Table of Contents
Advertisement
Quick Links
Installation and Maintenance Manual
MicroTech II
TM
Applied Rooftop Unit Controller and
Self-Contained Unit Controller
LonWorks® Communication Module
•<Space Comfort Controller (SCC) Module
•<Discharge Air Controller (DAC) Module
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
NOTICE
IM 702-3
Group: Controls
Part Number: IM 702-3
Date: November 2004
Supersedes: IM 702-2
Advertisement
Table of Contents
Related Manuals for McQuay IM 702-3
Summary of Contents for McQuay IM 702-3
- Page 1 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®...
-
Page 2: Table Of Contents
Table of Contents Reference Documents ................................3 General Information ................................4 Description ....................................4 Application ....................................5 Component Data ..................................5 Service Pin ....................................5 Specifications ....................................6 Installation ....................................7 Mounting ....................................7 Mounting a New MicroTech II LonWorks Communications Module ..................7 Replacing a MicroTech II LonWorks Communications Module ....................7 Integration ........ -
Page 3: Reference Documents
© 2004 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. -
Page 4: General Information
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. -
Page 5: Application
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. -
Page 6: Specifications
Light Emitting Diodes (LEDs) The communications module has three LEDs to indicate communication activity and status of the communication module Function • Lights when the service pin is pressed • Lights when there is a problem with the module • On Steady during normal operation •... -
Page 7: Installation
Installation The MicroTech II LonWorks Communications Module can be installed in the field or it can be installed in the factory. The module mounts on connector pins and is held in place with four plastic locking standoffs. A cable harness connects the MicroTech II LonWorks Communications Module to field wiring terminals and the LonWorks network at a terminal block in the unit cabinet assembly. - Page 8 9. Push the board onto the connector pins and standoffs until you hear the faint click of the locking standoffs securing the module in place. 10.Connect the MicroTech II LonWorks Communications Module to the network. a. Replace the network plug in P8. See Figure 3. 11.Reconnect the network to TB 2 terminals 128 and 129 if it is necessary.
- Page 9 Figure 5. LonWorks Network Connection Schematic Diagram Main Control Unit Board Terminal (MCB) Block LonWorks Communications Module LonWorks Network Figure 6. Mount LonWorks Communications Module 12-Pin Header Communications Module Locking Standoff IM702-3...
- Page 10 Figure 7. Cable Harness Routing - Applied Rooftop Unit LonWorks Controller Communications Comunications Module Cable Shelf Network Cable Cable Raceway Terminal Block TB2 IM702-3...
- Page 11 Figure 8. Cable Harness Routing - Self-Contained Unit Controller Terminal Block TB2 LonWorks Communications Comunications Module Network Cable Harness IM702-3...
-
Page 12: Integration
Integration Integrating the MicroTech II LonWorks Communications Module into a BAS involves three steps: connecting the MicroTech II Unit Controller (node) to the network, addressing and establishing communications with the unit controller, and configuring the unit controller to the building. Network Connection After you have installed the MicroTech II Main Control Unit with the MicroTech II LonWorks Communications Module attached, you must connect MicroTech II Unit Controller into the LonWorks network. -
Page 13: Free Topology Restrictions
A network segment is any part of the free topology network in which each conductor is electrically continuous. Each of the four diagrams in Figure 9 is an illustration of a network segment. Some applications may require two or more segments (see Free Topology Restrictions section). -
Page 14: Doubly Terminated Topology Restrictions
Doubly Terminated Topology Restrictions The restrictions on doubly-terminated bus topology are as follows: The maximum number of nodes per segment is 64. The maximum total bus length depends on the wire size (see Qualified Cables for details) Wire Size Maximum Cable Length 24 AWG 2952 ft (900 m) 22 AWG... -
Page 15: Commissioning The Network
BACnet module is removed and a LONWORKS module is installed in the field, refer to the table to determine whether or not changes are required to communication setup parameters. Note: The PC based McQuay MicroTech II ServiceTools is required to modify these parameters. IM702-3... -
Page 16: Service Information
Table 1. Factory Communication Setup Parameter Settings Parameter Name BACnet IP BACnet MSTP LON (DAC or SCC) No Communication Module lPAddress 172.16.83.46 172.16.83.46 172.16.83.46 172.16.83.46 IP Subnet Mask 255.255.0.0 255.255.0.0 255.255.0.0 255.255.0.0 UDP Port Number 47808 47808 47808 47808 IP Router Address 172.16128.0 172.16.128.0 172.16.128.0... -
Page 17: Kits And Wire Harness
Replacement Parts When writing to McQuay for service or replacement parts, refer to the model number and serial number of the unit as stamped on the serial plate attached to the unit. If replacement parts are required, mention the date of installation of the unit and date of failure, along with an explanation of the malfunctions and a description of the replacement parts required. - Page 18 This document contains the most current product information as of this printing. For the most current product information, please go to www.mcquay.com. © 2004 McQuay International • www.mcquay.com • 800-432-1342 IM702-3...
Need help?
Do you have a question about the IM 702-3 and is the answer not in the manual?
Questions and answers