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Daikin ACZ, Installation And Maintenance Manual

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Installation and Maintenance Manual  IM 743-7

Group: 

Controls

Part Number: 

IM 743

Date: 

June 2022

MicroTech

®

 II Chiller 

Modbus

®

 Communication Module

ACZ 

Air-Cooled Scroll Condensing Unit

AGS 

Air-Cooled Global Screw

AGZ 

Air-Cooled Global Scroll

HDC

Water-Cooled Dual-Compressor Centrifugal, Heat Recovery

HSC

Water-Cooled Single-Compressor Centrifugal, Heat Recovery

TGZ

Templifier

®

 Water Heater

TSC

Water-Cooled Single-Compressor Centrifugal, Templifier

®

WCC

Water-Cooled Centrifugal, Dual Compressor Series Counterflow

WDC 

Water-Cooled Centrifugal, Dual-Compressor

WGS   

Water-Cooled Global Screw

WGZ 

Water-Cooled Global Scroll

WMC

Water-Cooled Centrifugal, Magnetic Bearing

WPV 

Water-Cooled Centrifugal, Single-Compressor

WSC 

Water-Cooled Centrifugal, Single-Compressor

Summary of Contents for ACZ

Page 1: ...fugal Heat Recovery HSC Water Cooled Single Compressor Centrifugal Heat Recovery TGZ Templifier Water Heater TSC Water Cooled Single Compressor Centrifugal Templifier WCC Water Cooled Centrifugal Dual...

Page 2: ...ion Module 8 Network Configuration 9 Set up the Unit for Network Control 9 Network Setup for Centrifugal Chillers 9 Network Setup for all other Chillers 9 Modbus Network Addressing 9 Modbus Network Co...

Page 3: ...uent versions until otherwise indicated However if your software is of a later version some of the information in this document may not completely describe your application Limited Warranty Consult yo...

Page 4: ...s 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 interfere...

Page 5: ...he communication module circuit board the Modbus network connector and 8 pin header which are described in the following section Figure 2 Communication Module Main Features Modbus Network Connector An...

Page 6: ...le with RS 485 network connector attached to module This manual IM 743 Tools Required A small flathead screwdriver or similar tool as shown in Figure 4 Needle nose pliers or similar tool as shown in F...

Page 7: ...you feel the connectors align press the communication module into the plug Verify that the module is firmly connected Figure 8 Step 3 8 Mount the plastic cover on the serial card slot Slip the cover o...

Page 8: ...card slot with the 8 pin plug that mates to the header on the communication module NOTE This operation relies more on fitting the communication module into the connector than seeing the connectors ma...

Page 9: ...ler is operational from the BAS interface Once the BAS protocol has been set proceed to the next section to set network addressing parameters Table 1 Password Menu Screen Model Menu Screen Password AG...

Page 10: ...he baud rate must match the other slave devices on the network Table 2 Network Parameters Parameter Default Range Description Network Address 0 247 Default 1 The Modbus Address i e ID or Ident Number...

Page 11: ...n no T Taps or ring layout Verify that network wiring does not exceed 4000 ft total distance limit without repeaters at 19200 bps baud Verify that polarity is maintained Check that there are end of li...

Page 12: ...ant to its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details To find your local Daikin Applied representati...

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