Installation and Maintenance
IM 743-1
Group:
Controls
Part Number:
IM 743
Date:
May 2005
Supersedes:
IM 743-0
© 2005 McQuay International
MicroTech II®
Chiller Unit Controller
Modbus® Communication Module
•
WSC
Water-Cooled Centrifugal, Single-Compressor
•
WDC
Water-Cooled Centrifugal, Dual-Compressor
•
WPV
Water-Cooled Centrifugal, Single-Compressor
•
HSC
Water-Cooled
Single-Compressor Centrifugal, Heat Recovery
•
HDC
Water-Cooled Dual-Compressor Centrifugal, Heat Recovery
•
TSC
Water-Cooled Single-Compressor Centrifugal, Templifier
•
WMC
Water-Cooled Centrifugal, Magnetic Bearing
•
AGZ
Air-Cooled Global Scroll
•
ACZ
Air-Cooled Scroll Condensing Unit
•
WGZ
Water-Cooled Global Scroll
•
AGS
Air-Cooled Global Screw
•
WGS
Water-Cooled Global Screw
NOTICE
Use this manual to physically install the communications module into the unit and connect the unit to
your network. You also need the appropriate McQuay Engineering Data Sheet known as Protocol
Information to integrate the unit into your network. Protocol Information contains addressing details,
Modbus® protocol information, and a list of the data points available to the network. See the
Reference Documents section of this document for part numbers of the Protocol Information. These
documents are available from your local McQuay International representative and at the McQuay
International web site:
www.mcquay.com
.
