York 371-01200-011 User Manual

OPERATING & MAINTENANCE
Supersedes: Nothing
Form 160.52-O1 (898)
MODEL YK (STYLE D)
R-134a (COOLING ONLY)
WITH MICROCOMPUTER CONTROL CENTER
PART #371-01200-010, 371-01200-011 & 371-01200-015
FOR ELECTRO-MECHANICAL STARTER,
SOLID STATE STARTER & VARIABLE SPEED DRIVE
WARNING
SYSTEM CONTAINS REFRIGERANT UNDER PRESSURE.
SERIOUS INJURY COULD RESULT IF PROPER PROCEDURES ARE NOT
FOLLOWED WHEN SERVICING SYSTEM. ALL SERVICE WORK SHALL
BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN IN ACCOR-
DANCE WITH YORK INSTALLATION/OPERATION MANUAL.
MILLENNIUM
TM
CENTRIFUGAL LIQUID CHILLERS
28815A

York 371-01200-011 Specifications

General

Model	371-01200-011
Cooling Capacity	Not Available
Refrigerant Type	Not Available
Compressor Type	Not Available
Full Load Amperage	Not Available
Voltage	Not Available
Sound Level	Not Available
Weight	Not Available

Summary

Section 1: Description of System and Fundamentals of Operation

System Operation Description

Explains the basic operation of the chiller system and its components, including refrigerant flow.

Section 2: Microcomputer Control Center

Control Center Functions and Modes

System Setpoints Management

Lists and explains various programmable system setpoints for chiller operation.

Programming System Setpoints

Provides instructions on how to access and program system setpoints via the control center.

Service Keys and Functions

Section 3: System Operating Procedures

Chiller Start-Up Procedure

Outlines the pre-starting checks and steps required for starting the chiller unit.

Section 6: Troubleshooting

System Shutdown Causes

Lists causes of normal and safety system shutdowns and required service actions.

Troubleshooting Analysis Chart

Presents an operating analysis chart for diagnosing common system symptoms and their remedies.

Section 8: Preventive Maintenance

Compressor Maintenance Routine

Covers oil filter changes, oil changes, and motor checks for the compressor.

Cooler and Condenser Maintenance