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Summary of Contents for Daikin EWAQ080DAYN
- Page 1 OPERATION MANUAL Packaged air-cooled water chillers EWAQ080DAYN EWAQ100DAYN EWAQ130DAYN EWAQ150DAYN EWAQ180DAYN EWAQ210DAYN EWAQ240DAYN EWAQ260DAYN...
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Page 2: Technical Specifications
1/2"G 1/2"G 1/2"G • evaporator drain units can be combined with Daikin fan coil units or air handling units Internal water volume for air conditioning purposes. They can also be used for supplying Expansion vessel (only for water for process cooling. -
Page 3: Electrical Specifications
General EWAQ Dimensions HxWxD 2311x2000x4833 (mm) Weight 3150 3250 (kg) • machine weight (kg) 3189 3292 • operation weight Connections 3" 3" • chilled water inlet and outlet 1/2"G 1/2"G • evaporator drain Internal water volume Expansion vessel (only for OPSP, OPTP and OPHP) •... - Page 4 Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Refrigerant type: R410A value: 1975 GWP = global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information.
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Page 5: Function Of The Main Components
Function of the main components t > M15F M25F M13F M23F M14F M24F Y11E Y21E p > p > B1PH B2PH p > p > S1PH S2PH R14T R34T R17T R37T B1PL B2PL p < p < M11C M12C M22C M21C R15T R25T... -
Page 6: Safety Devices
Evaporator Flowswitch (general safety devices) The main function of the evaporator is to take heat from the The unit is protected by a flowswitch (S1L). water that flows through it. This is done by turning the liquid When the water flow becomes lower than the minimum allowed refrigerant, coming from... -
Page 7: Internal Wiring - Parts Table
Internal wiring - Parts table K15S ...... Fan overcurrent relay for circuit 1 (only for EWAQ080+100 and EWAQ180~260) Refer to the internal wiring diagram supplied with the unit. The K16F ...... Fancontactor for circuit 1 abbreviations used are listed below: (only for EWAQ080+100 and EWAQ240+260) A01P...... -
Page 8: Water Supply
T1V....** ..Voltage transducer (only for option OP57) 10 Air inlet/outlet TR1 ......Transfo control circuit (400 V/230 V) Check that the air inlet and outlet of the unit is not obstructed by paper sheets, cardboard, or any other material. TR1A .... ** ..Current measurement transfo (only for option OP57) 11 Power supply voltage V1C ......Ferrite core... -
Page 9: Operation
PERATION Connection of a remote digital controller to the unit The EWAQ units are equipped with a digital controller (located For a remote digital controller a cable length of up to 500 metres behind the service panel) offering a user-friendly way to set up, use between the remote digital controller and the unit is allowed. - Page 10 Press the Ì key to enter the next screen of the readout menu. Switching the unit off • MANUAL MODE COOL INLSP1 COOL OUTLSP1 manual/automatic control mode operation. If the automatic If no remote on/off switch is configured: control mode is selected, the controller will indicate the active Press the œ...
- Page 11 Press ‡ to save the adjusted temperature setpoint. • STARTUP : the circuit is ready to start up when extra cooling load is needed. When the setting has been confirmed, the cursor switches to the • When none of the above mentioned messages appears, no next setpoint.
- Page 12 Advanced features of the digital controller To consult actual operational informa- _÷ EXTRA READOUT C12RH:00000hCS:00000 tion about the total running hours and This chapter gives an overview and a brief functional description of the number of compressor stops of the screens provided by the different menus. In the following chapter, circuit 1 (second screen).
- Page 13 PUMP Timers menu Ó To define the pump control settings. PUMPCONTROL PUMPLEADTIME :020s To check the actual value of the general GENERAL TIMERS PUMPLAGTIME :060s LOADUP:000s-DWN:000s software timer. DAILY ON:N AT:12h00 PUMPLEAD :000s FLOWSTOP :00s To define the dual pump settings. DUAL PUMP MODE:AUTO ROTATION To check the actual value of the...
- Page 14 Info menu ™ To check which were the pressures of of _÷ UNIT HISTORY:002 HP2:019$ 0 b = 050$ 0 ¢ circuit 2 and the status of the fans at the LP2:019$ 0 b = -05$ 2 ¢ moment shutdown (only To consult time and date information.
- Page 15 Tasks of the usersettings menu To check the status of the changeable _÷CHANG. DIG. INPUTS DI4 NONE digital inputs and outputs (second Entering the usersettings menu DO1 SAFETY+W.(NO) :O screen). DO2 GEN.OPERATION :O The usersettings menu is protected by the user password, a 4-digit To check the status of the changeable _÷CHANG.
- Page 16 Submenu: Pump NOTE To activate manual control mode, select MANUAL CONTROL as present mode. To deactivate the manual Defining the pump control settings control mode, select an other mode as present mode. The PUMPCONTROL screen of the usersettings menu allows the user For units in a DICN configuration: to define the pump-leadtime and pump-lagtime.
- Page 17 Submenu: Language • STANDBY : The unit is considered as a NORMAL unit and its function is then also similar to a unit defined as , but this NORMAL Defining the language unit however, will only come into operation if: another unit is in alarm another unit is in mode...
- Page 18 To check the actual value of the software timers, proceed as follows: Defining controller settings Enter the TIMERS MENU . (Refer to the chapter "How to enter a The second ADVANCED screen of the usersettings menu also allows menu" on page the user to define settings for the controller.
- Page 19 Tasks of the info menu The possible settings for the changeable relay outputs are: NONE (OPEN) : Digital output open. Consulting additional unit information CLOSED : Digital output closed. 2ND PUMP : indicates the status of the second pump. Enter the INFO MENU through the main menu. (Refer to the chapter "How to enter a menu"...
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Page 20: Troubleshooting
Tasks of the login/logout menu ROUBLESHOOTING Changing the user password This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit. Access to the usersettings menu and the setpoints menu is protected Before starting the trouble shooting procedure, carry out a thorough by the user password (a 4-digit number between 0000 and 9999 ). - Page 21 Symptom 4: The circuit does not start up Message safety menu Symptom UNIT WARNING 0AE:FLOW HAS STOPPED OSSIBLE CAUSES ORRECTIVE ACTION 0C9:INL SENSOR ERR One of the following safety devices is Check on the controller and refer to 1E3:HP SETBACK activated: Symptom 5: Safety devices are •...
- Page 22 5.9b Symptom 5.6: Superheat temperature is not correct Symptom 5.9b: Compressor safety (only for SJ161-4) (1A9/2A9:SUPERHEAT ERR) (1E6/2E6:COMPR 1/2 SAFETY) OSSIBLE CAUSES ORRECTIVE ACTION OSSIBLE CAUSES ORRECTIVE ACTION Superheat temperature is too high. Check if the unit has enough Failure of one of the phases. Check fuses on the supply panel or refrigerant (no foaming visible in measure the supply voltage.
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Page 23: Maintenance Activities
Symptom 6: Unit stops soon after operation Symptom 13: The NETWORK SAFETY alarm message shows 0U4:SW VERSION ERR OSSIBLE CAUSES ORRECTIVE ACTION OSSIBLE CAUSES ORRECTIVE ACTION One of the safety devices is Check safety devices (refer to activated. Symptom 5: Safety devices are All units in the DICN system Check the software version of each activated and alarm messages are... -
Page 24: Disposal Requirements
Water supply OTES • Check if the water connection is still well fixed. • Check the water quality (refer to the installation manual of the unit for specifications of the water quality). Water filters • Make sure to clean the water filter in front of the evaporator water inlet once every 4 months. - Page 25 OTES EWAQ080~260DAYN Operation manual Packaged air-cooled water chillers 4PW35556-1E...
- Page 26 NNEX Thermostat parameters Water temperature control The figures below show the thermostat diagram in case of inlet water temperature control. Stand alone thermostat (inlet or outlet) DICN thermostat (inlet) Load up request of 4 compressors Load up request of 1 compressor Load up request of 3 compressors no action Load up request of 2 compressors...
- Page 27 Floating setpoint based on changeable analogue input NNEX FLOATING SETPOINT MODE:CH.AI MAX VALUE Floating setpoint working MAXIMUM VALUE:003$ 0 ¢ Example = 50 (0.5 V, 12 mA) The diagrams and table below show the default value of the floating setpoint parameters on the evaporator and an example on the inlet 15.0°C +3.0°C setpoint of 12.0°C.
- Page 28 NNEX >READOUT MENU ----STARTUP BUSY---- SETPOINTS MENU ª ™ READOUT MENU INFO MENU USERSETTINGS MENU ∑ Ÿ TIMERS MENU SETPOINTS MENU I/O STATUS MENU HISTORY MENU Å Æ USERSETTINGS MENU LOGIN/LOGOUT MENU INFO MENU Ó ∆ I/O STATUS MENU ªÒµ® TIMERS MENU NETWORK MENU LOGIN/LOGOUT MENU...
- Page 29 _÷ C1 ACT. PRESSURES _÷ C2 ACT. PRESSURES _÷ UNIT STATUS _÷ UNIT STATUS _÷ EXTRA READOUT _÷ EXTRA READOUT HP1:019$ 0 b = 050$ 8 ¢ HP2:019$ 0 b = 050$ 8 ¢ C11:OFF SAFETY ACT. C21:OFF SAFETY ACT. CURRENT:055A C11RH:00000hCS:00000 LP1:004$ 4 b = -05$ 2 ¢...
- Page 30 4PW35556-1E...
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