McQuay IM 702-3 Installation And Maintenance Manual Download Page 4

IM702-3

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General Information

This manual contains the information you need to install the communication modules and incorporate it into the network,
and maintain it.

!

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 who are 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. McQuay International disclaims any liability resulting
from any interference or for the correction thereof.

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. Two versions are available: one in accordance with the LonMark Space Comfort Control
(SCC) Functional Profile and one in accordance with the LonMark Discharge Air Control (DAC) Functional Profile.

Profiles are interpreted in loaded programs (firmware). Each profile is interpreted in a separate MicroTech II LonWorks
Communications Module. This manual covers both.

Each MicroTech II LonWorks Communications Module is a printed circuit board that plugs onto the MicroTech II Main

Control Board. Figure 1 is an outline drawing with dimensions of a printed circuit board.

Figure 1. MicroTech II LonWorks Communications Module

0.250

6.750

0.250

3.750

Summary of Contents for IM 702-3

Page 1: ...s 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 Pr...

Page 2: ...7 Integration 12 Network Connection 12 Network Topology 12 Free Topology Networks 12 Free Topology Restrictions 13 Doubly Terminated Networks 13 Doubly Terminated Topology Restrictions 14 Addressing a...

Page 3: ...MicroTech II Vertical Self Contained Unit Controller Installation Manual OM711 McQuay International MicroTech II Vertical Self Contained Discharge Air Controller Operation Manual OM712 McQuay Internat...

Page 4: ...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 c...

Page 5: ...ce Documents for part numbers Figure 2 Building Automation System MicroTech II Main Control Board MicroTech II LonWorks Communications Module MicroTech II Keypad LonWorks Interface Adapter LonWorks Wo...

Page 6: ...Standard Network Variable Types SNVTs and Standard Network Configuration Parameters SCPTs in accordance with the LonMark profiles used on the LonWorks network into the variables and parameters used in...

Page 7: ...able harness down to the shelf below the controller and to the left along the shelf to the edge Route the cable through a hole down the raceway to Terminal Block TB2 c Connect the cable harness white...

Page 8: ...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 Figure...

Page 9: ...nection Schematic Diagram 522 523 LonWorks Communications Module Main Control Board MCB Unit Terminal Block Tb2 128 129 LonWorks Network A B Figure 6 Mount LonWorks Communications Module 12 Pin Header...

Page 10: ...10 IM702 3 Figure 7 Cable Harness Routing Applied Rooftop Unit LonWorks Comunications Module Controller Cable Shelf Cable Raceway Terminal Block TB2 Network Cable Communications...

Page 11: ...IM702 3 11 Figure 8 Cable Harness Routing Self Contained Unit Controller LonWorks Comunications Module Terminal Block TB2 Network Cable Harness Communications...

Page 12: ...s Additional nodes may be added with little regard to existing cable routing Free Topology Networks A LonWorks free topology network means that devices nodes can be connected to the network in a varie...

Page 13: ...ft 450 m 22 AWG 1312 ft 400 m 1640 ft 500 m 16 AWG 1640 ft 500 m 1640 ft 500 m The longest cable path between any possible pair of nodes on a segment must not exceed the maximum node to node distance...

Page 14: ...ld connect two controllers with one continuous piece of cable in order to reduce the risk of com munications errors If you must splice the cable use crimp type butt connectors good or solder best Do n...

Page 15: ...ware and configured at the factory for stand alone unit operation The unit is ready to operate in a stand alone manner with default set point parameters that can be changed with the unit s keypad disp...

Page 16: ...Length parameter should not be set higher than 1024 for BACnet IP or 501 for BACnet MSTP 4 The Xs in Device Object Name are factory set equal to the last nine digits of the 18 digit number on the bar...

Page 17: ...ce personnel of McQuay International in Minneapolis Minnesota 763 553 5330 A Return Goods tag must be included with the returned material Enter the required information to expedite handling and prompt...

Page 18: ...2 3 2004 McQuay International www mcquay com 800 432 1342 This document contains the most current product information as of this printing For the most current product information please go to www mcqu...

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