Related Manuals for Daikin Hydrocube EWLP012KAW1N
Summary of Contents for Daikin Hydrocube EWLP012KAW1N
- Page 1 OPERATION MANUAL Condenserless water-cooled water chillers EWLP012KAW1N EWLP020KAW1N EWLP026KAW1N EWLP030KAW1N EWLP040KAW1N EWLP055KAW1N EWLP065KAW1N...
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Page 2: Table Of Contents
Daikin EWLP-KA series. These units are provided for indoor installation and used for cooling applications. The EWLP units Compressor EWLP can be combined with Daikin fan coil units or air handling units for air Model 2x JT212DA-YE... -
Page 3: Electrical Specifications
Electrical specifications Model EWLP Model EWLP Power supply Power supply • Phase • Phase • Frequency • Frequency (Hz) (Hz) • Voltage • Voltage • Voltage tolerance ±10 • Voltage tolerance ±10 3x 16 3x 20 3x 25 3x 32 3x 40 3x 50 3x 50... -
Page 4: Function Of The Main Components
Function of the main components EWLP012~030KAW1N S4LP S1HP S5LP S2HP EWLP040~065KAW1N S4LP S1HP Figure: Functional diagram Compressor Liquid stop valve Filter Discharge stop valve Expansion valve Accumulator Evaporator Flow switch (delivered with the unit, installed in the field) Evaporator water outlet Ball valve (delivered with the unit, installed in the field) Evaporator water inlet Water filter (delivered with the unit, installed in the field) -
Page 5: Internal Wiring - Parts Table
Internal wiring - Parts table Low pressure switch The low-pressure switch (S*LP) is installed on the suction pipe Refer to the internal wiring diagram supplied with the unit. The of the unit and measures the evaporator pressure (pressure at abbreviations used are listed below: the intlet of the compressor). -
Page 6: Before Operation
Power supply connection and crankcase heating EFORE OPERATION In order to avoid compressor damage, it is necessary to Checks before initial start-up switch on the crankcase heater for at least six hours before starting the compressor after a long period of standstill. Make sure that the circuit breaker on the power supply panel of the unit is switched off. -
Page 7: Working With The Ewlp Units
Working with the EWLP units Keys provided on the controller: Each key, except for the lower left key, combines two functions: E/ This chapter deals with the everyday usage of the EWLP units. Here, O, A/Y and I/Z. The function carried out when the user you will learn how to perform routine tasks, such as: presses one of these keys depends on the status of the controller switching the unit on and off,... - Page 8 In the second case, the display will start flashing. Approximately Adjusting the cooling temperature setpoint 40 seconds later, the controller leaves the list of direct para- meters. The inlet water temperature reappears on the display. The EWLP units enable definition and modification of the cooling temperature setpoint.
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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 time delay between pump and compressor modifications, wait approximately 40 seconds. startup In the first case, the controller saves the changes, leaves the list of direct parameters and returns to normal operation, displaying User parameter c7 allows you to define the time delay between the the inlet water temperature.
- Page 11 To save the modifications, press the E key. To cancel the Defining the timer threshold for maintenance warning modifications wait approximately 40 seconds. In the first case, the controller saves the changes, leaves the list User parameter cb allows you to define a timer threshold (running of user parameters and returns to normal operation, displaying hours of the compressor) after which the controller will generate a the inlet water temperature.
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Page 12: Troubleshooting
To adjust or to consult other user parameters before saving the Symptom 1: The unit does not start, but the T LED lights up modifications, select another user parameter using the A and/ OSSIBLE CAUSES ORRECTIVE ACTION or Z key and then repeat from instruction 3 onwards. The temperature setting is not Check the controller setpoint. -
Page 13: Maintenance
AINTENANCE Symptom 4.3: High-pressure switch OSSIBLE CAUSES ORRECTIVE ACTION In order to ensure optimal availability of the unit, a number of checks Condenser fan does not operate Check that the fans turn freely. Clean and inspections on the unit and the field wiring have to be carried out properly. - Page 14 NNEX OTES Saturated temperature The figures below represent the average saturated temperature of R407C in relation to the pressure readout. High pressure side Low pressure side –15 –10 –5 conditions: - high pressure = 20 bar - subcool = 3°C Operation manual EWLP012~065KAW1N Condenserless water-cooled water chillers...
- Page 15 NOTES NOTES...
- Page 16 4PW30043-1 Zandvoordestraat 300, B-8400 Oostende, Belgium...