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York MaxE YK User Manual

York MaxE YK
36 pages
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OPERATING & MAINTENANCE
MAXE
TM
CENTRIFUGAL LIQUID CHILLERS
Supersedes: 160.73-O2 (1202)
Form 160.73-O2 (605)
MODEL YK (STYLE F)
R-134a COOLING ONLY
WITH OPTIVIEW
TM
CONTROL CENTER
FOR ELECTRO-MECHANICAL STARTER,
SOLID STATE STARTER & VARIABLE SPEED DRIVE
00611VIP
LDO5842

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York MaxE YK Specifications

General IconGeneral
BrandYork
ModelMaxE YK
CategoryChiller
LanguageEnglish

Summary

GENERAL SAFETY GUIDELINES

HAZARD SYMBOL IDENTIFICATION

Describes hazard warning symbols used in the document.

UNAUTHORIZED EXTERNAL WIRING WARNING

Warns against unauthorized external wiring connections to the micro panel.

SYSTEM DESCRIPTION AND FUNDAMENTALS

CHILLER SYSTEM OPERATION OVERVIEW

Explains how the YORK Model YK MaxETM Chiller operates.

SYSTEM OPERATING PROCEDURES

OIL LEVEL CHECK IN RESERVOIR

Explains how to check and maintain the oil reservoir level using indicators.

CHILLER START-UP PROCEDURE

Outlines the steps for initiating chiller operation, including pre-starting checks.

OPERATING INSPECTIONS AND LOGS

DAILY INSPECTION GUIDELINES

Lists specific checks to be performed each day by the operator.

WHEN TO SEEK MAINTENANCE OR SERVICE

Guides users on when to seek professional help for malfunctions.

SYSTEM SHUTDOWN PROCEDURE

Describes the steps for safely stopping the chiller.

SYSTEM COMPONENTS DESCRIPTION

COMPRESSOR LUBRICATION SYSTEM

Describes the oil pump, cooler, filter, and reservoir for lubrication.

TROUBLESHOOTING

HIGH DISCHARGE PRESSURE SYMPTOMS AND CAUSES

Addresses problems causing abnormally high discharge pressure.

LOW SUCTION PRESSURE SYMPTOMS AND CAUSES

Addresses problems causing abnormally low suction pressure.

HIGH CHILLED WATER TEMPERATURE ISSUES

Troubleshoots causes of high chilled water temperature.

NO OIL PRESSURE ON STARTUP ISSUES

Solves issues where no oil pressure is detected at startup.

HIGH OIL PRESSURE SYMPTOMS AND CAUSES

Troubleshoots unexpectedly high oil pressure readings.

OIL PUMP NOISE OR VIBRATION ISSUES

Addresses issues with a noisy or vibrating oil pump.

REDUCED OIL PUMP CAPACITY ISSUES

Identifies causes for decreased oil pump output.

OIL PRESSURE GRADUAL DECREASE ISSUES

Solves gradual decreases in oil pressure readings.

OIL PUMP FAILURE TO DELIVER PRESSURE

Addresses oil pump failures in delivering pressure.

MAINTENANCE PROCEDURES

REFRIGERANT LEAK CHECKING

Details procedures for leak testing the refrigerant system.

MEGGING MOTOR WINDINGS PROCEDURE

Describes the process of testing motor windings with a megohmmeter.

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