Daikin EWWD-J User manual

Original Instructions
REV
03
Date
04/2021
Supersedes
D-EIMWC01008-16_02EU
Installation, Operation and Maintenance Manual
EWWD (EWLD) –J
EWWH (EWLH) –J
EWWS (EWLS) –J
Installation, Operation and Maintenance Manual
D-EIMWC01008-16_03EN

D-EIMWC01008-16_03EN - 2/35
CONTENTS
1INTRODUCTION................................................................................................................................................ 5
1.1 Precautions against residual risks.......................................................................................................................... 5
1.2 Description.............................................................................................................................................................. 6
1.3 Information about the refrigerants used..................................................................................................................6
1.3.1 Pressure/temperature tables......................................................................................................................... 7
2INSTALLATION REQUIREMENTS................................................................................................................... 8
2.1 Information about installation of systems with R134a and R513A ......................................................................... 8
2.2 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 ............................. 9
2.2.2 Additional guidelines for safe use of R1234ze(E) for equipment located in a machinery room ................... 9
3RECEIVING THE UNIT.................................................................................................................................... 11
4OPERATING LIMITS....................................................................................................................................... 11
4.1 Storing Storage..................................................................................................................................................... 11
4.2 Operation ..............................................................................................................................................................11
4.2.1 Options and features................................................................................................................................... 11
4.2.2 Operation range .......................................................................................................................................... 12
5MECHANICAL INSTALLATION ..................................................................................................................... 15
5.1 Safety.................................................................................................................................................................... 15
5.2 Moving and lifting.................................................................................................................................................. 15
5.3 Positioning and assembly..................................................................................................................................... 16
5.4 Noise and Sound protection .................................................................................................................................16
5.5 Water piping..........................................................................................................................................................17
5.5.1 Water piping installation procedure............................................................................................................. 17
5.5.2 Piping insulation..........................................................................................................................................19
5.6 Water flow and quality .......................................................................................................................................... 19
5.7 Evaporator and recovery exchangers anti-freeze protection................................................................................20
5.8 Before Starting...................................................................................................................................................... 21
6GUIDELINES FOR REMOTE CONDENSER APPLICATION (EWLD J, EWLH and EWLS versions)........ 22
6.1 Installation information for condenserless units....................................................................................................22
6.1.1 Precautions when handling piping .............................................................................................................. 22
6.1.2 Leak test and vacuum drying ......................................................................................................................22
6.1.3 Charging the unit......................................................................................................................................... 23
6.2 Refrigerant piping design......................................................................................................................................23
6.2.1 Equivalent line lenght.................................................................................................................................. 25
6.2.2 Liquid line sizing.......................................................................................................................................... 26
6.2.3 Discharge (Hot Gas) Line Sizing.................................................................................................................26
6.2.4 Oil charge.................................................................................................................................................... 27
7ELECTRICAL INSTALLATION....................................................................................................................... 28
7.1 General specifications .......................................................................................................................................... 28
7.2 Electrical supply.................................................................................................................................................... 28
7.3 Electric connections..............................................................................................................................................28
7.4 Cable requirements .............................................................................................................................................. 29
7.5 Phase unbalance..................................................................................................................................................29
8OPERATION.................................................................................................................................................... 30
8.1 Operator’s responsibilities ....................................................................................................................................30
9MAINTENANCE............................................................................................................................................... 31
9.1 Routine maintenance............................................................................................................................................ 31
10 SERVICE AND LIMITED WARRANTY........................................................................................................... 33
11 PERIODIC CHECKS AND COMMISSIONING OF PRESSURE EQUIPMENT.............................................. 33
12 DISPOSAL....................................................................................................................................................... 33
13 IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED.................................................... 34
13.1 Factory and Field charged units instructions ...................................................................................................34
LIST OF FIGURES
Figure 1 - Typical refrigerant circuit.............................................................................................................................. 3
Figure 2 - Description of the labels applied to the electrical panel............................................................................... 4
Figure 3–Lifting .......................................................................................................................................................... 15
Figure 4–Unit Levelling..............................................................................................................................................16
Figure 5 - Condenser located with no elevation difference ........................................................................................ 24
Figure 6 - Condenser located above the unit .............................................................................................................24
Figure 7 - Condenser located below the unit..............................................................................................................25
Figure 8 - Equivalent lenghts (in meters).................................................................................................................... 25

D-EIMWC01008-16_03EN - 3/35
Expansion valve
Evaporator
Shut off valve
Filter
Solenoid valve
Pressure Relief valve 15,5bar
Pressure Relief valve 23,5bar
Flow Switch
Filter
9
10
11
12
13
14
15
16
17
Equipment
Compressor
Shut off valve
Condenser
Shut off valve
Filter drier
Shut off valve (charge valve)
Solenoid valve
Liquid indicator
1
2
3
4
5
6
7
8
Control equipment
High Pressure Switch 21,0bar
Pressure Transducer
Temperature Transducer
High Temperature Switch
Low Pressure Limiter
PZH
PT
TT
TZAH
TZAH
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 - 4/35
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
Figure 2 - Description of the labels applied to the electrical panel
1–Unit nameplate data
5–Manufacturer’s logo
2–Lifting instructions
6–Emergency stop
3–Hazardous Voltage warning
7–Non-flammable gas symbol
4–Electrical hazard symbol
8–Gas type

D-EIMWC01008-16_03EN - 5/35
1 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
ALL ACTIVITIES HAVE TO BE PERFORMED ACCORDING TO LOCAL LAWS AND
REGULATION.
UNIT INSTALLATION AND START UP IS ABOSOLUTELY FORBIDDEN IF ALL
INSTRUCTION CONTAINED IN THIS MANUAL ARE NOT CLEAR.
IF CASE OF DOUBT CONTACT THE MANUFACTURER REPRESENTATIVE FOR ADVICE
AND INFORMATION.
1.1 Precautions against residual risks
1. install the unit according to the instructions set out in this manual
2. regularly carry out all the maintenance operations foreseen in this manual
3. wear protective equipment (gloves, eye protection, hard hat, etc.) suited to the work in hand; do not wear clothes
or accessories that can get caught or sucked in by flows of air; tie back long hair before entering the unit
4. before opening the machine panelling make sure that it is firmly hinged to the machine
5. the fins on heat exchangers and the edges of metal components and panels can cause cuts
6. do not remove the guards from mobile components while the unit is operating
7. make sure that mobile component guards are fitted correctly before restarting the unit
8. fans, motors and belts drives might be running: before entering, always wait for these to stop and take appropriate
measures to prevent them from starting up
9. the surfaces of the machine and pipes can get very hot or cold and cause the risk of scalding
10. never exceed the maximum pressure limit (PS) of the water circuit of the unit.
11. before removing parts on the pressurised water circuits, close the section of the piping concerned and drain the
fluid gradually to stabilise the pressure at the atmospheric level
12. do not use your hands to check possible refrigerant leaks
13. disable the unit from the mains using the main switch before opening the control panel
14. check that the unit has been grounded correctly before starting it
15. install the machine in a suitable area; in particular, do not install it outdoors if it is intended for use indoors
16. do not use cables with inadequate sections nor extension cord connections, even for very short periods or
emergencies
17. for units with power correction capacitors, wait 5 minutes after removing the electric power supply before
accessing the inside of the switch board
18. if the unit is equipped with compressors with integrated inverter, disconnect it from the mains and wait a minimum
of 20 minutes before accessing it to carry out maintenance: residual energy in the components, which takes at
least this length of time to dissipate, poses the risk of electrocution
19. the unit contains pressurised refrigerant gas: the pressurised equipment must not be touched except during
maintenance, which must be entrusted to qualified and authorised personnel
20. connect up the utilities to the unit following the indications set out in this manual and on the panelling of the unit
itself
21. In order to avoid an environmental risk, make sure that any leaking fluid is collected in suitable devices in
accordance with local regulations.
22. if a part needs to be dismantled, make sure it is correctly re-assembled before starting the unit
23. when the rules in force require the installation of fire-fighting systems near the machine, check that these are
suitable for extinguishing fires on electrical equipment and on the lubricating oil of the compressor and the
refrigerant, as specified on the safety data sheets of these fluids
24. when the unit is equipped with devices for venting overpressure (safety valves): when these valves are triggered,
the refrigerant gas is released at a high temperature and speed; prevent the release of gas from harming people
or objects and, if necessary, discharge the gas according to the provisions of EN 378-3 and the local regulations
in force.
25. keep all the safety devices in good working order and check them periodically according to the regulations in force
26. keep all lubricants in suitably marked containers
27. do not store inflammable liquids near the unit
28. solder or braze only empty pipes after removing all traces of lubricant oil; do not use flames or other heat sources
in the vicinity of pipes containing refrigerant fluid
29. do not use naked flames near the unit

D-EIMWC01008-16_03EN - 6/35
30. the machinery must be installedin structures protected against atmospheric discharge according to the applicable
laws and technical standards
31. do not bend or hit pipes containing pressurised fluids
32. it is not permitted to walk or rest other objects on the machines
33. the user is responsible for overall evaluation of the risk of fire in the place of installation (for example, calculation
of the fire load)
34. during transport, always secure the unit to the bed of the vehicle to prevent it from moving about and overturning
35. the machine must be transported according to the regulations in force taking into account the characteristics of
the fluids in the machine and the description of these on the safety data sheet
36. inappropriate transport can cause damage to the machine and even leaking of the refrigerant fluid. Before start-
up, the machine must be checked for leaks and repaired accordingly.
37. the accidental discharge of refrigerant in a closed area can cause a lack of oxygen and, therefore, the risk of
asphyxiation: install the machinery in a well ventilated environment according to EN 378-3 and the local
regulations in force.
38. the installation must comply with the requirements of EN 378-3 and the local regulations in force; in the case of
installations indoors, good ventilation must be guaranteed and refrigerant detectors must be fitted when
necessary.
1.2 Description
The unit purchased is a Heat Pump, that is a machine designed to cool/heat the water (or a water-glycol mixture) within
certain limits which will be listed below. The unit operates based on the compression, condensation and evaporation of the
coolant gas as per the Carnot cycle, and is composed mainly of the following parts depending on the Mode of Operation.
Cooling or Conditioning Mode:
•Screw compressors which increase the pressure of the refrigerant gas from evaporation pressure to condensation
pressure.
•A water-cooled condenser where the refrigerant gas condenses under high pressure and transfers heat to the
water.
•An expansion valve which allows the pressure of condensed liquid refrigerant to be reduced from condensation
pressure to evaporation pressure.
•A water-cooled evaporator, where the low-pressure liquid refrigerant evaporates and chills the water.
Heating Mode or Heat Pump:
•Screw compressors compressors which increase the pressure of the refrigerant gas from evaporation pressure
to condensation pressure.
•A condenser where the refrigerant gas condenses under high pressure and transfers heat to the water.
•An expansion valve which allows the pressure of condensed liquid refrigerant to be reduced from condensation
pressure to evaporation pressure.
•An evaporator, where the low-pressure liquid refrigerant evaporates and chills the water.
•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.
The EWWD(H/S)-J range consists of models with a single refrigerant circuit (from 90 to 120 kW).
The machine uses three type of refrigerant fluids: R134a, R1234ze, R513A with different envelopes.
The controller is pre-wired, set up and tested at the factory. Only normal field connections such as piping, electrical
connections and pump interlocks are required, simplifying installation and increasing reliability. All safety and operation
control systems are installed at the factory in the control panel.
The instructions in this manual are applicable to all models in this series unless otherwise specified.
1.3 Information about the refrigerants used
This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere.
Models
EWWD J
EWLD J
EWWH J
EWLH J
EWWS J
EWLS J
Refrigerant type
R134a
R1234ze
R513A
GWP(1) value
1430
7
572
For the EWWD J, EWWH J and EWWS J unit versions the quantity is indicated on the unit name plate.
For the EWLD J, EWLH J and EWLS J unit versions, please fill the total refrigerant charge in with indelible ink on the
refrigerant charge label supplied with the product.
(
1
) GWP = global warming potential

D-EIMWC01008-16_03EN - 7/35
The filled-out label must be adhered inside the electric panel door.
Refrigerants R134a, R1234ze(E) and R513A are classified by European Directive 2014/68/EU as Group 2 (non-
dangerous) substances as it is nonflammable at standard ambient temperature and non-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 –Mildly flammable gas).
1.3.1 Pressure/temperature tables
- R134a
R134a Pressure/ Temperature conversion table
°C
bar
°C
bar
°C
bar
°C
bar
°C
bar
-15
1,64
4
3,38
23
6,27
43
11,01
62
17,62
-14
1,71
5
3,50
25
6,46
44
11,30
63
18,04
-13
1,78
6
3,62
26
6,65
45
11,60
64
18,46
-12
1,85
7
3,75
27
6,85
46
11,90
65
18,89
-11
1,93
8
3,88
28
7,06
47
12,21
66
19,33
-10
2,01
9
4,01
29
7,27
48
12,53
67
19,78
-9
2,09
10
4,15
30
7,48
49
12,85
68
20,23
-8
2,17
11
4,29
31
7,70
50
13,18
69
20,69
-7
2,26
12
4,43
32
7,92
51
13,51
70
21,16
-6
2,34
13
4,58
33
8,15
52
13,85
71
21,64
-5
2,43
14
4,73
34
8,39
53
14,20
72
22,13
-4
2,53
15
4,88
35
8,63
54
14,55
73
22,62
-3
2,62
16
5,04
36
8,87
55
14,91
74
23,12
-2
2,72
17
5,20
37
9,12
56
15,28
75
23,63
-1
2,82
18
5,37
38
9,37
57
15,65
76
24,15
0
2,93
19
5,54
39
9,63
58
16,03
77
24,68
1
3,04
20
5,72
40
9,89
59
16,42
78
25,22
2
3,15
21
5,90
41
10,16
60
16,81
79
25,77
3
3,26
22
6,08
42
10,44
61
17,22
80
26,32
- R1234ze (E)
HFO-R1234ze(E) Pressure/ Temperature conversion table
°C
bar
°C
bar
°C
bar
°C
bar
°C
bar
-15
1,20
4
2,50
23
4,69
43
8,31
62
13,39
-14
1,25
5
2,59
25
4,84
44
8,53
63
13,71
-13
1,30
6
2,69
26
4,98
45
8,76
64
14,03
-12
1,36
7
2,78
27
5,14
46
8,99
65
14,36
-11
1,42
8
2,88
28
5,29
47
9,23
66
14,70
-10
1,47
9
2,98
29
5,45
48
9,47
67
15,04
-9
1,53
10
3,08
30
5,62
49
9,72
68
15,39
-8
1,60
11
3,19
31
5,78
50
9,97
69
15,75
-7
1,66
12
3,30
32
5,95
51
10,23
70
16,11
-6
1,73
13
3,41
33
6,13
52
10,49
71
16,48
-5
1,79
14
3,52
34
6,31
53
10,76
72
16,85
-4
1,86
15
3,64
35
6,49
54
11,03
73
17,23
-3
1,94
16
3,76
36
6,67
55
11,30
74
17,62
-2
2,01
17
3,88
37
6,86
56
11,58
75
18,01
-1
2,09
18
4,01
38
7,06
57
11,87
76
18,41
0
2,17
19
4,14
39
7,25
58
12,16
77
18,81
1
2,25
20
4,27
40
7,46
59
12,46
78
19,23
2
2,33
21
4,41
41
7,66
60
12,76
79
19,65
3
2,41
22
4,55
42
7,87
61
13,07
80
20,07

D-EIMWC01008-16_03EN - 8/35
- R513A
R513A Pressure/ Temperature conversion table
°C
bar
°C
bar
°C
bar
°C
bar
°C
bar
-15
1,87
4
3,73
23
6,74
43
11,58
62
18,25
-14
1,94
5
3,85
25
6,93
44
11,88
63
18,66
-13
2,02
6
3,98
26
7,13
45
12,18
64
19,09
-12
2,10
7
4,11
27
7,34
46
12,49
65
19,52
-11
2,18
8
4,25
28
7,55
47
12,80
66
19,96
-10
2,27
9
4,39
29
7,77
48
13,12
67
20,40
-9
2,35
10
4,53
30
7,99
49
13,44
68
20,86
-8
2,44
11
4,68
31
8,21
50
13,77
69
21,32
-7
2,53
12
4,83
32
8,44
51
14,11
70
21,79
-6
2,63
13
4,98
33
8,67
52
14,46
71
22,27
-5
2,72
14
5,14
34
8,91
53
14,81
72
22,75
-4
2,82
15
5,30
35
9,16
54
15,16
73
23,24
-3
2,93
16
5,47
36
9,41
55
15,52
74
23,75
-2
3,03
17
5,64
37
9,66
56
15,89
75
24,26
-1
3,14
18
5,81
38
9,92
57
16,27
76
24,78
0
3,25
19
5,99
39
10,18
58
16,65
77
25,30
1
3,36
20
6,17
40
10,45
59
17,04
78
25,84
2
3,48
21
6,35
41
10,72
60
17,43
79
26,38
3
3,60
22
6,54
42
11,00
61
17,84
80
26,94
2 INSTALLATION REQUIREMENTS
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 all the procedures reported in the
aforementioned norms and the provided requirements by the local law.
Do not allow unauthorized and/or unskilled personnel to access the unit.
2.1 Information about installation of systems with R134a and R513A
According to the standard EN 378-1-2016, any refrigerant system that contains R134a or R513A, can be installed without
any restriction in open air or machinery rooms. Anyway, the building owner or the end user shall ensure that that access
is permitted only by qualified and trained personnel, who is aware of the general safety precautions of the building.
It is recommended to satisfy all the requirements listed in the EN 378-3-2016 for the installation.
The refrigerant shall not be able to flow into any adjacent room, doorway, or exhaust system in the event of a leak.
It is advised to install a refrigerant detection system which works also during the normal operation of the refrigerant system:
in case of refrigerant leak indeed, it can activate the alarm and all the necessary emergency procedures until the machine
shutoff.
The alarm shall also advice the authorized personnel to take the necessary steps. The refrigerant leak detector shall be
supplied by the user because it is a key component of the sprinkler system of the entire building.
2.2 Information about installation of systems with R1234ze
This product can be equipped with refrigerant R1234ze(E) which has minimal impact to the environment, thanks to its low
value of Global Warming Potential (GWP).
Refrigerant type
R1234ze
Safety Class
A2L
PED Fluid Group
2
Practical limit (kg/m3)
0.061
ATEL/ ODL (kg/m3)
0.28
LFL (kg/m3)@ 60°C
0.303
Vapour density @25°C, 101.3 kPa (kg/m3)
4.66
Molecular Mass
114.0
Normal Boling Point (°C)
-19
GWP (100 yr ITH)
7
GWP (ARS 100 yr ITH)
<1
Auto Ignition Temperature (°C)
368

D-EIMWC01008-16_03EN - 9/35
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. Do not allow
unauthorized and/or unskilled personnel to access the unit.
The chiller has to be installed in open air or machinery room (location classification III).
To ensure location classification III a mechanical vent on the secondary circuit(s) has to be installed.
Local building codes and safety standards shall be followed; in absence of local codes and standards refer to EN 378-
3:2016 as a guide. In paragraph “Additional guidelines for safe use of R1234ze(E)” there are provided additional
information that should be added to the requirements of safety standards and building codes.
2.2.1 Additional guidelines for safe use of R1234ze(E) for equipment located in the open air
Refrigerating systems sited in the open air shall be positioned to avoid leaked refrigerant flowing into a building or
otherwise endangering people and property.
The refrigerant shall not be able to flow into any ventilation fresh air opening, doorway, trap door or similar opening in the
event of a leak. Where a shelter is provided for refrigerating equipment sited in the open air it shall have natural or forced
ventilation.
For refrigeration systems installed outside in a location where a release of refrigerant can stagnate e.g., below ground,
then the installation shall comply with the requirements for gas detection and ventilation of machinery rooms.
2.2.2 Additional guidelines for safe use of R1234ze(E) for equipment located in a machinery room
When a machinery room is chosen for the location of the refrigerating equipment it shall be located in accordance with
local and national regulations. The following requirements (according to EN 378-3:2016) can be used for the assessment.
•A risk analysis based on the safety concept for the refrigerating system (as determined by the manufacturer and
including the charge and safety classification of the refrigerant used) shall be conducted to determine whether it
is necessary to place the refrigerating system in a separate refrigeration machinery room.
•Machinery rooms should not be used as occupied spaces. The building owner or user shall ensure that access is
permitted only by qualified and trained personnel doing the necessary maintenance to the machinery room or
general plant.
•Machinery rooms shall not be used for storage with the exception of tools, spare parts and compressor oil for the
installed equipment. Any refrigerants, or flammable or toxic materials shall be stored as required by national
regulations.
•Open (naked) flames shall not be permitted in machinery rooms, except for welding, brazing or similar activity
and then only provided the refrigerant concentration is monitored and adequate ventilation is ensured. Such open
flames shall not be left unattended.
•A remote switching (emergency type) for stopping the refrigerating system shall be provided outside the room
(near the door). A similar acting switch shall be located at a suitable location inside the room.
•All piping and ducting passing through floors, ceiling and walls of machinery room shall be sealed.
•Hot surfaces shall not exceed a temperature of 80 % of the auto-ignition temperature (in °C) or 100 K less than
the auto-ignition temperature of the refrigerant, whichever is higher.
Refrigerant
Auto ignition temperature
Maximum surface temperature
R1234ze
368 °C
294 °C
•Machinery rooms shall have doors opening outward and sufficient in number to ensure freedom for persons to
escape in an emergency; the doors shall be tight fitting, self-closing and so designed that they can be opened
from inside (antipanic system).
•Special machinery rooms where the refrigerant charge is above the practical limit for the volume of the room
shall have a door that either opens directly to the outside air or through a dedicated vestibule equipped with
self-closing, tight-fitting doors.
•The ventilation of machinery rooms shall be sufficient both for normal operating conditions and emergencies.
•Ventilation for normal operating conditions shall be in accordance with national regulations.
•The emergency mechanical ventilation system shall be activated by a detector(s), located in the machinery
room.
oThis ventilation system shall be:
▪independent of any other ventilation system on the site.
▪provided with two independent emergency controls one located outside the machinery room,
and the other inside.

D-EIMWC01008-16_03EN - 10/35
oThe 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.
▪Not cause sparks to occur if it contacts the duct material.
oAirflow of the emergency mechanical ventilation shall be at least
   

where
V
is the air flow rate in m3/s;
m
is the mass of refrigerant charge, in kg, in the refrigerating system with
the largest charge, any part of which is located in the machinery room;
0,014
is a conversion factor.
oMechanical ventilation shall be operated continuously or shall be switched on by the detector.
•Detector shall automatically activate an alarm, start mechanical ventilation, and stop the system when it
triggers.
•The location of detectors shall be chosen in relation to the refrigerant and they shall be located where the
refrigerant from the leak will concentrate.
•The positioning of the detector shall be done with due consideration of local airflow patterns, accounting for
location sources of ventilation and louvers. Consideration shall also be given to the possibility of mechanical
damage or contamination.
•At least one detector shall be installed in each machinery room or the occupied space being considered and/or
at the lowest underground room for refrigerants heavier than air and at the highest point for refrigerants lighter
than air.
•Detectors shall be continuously monitored for functioning. In the case of a detector failure, the emergency
sequence should be activated as if refrigerant had been detected.
•The pre-set value for the refrigerant detector at 30 °C or 0 °C, whichever is more critical, shall be set to 25 % of
the LFL. The detector shall continue to activate at higher concentrations.
Refrigerant
LFL
Pre-set alarm
R1234ze
0,303 kg/m3
0,07575 kg/m3
16500 ppm
•All electrical equipment (not only the refrigerating system) shall be selected to be suitable for use in the zones
identified in the risk assessment. Electrical equipment shall be deemed to comply with the requirements if the
electrical supply is isolated when the refrigerant concentration reaches 25 % of the lower flammable limit or
less.
•Machinery rooms or special machinery rooms shall be clearly marked as such on the entrances to the room,
together with warning notices indicating that unauthorized persons shall not enter and that smoking, naked light
or flames are prohibited. The notices shall also state that, in the event of an emergency, only authorized
persons conversant with emergency procedures shall decide whether to enter the machinery room. Additionally,
warning notices shall be displayed prohibiting unauthorized operation of the system.
•The owner / operator shall keep an updated logbook of the refrigerating system.
The optional leak detector supplied by DAE with the chiller should be used exclusively to
check refrigerant leakage from the chiller itself.

D-EIMWC01008-16_03EN - 11/35
3 RECEIVING THE UNIT
The unit must be inspected for any possible damage immediately upon reaching final place of installation. All components
described in the delivery note must be inspected and checked.
Should the unit be damaged, do not remove the damaged material and immediately report the damage to the transportation
company and request they inspect the unit..
Immediately report the damage to the manufacturer representative, a set of photographs are helpful in recognizing
responsibility
Damage must not be repaired before the inspection of the transportation company representative.
Before installing the unit, check that the model and power supply voltage shown on the nameplate are correct.
Responsibility for any damage after acceptance of the unit cannot be attributed to the manufacturer.
4 OPERATING LIMITS
4.1 Storing Storage
Environmental conditions must be within the following limits:
Minimum ambient temperature : 5°C
Maximum ambient temperature : 55°C
Maximum R.H. : 95% not condensing
Storing below the minimum temperature may cause damage to components. Storing above the maximum temperature
causes opening of safety valves. Storing in condensing atmosphere may damage electronic components.
4.2 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. The EWWH J - EWLH J - EWWS J –EWLS J
units are available in 7 standard sizes and for their nominal cooling capacities see tables.
The present installation manual describes the procedures for unpacking, installing, and connecting the EWWD J-EWLD J
units.
4.2.1 Options and features
Options
•Ampere and voltmeter
•Dual pressure relief valve on the condenser
•Low noise operation
•BMS-Connection (MODBUS, BACNET, LON)
•High temperature kit (only for EWWH J and EWLH J)
Features
•Glycol application for leaving evaporator water temperature down to –10°C (only for EWWD-EWLD-EWWS-
EWLS)
•Sight glass with moisture indication
•Voltage free contacts
ogeneral operation/pump contact
oalarm
•Changeable voltage free contacts
ocondenser pump
•Changeable remote inputs
oremote start/stop
odual setpoint
oenable/disable capacity limitation
•Changeable analog input
oSetpoint override 4/20 mA
•Multiple language selection
•Filter kit for installation in front of the evaporator water (supplied accessories)
Operation is allowed within the following limits:

D-EIMWC01008-16_03EN - 12/35
4.2.2 Operation range
•EWWD J
1. Operation with Glycol (below 4°C Evap LWT)
•EWLD J
1. Operation with Glycol (below 4°C Evap LWT)

D-EIMWC01008-16_03EN - 13/35
•EWWH J
1. Operation with Glycol (below 4°C Evap LWT)
2. Option111 and operation with Glycol (below 4°C Evap LWT)
3. Option111
4. Option 111 + Option 189
5. Option 189
•EWLH J
1. Operation with Glycol (below 4°C Evap LWT
2. Option111 and operation with Glycol (below 4°C Evap LWT)
3. Option111
4. Option 111 + Option 189
5. Option 189

D-EIMWC01008-16_03EN - 14/35
•EWWS J
1. Operation with Glycol (below 4°C Evap LWT)
•EWLS J
1. Operation with Glycol (below 4°C Evap LWT)

D-EIMWC01008-16_03EN - 15/35
5 MECHANICAL INSTALLATION
5.1 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. In particular:
- the unit must be firmly anchored to the ground when it must not be moved;
- the unit can only be lifted using the lifting points marked in yellow fixed to its base;
- always protect operating personnel with personal protective equipment appropriate to the activities to be
performed. The individual devices commonly used are: helmet, glasses, gloves, headphones, safety shoes.
Further personal and collective protection devices must be adopted after having carried out an adequate analysis
of the specific risks in the relevant area, according to the activities to be carried out.
5.2 Moving and lifting
At delivery, the unit should be checked and any damage should be reported immediately to the carrier claims agent.
Figure 3–Lifting
When handling the unit, take into account the following:
1. List the unit preferably with a crane and belts in accordance with the instructions on the unit. The length of the
ropes (1) to be used for lifting are 4 m minimum each.
2. The unit is shipped with wooden beams (2) under it, these have to be removed before installation.
NOTE Try to reduce the drilling in the unit to a minimum. If drilling is unpreventable, remove the iron filling thoroughly in
order to prevent surface rust.
Consult the dimensional drawing for the hydraulic and electrical connection of the units.
The overall dimensions of the machine, as well as the weights described in this manual, are purely
indicative.
The contractual dimensional drawing and the related electrical scheme are delivered to the
customer when ordering.
The equipment, ropes, lifting accessories and handling procedures must comply with local regulations and current
regulations.
Use only lifting hooks with locking device. The hooks must be securely fixed before handling.
The lifting ropes, hooks and spacing bars must be strong enough to support the unit safely. Please check the unit weight
on the unit nameplate.
The installer has the responsibility to ensure the selection and correct use of the lifting equipment. However, it is advisable
to use ropes with a minimum vertical capacity equal to the total weight of the machine.
The machine must be lifted with the utmost attention and care following lifting label instructions; lift the unit very slowly,
keeping it perfectly level.

D-EIMWC01008-16_03EN - 16/35
5.3 Positioning and assembly
To unpack and place the unit follow the actions listed:
1. Remove the wooden beams from the unit.
2. Install vibration mountings in case of an installation where noise and vibration might an impediment.
3. 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:
1. The foundation is strong enough to support theweight of the unit and the floor is flat to prevent vibration and noise generation.
2. The space around the unit is adequate for servicing.
3. There is no danger of fire due to leakage of inflammable gas.
4. Select the location of the unit in such a way that the sound generated by to the unit does not disturb anyone.
5. Ensure that water cannotcause any damage to the location in case it drips out the unit.
NOTE
Pull-down operation is restricted to one hour maximum.
It is recommended to fix the unit on a concrete base with anchor bolts.
1. Anchor bolt
2. Washer
3. Rubber plate
4. Row cork or rubber sheet
5. Ground
6. Concrete floor
7. Ditch
Figure 4–Unit Levelling
•Fix anchor bolts into the concrete foundation. When finally fixing the unit by means of these anchor bolts, make
sure that the washers for channel DIN434, and both field supplied rubber plates and field supplied raw cork or
rubber sheets for better vibration protection, are installed as indicated.
•The concrete foundation should approximately be 100 mm higher than the floor level for ease of plumbing work
and better drain.
Model
A
Anchor bolt
Size
Qty
EWWD120J~180J
EWLD110J~165J
EWWH090J-130J
EWLH080J-130J
EWWS120J-180J
EWLS110J-170J
300
M20x200
4
EWWD210J~280J
EWLD195J~265J
EWWH150J-200J
EWLH140J-190J
EWWS200J-270J
350
M20x200
4
5.4 Noise and Sound protection
The unit is a source of noise mainly due to rotation of compressors.
The noise level for each model size is listed in sales documentation.
If the unit is correctly installed, operated and maintained the noise emission level do not require any special protection
device to operate continuously close to the unit without any risk.

D-EIMWC01008-16_03EN - 17/35
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.
5.5 Water piping
Piping must be designed with the lowest number of elbows and the lowest number of vertical changes of direction. In this
way, installation costs are reduced considerably, and system performance is improved.
The water system must have:
1. Anti-vibration mountings to reduce transmission of vibrations to the structures.
2. Isolating valves to isolate the unit from the water system during maintenance.
3. To protect the unit, the BPHE must be protected against freezing by continuous monitoring of the water flow in the
BPHE by a flow switch. In most cases, on site, the flow switch is set to generate an alarm only when the water pump
turns off and the water flow drops to zero. It is recommended to adjust the flow switch to produce a "Water Leakage
Alarm" when the water flow reaches the minimum value of the flow allowable (see table 1); in this case the BPHE is
protected against freezing and the flow switch can detect the clogging of the water filter.
4. Manual or automatic air venting device at the system highest point and drain device at the system lowest point.
5. Neither the BPHE nor the heat recovery device must be positioned at the system’s highest point.
6. A suitable device that can maintain the water system under pressure (expansion tank, etc.).
7. Water temperature and pressure indicators to assist the operator during service and maintenance.
8. A filter or device that can remove particles from the fluid. The use of a filter extends the life of the BPHE and pump and
helps to keep the water system in a better condition. The water filter must be installed as close as possible to the
unit. If the water filter is installed in another part of the water system, the Installer must guarantee the cleaning of the
water pipes between the water filter and the BPHE.
Recommended maximum opening for strainer mesh is:
•0.87 mm (DX S&T)
•1.0 mm (BPHE)
•1.2 mm (Flooded)
Precautions for correct use:
9. BPHE has an electrical resistance with a thermostat that ensures protection against water freezing at ambient
temperatures as low as -18°C.
All the other water piping/devices outside the unit must therefore be protected against freezing.
10.The heat recovery device must be emptied of water during the winter season, unless an ethylene glycol mixture in
appropriate percentage is added to the water circuit.
11.If case of unit substitution, the entire water system must be emptied and cleaned before the new unit is installed.
Regular tests and proper chemical treatment of water are recommended before starting up the new unit.
12.If glycol is added to the water system as anti-freeze protection, pay attention to the fact that suction pressure will be
lower, the unit performance will be lower and water pressure drops will be greater. All unit-protection systems, such as
anti-freeze, and low-pressure protection will have to be readjusted.
13.Before insulating water piping, check that there are no leaks. The complete hydraulic circuit must be insulated to prevent
condensation and reduced refrigeration capacity. Protect the water pipes from frost during winter (using for example a
glycol solution or a heating cable).
14.Check that the water pressure does not exceed the design pressure of the water side heat exchangers. Install a safety
valve on the water pipe downstream of the BPHE.
5.5.1 Water piping installation procedure
The units are equipped with a water inlet and water outlet for connection to a chiller water circuit. This circuit must be
provided by a licensed technician and must comply with all relevant European and national regulations.
If air or dirt gets in the water circuit, problems may occur. Therefore, always take into account the
following when connecting the water circuit.
1. Use clean pipes only.
2. Hold the pipe end downwards when removing burrs.
3. Cover the pipe end when inserting it through a wall so that no dust and dirt enter
1. Preparing the unit for connection to the water circuit. A box containing Victaulic®couplings and a filter is
delivered with the unit.

D-EIMWC01008-16_03EN - 18/35
1.
Water inlet of the evaporator
2.
Flow switch
3.
Inlet water sensor
4.
Water inlet pipe containing the flow switch and the water inlet temperature sensor
5.
Victaulic®coupling
6.
Counter pipe
7.
Field water pipe circuit
8.
Filter
9.
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.
Connecting the water inlet pipe containing the flow switch.
The water inlet pipe containing the flowswitch.is mounted on the side of the water inlet of the evaporator(s) and is pre-
insulated.Cut the tie wraps and fix the pipe with the supplied Victaulic®couplings to the evaporator inlet(s).
Connecting the water outlet pipe.
The water outlet pipe is mounted on the side of the water outlet of the evaporator and is pre-insulated. Cut the tie wraps
and fix the pipe(s) with the supplied Victaulic®couplings to the evaporator outlet(s).
After installation of the water inlet and outlet pipes and as a general rule for other units, it is recommended to check the
insertion depth of the water temperature sensors into the connection pipes prior the operation (see figure).
Connecting the filter
•The filter kit supplied with the unit must be installed in front of the evaporator water inlet by means of the
supplied Victaulic®couplings as shown in the figure. The filter has holes of diameter 1,0 mm and secures
the evaporator against clogging.
•Improper installation of the supplied filter will result in severe damage of the equipment (freezing of the
evaporator).
•A field supplied blow down port for flushing fluid and accumulated material from inside the filter can be
connected on the filter end cap.
Connecting the counter pipes
1. Weldthe suppliedcounterpipes to the endsof the water circuitand connect to the unit withthe provided Victaulic®
couplings.
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. The drain plug is provided to drain the condenser. When doing this, also
remove the air plugs (refer to the outlook diagram).
3. Air vent must be provided at all high points of the system. The vents should be located at points which are
easily accessible for servicing.
4. Shut-off valves should be provided at the unit so that normal servicing can be accomplished without draining
the system.
5. Vibration eliminators in all water piping connected to the chiller are recommended to avoid straining the piping
and transmitting vibration and noise.

D-EIMWC01008-16_03EN - 19/35
6. 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.
7. The insertion hole shall be 1/4” GAS female thread and should be located in the mixed waterflow of the chillers.
8. 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.
Choose the position of insertion in a way that the cable length of the sensor (10 m) is long enough.
5.5.2 Piping insulation
The complete water circuit, inclusive all piping, must be insulated to prevent condensation and reduction of the cooling
capacity.
Protect the water piping against water freezing during winter period (e.g., by using a glycol solution or heater tape).
5.6 Water flow and quality
To assure proper operation of the unit, the water flow through the evaporator must be within the operation range as
specified in the table below and a minimum water volume is required in the system.
Model
Minimum water flow
[l/min]
Maximum water flow
[l/min]
EWWD120J - EWLD110J
EWWH090J –EWLH080J
EWWS120J –EWLS110J
168
671
EWWD140J - EWLD130J
EWWH110J –EWLH100J
EWWS140J –EWLS130J
195
780
EWWD150J - EWLD145J
EWWH120J –EWLH110J
EWWS150J –EWLS150J
221
883
EWWD180J - EWLD165J
EWWH130J –EWLH130J
EWWS180J –EWLS170J
255
1021
EWWD210J - EWLD195J
EWWH150J –EWLH140J
EWWS210J –EWLS200J
290
1158
EWWD250J - EWLD235J
EWWH180J –EWLH170J
EWWS240J –EWLS240J
357
1428
EWWD280J - EWLD265J
EWWH120J –EWLH190J
EWWS270J –EWLS270J
397
1588
The minimum water volume v [l] in the system must fulfil the criteria below:
 
   
Q highest cooling capacity of the unit in lowest capacity step within the range of application (kW)
t antirecycling timer of unit (AREC)/2(s) = 300 s
C specific heat capacity of the fluidum (kJ/kg°C)=4,186 kJ/kg°C for water
∆T temperature difference between starting and stopping of the compressor:
∆T=a+2b+c
(for designation of a, b, and c, refer to the operation manual)
NOTE: For units in a double circuit configuration, the minimum required water volume in the system must equal the biggest
required minimum volume of every individual chiller in the system.

D-EIMWC01008-16_03EN - 20/35
The water quality must be in accordance with the specifications listed the table below
Table 1 - Acceptable water quality limits
DAE Water quality requirements
Shell&tube+
Flooded
BPHE
Ph (25 °C)
6.8 ÷ 8.4
7.5 –9.0
Electrical conductivity [μS/cm] (25°C)
< 800
< 500
Chloride ion [mg Cl- / l]
< 150
< 70 (HP1);
< 300 (CO2)
Sulphate ion [mg SO42- / l]
< 100
< 100
Alkalinity [mg CaCO3 / l]
< 100
< 200
Total Hardness [mg CaCO3 / l]
< 200
75 ÷ 150
Iron [mg Fe / l]
< 1
< 0.2
Ammonium ion [mg NH4+ / l]
< 1
< 0.5
Silica [mg SiO2 / l]
< 50
NO
Chlorine molecular (mg Cl2/l)
< 5
< 0.5
1: HP = Heat pump;
2: CO = Cooling only
The water pressure should not exceed the maximum working pressure of 10 bar.
Provide adequate safeguards in the water circuit to make sure that the water pressure will never
exceed the maximum allowable working pressure.
5.7 Evaporator and recovery exchangers anti-freeze protection
All BPHE are supplied with a thermostatically controlled anti-freeze electrical resistance, which provides adequate anti-
freeze protection at temperatures as low as -18°C.
However, unless the heat exchangers are completely empty and cleaned with anti-freeze solution, additional methods
should also be used against freezing.
The following protection methods must be considered when designing the system as a whole:
−continuous water flow circulation inside piping and exchangers;
−addition of an appropriate amount of glycol inside the water circuit or, as alternative, an additional heat insulation and
heating of exposed piping (internal and external to the unit);
−if the unit does not work during the winter season, emptying and cleaning of the heat exchanger.
It is the responsibility of the installer and/or of local maintenance personnel to ensure that described anti-freeze
methods are used. 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