4 ED 15121
Limited Warranty
Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your local McQuay
Representative, go to www.mcquay.com.
Notice
© 2009 McQuay International, Minneapolis MN. All rights reserved throughout the world.
McQuay International reserves the right to change any information contained herein without prior notice. The user is
responsible for determining whether this product is appropriate for his or her application.
™ ® The following are trademarks or registered trademarks of their respective companies. Modbus is a registered
trademark of Gould, Inc. Windows is a registered trademark of Microsoft Corporation. MicroTech III is a registered
trademark of McQuay International.
Revision History
ED 15121 October 2009 Preliminary release.
Software Revision
This edition documents all versions of the standard MicroTech
®
III Chiller Unit Controller firmware and all subsequent
revisions until otherwise indicated.
Reference Documents
Company Number Title Source
McQuay
International
IM 969 MicroTech III Modbus Communication Module Installation Manual www.mcquay.com
McQuay
International
IM 1002 (50Hz )
IM 997 (60Hz)
Pathfinder
™
Air Cooled Chiller Installation Manual
www.mcquay.com
McQuay
International
OM 998 Pathfinder Air Cooled Chiller Operation Manual www.mcquay.com
Modbus-IDA.ORG MODBUS Application Protocol Specification V1.1b www.Modbus.org
Modbus-IDA.ORG
MODBUS over Serial Line Specification and Implementation Guide
V1.02
www.Modbus.org
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