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Summary of Contents for Hitecsa EKWXA 7002.4
- Page 1 EKWXA │ EKWXBA ONLY COOLING HEATING PUMP AIR-COOLED WATER CHILLERS ─ AXIAL FANS Models: 7002.4 │ 8002.4 │ 9002.4 Cooling Capacities: from 178,3 kW to 213,6 kW Heating Capacities: from 194,9 kW to 244,2 kW 05.17 207646 Rev.103...
- Page 2 Thank you for trusting the Hitecsa Products. Our company has been offering the market an extended range of specialized units for air conditioning and cooling installations for over 35 years. Our approach is based on efficiency, adaptability, usability and practical solutions.
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Page 3: Table Of Contents
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS EKWXA – EKWXBA – BIG KRONO II INDEX INTRODUCTION ........................ 5 CONTENTS ........................... 5 REGULATIONS AND CERTIFICATIONS ................... 6 SAFETY PRECAUTIONS ...................... 6 DESCRIPTION OF THE UNIT ....................7 TECHNICAL DATA ......................8 RECEPTION ........................10 INSPECTION ........................ - Page 4 EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS Model 7002.4 ........................20 Models 8002.4 │ 9002.4 ....................21 System Parameters ......................22 Regulation Parameters ....................23 Compressors ........................23 Alarms ..........................24 HYDRONIC KIT ........................ 26 TECHNICAL DATA ....................... 26 OPERATING LIMITS ......................27 MAINTENANCE .......................
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Page 5: Introduction
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS INTRODUCTION CONTENTS Purpose of the Manual This manual and the instruction documents of refrigeration lines, wiring diagrams and any other attached documents, have been written to allow a correct installation, set up and maintenance of the unit. Therefore it is essential to read the instructions with due attention. -
Page 6: Regulations And Certifications
CE MARKING: Our machines have got the CE mark, in conformity with the essential requirements of the applicable EC directives and their last modifications as well as with the national legislation of each country. CERTIFICACION EUROVENT: HITECSA participates in the EUROVENT Certification program. Check certified products on the web. SAFETY PRECAUTIONS... -
Page 7: Description Of The Unit
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS DESCRIPTION OF THE UNIT The EKWXA / EKWXBA units are compact reversible WATER / AIR units for the production of hot / cold water. They are designed for outdoor installation. Supplied with R-410A refrigerant charge, ready for installation. These units are manufactured under a strict quality control throughout their process and once finished are tested in the factory, verifying the correct operation of all its components. -
Page 8: Technical Data
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS TECHNICAL DATA EKWXA/EKWXBA 7002.4 8002.4 9002.4 COOLING MODE Cooling capacity 178,3 200,1 213,6 Total absorbed capacity 61,3 73,8 81,8 Total rated current 107,7 123,6 138,2 Compressor absorbed power 54,2 72,8 Compressor rated current 94,3 111,8 125,2 Evaporator water flow... - Page 9 EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS TECHNICAL DATA EKWXA/EKWXBA 7002.4 8002.4 9002.4 OUTDOOR HEAT EXCHANGER Type Aluminum fin coil and copper tubing Quantity Front surface of the exchanger 5,18 + 5,18 INDOOR HEAT EXCHANGER Type PLATES (Water / Refrigerant) Quantity Evaporator water flow 35,5 Evaporator pressure drop...
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Page 10: Reception
Verify the correct voltage of the nameplate and make sure it’s in accordance with local power supply. In case of any flaw or anomaly detected, please contact HITECSA. RIGGING Before moving the unit, make sure that all panels are well fixed. -
Page 11: Installation
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS INSTALLATION DIMENSIONS Model 7002.4 Water inler Ø 3” Water outlet Ø 3” Electrical panel Main switch Electrical connection input Optional electrical connection input Water inlet with Hydronic Kit Ø 3” 05.17 207646 Rev.103... -
Page 12: Models 8002.4 │ 9002.4
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS INSTALLATION DIMENSIONS Models 8002.4 │ 9002.4 Water inler Ø 3” Water outlet Ø 3” Electrical panel Main switch Electrical connection input Optional electrical connection input Water inlet with Hydronic Kit Ø 3” 05.17 207646 Rev.103... -
Page 13: Weight Distribution
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS INSTALLATION WEIGHT DISTRIBUTION Model 7002.4 WEIGHT DISTRIBUTION (kg) TOTAL Heating 1720 pump 7002.4 Cooling 1686 only Models 8002.4 │ 9002.4 WEIGHT DISTRIBUTION (kg) TOTAL Heating 1753 pump 8002.4 Cooling 1719 only Heating 1759 pump 9002.4 Cooling 1725... -
Page 14: Installation Location
Unit current supply should be within 10% of Volts indicated on the unit nameplate. Unit star-up at incorrect voltage and resulted from its damages are not covered by Hitecsa guarantee. When making electrical connections always use the unit wiring diagram. -
Page 15: Service Area
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS INSTALLATION SERVICE AREA Be sure to respect the measures for a proper operation of the unit. Model 7002.4 Models 8002.4 │ 9002.4 05.17 207646 Rev.103... -
Page 16: Operation
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS OPERATION OPERATING LIMITS OPERATING LIMITS 7002.4 8002.4 9002.4 Nominal Water Flow 35,5 Minimum Water Flow 21,9 23,6 24,6 Maximum Water Flow 49,5 53,3 55,5 Minimum Volume of Water LWT (°C) Modo de Refrigeración 7002.4 │ 5002.4 │ 9002.4 EKWXA - EKWXBA EKWXA - EKWXBA + Glicol... -
Page 17: Before Start-Up
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS OPERATION BEFORE START-UP Check the following points: Electrical connections are well tightened. Panels are firmly secured with screws. There are no oil or refrigerant leaks. The unit is correctly leveled. ... -
Page 18: Mcx-15 Start Up
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Start Menu Keypad utility (UP) By pressing and holding this key for, at least, 3 seconds the unit will start up if it was shutdown or it shuts down if it is running. -
Page 19: Password Level
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Password Level There are 3 clearance levels for different parameters or system setting options. Level L0: User Access, no password required. Level L1: User-Maintenance Access. Level L2: Manufacturer authorized Access ONLY. DISPLAY “A”... -
Page 20: Model 7002.4
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Model 7002.4 POSITION ANALOG INPUTS DIGITAL INPUTS ANALOG OUTPUTS DIGITAL OUTPUTS Differential pressure Water inlet temperature Fans circuit 1 Compressor 1 circ.1 switch/ Flow switch Water outlet temperature Thermal Compressor 1 Fans circuit 2 Compressor 2 circ.1... -
Page 21: Models 8002.4 │ 9002.4
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Models 8002.4 │ 9002.4 POSITION ANALOG INPUTS DIGITAL INPUTS ANALOG OUTPUTS DIGITAL OUTPUTS Differential pressure Water inlet temperature Fans circuit 1 Compressor 1 circ.1 switch/ Flow switch Water outlet temperature Thermal Compressor 1 Fans circuit 2 Compressor 2 circ.1... -
Page 22: System Parameters
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP System Parameters Display Screens Display screen “A”. Select the Reading to be shown in Display screen A when the unit is running. By default, the reading shown on Display screen A when the unit is shut down is “OFF”. -
Page 23: Regulation Parameters
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Regulation Parameters Configuration Temperature Regulation Entry This is used to tell the system whether regulation will be applied to IN or OUT water temperature. AI1: Regulation of INTAKE water. AI2: Regulation of OUTLET water. -
Page 24: Alarms
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Alarms RESET WATER CONDENSER ANTIFREEZE CODE DESCRIPTION COMPRESSOR TYPE PUMP HEATER Evaporator flow switch Manual High temperature Notification Evaporator pump service time limits Notification exceeded Evaporator pump 2 service time Notification limits exceeded Condenser fan service time limits... - Page 25 EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS THERMOSTAT AND CONTROL MCX-15 START UP Alarms RESET WATER CONDENSER ANTIFREEZE CODE DESCRIPTION COMPRESSOR TYPE PUMP HEATER Thermal Protection Fan Circuit 1 Manual OFF C1 OFF C1 Thermal Protection Fan Circuit 2 Manual OFF C2 OFF C2 General High Pressure Manual...
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Page 26: Hydronic Kit
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS HYDRONIC KIT TECHNICAL DATA KRONO 2 series 7002.4 8002.4 9002.4 HYDRONIC KIT Expansion Vessel Volume Deposit Inertia Volume Available Pressure Machine + H.K. Without Tank 104,2 118,4 129,2 Available Pressure Machine + H.K. With Tank 129,8 141,6 Water Flow... -
Page 27: Operating Limits
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS HYDRONIC KIT OPERATING LIMITS OPERATING LIMITS 7002.4 8002.4 9002.4 ΔV/V Coefficient of thermal expansion Water between 7-50°C / 2 bar 0,0125 ΔV/V Coefficient of thermal expansion Water between 7-55°C / 2 bar 0,015 Expansion vessel Maximum water volume (7-50)ºC 1992 Maximum water volume (7-55)ºC... -
Page 28: Refrigerant Charge
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS MAINTENANCE REFRIGERANT CHARGE WARNING! Never use oxygen to pressurize system or purge lines for leak test. Oxygen reacts violently with oil, which can cause an explosion resulting in damage, personal injury or death. In case it is necessary to add or recover refrigerant, use an electronic scale that is suitably reinforced and prepared to withstand the handling of the refrigerant bottle. -
Page 29: Appendix: Safety Data R410A
EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS APPENDIX: SAFETY DATA R410A Refrigerant Data Safety Data: R410A Toxicity R410A vapours can irritate the skin and eyes. In liquid form, it can freeze skin on contact. If contact with skin occurs, flush the exposed area with lukewarm water until Contact with Skin all of the chemical is removed. - Page 30 EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS APPENDIX: SAFETY DATA R410A Refrigerant Data Safety Data: R410A Do not inhale concentrated vapours. Their concentration in the atmosphere should not exceed the minimum preset values and should be maintained below the General Precautions professional threshold.
- Page 31 EKWXA│EKWXBA AIR-COOLED WATER CHILLERS AXIAL FANS We reserve the right to add modifications without prior notice. 05.17 207646 Rev.103...
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