General Information; Description; Figure 1. Microtech Ii Lonworks Communications Module (Component Side) - McQuay MicroTech II Installation And Maintenance Manual

General Information

This manual contains the information you need to install the MicroTech II LonWorks®
Communication Modules and integrate them into the network.
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.
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. 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)

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WARNING
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CAUTION
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IM 735-0