TABLE OF CONTENTS
1 SAFETY CONSIDERATIONS ....................................................................................................................................... 4
1.1 General ................................................................................................................................................................. 4
1.2 Before switching the unit ....................................................................................................................................... 4
1.3 Avoid electrocution ................................................................................................................................................ 4
2 GENERAL DESCRIPTION ............................................................................................................................................ 5
2.1 Basic Information .................................................................................................................................................. 5
2.2 Abbreviations used ................................................................................................................................................ 5
2.3 Controller Operating Limits.................................................................................................................................... 5
2.4 Controller Architecture .......................................................................................................................................... 5
2.5 Communication Modules ....................................................................................................................................... 6
3 USING THE CONTROLLER ......................................................................................................................................... 6
3.1 Navigating ............................................................................................................................................................. 6
3.2 Passwords............................................................................................................................................................. 6
3.3 Editing ................................................................................................................................................................... 7
3.4 Basic Control System Diagnostic .......................................................................................................................... 7
3.5 Controller maintenance ......................................................................................................................................... 8
3.6 Optional Remote User Interface ............................................................................................................................ 8
3.7 Embedded Web Interface ..................................................................................................................................... 8
4 WORKING WITH THIS UNIT ...................................................................................................................................... 10
4.1 Chiller On/Off ...................................................................................................................................................... 10
4.1.1 Keypad On/Off ............................................................................................................................................ 10
4.1.2 Scheduler and Silent mode functionalities .................................................................................................. 11
Silent mode function can be enabled only in unit equipped with VFD fans............................................................... 12
4.1.3 Network On/Off ........................................................................................................................................... 12
4.2 Water Setpoints ................................................................................................................................................... 12
4.3 Unit Mode ............................................................................................................................................................ 13
4.3.1 Energy Saving mode .................................................................................................................................. 14
4.4 Unit Status........................................................................................................................................................... 14
4.5 Network Control .................................................................................................................................................. 15
4.6 Thermostatic Control ........................................................................................................................................... 15
4.7 Date/Time............................................................................................................................................................ 16
4.8 Pumps ................................................................................................................................................................. 17
4.9 External Alarm ..................................................................................................................................................... 17
4.10 Power Conservation ............................................................................................................................................ 18
4.10.1 Demand Limit.............................................................................................................................................. 18
4.10.2 Setpoint Reset ............................................................................................................................................ 19
4.10.2.1 Setpoint Reset by OAT (A/C units only) ............................................................................................. 20
4.10.2.2 Setpoint Reset by External 4-20Ma signal ......................................................................................... 20
4.10.2.3 Setpoint Reset by DT ......................................................................................................................... 21
4.11 Electrical Data ..................................................................................................................................................... 22
4.12 Controller IP Setup .............................................................................................................................................. 23
4.13 Daikin On Site ..................................................................................................................................................... 24
4.14 Heat Recovery .................................................................................................................................................... 24
5 ALARMS AND TROUBLESHOOTING ....................................................................................................................... 26
5.1 Unit Alerts............................................................................................................................................................ 26
5.1.1 BadLWTReset - Bad Leaving Water Temperature Reset Input .................................................................. 26
5.1.2 EnergyMeterComm - Energy Meter Communication Fail ........................................................................... 26
5.1.3 EvapPump1Fault - Evaporator Pump #1 Failure ........................................................................................ 26
5.1.4 EvapPump2Fault - Evaporator Pump #2 Failure ........................................................................................ 27
5.1.5 ExternalEvent - External Event ................................................................................................................... 27
5.1.6 HeatRec EntWTempSen - Heat Recovery Entering Water Temperature sensor fault (A/C units only)....... 27
5.1.7 HeatRec LvgWTempSen - Heat Recovery Leaving Water Temperature sensor fault (A/C units only) ....... 28
5.1.8 HeatRec FreezeAlm - Heat Recovery Water Freeze Protect alarm (A/C units only) .................................. 28
5.1.9 Option1BoardComm – Optional board 1 communication fail (A/C units only) ............................................. 28
5.1.10 Option2BoardComm – Optional board 2 communication fail ...................................................................... 28
5.2 Unit Pumpdown Alarms ....................................................................................................................................... 29
5.2.1 UnitOff EvpEntWTempSen - Evaporator Entering Water Temperature (EWT) sensor fault ....................... 29
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