Table of Contents
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MicroTech Ι Ι Ι Ι Ι Ι Ι Ι ™ ™ ™ ™ Controller
With Starter Information
For Centrifugal Chillers and Templifiers™ ™ ™ ™
Models WSC, WDC, WCC, HSC, TSC
Software Version: WCFU3UU04C/D/E
OITS Version: 2.05.03
Operating Manual
OM CentrifMicro II-5
Group: Chiller
Part Number: 331374901
Effective: March 2011
Supersedes: November 2010
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Table of Contents
Troubleshooting
Related Manuals for McQuay TSC
Summarization of Contents
Introduction
Software Version and Environment Limits
Details on the software version, temperature, and humidity operating parameters.
Safety Warnings and Precautions
Critical warnings regarding electrical hazards, static discharge, and system modifications.
General Description
Control Architecture Overview
Diagram and explanation of the major control components and their interaction.
Component Descriptions
Operator Interface Touch Screen (OITS)
Primary interface for unit information and setpoint input.
Unit and Compressor Controllers
Description of hardware structure and keypad layout for controllers.
Controller Component Details
Various Boards and Isolator
Details on Guardister Board, Signal Converter, Transducer Converter, and PLAN Isolator.
Dual/Multi-Chiller Operation
Multiple Chiller Setup
Guidelines for interconnecting multiple chillers via pLAN.
pLAN Communication Setup
Steps for establishing pLAN communication between chillers.
MicroTech II Operator Interface Settings
Operating Sequence and WCC Settings
Configuration for compressor staging and WCC specific settings.
Operator Interface Touch Screen Navigation
Navigating the OITS Interface
How to use the Home screen and navigate between VIEW, SET, and HISTORY menus.
Screen Descriptions
View Screens Overview
Information displayed on unit status and water temperature screens.
SETPOINT Screen Overview
Procedure for Changing Setpoints
Step-by-step guide for modifying setpoints via the interface.
Tower Control Settings Explanation
Tower Fan Staging Only Mode
Configuration for tower fan staging without bypass or VFD control.
Unit Controller Operation
Navigating the Controller Menu
Describes menu hierarchy and navigation methods.
View Screen Descriptions
Unit Status and Water Views
Details on viewing unit status and water parameters.
Compressor Setpoints
Compressor Staging Modes
Explanation of NORMAL, HI EFF, PUMP, and STANDBY staging modes.
Alarms and Security
Controller and OITS Security Access
Procedures for entering passwords for unit controller and OITS.
Low Voltage Starters
General Starter Information
Overview of low voltage Wye-Delta and solid-state starters.
Starter Operation and Troubleshooting
Viewing and Setting Starter Parameters
Procedures for programming, viewing parameters, and resetting faults.
Medium/High Voltage Starters
Medium/High Voltage Starter Overview
Description and model numbers for medium voltage starters.
Sequence of Operation
Chiller Starting and Compressor Staging
Describes the sequence for chiller startup and compressor staging.
Operating the Chiller Control System
Unit Start/Stop Methods
Details on starting/stopping the chiller via interface, switches, or BAS.
Setpoint Changes, Alarms, and System Failures
Component Failure Scenarios
Operation without interface panel, unit controller, or standby power.
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