Daikin EWFT250B Bruksanvisning

Daikin kylsystem för dator EWFT250B

Läs gratis den bruksanvisning för Daikin EWFT250B (63 sidor) i kategorin kylsystem för dator. Guiden har ansetts hjälpsam av 2 personer och har ett genomsnittsbetyg på 4.6 stjärnor baserat på 1.5 recensioner. Har du en fråga om Daikin EWFT250B eller vill du ställa frågor till andra användare av produkten? Ställ en fråga

Ladda ner PDF

Sida 1/63

Air Cooled chiller with scroll compressors

EWAT-B-C

EWFT-B-C

REV

Date

05-2025

Supersedes

D-EOMAC01801-23_04EN

Operating Manual

D-EOMAC01801-23_05EN

Public

D-EOMAC01801-23_05EN- 2/63 
TABLE OF CONTENTS 
SAFETY CONSIDERATIONS ....................................................................................................................................... 5 
1  General ................................................................................................................................................................. 5 
2  Before switching the unit ....................................................................................................................................... 5 
3  Avoid electrocution ................................................................................................................................................ 5 
GENERAL DESCRIPTION ............................................................................................................................................ 6 
1  Basic Information .................................................................................................................................................. 6 
2  Abbreviations used ................................................................................................................................................ 6 
3  Controller Operating Limits.................................................................................................................................... 6 
4  Controller Architecture .......................................................................................................................................... 6 
5  Communication Modules ....................................................................................................................................... 7 
USING THE CONTROLLER ......................................................................................................................................... 8 
1  Navigating ............................................................................................................................................................. 8 
2  Passwords............................................................................................................................................................. 8 
3  Editing ................................................................................................................................................................... 9 
4  Mobile app HMI ..................................................................................................................................................... 9 
5  Basic Control System Diagnostic ........................................................................................................................ 10 
6  Controller maintenance ....................................................................................................................................... 11 
7  Optional Remote User Interface .......................................................................................................................... 11 
8  Embedded Web Interface ................................................................................................................................... 12 
WORKING WITH THIS UNIT ...................................................................................................................................... 13 
1  Chiller On/Off ...................................................................................................................................................... 13 
1.1  Keypad On/Off ............................................................................................................................................ 13 
1.2  Scheduler and Silent mode functionalities .................................................................................................. 14 
1.3  Network On/Off ........................................................................................................................................... 14 
2  Water Setpoints ................................................................................................................................................... 15 
3  Unit Mode ............................................................................................................................................................ 16 
3.1  Heat/Cool Switch (Heat Pump Only) ........................................................................................................... 17 
3.2  Energy Saving mode .................................................................................................................................. 17 
4  Unit Status........................................................................................................................................................... 17 
5  Network Control .................................................................................................................................................. 18 
6  Thermostatic Control ........................................................................................................................................... 19 
7  Date/Time............................................................................................................................................................ 20 
8  Pumps ................................................................................................................................................................. 20 
9  External Alarm ..................................................................................................................................................... 21 
10  Power Conservation ............................................................................................................................................ 21 
10.1  Demand Limit.............................................................................................................................................. 22 
10.2  Setpoint Reset ............................................................................................................................................ 23 
10.2.1  Setpoint Reset by OAT (A/C units only) ............................................................................................. 24 
10.2.2  Setpoint Reset by External 4-20Ma signal ......................................................................................... 25 
10.2.3  Setpoint Reset by DT ......................................................................................................................... 25 
11  Electrical Data ..................................................................................................................................................... 26 
12  Controller IP Setup .............................................................................................................................................. 27 
13  Daikin On Site ..................................................................................................................................................... 28 
14  Heat Recovery .................................................................................................................................................... 29 
15  Rapid Restart ...................................................................................................................................................... 29 
16  FreeCooling Hydronic (Cooling Only) .................................................................................................................. 30 
16.1  Glycol Free Freecoling ................................................................................................................................ 31 
17  Antifreeze Heater ................................................................................................................................................ 32 
18  Glycol Tank Heater ............................................................................................................................................. 32 
19  Software Options ................................................................................................................................................. 33 
19.1  Changing the Password for buying new Software Options ......................................................................... 33 
19.2  Inserting the Password in a Spare Controller.............................................................................................. 33 
19.3  Modbus MSTP Software Option ................................................................................................................. 34 
19.4  BACNET MSTP .......................................................................................................................................... 35 
19.5  BACNET IP ................................................................................................................................................. 36 
19.6  Performance Monitoring ............................................................................................................................. 36 
ALARMS AND TROUBLESHOOTING ....................................................................................................................... 38 
1  Unit Alerts............................................................................................................................................................ 38 
1.1  BadLWTReset - Bad Leaving Water Temperature Reset Input .................................................................. 38 
1.2  EnergyMeterComm - Energy Meter Communication Fail ........................................................................... 38 
1.3  EvapPump1Fault - Evaporator Pump #1 Failure ........................................................................................ 39 
1.4  BadDemandLimit - Bad Demand Limit Input ............................................................................................... 39 
1.5  EvapPump2Fault - Evaporator Pump #2 Failure ........................................................................................ 39 