Daikin McQuay WGZ030DW - Table of Contents

2 OMM 1130
Table of Contents
Introduction .......................................3
General Description .............................. 3
Nomenclature........................................ 3
Water Pressure Drop ............................. 3
Components .......................................... 6
Unit Configuration ............................7
Field Wiring Diagrams.......................... 8
Control Panel Layout .......................... 10
Motor Protection Module.................... 10
Start-Up and Shutdown................... 11
Sequence of Operation ....................14
Start-up/Compressor Staging .............. 14
MicroTech II Controller..................18
Controller Software Version................ 18
General Description ............................ 18
Expansion I/O Controller.................... 21
Setpoints.............................................. 22
Automatic Adjusted Limits ................. 24
Dynamic Defaults ............................... 25
Events & Alarms..............................25
Unit Stop Alarms................................. 25
Limit Events........................................ 29
Controller Operation.......................32
EXV Control ....................................... 51
Using the Controller........................ 52
Menu Screens...................................... 53
Menu Descriptions .............................. 54
BAS Interface .................................. 73
Parameter Details ................................ 74
Optional Controls............................ 77
Phase/Voltage Monitor (Optional) ...... 77
Hot Gas Bypass (Optional) ................. 77
System Maintenance ....................... 78
General................................................ 78
Electrical Terminals............................. 78
POE Lubrication ................................. 78
Sightglass and Moisture Indicator....... 79
Crankcase Heaters............................... 79
Maintenance Schedule ........................ 80
System Service................................. 81
Troubleshooting Chart ........................ 83
Warranty Statement........................ 84
Products manufactured in an ISO Certified facility
©2012 McQuay International. Illustrations and data cover the McQuay International product at the time of publication and we
reserve the right to make changes in design and construction at anytime without notice.
™® The following are trademarks or registered trademarks of their respective companies: BACnet from ASHRAE;
LONMARK,
LonTalk, L
ONWORKS, and the LONMARK logo are managed, granted and used by LONMARK International under a license granted
by Echelon Corporation; Compliant Scroll from Copeland Corporation; Modbus from Schneider Electric;, MicroTech II, Open
Choices from McQuay International.
Cover Picture: WGZ130DW without suction line insulation installe
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for clarit
y