Installation and Maintenance Manual
Group: McQuay Controls
Date: July 2002
MicroTech II™
AAF®HermanNelson® Unit Ventilator Controller
LonWorks® Communication Modules
IM 729-0
© 2002 McQuay International
Contents
GENERAL INFORMATION ............................................................................................................ 4
DESCRIPTION ..................................................................................................................................... 4
APPLICATION .....................................................................................................................................5
COMPONENT DATA ............................................................................................................................ 5
Service Pin .................................................................................................................................... 6
Light Emitting Diode (LED) ......................................................................................................... 6
LonWorks® Network Connector (TB1)......................................................................................... 6
12-Pin Header............................................................................................................................... 6
Neuron .......................................................................................................................................... 6
Transceiver ................................................................................................................................... 6
Specifications ................................................................................................................................ 6
INSTALLATION................................................................................................................................7
MOUNTING ........................................................................................................................................ 7
To install a MicroTech II™ LonWorks® Communication Module:............................................. 7
To replace a MicroTech II™ LonWorks® Communication Module:........................................... 7
INTEGRATION................................................................................................................................ 10
NETWORK CONNECTION ..................................................................................................................10
Network Topology....................................................................................................................... 10
Free Topology Networks ........................................................................................................................ 10
Free Topology Restrictions..................................................................................................................... 11
Doubly-Terminated Networks ................................................................................................................ 11
Doubly-Terminated Topology Restrictions ............................................................................................ 12
Physical Network ........................................................................................................................12
Qualified Cables ..................................................................................................................................... 12
Network Cable Termination........................................................................................................12
ADDRESSING AND ESTABLISHING COMMUNICATION ....................................................................... 13
LonWorks® Network Addressing................................................................................................ 13
COMMISSIONING THE NETWORK ...................................................................................................... 13
EXTERNAL INTERFACE FILE (XIF)................................................................................................... 13
CONFIGURING THE UNIT CONTROLLER ............................................................................................ 13
SERVICE INFORMATION ............................................................................................................ 14
TEST PROCEDURES........................................................................................................................... 14
REPLACEABLE PARTS LIST .............................................................................................................. 14
Network Connection Plug ........................................................................................................... 14
Generic Replacement Parts ..................................................................................................................... 14
Direct Replacement Parts........................................................................................................................ 14
Kit................................................................................................................................................ 14
Figures
Figure 1. MicroTech II™ LonWorks® communication module.......................................................... 5
Figure 2. MicroTech II™ LonWorks® communication module major components............................ 5
Figure 3. How to mount a LonWorks® communication module on a Unit Controller board .............. 8
Figure 4. Mounting the LonWorks® communication module.............................................................. 8
Figure 5. LonWorks® field wiring ....................................................................................................... 9
Figure 6. Singly-terminated free topology networks .......................................................................... 10
Figure 7. Combining network segments with a repeater..................................................................... 11
Figure 8. Doubly-terminated network topology ................................................................................. 11
2 IM 729-0
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.
Revision History
IM729-0 8/1/01 Initial release
Reference Documents
Number Source Title
OM748
OM749
OM750
OM751
OM752
OM753
OM754
OM755
OM756
OM757
OM758
ED 15069
ED 15065
IM731
IM747
078-0156-01G
8500_10
078-0120-01E
078-0014-01E
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.McQuay.com
www.lonmark.org
www.lonmark.org
www.lonmark.org
www.lonmark.org
Air Source Heat Pump with Electric Heat (Software Model 00)
Water Source Heat Pump with Electric Heat (Software Model 02)
Water Source Heat Pump without Electric Heat (Software Model 03)
DX Cooling with Electric Heat (Software Model 04)
DX Cooling Only (Software Model 05)
Electric Heat Only (Software Model 06)
DX Cooling with Wet Heat - Valve Control (Software Model 07)
DX Cooling with Wet Heat - F&BP Damper Control (Software Model 08)
2-pipe Wet Heat Only - Valve Control (Software Model 09)
2-pipe Wet Heat Only - F&BP Damper Control (Software Model 10)
2-pipe Heat/Cool - Valve Control (Software Model 11)
2-pipe Heat/Cool - F&BP Damper Control (Software Model 12)
4-pipe Heat/Cool - Valve Control (Software Model 13)
4-pipe Heat/Cool - F&BP Damper Control (Software Model 14)
2-pipe Cooling Only - Valve Control (Software Model 15)
2-pipe Cooling Only - F&BP Damper Control (Software Model 16)
2-pipe Cooling with Electric Heat - Valve Control (Software Model 17)
2-pipe Cooling with Electric Heat - F&BP Damper Control (Software Model 18)
MicroTech II™ Unit Ventilator Unit Controller
Protocol Implementation Conformance Statement
MicroTech II™ AAF®-HermanNelson® Unit Ventilator Unit Controller Protocol Information
MicroTech II™ AAF®HermanNelson® Unit Ventilator Controller BACnet® Communication
Modules
MicroTech II™ Unit Ventilator Unit Controls Installation Manual
LonWorks® FTT-10A Free Topology Transceiver Users Guide
LonMark Functional Profile: Space Comfort Controller, Version 1.0
LonMark Application Layer Interoperability Guidelines, Version 3.2
LonMark Layers 1-6 Interoperability Guidelines, Version 3.0
Notice
Copyright © 2002 McQuay International, Minneapolis MN All rights reserved throughout the world..
™ The following are trademarks or registered trademarks of their respective companies: LonWorks from Echelon Corporation,
Protocol Selectability, MicroTech II, and AAF-HermanNelson from McQuay International.
IM 729-0 3
General Information
Use this manual to physically install the communication module onto the Unit Ventilator Unit
Controller board and to make the wiring connections to your network. You also need the appropriate
McQuay Engineering Data Sheet known as the Protocol Information to integrate the unit into your
network. The Protocol Information contains addressing details, 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 Information manuals. These documents are available from
your local McQuay International representative and for downloading at the McQuay International
web site: www.mcquay.com.
Electric shock hazard. Can cause personal injury or equipment damage.
This equipment must be properly grounded. Only personnel that are knowledgeable in the
operation of the equipment being controlled must perform connections and service to the
MicroTech II™ control panel.
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.
! WARNING
!
CAUTION
Description
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
communication. 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. McQuay International disclaims any liability resulting from any interference or
for the correction thereof.
A MicroTech II™ LonWorks® communication 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. The
MicroTech II™ LonWorks® board for Unit Ventilators uses the LonMark Space Comfort Control
(SCC) Functional Profile. Profiles are interpreted in loaded programs (firmware).
Each MicroTech II™ LonWorks® communication module is a printed circuit board that plugs onto
the MicroTech II™ Unit Controller board. Figure 1 is an outline drawing of that board.
4 IM 729-0
Application
Figure 1. MicroTech II™ LonWorks® communication module
A MicroTech II™ LonWorks® communication 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® communication module translates the LonTalk® variables to the Unit Controller.
Refer to the appropriate Unit Operation manual for keypad details. See Reference Documents for
part numbers.
Component Data
Figure 2 shows the location of the major components of the MicroTech II™ LonWorks®
communication module.
Figure 2. MicroTech II™ LonWorks® communication module major components
IM 729-0 5