Daikin DWSC - Vintage C Operating Manual Download Page 1

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WATER COOLED CENTRIFUGAL CHILLERS

•

DWSC Vintage C

•

DWDC Vintage C

REV

Date

08/2022

Supersedes

D-EOMWC00803-6_00EN

Operating Manual

D-EOMWC00803-26_01EN

Summary of Contents for DWSC - Vintage C

Page 1: ...WATER COOLED CENTRIFUGAL CHILLERS DWSC Vintage C DWDC Vintage C REV 01 Date 08 2022 Supersedes D EOMWC00803 6_00EN Operating Manual D EOMWC00803 26_01EN...

Page 2: ...n Menu 12 4 2 View Set Unit 12 Thermostat Ctrl 13 Network Ctrl 13 Pumps 13 Condenser 13 Evaporator 14 Master Slave 14 4 2 6 1 Data 14 4 2 6 2 Options 15 4 2 6 3 Thermostat Ctrl 15 4 2 6 4 Timers 15 4...

Page 3: ...5 1 4 4 Setpoint Reset by External 4 20 mA Signal 30 5 1 4 5 Setpoint Reset by Evaporator Return Temperature 30 5 1 4 6 Soft Load 31 Scheduler 31 5 2 Unit Start up 31 Unit Status 31 Prepare the unit t...

Page 4: ...n the controller The emergency stop causes all motors to stop but does not switch off power to the unit Do not service or operate on the unit without having switched off the main switch 1 2 Before swi...

Page 5: ...e refrigeration circuits are called circuit 1 and circuit 2 The compressor in circuit 1 is labelled Cmp1 The other in circuit 2 is labelled Cmp2 The following abbreviations are used CEWT Condenser Ent...

Page 6: ...ll boards can be also supplied by a 24Vdc source CAUTION Maintain the correct polarity when connecting the power supply to the boards otherwise the peripheral bus communication will not operate and th...

Page 7: ...ripheral bus with the UC The UC continuously manages the information received from the various pressure and temperature probes installed on the unit The UC incorporates a program that controls the uni...

Page 8: ...O f f U n i t S W A c t i v e S e t p t 7 0 C The active item is highlighted in contrast in this example the item highlighted in Main Menu is a link to another page By pressing the push n roll the HMI...

Page 9: ...ED Mode Solid Green BSP running Solid Green Communication running I O working Solid Red Hardware Error Solid Red Communication down Flashing Red BSP Error Solid Yellow Communication running but parame...

Page 10: ...ting diode located below the bell button The Remote can be ordered with the unit and shipped loose as a field installed option It can also be ordered any time after chiller shipment and mounted and wi...

Page 11: ...Enter the following credential to get access to the web interface User Name ADMIN Password SBTAdmin The Main Menu page will be displayed The page is a copy of the onboard HMI and follows the same rule...

Page 12: ...age Evaporator LWT 273 1 C Evaporator leaving water temperature link to Temperatures page Condenser LWT 273 1 C Condenser leaving water temperature link to Temperatures page W C units only Unit Capaci...

Page 13: ...nt Sub Menu Default Range Description Evp Pmp Ctrl 1 Only 1 Only 2 Only Auto 1 Primary 2 Primary Set number of Evaporator pumps operational and which priority Evap Recirc Tm 30s 0 300s Water recircula...

Page 14: ...ink is available only on the Master unit Timers Submenu Timers This link is available only on the Master unit Standby Chiller Submenu Standby Chiller This link is available only on the Master unit Dis...

Page 15: ...sible only if the parameter M S Num Of Unit has been configured at least with value 4 Master Enable Enable Enable Disable This parameter allows to enable or disable locally the Master Chiller Control...

Page 16: ...ed in the alarm log and to enable and disable the Quiet Mode Additionally it s also possible to set the starting and ending date for the DayLight Saving time DLS if used Quiet Mode is a feature that i...

Page 17: ...ad Setpoint Reset Submenu for Setpoint Reset 4 2 10 1 Demand Limit Setpoint Sub Menu Default Range Description Demand Lim En Disable Disable Enable Demand Limit Enable Demand Limit 100 0 Demand Limit...

Page 18: ...munication is established only if this parameter displays Connected Cntrlr ID Controller ID This parameter is helpful to identify the specific controller in DoS Remote Update Disable Disable Enable Al...

Page 19: ...and repeat the steps in chapter 4 2 13 1 If there is no enough time to ask for a Password to Daikin Personnel ex an expected failure of the controller a set of Free Limited Password is provided in ord...

Page 20: ...otocol settings page can be accessed via the path Main Menu Commission Unit SW Modbus MSTP The values that can be set are the same as those found on the Modbus MSTP option page with the relative drive...

Page 21: ...ettings page can be accessed via the path Main Menu Commission Unit SW BACNet MSTP The values that can be set are the same as those found on the BACNet MSTP option page with the relative driver and de...

Page 22: ...via the path Main Menu Commission Unit SW BACNet IP The values that can be set are the same as those found on the BACNet MSTP option page with the relative driver and depend on the specific system whe...

Page 23: ...jumps to the page Temperatures This page resumes all the relevant water temperatures Setpoint Sub Menu Default Range Description Evap LWT 273 1 C Controlled water temperature Evap EWT 273 1 C Return w...

Page 24: ...d 4 9 Timers This page indicates the remaining cycle timers for each circuit and the remaining staging timers When the cycle timers are active any new start of a compressor is inhibited Setpoint Sub M...

Page 25: ...NA 27 0 310 0 Low pressure alarm prevention TZ with R1234ze Evap Water Frz 2 2 C 2 0 6 0 C Evaporator Water Freeze Limit Cond Water Frz 2 2 C 2 0 6 0 C Condenser Water Freeze Limit Flow Proof Time 15...

Page 26: ...il Feed Pressure offset Oil Sump Pres Oil Sump e Pressure current reading includes the offset Oil Sump P Offset 0 0kPa Oil Sump Pressure offset Calibrations of the Evaporator Pressure and Suction Temp...

Page 27: ...de is required This setting implies an operation with double setpoint which is activated through a customer supplied switch according to the following logic Switch OFF The chiller will work in cooling...

Page 28: ...each setpoint Operating Mode Units Double Setpoint Input Scheduler LWT Setpoint Default Range Cool W C OFF Off On Setpoint 1 Cool LWT 1 7 0 C 4 0 C 15 0 C ON On Setpoint 2 Cool LWT 2 7 0 C 4 0 C 15 0...

Page 29: ...up 2 Primary Set to this in case of twin pump with 2 running and 1 as a backup Power Conservation 5 1 4 1 Demand Limit Demand limit function allows the unit to be limited to a specified maximum load C...

Page 30: ...Max Setpoint Reset valid for all active modes Start Reset DT Used on Setpoint Reset by Evaporator DT 5 1 4 4 Setpoint Reset by External 4 20 mA Signal The active setpoint is calculated applying a corr...

Page 31: ...e BAS company how to start the unit Master Disable Unit is disabled by the Master Slave function Scheduler Disabled Unit is disabled by the time scheduler Unit Alarm A unit alarm is active Check the a...

Page 32: ...ependently from the status of the individual enable switches 5 2 2 2 Keypad Enable The Keypad enable setpoint is not accessible by user password level If it is set to Disable contact your local mainte...

Page 33: ...ur 1 Vfd by mean of a modulating 0 10V signal generated through a PID controller The following graph is an example of the modulating signal behavior in case of a PID control supposed to be purely prop...

Page 34: ...at the monitor is connected to the PLC via Ethernet cable so that the PLC data is displayed correctly It allows the unit s operating parameters to be set and the data to be displayed At the top of the...

Page 35: ...s the main information of the unit such as 1 Condenser Leaving Water Temperature 2 Condenser Entering Water Temperature 3 Evaporator Leaving Water Temperature 4 Evaporator Entering Water Temperature I...

Page 36: ...ate the Touchscreen 6 Select the logging 7 Update the software version when a new release is available In addition the system device and the USB device if present storages are shown It is possible to...

Page 37: ...ssible to track a maximum of 4 datapoints for each graph chart There are four customizable graph charts Two options are available to change the time range of the trend 1 20 minutes 2 1 hour To add a d...

Page 38: ...ion integrates the current limit function which allows the unit to limit its capacity in order not to exceed a pre defined current setpoint This setpoint can be set in the unit display or can be chang...

Page 39: ...t of its knowledge No express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services presented therein Sp...

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