Daikin EWAQ~G-SR Installation, Operation And Maintenance Manual Download Page 1

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D-EIMAC01207-15EN - 1/22

Air Cooled Chiller Multiscroll

EWAQ~G-

SS (Standard Efficiency - Standard Noise)

SR (Standard Efficiency - Reduced Noise)
XS (High Efficiency - Standard Noise)
XR (High Efficiency - Reduced Noise)

Refrigerant: R410A

Original Instructions

Installation, Operation and Maintenance Manual

–EIMAC01207-15EN

Summary of Contents for EWAQ~G-SR

Page 1: ...EWAQ G SS Standard Efficiency Standard Noise SR Standard Efficiency Reduced Noise XS High Efficiency Standard Noise XR High Efficiency Reduced Noise Refrigerant R410A Original Instructions Installati...

Page 2: ...it connection 10 Water treatment 11 Water flow and volume 11 Anti freeze protection for evaporators and recovery exchangers 12 Electrical system General specifications 12 Wiring at the installation si...

Page 3: ...h the unit In case of doubt contact the manufacturer s representative The aim of this manual is to make sure that the installer and the qualified operator can properly commission operate and maintain...

Page 4: ...es may be in different positions depending on the model and options on the unit Figure 2 Operating limits EWAQ G SS Standard efficiency Standard noise Water temperature at outlet C 1 Slack electrical...

Page 5: ...C01207 15EN 5 22 EWAQ G SR Standard efficiency Reduced noise Water temperature at outlet C EWAQ G XS High efficiency Standard noise Water temperature at outlet C Ambient temperature C Ambient temperat...

Page 6: ...Water temperature at outlet C Water temperature at evaporator outlet C A Operating with glycol B Operating with fan speed mode selected C Operating at maximum fan speed Table 1 Evaporator Difference i...

Page 7: ...orm of insulation Never access electrical components if water and or moisture are present Always disconnect the power supply by closing the main switch before carrying out any work on the cooling fans...

Page 8: ...cooling condenser Both these conditions can cause an increase in condenser pressure which can lead to poor energy efficiency and refrigerating capacity If two or more units are positioned alongside e...

Page 9: ...use lifting hooks fitted with appropriate locking devices The hooks must be safely fastened before performing the handling 3 Fork lift truck Sound protection When sound levels require special control...

Page 10: ...o the heat exchangers Pipe insulation The complete water circuit including all pipes must be insulated to avoid condensate from forming and reducing cooling capacity Protect water pipes from freezing...

Page 11: ...ter The manufacturer is not responsible for any damage or malfunctions of the equipment The quality of the water must comply with the specifications listed in the following table The water pressure mu...

Page 12: ...system of the cooling installation is being designed two or more of the following anti freeze protection methods should be considered at the same time 1 Continuous circulation of water flow inside th...

Page 13: ...nals The power supply cables must be supported by adequate systems The wires connected to the switch must comply with the insulation distance and the distance of surface insulation between the active...

Page 14: ...unit In addition to reading this manual the user must study the microprocessor operating manual and the wiring diagram in order to understand the start up sequence operation shutdown sequence and ope...

Page 15: ...evel full X Check for a load loss in filter dryer where present X Analyse the compressor vibrations X Check the safety valve Note 5 X Heat exchangers Check that the heat exchangers are clean Note 6 X...

Page 16: ...ronic components All these components must be disposed of in accordance with relevant current national and European legislative requirements Lead batteries must be collected and sent to specific waste...

Page 17: ...n Secondary Temperature Sensor M S BC Main Secondary Connection Box D L Request Limit DI Digital Inputs DO Digital Outputs DSP Double Setting Point EF External failure EFS Evaporator flow switch GA Ge...

Page 18: ...D EIMAC01207 15EN 18 22 A Typical refrigerant circuit The number of compressors and water inlet and outlet are indicative Please refer to the machine dimensional diagrams for exact water connections...

Page 19: ...15EN 19 22 B Typical refrigerant circuit with partial heat recovery The number of compressors and water inlet and outlet are indicative Please refer to the machine dimensional diagrams for exact water...

Page 20: ...15EN 20 22 C Typical refrigerant circuit with total heat recovery The number of compressors and water inlet and outlet are indicative Please refer to the machine dimensional diagrams for exact water...

Page 21: ...4 Evaporator water outlet connection 15 Heat recovery water inlet connection 16 Heat recovery water outlet connection 17 Low pressure safety valve 18 High pressure safety valve EP Low pressure transdu...

Page 22: ...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...