EasyManua.ls Logo

York R123 User Manual

York R123
156 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
OPERATING & MAINTENANCE
MILLENNIUM
®
CENTRIFUGAL LIQUID CHILLERS
Supersedes: 160.55-O1 (402)
Form 160.55-O1 (604)
MODEL YT (STYLE J)
R123 COOLING ONLY
WITH OPTIVIEW
CONTROL CENTER
FOR ELECTRO-MECHANICAL STARTER,
SOLID STATE STARTER & VARIABLE SPEED DRIVE
29509A

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the York R123 and is the answer not in the manual?

York R123 Specifications

General IconGeneral
Compressor TypeCentrifugal
RefrigerantR-123
Cooling CapacityVaries by model
EfficiencyVaries by model
Sound LevelVaries by model
VoltageVaries by model
DimensionsVaries by model
WeightVaries by model

Summary

General Safety Guidelines

Safety Symbols

Explains the meaning of safety symbols used throughout the document.

Changeability of This Document

Reference Instructions

Nomenclature

Section 1 Description of System and Fundamentals of Operation

System Operation Description

Describes the chiller's operational flow and system components.

Capacity Control

Details the mechanism for controlling chiller capacity using prerotation vanes.

Section 2 OptiView Control Center

Introduction

Provides an overview of the OptiView Control Center and its functions.

Control Center

Details the layout and functionality of the OptiView Control Center display and keypad.

Interface Conventions

Explains the general conventions used for displaying information and user interaction.

Home Screen

Describes the default display upon chiller startup, showing primary monitored parameters.

System Screen

Provides a general overview of common chiller parameters for both shells.

Evaporator Screen

Displays evaporator-related setpoints and provides a cutaway view of the evaporator.

Condenser Screen

Shows condenser-related setpoints and offers a cutaway view of the condenser.

Purge Screen

Displays the status of the Purge Tank, float switches, and solenoids.

Refrigerant Level Control Screen

Details liquid refrigerant level control and variable orifice position.

Compressor Screen

Presents a cutaway view of the compressor, showing its operating parameters.

Hot Gas Bypass Screen

Displays hot gas bypass valve position and related control parameters.

Surge Protection Screen

Shows parameters related to the surge protection feature for the compressor.

Pre-Rotation Vanes Calibration Screen

Allows calibration of the pre-rotation vanes for VSD or Hot Gas Bypass applications.

VSD Tuning Screen

Details tuning parameters for the Variable Speed Drive and manual vane control.

Oil Sump Screen

Displays a close-up view of the chiller oil sump and related parameters.

Electro-Mechanical Starter Screen

Provides information specific to the Electro-Mechanical Starter.

Mod "A" Solid State Starter Screen

Details information pertaining to the Mod "A" Solid State Starter.

Mod "B" Solid State Starter Screen

Details information pertaining to the Mod "B" Solid State Starter.

Variable Speed Drive Screen

Displays general information related to the Variable Speed Drive (VSD).

Variable Speed Drive Details Screen

Offers more detailed information about the Variable Speed Drive (VSD).

Adaptive Capacity Control Details Screen

Provides detailed information on the Adaptive Capacity Control (ACC) feature.

Harmonic Filter Details Screen

Shows detailed information regarding the IEEE-519 Harmonic Filter.

Setpoints Screen

Offers a central location for programming common chiller setpoints.

Setup Screen

Allows configuration of general system parameters like time, date, and language.

User Screen

Enables definition of custom User IDs, passwords, and access levels.

Comms Screen

Allows definition of necessary communication parameters for printers and serial ports.

Printer Screen

Configures necessary communication parameters for the printer.

Sales Order Screen

Allows definition of sales order parameters, entered at commissioning.

Operations Screen

Defines general parameters related to chiller operation.

History Screen

Allows browsing through fault logs and system shutdowns.

History Details Screen

Displays an on-screen printout of system parameters at the time of a selected shutdown.

Security Log Screen

Displays a listing of the last 75 setpoint changes.

Trend Screen

Allows plotting of selected parameters in an X/Y graph format.

Trend Setup Screen

Used to configure the trending screen parameters and data collection.

Advanced Trend Setup Screen

Sets up data collection start/stop triggers based on digital events or analog parameters.

Common Slots Screen

Displays slot numbers for commonly monitored parameters for trending.

Custom View Setup

Allows selection of up to 10 parameters for display on the Custom View Screen.

Section 3 Printers

Printers

Lists compatible printers and provides guidelines for using unlisted printers.

Printer Setup

Details the configuration steps required for selected printers.

Printer Connections

Explains how to connect printers to the Control Center Microboard.

Control Center Setup

Outlines the necessary Control Center settings for printer communication.

Section 4 System Operating Procedures

Oil Heaters

Explains the function and operation of the oil heaters.

Checking the Oil Level in the Oil Reservoir

Details the procedure for checking and maintaining the oil level in the reservoir.

Start-Up Procedure

Provides step-by-step instructions for starting up the chiller.

Chiller Operation

Describes how the chiller operates, including capacity control and vane modulation.

Condenser Water Temperature Control

Explains the control of condenser water temperature for optimal chiller performance.

Checking Operation

Outlines periodic checks to ensure proper chiller operation.

Operating Log Sheet

Emphasizes the importance of maintaining a daily record of operating conditions.

Operating Inspections

Provides a list of daily, weekly, and quarterly inspections for optimal chiller performance.

Prolonged Shutdown

Details the procedure for shutting down the chiller for extended periods.

Start Up After Prolonged Shut Down

Outlines the steps for restarting the chiller after a prolonged shutdown.

Section 5 System Components Description - Compressor / Motor Assembly

Casing

Describes the construction and material of the compressor casing.

Compressor

Details the components and design of the compressor rotor assembly.

Bearings

Explains the types of bearings used in the compressor assembly.

Internal Gears

Describes the design and function of the internal gears.

Lubrication System

Explains the oil system for lubricating compressor bearings and gears.

Capacity Reduction - Prerotation vanes (PRV)

Describes the function of prerotation vanes in modulating chiller capacity.

Shaft Seal

Details the construction and material of the compressor shaft seal.

Open Motor

Describes the open motor used with the compressor, including types and construction.

Motor Terminal Box

Explains the construction and provisions of the motor terminal box.

Compressor Lubrication System

Details the entire chiller lubrication system, including oil pump, filter, and cooler.

Oil Pump

Explains the operation of the oil pump, including manual and automatic modes.

Oil Heater

Describes the function of the oil heater in preventing oil foaming.

Shells

Details the construction of the cooler and condenser shells.

Tubes

Describes the type and installation of the heat exchanger tubes.

Compact Water Boxes

Explains the construction and features of the water boxes.

Cooler

Describes the cooler's design, distribution system, and refrigerant sight glass.

Condenser

Details the condenser's design, baffles, and purge connection.

Refrigerant Flow Control

Explains the refrigerant flow control mechanism and bursting disc.

Solid State Starter (Optional)

Describes the function and availability of the Solid State Starter.

Variable Speed Drive (Optional)

Details the function and operation of the Variable Speed Drive.

Section 6 Operational Maintenance

Oil Return System

Explains the function of the oil return system in maintaining compressor oil levels.

Oil Return

Details how the oil return system maintains proper oil level in the compressor sump.

Changing the Dehydrator

Provides step-by-step instructions for changing the dehydrator.

Charging the Unit with Oil

Explains the procedure for charging the compressor oil reservoir.

Oil Charging Procedure

Details the steps for charging oil using the YORK Oil Charging Pump.

Section 8 Maintenance

Renewal Parts

Refers to forms for ordering required renewal parts.

Checking System for Leaks

Describes procedures for testing the system for refrigerant leaks.

Leak Testing During Operation

Explains how to perform leak tests while the system is operational.

Conducting Pressure Test

Details the procedure for conducting a pressure test after refrigerant charge removal.

Section 9 Preventive Maintenance

Preventive Maintenance

Outlines the owner's responsibility for daily, monthly, and yearly maintenance.

Compressor

Details maintenance procedures for the compressor assembly, including oil filter and windings.

Oil Filter

Specifies when to change the oil filter based on operating hours and pressure drops.

Electrical Controls

Covers inspection of electrical controls and RTC battery replacement.

Compressor Motor

Details checks for motor mounting screws and winding megger tests.

Pressure Testing

Emphasizes annual pressure testing to detect and repair leaks.

Cooler and Condenser

Covers maintenance of the water side of the cooler and condenser.

Purge Unit

Details procedures for maintaining the purge unit, including dehydrator changes.

Oil Return System

Outlines semi-annual replacement of the oil return system dehydrator.

Electrical Controls

Covers inspection of electrical controls and checking the RTC battery.

Section 10 Optisave Energy Analyser Feature

Related product manuals