McQuay LonWorks Installation Manual
Installation and Maintenance
MicroTech II™
Chiller Unit Controller
LonWorks® Communication Module
Chiller Functional Profile
•
Centrifugal Chillers
•
Screw Chillers
IM 735-0
: Controls
Group
: October 2004
Date
Supersedes:
January 2003
•
Global Chillers
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 the Protocol Data Packet to integrate the unit into your network. The Protocol Data Packet
contains addressing details, BACnet® and LonWorks® 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 Protocol Data Packets. These documents are available from your local
McQuay International representative and for downloading at the McQuay International web
site: www.mcquay.com.
© 2004 McQuay International
Contents
Figures...................................................................................................................................................2
Revision History....................................................................................................................................3
Reference Documents............................................................................................................................3
General Information ..............................................................................................................4
Description............................................................................................................................................4
Application............................................................................................................................................5
Component Data....................................................................................................................................5
Service Pin.........................................................................................................................................6
Light Emitting Diodes (LEDs)...........................................................................................................6
LonWorks Network Connector..........................................................................................................6
8-Pin Header......................................................................................................................................6
LonMark Profile Software.................................................................................................................7
Neuron...............................................................................................................................................7
Transceiver........................................................................................................................................7
Specifications ........................................................................................................................................7
Installation..............................................................................................................................8
Mounting....................................................................................................................... ........................ 8
Mounting a MicroTech II LonWorks Communications Module.......................................................8
Replacing an Existing MicroTech II LonWorks Communications Module.....................................11
Unit Setup for Network Control ......................................................................................................11
Integration............................................................................................................................12
Connecting to the Network..................................................................................................................12
Network Topology...........................................................................................................................12
Physical Network.............................................................................................................................14
Addressing and Establishing Communications....................................................................................15
LonWorks Network Addressing......................................................................................................15
Commissioning the Network ...........................................................................................................15
External I
Configuring the Unit Controller ..........................................................................................................15
Service Information.............................................................................................................16
Test Procedures...................................................................................................................................16
Replaceable Parts List.........................................................................................................................16
Network Connection Plug................................................................................................................16
Replacement Kit..............................................................................................................................16
nterface File (XIF)...........................................................................................................15
Figures
Figure 1. MicroTech II LonWorks Communications Module (Component Side).................................4
Figure 2. Building Automation System.................................................................................................5
Figure 3. MicroTech II LonWorks Communications Module Major Components ...............................6
Figure 4. Serial Card Slot Location on Unit Controller.........................................................................9
Figure 5. Serial Card Slot Detail. .......................................................................................................... 9
Figure 6. Network Cable Routing and Connections............................................................................10
Figure 7. Network Connection Detail..................................................................................................10
Figure 8. Singly Terminated Free Topology Networks .......................................................................12
Figure 9. Combining Network Segments With a Repeater..................................................................13
Figure 10. Doubly Terminated Network Topology.............................................................................13
2 IM 735-0
Revision History
IM 735-0 January 30, 2003 Initial release
IM 735-0 October 2004 Corrections to Figures 6 and 7
Reference Documents
Number Company Title
078-0014-01E LonMark®
078-0120-01E LonMark
078-0156-01G Echelon® Corporation LonWorks FTT-10A Free Topology Transceiver Users Guide
8040_10 LonMark
ED15062 McQuay International MicroTech II Protocol Information Data for McQuay International Chiller
IMM AGS-1 McQuay International MicroTech II Air-Cooled Screw Chiller Installation and Maintenance
IOMM ACZ/AGZ-3 McQuay International MicroTech II Air-Cooled Condensing Unit Installation, Operation, and
IOMM ACZ1 McQuay International MicroTech II Air-Cooled Condensing Unit Installation, Operation, and
IOMM AGZ-4 McQuay International MicroTech II Air-Cooled Scroll Chiller Installation, Operation, and
IOMM WGZ-1 McQuay International MicroTech II Water-Cooled Scroll Chiller Installation Manual
IOMM WPV McQuay International MicroTech II Centrifugal Chiller Installation, Operation, and Maintenance
IOMM WSCWDC-2 McQuay International MicroTech II Chiller Unit Controller Installation, Operation, and
OM AGS-1 McQuay International MicroTech II Controller for AGS Chillers Operating Manual
OM CentrifMicro II McQuay International MicroTech II Unit Controller for Centrifugal Chillers and Templifiers
Interoperability
LonMark Layers 1-6 Interoperability Guidelines, Version 3.0
Association
LonMark Application Layer Interoperability Guidelines, Version 3.2
Interoperability
Association
LonMark Functional Profile: Chiller, Version 1.0
Interoperability
Association
Unit Controllers
Manual
Maintenance Manual
Maintenance Manual
Maintenance Manual
Manual
Maintenance Manual
Operating Manual
Notice
Copyright © 2003 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.
BACnet is a registered trademark of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Echelon, LONW
, LonTalk, and Neuron are registered trademarks of Echelon Corporation. Windows is a registered trademark of Microsoft Corporation.
L
ONMARK
McQuay registered is a trademark and MicroTech II is a trademark of McQuay International.
IM 735-0 3
ORKS
,
General Information
This manual contains the information you need to install the MicroTech II LonWorks®
Communication Modules and integrate them into the network.
WARNING
!
Electric shock hazard. Can cause personal injury or equipment damage.
This equipment must be properly grounded. Connections and service to the MicroTech II control
panel must be performed only by personnel knowledgeable in the operation of the equipment being
controlled.
CAUTION
!
Static sensitive components. Can cause equipment damage.
Discharge any static electrical charge by touching the bare metal inside the control panel before
performing any service work. Never unplug cables, circuit board terminal blocks, or power plugs
while power is applied to the panel.
NOTICE
This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with this instruction manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his or her own expense.
any liability resulting from any interference or for the correction thereof.
McQuay International disclaims
Description
A MicroTech II LonWorks Communications Module provides the interface between a MicroTech II
unit controller and a LonWorks Local Operating Network (LON). It translates the LonTalk variables
used on the network to the variables used in the unit controller and vice versa. It translates in
accordance with the LonMark® Chiller Functional Profile. Profiles are interpreted in loaded
programs (firmware).
The MicroTech II LonWorks Communications Module is a printed circuit board that plugs into the
MicroTech II Chiller Unit Controller. Figure 1 is an outline drawing of the printed circuit board.
Figure 1. MicroTech II LonWorks Communications Module (Component Side)
4 IM 735-0
Application
A MicroTech II LonWorks Communications Module connects the MicroTech II Unit Controller to
the Building Automation System (BAS) on a LonWorks network. It is the interface adapter for the
exchange of LonTalk variables between the network and the unit controller. The MicroTech II
LonWorks Communications Module translates the LonWorks variables of the profile into the native
information of the unit controller. Figure 2 shows the MicroTech II LonWorks Communications
Module and Unit Controller integrated into a BAS. Refer to the appropriate Unit Operation manual
for keypad details. See Reference Documents for part numbers.
Figure 2. Building Automation System
Compressor Controller
Optional
LonWorks
FTT-10A
Network
Compressor Controller
System Integration Node
Component Data
Figure 3 shows the location of the major components of the MicroTech II LonWorks
Communications Module.
MicroTech II
Centrifugal
Chiller Unit
Controller
MicroTech II
MicroTech II
LonWorks
Communications
Module
Keypad
IM 735-0 5
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