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- Page 1 Date 04/2021 Supersedes D-EIMWC01008-16_02EU Installation, Operation and Maintenance Manual Installation, Operation and Maintenance Manual D-EIMWC01008-16_03EN EWWD (EWLD) – J EWWH (EWLH) – J EWWS (EWLS) – J Original Instructions...
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Page 2: Table Of Contents
CONTENTS INTRODUCTION..............................5 Precautions against residual risks .......................... 5 Description ................................6 Information about the refrigerants used ........................6 1.3.1 Pressure/temperature tables ......................... 7 INSTALLATION REQUIREMENTS........................8 Information about installation of systems with R134a and R513A ................. 8 Information about installation of systems with R1234ze ..................8 2.2.1 Additional guidelines for safe use of R1234ze(E) for equipment located in the open air ...... -
Page 3: Figure 1 - Typical Refrigerant Circuit
Figure 1 - Typical refrigerant circuit Water inlet and outlet are indicative. Please refer to the machine dimensional diagrams for exact water connections. D-EIMWC01008-16_03EN - 3/35... -
Page 4: Figure 2 - Description Of The Labels Applied To The Electrical Panel
EWWD120J-SS ~ 280J-SS EWWH090J-SS ~ 200J-SS EWWS120J-SS ~ 270J-SS EWLD110J-SS ~ 265J-SS EWLH80J-SS ~ 190J-SS EWLS110J-SS ~ 270J-SS Label Identification 1 – Unit nameplate data 5 – Manufacturer’s logo 2 – Lifting instructions 6 – Emergency stop 3 – Hazardous Voltage warning 7 –... -
Page 5: Introduction
INTRODUCTION This manual is an important supporting document for qualified personnel but it is not intended to replace such personnel. READ THIS MANUAL CAREFULLY BEFORE INSTALLING AND STARTING UP THE UNIT. IMPROPER INSTALLATION COULD RESULT IN ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR OTHER DAMAGE TO THE EQUIPMENT OR INJURE TO PEOPLE. THE UNIT MUST BE INSTALLED BY A PROFESSIONAL OPERATOR/TECHNICIAN UNIT STARTUP HAS TO BE PERFORMED BY AUTHORIZED AND TRAINED PROFESSIONAL... -
Page 6: Description
The operation of the heat exchangers can be inverted connecting the user piping to the Brazed Plate Heat exchanger (chilled water) or to the shell&tube heat exchanger (heated water). All standard units are fully assembled in Daikin Applied Europe factory and tested before shipping, only the condenserless untis can not be tested. -
Page 7: Pressure/Temperature Tables
-toxic. Due to this, no special precautions are required for storage, transport, and handling. Daikin Applied Europe S.p.A. products comply with applicable European Directives and refer for unit design to product Standard EN378:2016 and industrial Standard ISO5149. Local authorities’ approval should be verified referring to European Standard EN378 and/or ISO 5149 (where R134a and R513A are classified A1, and R1234ze(E) is classified A2L –... -
Page 8: Installation Requirements
- R513A R513A Pressure/ Temperature conversion table °C °C °C °C °C 1,87 3,73 6,74 11,58 18,25 1,94 3,85 6,93 11,88 18,66 2,02 3,98 7,13 12,18 19,09 2,10 4,11 7,34 12,49 19,52 2,18 4,25 7,55 12,80 19,96 2,27 4,39 7,77 13,12 20,40 2,35... -
Page 9: Additional Guidelines For Safe Use Of R1234Ze(E) For Equipment Located In The Open Air
The chillers are built in accordance with the main European Directives (Machinery Directive, Low Voltage Directive, Electromagnetic Compatibility Directive, Pressurized Equipment Directive), make sure you also receive the declaration of product conformity with the directives along with the documentation. Before machine installation and commissioning, the people involved in this activity must have acquired the information necessary to carry out these tasks, applying all the information collected in this book. - Page 10 The emergency exhaust ventilation fan shall: ▪ Be either in the air flow with the motor outside the airflow or rated for hazardous areas (according to the assessment). ▪ Be located to avoid pressurization of the exhaust ductwork in the machinery room. ▪...
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Page 11: Receiving The Unit
Storing in condensing atmosphere may damage electronic components. Operation The Daikin EWWD-J / EWLD-J / EWWH-J / EWLH-J / EWWS-J / EWLS-J packaged water-cooled water chillers are designed for indoor installation and used for cooling and heating applications. The EWWD J -EWLD J units are available in 16 standard sizes and for their nominal cooling capacities see tables. -
Page 12: Operation Range
4.2.2 Operation range • EWWD J Operation with Glycol (below 4°C Evap LWT) • EWLD J Operation with Glycol (below 4°C Evap LWT) D-EIMWC01008-16_03EN - 12/35... - Page 13 • EWWH J Operation with Glycol (below 4°C Evap LWT) Option111 and operation with Glycol (below 4°C Evap LWT) Option111 Option 111 + Option 189 Option 189 • EWLH J Operation with Glycol (below 4°C Evap LWT Option111 and operation with Glycol (below 4°C Evap LWT) Option111 Option 111 + Option 189 Option 189...
- Page 14 • EWWS J Operation with Glycol (below 4°C Evap LWT) • EWLS J Operation with Glycol (below 4°C Evap LWT) D-EIMWC01008-16_03EN - 14/35...
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Page 15: Mechanical Installation
MECHANICAL INSTALLATION Safety All EWWD/H/S - J machines are built in compliance with the main European Directives (Machinery Directive, Low Voltage Directive, Electromagnetic Compatibility Directive, PED Pressure Equipment Directive); be sure to receive, together with the documentation, also the Declaration of Conformity (DoC) of the product to the directives. Before installation and commissioning of the machinery, the people involved in this activity must have acquired the information necessary to perform these tasks, applying all the information gathered in this manual. -
Page 16: Positioning And Assembly
Positioning and assembly To unpack and place the unit follow the actions listed: Remove the wooden beams from the unit. Install vibration mountings in case of an installation where noise and vibration might an impediment. Set the unit on a solid and level foundation. The units are designed for indoor installation and should be installed in a location that meets the following requirements: The foundation is strong enough to support the weight of the unit and the floor is flat to prevent vibration and noise generation. -
Page 17: Water Piping
In cases where the installation is subject to compliance with special sound requirements, it may be necessary to use additional noise attenuation devices, it is necessary to isolate the unit from its base with extreme care, correctly applying the anti-vibration elements (supplied as optional). Flexible joints must be installed on the water connections, as well. Water piping Piping must be designed with the lowest number of elbows and the lowest number of vertical changes of direction. - Page 18 Water inlet of the evaporator Flow switch Inlet water sensor Water inlet pipe containing the flow switch and the water inlet temperature sensor ® Victaulic coupling Counter pipe Field water pipe circuit Filter Filter and cup As not to damage the parts of the units during transport, the water inlet pipe with the flow switch and the water inlet temperature sensor and the water outlet pipe with the outlet water temperature sensor, are not factory mounted.
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Page 19: Piping Insulation
For units in double circuit configuration with common leaving water control (ELWT), be sure to foresee an insertion hole for the additional water temperature sensor. Sensor and sensor holder are optional parts. The insertion hole shall be 1/4” GAS female thread and should be located in the mixed waterflow of the chillers. Make sure that the sensor tip is in the waterflow and that you have a length of straight pipe (L) of at least 10x the pipe diameter (A) before the sensor. -
Page 20: Evaporator And Recovery Exchangers Anti-Freeze Protection
Make sure that appropriate anti-freeze protection is always maintained. Failing to follow the instructions above could result in unit damage. Damage caused by freezing is excluded from the warranty, therefore Daikin Applied Europe S.p.A declines all responsibility... -
Page 21: Before Starting
Before Starting The unit should not be started, not even for a very short period of time, before the following pre- commissioning checklist is filled out completely. tick when checked standard steps to go through before starting the unit ... -
Page 22: Guidelines For Remote Condenser Application (Ewld J, Ewlh And Ewls Versions)
After the equipment is correctly installed, leak tested and evacuated, it can be charged with refrigerant and started under the supervision of Daikin authorized technician. Charge will be added until the liquid line sight glass is clear, with no bubbles flowing into the expansion val ve. Total... -
Page 23: Charging The Unit
6.1.3 Charging the unit Perform an integral pre-start inspection like explained in “BEFORE STARTING”. Carefully perform all required procedures like explained in chapters from which is referred to in chapter “BEFORE STARTING”, but do not start the unit. It is also necessary to read the operation manual delivered with the unit. -
Page 24: Figure 5 - Condenser Located With No Elevation Difference
Figure 5 - Condenser located with no elevation difference Figure 6 - Condenser located above the unit D-EIMWC01008-16_03EN - 24/35... -
Page 25: Equivalent Line Lenght
Figure 7 - Condenser located below the unit 6.2.1 Equivalent line lenght To determine the appropriate size for field installed liquid and discharge lines, it is first necessary to establish the equivalent length of pipe for each line. The equivalent length is the actual friction loss from the linear run of pipe plus the added friction loss of elbows, valves, etc. -
Page 26: Liquid Line Sizing
6.2.2 Liquid line sizing In designing liquid lines it is important that the liquid reaches the expansion valve without flash gas, since this gas will reduce the valve capacity. Because flashing gas can be caused by pressure drop in the line, the pressure losses due to friction and changes in static head should be kept at minimum. -
Page 27: Oil Charge
pressure tap valve should be installed at the condenser to facilitate measuring pressure for service. A relief valve should be installed on the discharge line. Reference for discharge line sizing is shown in Table 4, Table 5 and Table 6. It has to be used for reference only, for circu it working with evaporator leaving temperature equal to 7°C and condensing temperature equal to 55°C. -
Page 28: Electrical Installation
Provide an electrical circuit to connect the unit. It must be connected to the copper cables with an adequate section relativ e to the plate absorption values and according to the current electrical standards. Daikin Applied Europe S.p.A. declines all responsibility for an inadequate electrical connection. The connections to the terminals must be made with copper terminals and cables, otherwise overheating or corrosion may occur at the connection points with the risk of damaging the unit. -
Page 29: Cable Requirements
The power supply to the unit must be set up in such a way that it can be switched on or off independently from that of other system components and other equipment in general, by means of a general switch. The electrical connection of the panel must be carried out maintaining the correct sequence of the phases. -
Page 30: Operation
Example: the three phases measure 383, 386 and 392 V respectively. The average is: 383 + 386 + 392 = 387 �� The unbalance percentage is: ( 392 − 387 ) ∗ 100 = ��. ���� % less than the maximum allowed (3%). OPERATION Operator’s responsibilities It is essential that the operator is appropriately trained and becomes familiar with the system before operating the unit. -
Page 31: Maintenance
MAINTENANCE Routine maintenance This unit must be maintained by qualified technicians. Before beginning any work on the system the personnel shall assure that all security precautions have been taken. Personel working on the electrical or the refrigeration components must be authorized, trained and fully qualified. Maintenance and repair requiring the assistance of other skilled personnel should be carried out under the supervision of the person competent in the use of flammable refrigerants. - Page 32 Standard Routine Maintenance Plan Routine maintenance programme (Note 2) Weekly Monthly Yearly (Note 1) (Note 2) General Reading of operating data (Note 3) Visual inspection of machine for any damage and/or loosening Verification of thermal insulation integrity Clean and paint where necessary Analysis of water (Note 5) Electrical: Verification of control sequence...
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Page 33: 10 Service And Limited Warranty
10 SERVICE AND LIMITED WARRANTY All units are factory-tested and guaranteed for 12 months as of the first start-up or 18 months as of delivery. These units have been developed and constructed according to high quality standards ensuring years of failure -free operation. -
Page 34: 13 Important Information Regarding The Refrigerant Used
13 IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: R134a / R1234ze / R513A GWP(1) value: 1430 / 7 / 631 (1)GWP = global warming potential The refrigerant quantity necessary for standard operation is indicated on the unit name plate. Periodic inspections for refrigerant leaks may be required depending on European or local legislation. - Page 35 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 a ny direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this publication.
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