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McQuay MicroTech III Installation And Maintenance Manual

Mcquay chiller unit controller bacnet communication module (ms/tp) for pathfinder chiller, model aws air-cooled scroll compressor chiller, model agz-d
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Installation and Maintenance Manual
®
MicroTech
III
McQuay Chiller Unit Controller
®
BACnet
Communication Module (MS/TP)
Pathfinder
Chiller, Model AWS
Air-Cooled Scroll Compressor Chiller, Model AGZ-D
Use this manual to physically install the McQuay MicroTech III Communication Module into the Chiller unit
controller and connect the Chiller unit controller to your network. Use the appropriate McQuay Engineering
Data (ED), known as the Protocol Information document, to integrate the unit into your network. The Protocol
Information document contains addressing details, BACnet® protocol information, and a list of the data points
available to the network. See the Reference Documents section of this manual for Protocol Information
document numbers. MicroTech III control integration literature is available from your local McQuay International
sales representative and www.mcquay.com.
© 2010 McQuay International
NOTICE
IM 967-1
Group: Controls
Part Number: IM 967-1
Date: October 2010
Supercedes: IM 967

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Table of Contents
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  Summary of Contents for McQuay MicroTech III

  • Page 1 Air-Cooled Scroll Compressor Chiller, Model AGZ-D NOTICE Use this manual to physically install the McQuay MicroTech III Communication Module into the Chiller unit controller and connect the Chiller unit controller to your network. Use the appropriate McQuay Engineering Data (ED), known as the Protocol Information document, to integrate the unit into your network. The Protocol Information document contains addressing details, BACnet®...
  • Page 2: Table Of Contents

    Figure 6. MicroTech III Chiller Unit Controller Password Menu and Main Features......12 Figure 7. MicroTech III Chiller Unit Controller MSTP Setup Menu – Change Baud Rate ....13 Figure 8. MicroTech III Chiller Unit Controller MSTP Setup Menu – Apply Change ...... 13...
  • Page 3: Revision History

    Air-cooled Scroll Chiller, Model AGZ Operation Manual www.mcquay.com 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 Copyright © 2010 McQuay International, Minneapolis MN. All rights reserved throughout the world.
  • Page 4: General Information

    ® This manual contains the information you need to install the BACnet Communication Module on a MicroTech III Chiller Unit Controller, incorporate it into the BACnet network, and maintain it. Hazard Identification Messages DANGER Dangers indicate a hazardous situation that will result in death or serious injury if not avoided.
  • Page 5: Description

    The BACnet Communication Module is a printed circuit board with a plastic enclosure that connects to the left side of the McQuay D-Net™ Module as shown in Figure 1 or directly to the MicroTech III Chiller Unit Controller. The BACnet Communication Module provides access to the MicroTech III Chiller Unit Controller variables and parameters via BACnet.
  • Page 6: Light Emitting Diodes (Leds)

    (see Figure 2). BSP LED The BSP LED indicates the communication state between the BACnet Communication Module and the MicroTech III Chiller Unit Controller. The table below describes the status of the BSP LED. BSP LED Color Meaning Flashing between Red &...
  • Page 7: Bacnet Network Connector

    + , , and ref (see Figure 2). Board-To-Board Connector The board-to-board connector connects the MicroTech III Chiller Unit Controller to the BACnet Communication Module (see Figures 3, 4 and 5). Figure 3. BACnet MS/TP Communication Module and Knockout...
  • Page 8: Figure 4. Diagram Of Board-To-Board Connector

    Figure 4. Diagram of Board-to-Board Connector Figure 5. BACnet MSTP Communication Module with Board-to-Board Connector Inserted IM 967-1...
  • Page 9: Installation

    Installation The following section describes how to field install a new BACnet Communication Module or replace an existing BACnet Communication Module on the MicroTech III Chiller Unit Controller so that it can be incorporated into the BACnet network. CAUTION Electrostatic discharge hazard. Can cause equipment damage.
  • Page 10: Replacing An Existing Bacnet Communication Module

    Electric shock hazard. Can cause personal injury or equipment damage. This equipment must be properly grounded. Only personnel knowledgeable in the operation of the equipment being controlled must perform connections and service to the MicroTech III Chiller Unit Controller. 1. Remove power from the unit controller.
  • Page 11: Integration

    Integration Once the BACnet Communication Module has been properly installed on the MicroTech III Chiller Unit Controller, it is then necessary to configure the unit controller for integration into a Building Automation System (BAS) via the BACnet MS/TP network. The configuration process is described in the following section.
  • Page 12: Changing The Bacnet Ms/Tp Data Transmission Rate

    8. Navigate back to the BACnet MSTP Setup menu (see steps 1-4) to verify the settings of all parameters. This procedure may take a minute while the BACnet Communication Module powers up. Figure 6. MicroTech III Chiller Unit Controller Password Menu and Main Features Back button Circular knob (press...
  • Page 13: Figure 7. Microtech Iii Chiller Unit Controller Mstp Setup Menu - Change Baud Rate

    Figure 7. MicroTech III Chiller Unit Controller MSTP Setup Menu – Change Baud Rate Figure 8. MicroTech III Chiller Unit Controller MSTP Setup Menu – Apply Change IM 967-1...
  • Page 14 Table 1. BACnet MS/TP Network Configuration Parameters Parameter Value (Range)/Definition Initial Value/Note Apply Changes No-Yes/Setting this to yes will cycle power to the controller to allow the network setup changes to take place. Name Up to a 17-character Device Object Name. POL904_FF2BEE/This name must be unique Change this value as needed to match throughout the entire BACnet network.
  • Page 15: Service Information

    • Check the network parameters and verify that they are correct and that there are no duplicate devices on the network • Check communications If the BACnet Communication Module still does not respond, contact the McQuay Controls Customer Support Group at 866-4MCQUAY (866-462-7829). Parts List...
  • Page 16 This document contains the most current product information as of this printing. For the most current product information, please go to www.mcquay.com. All McQuay equipment is sold pursuant to McQuay’s Standard Terms and Conditions of Sale and Limited Warranty.