Daikin EWWQ-KC Installation, Operation And Maintenance Manual Download

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EWWQ014KCW1N
EWWQ025KCW1N
EWWQ033KCW1N
EWWQ049KCW1N
EWWQ064KCW1N

REV

Date

01/2022

Supersedes

Installation, Operation and Maintenance Manual

D-EIMHP01501-22_00EN

PACKAGED WATER-COOLED WATER CHILLERS

Summary of Contents for EWWQ-KC

Page 1: ...EWWQ014KCW1N EWWQ025KCW1N EWWQ033KCW1N EWWQ049KCW1N EWWQ064KCW1N REV 00 Date 01 2022 Supersedes Installation Operation and Maintenance Manual D EIMHP01501 22_00EN PACKAGED WATER COOLED WATER CHILLERS ...

Page 2: ...lectric power supply 11 12 4 Interconnection cables 11 13 OPERATOR S REPONSIBILITIES 12 14 MAINTENANCE 13 14 1 Routine maintenance 13 15 SERVICE AND LIMITED WARRANTY 16 16 BEFORE STARTING 18 LIST OF TABLES Table 1 Technical specifications 1 4 Table 2 Electrical specifications 1 4 Table 3 Water quality specifications 9 Table 4 Water flow operation range 10 Table 5 Impedance Z 11 Table 6 R410A Press...

Page 3: ...short circuit leaks fire or other damage to the equipment Be sure only to use accessories optional equipment and spare parts made by Daikin which are specifically designed for use with the equipment and have them installed by a professional If unsure of installation procedures or use always contact your Daikin dealer for advice and information The English text is the original instruction Other lan...

Page 4: ...al describes the procedures for unpacking installing and connecting the EWWQ units This appliance is intended to be used by expert or trained users in shops in light industry and on farms or for commercial use by lay persons Sound pressure level is less than 70 dB A Table 1 Technical specifications 1 General EWWQ 014 025 033 Dimensions HxWxD mm 600x600x600 Machine Weight kg 120 170 175 Connections...

Page 5: ...ikin On Site Standard features Glycol application for chilled water temperature down to 10 C Powered Contact General alarm Voltage free digital contacts general operation Reversing Valve Evaporator Water pump Condenser Water pump Backup heater Changeable remote inputs remote start stop remote cooling heating dual setpoint External Alarm Setpoint reset 1 Refer to the operation manual Wiring diagram...

Page 6: ...TION RANGE Figure 1 Operating limits on EWWQ014 033 Figure 2 Operating limits EWWQ049 064 ELWT Evaporator leaving water temperature CLWT Condenser leaving water temperature 1 Operation with water 2 Operation with glycol below ELWT 4 C ...

Page 7: ...danger of fire due to leakage of non flammable gas 4 Select the location of the unit in such a way that the sound generated by the unit does not disturb anyone 5 Ensure that water cannot cause any damage to the location in case it drips out of the unit The equipment is not intended for use in a potentially explosive atmosphere 5 INSPECTING AND HANDLING THE UNIT At delivery the unit should be check...

Page 8: ...directly into the heat exchanger 2 Drain taps must be provided at all low points of the system to permit complete drainage of the circuit during maintenance or in case of shut down 3 Anti vibration systems in all water piping connected to the chiller are recommended to avoid straining the piping and transmitting vibration and noise Additional water piping delivered with the unit All additional wat...

Page 9: ...unit so that normal servicing of the water filter can be accomplished without draining the complete system 3 Air purge valves must be provided at all high points of the system The vents should be located at points which are easily accessible for servicing 4 The water filter must be installed in front of the unit for removing dirt from the water to prevent damage to the unit or malfunctioning of th...

Page 10: ... in the water circuit to make sure that the water pressure will never exceed the maximum allowable working pressure 11 PIPING INSULATION The complete water circuit inclusive all piping must be insulated to prevent condensation and reduction of the cooling capacity 11 1 Antifreeze protection for BPHE and recovery exchangers If the heat exchangers are completely empty and cleaned with antifreeze sol...

Page 11: ...er power supply 1 Install cable gland to proper tight main power supply cable 2 Using the appropriate cable connect the power circuit to the N L1 L2 and L3 terminals of the unit cable section 2 5 16mm2 3 Connect the earth conductor yellow green to the earthing terminal PE 12 3 Point for attention regarding quality of the public electric power supply This equipment complies with EN IEC 61000 3 11 p...

Page 12: ...are to keep this equipment in good working order However during operation and maintenance it is essential to observe the following instructions Do not allow unauthorized and or unqualified personnel to access the unit It is forbidden to access the electrical components without having opened the unit main switch and switched off the power supply It is forbidden to access the electrical components w...

Page 13: ... are process cooling data centres etc Highly Aggressive Environments can be defined as follows Industrial environment with possible concentration of fumes result of combustion and chemical process Coastal environment Highly polluted urban environment Rural environment close to of animal excrement and fertilizers and high concentration of exhaust gas from diesel gener ators Desert areas with risk o...

Page 14: ...especially for water exchangers pay attention if water rich in calcium carbonate is used An increase in pressure drops or a decrease in thermal efficiency means that the heat exchangers are clogged In environments with a high concentration of airborne particles it might be necessary to clean the condenser bank more often 6 Units placed or stored in a Highly Aggressive Environment for long time wit...

Page 15: ... time without operation are still subject to those routine maintenance steps Monthly Yearly Seasonal List of Activities Note 8 Weekly Note 1 Note 2 General Reading of operating data Note 3 X Visual inspection of unit for any damage and or loosening X Verification of thermal insulation integrity X Cleaning X Paint where necessary X Analysis of water 4 X Check of flow switch operation X Electrical I...

Page 16: ...ropriate manner beyond its operating limits or not performing proper maintenance according to this manual can void the warranty Observe the following points to conform to warranty limits 1 The unit cannot function beyond the specified limits 2 The electrical power supply must be within the voltage limits and without voltage harmonics or sudden changes 3 The three phase power supply must not have a...

Page 17: ...OPTIONAL 9 ACCUMULATOR 10 DISCHARGE STOP VALVE 11 SIGHT GLASS 12 LIQUID SOLENOID VALVE 13 LIQUID STOP VALVE POS COMPONENT CONNECTION D1 COMPRESSOR CONDENSER L1 1 L2 1 CONDENSER THERM EXP VALVE L1 2 L2 2 THERM EXP VALVE EVAPORATOR S1 EVAPORATOR COMPRESSOR S1 1 EVAPORATOR ACCUMULATOR S1 2 ACCUMULATOR COMPRESSOR W1 W3 WATER INLET ASSEMBLY OPTIONAL W2 W4 WATER OUTLET ASSEMBLY OPTIONAL E1 E2 EQUALIZER ...

Page 18: ...that it can be switched on or off independently of the electrical supply to other items of the plant and equipment in general Refer to the wiring diagram terminals N L1 L2 L3 and PE 4 Supply water to the evaporator and condenser and verify if waterflow is within the limits as given in the table under Water charge flow and quality 5 The piping must be completely purged See also chapter Checking the...

Page 19: ...D EIMHP01501 22_00EN 19 20 NOTES ...

Page 20: ...se of its content and the products and services presented therein Specification are subject to change without prior notice Refer to the data communicated at the time of the order Daikin Applied Europe S p A explicitly rejects any liability for any direct or indirect damage in the broadest sense arising from or related to the use and or interpretation of this publication All content is copyrighted ...

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