Daikin EWAH990TZSRC2 Handleiding

Daikin Hardwarekoeling EWAH990TZSRC2

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Air cooled chiller with

inverter driven screw compressor

MICROTECH CONTROLLER

REV

Date

10-2024

Supersedes

D-EOMAC01905-23_00EN

CONTROL PANEL OPERATING MANUAL

D-EOMAC01905-23_01EN

Public

D-EOMAC01905-23_01EN- 2/78 
TABLE OF CONTENTS 
SAFETY CONSIDERATIONS ....................................................................................................................................... 6 
1  General ................................................................................................................................................................. 6 
2  Before switching the unit ....................................................................................................................................... 6 
3  Avoid electrocution ................................................................................................................................................ 6 
GENERAL DESCRIPTION ............................................................................................................................................ 7 
1  Basic Information .................................................................................................................................................. 7 
2  Abbreviations used ................................................................................................................................................ 7 
3  Controller Operating Limits.................................................................................................................................... 7 
4  Controller Architecture .......................................................................................................................................... 7 
5  Communication Modules ....................................................................................................................................... 8 
USING THE CONTROLLER ......................................................................................................................................... 9 
1  Navigating ............................................................................................................................................................. 9 
2  Passwords........................................................................................................................................................... 10 
3  Editing ................................................................................................................................................................. 10 
4  Mobile app HMI ................................................................................................................................................... 10 
5  Basic Control System Diagnostic ........................................................................................................................ 11 
6  Controller maintenance ....................................................................................................................................... 12 
7  Optional Remote User Interface .......................................................................................................................... 12 
8  Embedded Web Interface ................................................................................................................................... 13 
WORKING WITH THIS UNIT ...................................................................................................................................... 14 
1  Chiller On/Off ...................................................................................................................................................... 14 
1.1  Keypad On/Off ............................................................................................................................................ 14 
1.2  Scheduler and Silent mode functionalities .................................................................................................. 15 
1.3  Network On/Off ........................................................................................................................................... 15 
2  Water Setpoints ................................................................................................................................................... 15 
3  Unit Mode ............................................................................................................................................................ 17 
3.1  Energy Saving mode .................................................................................................................................. 17 
4  Unit Status........................................................................................................................................................... 18 
5  Network Control .................................................................................................................................................. 19 
6  Thermostatic Control ........................................................................................................................................... 20 
7  Date/Time............................................................................................................................................................ 21 
8  Pumps ................................................................................................................................................................. 22 
9  External Alarm ..................................................................................................................................................... 22 
10  Power Conservation ............................................................................................................................................ 23 
10.1  Demand Limit.............................................................................................................................................. 23 
10.2  Current Limit ............................................................................................................................................... 25 
10.3  Setpoint Reset ............................................................................................................................................ 25 
10.3.1  Setpoint Reset by OAT ....................................................................................................................... 26 
10.3.2  Setpoint Reset by External 4-20 mA signal ........................................................................................ 26 
10.3.3  Setpoint Reset by Return ................................................................................................................... 26 
10.4  Softload ...................................................................................................................................................... 27 
11  Electrical Data ..................................................................................................................................................... 28 
12  Controller IP Setup .............................................................................................................................................. 29 
13  Daikin On Site ..................................................................................................................................................... 30 
14  Heat Recovery .................................................................................................................................................... 30 
15  Rapid Restart ...................................................................................................................................................... 31 
16  FreeCooling Hydronic (Cooling Only) .................................................................................................................. 32 
16.1  Glycol Free Freecoling ................................................................................................................................ 32 
17  Antifreeze Heater ................................................................................................................................................ 33 
18  Glycol Tank Heater ............................................................................................................................................. 33 
19  Harmonic Filter (SAF) ......................................................................................................................................... 34 
20  Software Options ................................................................................................................................................. 35 
20.1  Changing the Password for buying new Software Options ......................................................................... 36 