Daikin IOM 1322-1, Installation, Operation And Maintenance Manual

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IOM 1322-1 • WATER-COOLED SCROLL COMPRESSOR 2 www.DaikinApplied.com
Manufactured in an ISO 9001 & ISO 14001 certified facility
©2022 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to
make changes in design and construction at any time without notice.
Table of Contents
Introduction and Installation . . . . . . . . . . . . . . . . . . . . 5
Chilled Water Piping Guidelines . . . . . . . . . . . . . . . . . 8
Application Considerations . . . . . . . . . . . . . . . . . . . . . 8
Condenser Water Piping . . . . . . . . . . . . . . . . . . . . . . 10
Packaged Unit Refrigerant Piping . . . . . . . . . . . . . . . 11
Relief Valve Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Water Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . 12
Dimensions and Weights - Packaged Units . . . . . . . 16
Isolator Information . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Physical Data - Packaged Units . . . . . . . . . . . . . . . . 23
Electrical Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Control Panel Layout. . . . . . . . . . . . . . . . . . . . . . . . . 28
MicroTech II Controller . . . . . . . . . . . . . . . . . . . . . . . 29
Unit Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Events & Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . 39
Using the Controller . . . . . . . . . . . . . . . . . . . . . . . . . 49
BAS Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Unit Controller Operation . . . . . . . . . . . . . . . . . . . . . 56
Startup and Shutdown Procedures . . . . . . . . . . . . . 61
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . 66
Unit Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . 72
Warranty Registration Form (Scroll) . . . . . . . . . . . . . 73
Limited Product Warranty . . . . . . . . . . . . . . . . . . . . . 79