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York OPTIVIEW YIA D User Manual

York OPTIVIEW YIA D
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OPERATION MANUAL
SINGLE STAGE YIA
ABSORPTION CHILLERS
WITH OPTIVIEW
TM
CONTROL CENTER
Supersedes: Form 155.21-O1 (410)
Form 155.21-O1 (615)
YIA MOD D
SINGLE STAGE
STEAM / HOT WATER
WITH OPTIVIEW
TM
CONTROL CENTER
1A1 through 14F3
LD13714
Issue Date:
June 12, 2015

Table of Contents

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York OPTIVIEW YIA D Specifications

General IconGeneral
TypeAir-Cooled Chiller
Control SystemOptiView Control Center
DimensionsVaries by model
WeightVaries by model
Sound LevelLow sound levels
Voltage Options575V
RefrigerantR-134a

Summary

General Safety Guidelines

Description of System and Fundamentals of Operation

Evaporator

Describes the function of the evaporator in cooling the chilled water.

Absorber

Explains how the absorber absorbs refrigerant vapor into the solution.

Generator

Describes the generator's role in heating the solution to produce refrigerant vapor.

Condenser

Explains how the condenser cools refrigerant vapor into liquid.

Automatic De-crystallization Pipe (ADC)

Describes the ADC pipe's role in bypassing crystallization.

Non-condensables

Explains non-condensables and their impact on performance.

2SOL (Stabilizer refrigerant solenoid valve)

Details the 2SOL valve's function in dilution and crystallization prevention.

3SOL (Unloader refrigerant level solenoid valve)

Explains the 3SOL valve's role in refrigerant level control.

OptiView Control Center

OptiViewâ„¢ Control Center Capabilities

Capabilities of the control center for remote control and communications.

Setpoints and Configuration Options

How to access and modify system setpoints and configurations.

Unit Operation

Details on starting and stopping the unit via various methods.

Automatic Load Control

Subcontrols determining load valve position.

Dilution Cycle Operation

Purpose and operation of the dilution cycle to prevent crystallization.

Purge Process

Overview of purge system operation and non-condensable removal.

Smart Purge

Features of the new smart purge system for YIA chillers.

Interface Conventions

Explains how to navigate and interact with the OptiView Control Center.

Access Level

Describes the VIEW, OPERATOR, and SERVICE access levels.

Home Screen

Evaporator / Absorber Screen

Generator / Condenser Screen

System Screen

Purge System Screen

Control Valve Screen

Setpoints Screen

Automatic Restart After Power Failure

Defines unit reaction to power failure and restart.

History Screen

Trend Screen

Trend Setup Screen

Triggers Screen

Display Messages

Start Inhibit Messages

Conditions preventing unit startup.

Routine Shutdown Messages

Messages indicating a normal chiller shutdown.

Cycling Shutdown Messages

Messages indicating a shutdown due to cycling.

Safety Shutdown Messages

Messages indicating safety shutdowns and recovery.

Warning Messages

Lists common warning messages and their recovery conditions.

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