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Introduction
The MicroTech II
TM
Chiller System Manager (CSM) software consists of a web User Interface (WebUI – Web-like pages
accessible with Microsoft Internet Explorer) and multiple chiller control strategies programmed for common control of
multiple chiller unit controllers. The browser-based User Interface is used to edit control parameters required for multiple-
chiller control algorithms and to set certain parameters in the chiller controllers as necessary for multiple-unit control.
The multiple-unit control strategies provide automatic control for chillers connected to the CSM. The CSM software
executes and communicates information using a L
ONWORKS® communication network between the CSM and the
associated chiller unit controllers. The CSM is capable of communicating with a connected building automation system
(BAS) using BACnet® (IP or Ethernet protocol as standard) or Modbus® (RTU or ASCII available as an option). For
additional information, see the BACnet or Modbus Protocol Information documents, ED 15075 and ED 15077
respectively.
For additional information about the CSM’s features, sequence of operation, and programmable options, refer to OM 780-
MicroTech II Chiller System Manager Operations Manual. For specific information about the chiller unit controllers, refer
to the appropriate unit controller installation and/or operation manual.
Figure 1. System Architecture
!
WARNING
Electric shock hazard.
Can cause personal injury or equipment damage.
This equipment must be properly grounded to the MicroTech II control panel. Connections and service
must be performed by trained personnel with experience with the equipment being controlled.
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