Daikin EWWP045KAW1M Operation Manual
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Daikin EWWP045KAW1M Operation Manual

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OPERATION MANUAL
Packaged water-cooled water chillers
EWWP045KAW1M
EWWP055KAW1M
EWWP065KAW1M
ECB1MUW
ECB2MUW
ECB3MUW

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Summary of Contents for Daikin EWWP045KAW1M

  • Page 1 OPERATION MANUAL Packaged water-cooled water chillers EWWP045KAW1M EWWP055KAW1M EWWP065KAW1M ECB1MUW ECB2MUW ECB3MUW...

  • Page 2: Table Of Contents

    Water supply ....................5 The units can be combined with Daikin fan coil units or air handling General recommendations ................ 5 units for air conditioning purposes. They can also be used for Operation 16~24Hp................

  • Page 3: Electrical Specifications

    Electrical specifications General Power supply • Phase • Frequency (Hz) • Voltage ±10 ±10 ±10 • Voltage tolerance Unit • Nominal running 20.8 26.6 30.0 41.6 47.0 52.4 56.2 60.0 67.8 73.2 78.6 82.4 86.2 90.0 current • Maximum running current •...

  • Page 4: Function Of The Main Components

    Function of the main components Filter S1HP Compressor S4LP Evaporator Condenser Filter Water Water inlet outlet S2HP Compressor Water Water inlet outlet S5LP S1HP S4LP S2HP S5LP S1HP S4LP S2HP S5LP Figure - Functional diagram As the refrigerant circulates through the unit, changes in its state or Expansion valve condition occur.

  • Page 5: Safety Devices

    Safety devices K1P ....* ..Pumpcontactor K2M......Compressor contactor (M2C) Overcurrent relay K4S ......Overcurrent relay (M1C) The overcurrent relay (K*S) is located in the switch box of the unit and protects the compressor motor in case of overload, K5S ......

  • Page 6: Before Operation

    General recommendations EFORE OPERATION Before switching on the unit, read following recommendations: Checks before initial start-up When the complete installation and all necessary settings have been carried out, close all front panels of the unit. Make sure that the circuit breaker on the power supply The service panels of the switch boxes may only be opened by a panel of the unit is switched off.

  • Page 7: Working With The 16~24Hp Units

    If the unit does not start after a few minutes, consult the actual Temperature readout tolerance: ±1°C. NOTE operational information available in the list of direct parameters. Legibility of the numeric display may decrease in direct Also refer to the chapter "Troubleshooting"...
  • Page 8 To return to normal operation, press the E key or wait Adjusting the heating temperature setpoint approximately 40 seconds. In the first case, the controller immediately leaves the list of In addition to the cooling setpoint, the 16~24Hp units enable direct parameters and returns to normal operation displaying the definition of a temperature setpoints for heating operation.

  • Page 9: Advanced Features Of The Digital Controller

    Resetting warnings Overview of the user parameters During normal operation, the display of the controller may start The list of user parameters is only accessible by means of the user flashing, alternately showing the inlet water temperature and the password. When scrolling through the list of parameters using the A following warning code: and/or Z key, you see the direct parameters and user parameters.
  • Page 10 To save the modifications, press the E key. To cancel the Defining the measurement unit modifications, wait approximately 40 seconds. In the first case, the controller saves the changes, leaves the list Depending on the setting of user parameter :d, all temperature of direct parameters and returns to normal operation, displaying values are displayed in °C or in °F.
  • Page 11 Defining the time delay between unit and pump shutdown Enabling or disabling the buzzer User parameter c8 allows you to define the time delay between the When an alarm is detected, the buzzer is activated for the period unit shutdown and the pump shutdown, more specifically the period defined by user parameter p4.
  • Page 12 To save the modifications, press the E key. To cancel the Selecting local or remote on/off control modifications wait approximately 40 seconds. In the first case, the controller saves the changes, leaves the list User parameter h7 in combination with the remote on/off switch of user parameters and returns to normal operation, displaying (installed by the customer) allows the user to switch the unit on the inlet water temperature.

  • Page 13: Operation 32~72Hp

    32~72H PERATION Switching the unit on The 32~72Hp units are equipped with a built-in digital controller Press the J key on the controller. offering a user-friendly way to set up, use and maintain the unit. Depending on whether or not the remote ON/OFF switch is This part of the manual has a task-oriented, modular structure.
  • Page 14 Press the h key to enter the next screen of the readout menu. In double thermostat operation, two setpoints are reserved for inlet control of the evaporator and two others are reserved for inlet control This screen of the readout menu provides the following of the condenser.

  • Page 15: Advanced Features Of The Digital Controller

    To reset the unit, proceed as follows: To consult information about the COMPRESSOR STATUS C22: OFF-CAN STARTUP Press the p key to acknowledge the alarm. compressor status (second screen). C31 : OFF- SAFETY ACT. The buzzer is deactivated. C32: OFF- LIMIT The controller automatically switches to the corresponding screen of the safeties menu: unit safety or module safety.
  • Page 16 To enter the service menu. (Only a To check which were the total BC ENTER SERVICE UNIT HISTORY : 004 0C9 : INL E SENSOR ERR qualified installer allowed amount of running hours of the com- PASSWORD : 0000 RH11 : 00000h RH21: access this menu.) pressors at the moment of shutdown RH12 : 00000h 00000h...
  • Page 17 Defining the thermostat settings To check the status of the change- CHANG. REL OUTPUTS DO1 REV.VALVE(C/H) : O able relay output. When automatic control mode is selected, the unit uses a thermostat to control the cooling or heating capacity. The maximum number of thermostat steps are as listed: User password menu 32Hp...
  • Page 18 LOADDOWN (DWN – refer to the thermostat parameters): starts Defining dual evaporator pump control counting when a thermostat step change has occurred. During the countdown, the unit will not be able to enter a lower thermo- The DUAL EVAP. PUMP screen of the user settings menu allows the stat step.
  • Page 19 Tasks of the history menu The changeable relay outputs are: REV. VALVE (C/H): indicates whether the unit is running in cooling Checking the safety info and the unit status after a reset or in heating. 2ND EVAP PUMP: indicates the status of the second evaporator The information available in the safeties menu is also stored in the pump.

  • Page 20: Troubleshooting

    Symptom 4: One of the circuits does not start up ROUBLESHOOTING OSSIBLE CAUSES ORRECTIVE ACTION This section provides useful information for diagnosing and correct- One of the following safety devices is Check on the controller and refer to ing certain troubles which may occur in the unit. activated: Symptom 5: One of the following •...

  • Page 21: Maintenance

    Symptom 5.6: Flow switch is activated Before carrying out any maintenance or repair activity, always switch off the circuit breaker on the supply panel, OSSIBLE CAUSES ORRECTIVE ACTION remove the fuses or open the protection devices of the No water flow. Check the water pump.
  • Page 22 32~72H NNEX Thermostat parameters Cooling: Inlet water temperature control of evaporator Heating: Inlet water temperature control of condenser The figures below show the thermostat diagram in case of inlet water temperature control. 2 step thermostat control 2 step thermostat control Stepnumber Stepnumber Temperature...
  • Page 23 32~72H NNEX Schedule timer example MARCH To come to the schedule above following settings have to be made: SCHEDULE TIMER MON : G1 THU : G1 SAT : G3 TUE : G1 FRI : G1 SUN : G3 WED : G2 HD PERIOD : 01 TO 03 01 : 23/03 TO 29/03 02 : 00/00 TO 00/00...
  • Page 24 32~72H III - S NNEX OFTWARE STRUCTURE Actual screens can be different than the shown example (52~72Hp). >READOUT MENU SETPOINTS MENU USERSETTINGS MENU TIMERS MENU HISTORY MENU INFO MENU I/O STATUS MENU USERPASSWORD MENU COOL/HEAT MENU $e COMPRESSOR STATUS $e COMPRESSOR STATUS BX MANUAL MODE EVAPORATOR RUNNING HOURS...
  • Page 25 NOTES NOTES...
  • Page 26 4PW30041-1A Zandvoordestraat 300, B-8400 Oostende, Belgium...

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