

SAFETY

Guidelines and standards for safe operation and installation of the chillers.

SECTION 4 - INSTALLATION

ELECTRICAL CONNECTION

Critical connection recommendations for safe and satisfactory unit operation.

SECTION 5 - COMMISSIONING

Refrigerant Charge

FIRST TIME START-UP

Procedures for the initial start-up of the chiller unit after installation.

SECTION 6 - TECHNICAL DATA

PHYSICAL DATA (ENGLISH - STANDARD EFFICIENCY)

ELECTRICAL DATA

2 Compressor Power Wiring Connections

3 Compressor Power Wiring Connections

SECTION 7 - OPERATION

OPERATING CONTROLS

BASIC OPERATING SEQUENCE

Step-by-step process for initiating chiller start-up and loading.

NUMBER OF COMPRESSORS TO START

Logic for determining the number of compressors to start based on load and efficiency modes.

SECTION 8 - MICROPANEL

VSD OPERATION AND CONTROLS

Overview of VSD logic board functions and operation.

VSD Cooling and Cooling Loop

How the VSD is cooled using a glycol loop and pump.

VSD SAFETIES (FAULTS)

Monitoring of VSD operating conditions for protection.

SECTION 9 - MAINTENANCE

GENERAL REQUIREMENTS

Daily Maintenance

MAINTENANCE REQUIREMENTS FOR YCIV CHILLERS

TROUBLESHOOTING GUIDE

No Display On Control Panel. Unit Will Not Run.

Line Fuse Blows.

LIMITED WARRANTY

Warranty on New Equipment

All Warranties and Guarantees Are Void If:

RECOMMENDED SPARE PARTS

Johnson Controls York YCIV0357 Specifications