Daikin EWAD E-SS Series User manual

Air-cooled single circuit screw chiller
EWAD100 ÷ 410 E
ERAD120 ÷ 490 E- (condensing unit)
50 Hz - Refrigerant R134a
Original Instructions
Installation, Operation and Maintenance Manual
D-EIMAC00708-16EN

D–EIMAC00708-16EN - 2/76
IMPORTANT
This Manual is a technical aid and does not represent a binding offer for Daikin.
Daikin has drawn up this Manual to the best of its knowledge. The content cannot be held as explicitly or implicitly
guaranteed as complete, precise or reliable.
All data and specifications contained herein may be modified without notice. The data communicated at the moment
of the order shall hold firm.
Daikin shall assume no liability whatsoever for any direct or indirect damage, in the widest sense of the term,
ensuing from or connected with the use and/or interpretation of this Manual.
The entire content is protected by Daikin copyright.
WARNING
Before starting the installation of the unit, please read this manual carefully. Starting up the unit is absolutely
forbidden if all instructions contained in this manual are not clear.
Key to symbols
Important note: failure to respect the instruction can damage the unit or compromise operation
Note regarding safety in general or respect of laws and regulations
Note regarding electrical safety
Description of the labels applied to the electrical panel
2÷4 fans unit 6 fans unit
Label Identification
1–Non flammable gas symbol
6–Electrical hazard symbol
2–Gas type
7–Hazardous Voltage warning
3–Unit nameplate data
8–Cable tightening warning
4–Manufacturer’s logo
9–Lifting instructions
5–Water circuit filling warning

D–EIMAC00708-16EN - 3/76
Index
General Information ............................................................................................................................................................ 6
Receiving the machine..................................................................................................................................................... 6
Checks..............................................................................................................................................................................6
Purpose of this Manual.....................................................................................................................................................6
Nomenclature ................................................................................................................................................................... 7
Operating limits ................................................................................................................................................................. 17
Storing ............................................................................................................................................................................17
Operation........................................................................................................................................................................ 17
Mechanical Installation..................................................................................................................................................... 19
Shipping..........................................................................................................................................................................19
Responsibility ................................................................................................................................................................. 19
Safety..............................................................................................................................................................................19
Moving and lifting............................................................................................................................................................ 20
Positioning and assembly............................................................................................................................................... 20
Minimum space requirements ........................................................................................................................................ 21
Sound protection ............................................................................................................................................................22
Water piping.................................................................................................................................................................... 22
Water treatment .......................................................................................................................................................23
Evaporator and recovery exchangers anti-freeze protection................................................................................... 24
Installing the flow switch .......................................................................................................................................... 24
Hydronic kit (optional)..............................................................................................................................................25
Refrigerating circuit safety valves...................................................................................................................................28
Guidelines forERAD E- Installation ................................................................................................................................. 30
Refrigerant piping design................................................................................................................................................30
Expansion valve .............................................................................................................................................................31
Refrigerant Chargie ........................................................................................................................................................31
Installation of evaporator fluid sensors........................................................................................................................... 32
Electrical installation ........................................................................................................................................................ 33
General specifications.................................................................................................................................................... 33
Electrical components .................................................................................................................................................... 38
Power circuit wiring......................................................................................................................................................... 38
Electrical heaters............................................................................................................................................................40
Electrical power supply to the pumps.............................................................................................................................40
Water pump control........................................................................................................................................................41
Unit On/ Off remote control –Electrical wiring...............................................................................................................41
Double Setpoint –Electrical wiring................................................................................................................................. 41
External water Setpoint reset –Electrical wiring (Optional) ........................................................................................... 41
Unit limitation –Electrical wiring (Optional)....................................................................................................................42
Operation............................................................................................................................................................................ 44
Operator’s responsibilities .............................................................................................................................................. 44
Description of the machine............................................................................................................................................. 44
Description of the chilling cycle......................................................................................................................................44
EWAD E-SS/SL .......................................................................................................................................................44
ERAD E-SS/SL ........................................................................................................................................................48
Description of the chilling cycle with heat recovery........................................................................................................50
Controlling the partial recovery circuit and installation recommendations............................................................... 50
Compressor....................................................................................................................................................................55
Compression process.....................................................................................................................................................55
Cooling capacity control .................................................................................................................................................57
Pre-startup checks............................................................................................................................................................ 58
Units with an external water pump ................................................................................................................................. 59
Units with a built-in water pump .....................................................................................................................................59
Electrical power supply...................................................................................................................................................59
Unbalance in power supply voltage................................................................................................................................59
Electrical heater power supply .......................................................................................................................................60
Startup procedure ............................................................................................................................................................. 61
Turning on the machine..................................................................................................................................................61
Seasonal shutdown........................................................................................................................................................ 62
Starting up after seasonal shutdown..............................................................................................................................62
System maintenance......................................................................................................................................................... 63
General...........................................................................................................................................................................63
Compressor maintenance ..............................................................................................................................................63
Lubrication......................................................................................................................................................................64
Routine maintenance......................................................................................................................................................65
Dehydration filter replacement ....................................................................................................................................... 65
Dehydration filter cartridge replacement procedure.......................................................................................................65

D–EIMAC00708-16EN - 4/76
Oil filter replacement....................................................................................................................................................... 66
Oil filter replacement procedure ..................................................................................................................................... 66
Refrigerant charge..........................................................................................................................................................67
Refrigerant replenishment procedure.............................................................................................................................68
Standard Checks ............................................................................................................................................................... 69
Temperature and pressure transducers.........................................................................................................................69
Test sheet........................................................................................................................................................................... 70
Fluid side measurements............................................................................................................................................... 70
Refrigerant side measurements.....................................................................................................................................70
Electrical measurements................................................................................................................................................ 70
Service and limited warranty............................................................................................................................................ 71
Periodic obligatory checks and starting up of appliances under pressure................................................................ 71
Important information regarding the refrigerant used .................................................................................................. 71
Disposal.......................................................................................................................................................................... 73
Index of tables
Table 1 –EWAD 100E÷180E -SS - HFC 134a - Technical Data..........................................................................................8
Table 2 –EWAD 210E÷410E-SS - HFC 134a - Technical Data...........................................................................................9
Table 3 –EWAD 100E÷180E-SL - HFC 134a - Technical Data.........................................................................................10
Table 4 –EWAD 210E÷400E-SL - HFC 134a - Technical Data.........................................................................................11
Table 5 - ERAD 120E÷220E-SS - HFC 134a - Technical Data ......................................................................................... 12
Table 6 - ERAD 250E÷490E-SS - HFC 134a - Technical Data ......................................................................................... 13
Table 7 –ERAD 120E÷210E-SL - HFC 134a - Technical Data.......................................................................................... 14
Table 8 –ERAD 240E÷460E-SL - HFC 134a - Technical Data..........................................................................................15
Table 9 - Sound levels EWAD E-SS –ERAD E-SS............................................................................................................16
Table 10 - Sound levels EWAD E-SL –ERAD E-SL ..........................................................................................................16
Table 11 - Acceptable water quality limits........................................................................................................................... 24
Table 12 - Recomandend maximum equivalent length (m) for Suction line ....................................................................... 30
Table 13 - Recomandend maximum equivalent length (m) for Liquid line..........................................................................30
Table 14 –Refrigerant charge for (m) of Liquid ans suction line line ................................................................................. 31
Table 15 - Electrical Data EWAD 100E÷180E -SS............................................................................................................. 34
Table 16 - Electrical Data EWAD 210E÷410E-SS..............................................................................................................34
Table 17 - Electrical Data EWAD 100E÷180E-SL ..............................................................................................................35
Table 18 - Electrical Data EWAD 210E÷400E-SL ..............................................................................................................35
Table 19 - Electrical Data ERAD 120E÷220E-SS............................................................................................................... 36
Table 20 - Electrical Data ERAD 250E÷490E-SS............................................................................................................... 36
Table 21 - Electrical Data ERAD 120E÷210E-SL ............................................................................................................... 37
Table 22 - Electrical Data ERAD 240E÷460E-SL ...............................................................................................................37
Table 23 - Recommended Fuses and Field Wire Sizing..................................................................................................... 38
Table 24 - Electrical data for optional pumps......................................................................................................................41
Table 25 - Typical working conditions with compressors at 100%...................................................................................... 61
Table 26 - Routine maintenance programme......................................................................................................................65
Table 27 - Pressure/ Temperature ......................................................................................................................................68
Index of figures
Figure 1 - Nomenclature........................................................................................................................................................7
Figure 2 - Operating limits –EWAD E-SS/SL.....................................................................................................................18
Figure 3 - Operating limits –ERAD E-SS/SL......................................................................................................................18
Figure 4 - Lifting the unit......................................................................................................................................................20
Figure 5 - Minimum space requirements for machine maintenance...................................................................................21
Figure 6 - Minimum recommended installation distances................................................................................................... 22
Figure 7 - Water piping connection for evaporator..............................................................................................................23
Figure 8 - Water piping connection for heat recovery exchangers ..................................................................................... 23
Figure 9 - Adjusting the safety flow switch.......................................................................................................................... 24
Figure 10 - Single- and twin-pump hydronic kit...................................................................................................................25
Figure 11 –EWAD E SS/SL - Available external lift for water pumps kit (option on request) - Low lift single pump......... 26
Figure 12 –EWAD E SS/SL - Available external lift for water pumps kit (option on request) - High lift single pump........26
Figure 13 –EWAD E SS/SL - Available external lift for water pumps kit (option on request) - Low lift twin pump............ 27
Figure 14 –EWAD E SS/SL - Available external lift for water pumps kit (option on request) - High lift twin pump ........... 27
Figure 15 - Evaporator pressure drop - EWAD E SS/SL ....................................................................................................28
Figure 16 - Heat recovery pressure drop - EWAD E SS/SL ...............................................................................................29

D–EIMAC00708-16EN - 5/76
Figure 17 - Installation of long power supply wires ............................................................................................................. 38
Figure 18 - User connection to the interface M3 terminal boards.......................................................................................43
Figure 19 - EWAD E SS/SL - Not economised refrigerante circuit....................................................................................46
Figure 20 - EWAD E SS/SL - Economised refrigerante circuit ......................................................................................... 47
Figure 21 –ERAD E SS/SL - Not economised refrigerante circuit.....................................................................................48
Figure 22 –ERAD E SS/SL - Economised refrigerante circuit ...........................................................................................49
Figure 23 - EWAD E SS/SL - Heat recovery refrigerante circuit - Not Economised units ................................................ 51
Figure 24 - EWAD E SS/SL - Heat recovery refrigerante circuit - Economised units....................................................... 52
Figure 25 –EWAD E SS/SL - Heat recovery refrigerante circuit - Not Economised units .................................................53
Figure 26 –ERAD E SS/SL - Heat recovery refrigerante circuit - Economised units......................................................... 54
Figure 27 - Picture of Fr3100 compressor ..........................................................................................................................55
Figure 28 - Picture of F3 compressor..................................................................................................................................55
Figure 29 - Compression process.......................................................................................................................................56
Figure 30 - Capacity control mechanism for Fr3100 compressor....................................................................................... 57
Figure 31 - Capacity control mechanism for F3 compressor..............................................................................................57
Figure 32 - Installation of control devices for Fr3100 compressor...................................................................................... 64
Figure 33 - Installation of control devices for F3 compressor ............................................................................................. 64

D–EIMAC00708-16EN - 6/76
General Information
ATTENTION
The units described in the present manual represent a high value investment, maximum care should be taken to
ensure correct installation and appropriate working conditions.
Installation and maintenance must be performed by qualified and specifically trained personnel only.
Correct maintenance of the unit is indispensable for its safety and reliability. Manufacturer’s service centres are the
only having adequate technical skill for maintenance.
ATTENTION
This manual provides information about the features and standard procedure for the complete series.
All units are delivered from the factory complete with wiring diagrams and dimensional drawings including size and
weight for each model.
WIRING DIAGRAMS AND DIMENSIONAL DRAWINGS MUST BE CONSIDERED ESSENTIAL DOCUMENTS OF
THIS MANUAL
In case of any discrepancy between this manual and the equipment’s document please refer to the wiring diagram
and dimensional drawings.
Receiving the machine
The machine must be inspected for any possible damage immediately upon reaching its final place of installation. All
components described in the delivery note must be carefully verified and checked; any damage must be reported to the
transporter. Check on the machine nameplate, before connecting it to earth, that the model and power supply voltage are
as ordered. Responsibility for any damage after acceptance of the machine cannot be attributed to the manufacturer.
Checks
Please perform the following checks upon receipt of the machine, for your protection in the event that it is incomplete
(any missing parts) or has incurred damage during transport:
a) Before accepting the machine, please verify every single component in the consignment. Check for any
damage.
b) In the event that the machine has been damaged, do not remove the damaged material. A set of photographs
are helpful in ascertaining responsibility.
c) Immediately report the extent of the damage to the trasnporter and immediately request that they inspect the
machine.
d) Immediately report the extent of the damage to the manufacturer representative, so that arrangements can be
made for the required repairs. In no case must the damage be repaired before the machine has been inspected
by the representative of the transportation company.
Purpose of this Manual
The purpose of this Manual is to allow the installer and the qualified operator to carry out all required operations in order
to ensure proper installation and maintenance of the machine, without risking any damage to people, animals and/or
objects.
This Manual is an important supporting document for qualified personnel but it is not intended to replace such personnel.
All activities must be carried out in compliance with local laws and regulations.

D–EIMAC00708-16EN - 7/76
Nomenclature
E W A D 1 0 0 E - S S 0 0 1
12345678910 11 12 13 14
Machine type
EWA = Air-cooled chiller, cooling only
EWY = Air-cooled chiller, heat pump
EWL = Remote condenser chiller
ERA = Air cooled condensing unit
EWW = Water-cooled chiller, cooling only
EWC = Air-cooled chiller, cooling only with centrifugal fan
EWT = Air-cooled chiller, cooling only with heat recovery
Refrigerant
D = R-134a
P = R-407c
Q = R-410a
Capacity class in kW (Cooling)
Always 3-digit code
Idem as previous
Model series
Letter A, B,… : major modification
Inverter
- = Non-inverter
Z = Inverter
Efficiency level (McQuay code)
S = Standard efficiency (SE)
X = High efficiency (XE) (N.A for this range)
P = Premium efficiency (PE) (N.A for this range)
H = High ambient (HA) (N.A for this range)
Sound level (McQuay code)
S = Standard noise (ST)
L = Low noise (LN)
R = Reduced noise (XN) (N.A for this range)
X = Extra low noise (XXN) (N.A for this range)
C = Cabinet (CN) (N.A for this range)
Warranty
0 = 1 year of warranty
B = 2 years of warranty
C = 3 years of warranty
…= ... years of warranty
Sequential number
000 = Base model
001 = First order for this model (1 or more units)
002 = Second order for this model (1 or more units)
…= ... order for this model
B01 = First order for this model + 1year warranty
B02 = Second order for this model (1 or more units)
…= ... order for this model
Figure 1 - Nomenclature

D–EIMAC00708-16EN - 8/76
Table 1 –EWAD 100E ÷ 180E-SS - HFC 134a - Technical Data
Unit SIze
100
120
140
160
180
Capacity (1)
Cooling
kW
101
121
138
163
183
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
38.7
46.9
53.4
60.3
68.5
EER (1)
---
2.61
2.57
2.58
2.70
2.67
ESEER
---
2.93
2.93
2.75
2.93
2.81
IPLV
---
3.36
3.25
2.98
3.13
3.25
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
1292
1292
1292
1292
Length
mm
2165
2165
3065
3065
3965
Weight
Unit
kg
1651
1684
1806
1861
2023
Operating Weight
kg
1663
1699
1823
1881
2047
Water heat
exchanger
Type
---
Plate to Plate
Water volume
l
12
15
17
20
24
Nominal water flowrate
l/s
4.83
5.76
6.58
7.77
8.74
Nominal Water pressure drop
kPa
24
25
24
24
22
Insulation material
Closed cell
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
10922
10575
16383
15863
21844
Model
Quantity
No.
2
2
3
3
4
Speed
rpm
920
920
920
920
920
Motor input
kW
1.75
1.75
1.75
1.75
1.75
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge
l
13
13
13
13
13
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
91.5
91.5
92.3
92.3
93.0
Sound Pressure (2)
Cooling
dB(A)
73.5
73.5
73.7
73.7
73.9
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge
kg.
18
21
23
28
30
N. of circuits
No.
1
1
1
1
1
Piping connections
Evaporator water inlet/outlet
"
3
3
3
3
3
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator
12/7°C; ambient 35°C, unit at full load operation.
Notes (2)
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.

D–EIMAC00708-16EN - 9/76
Table 2 - EWAD 210E ÷ 410E-SS - HFC 134a - Technical Data
Unit SIze
210
260
310
360
410
Capacity (1)
Cooling
kW
214
256
307
360
413
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
71.7
86.7
111
133
146
EER (1)
---
2.98
2.95
2.77
2.71
2.84
ESEER
---
3.02
3.18
3.05
3.23
3.34
IPLV
---
3.48
3.68
3.57
3.61
3.65
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2223
2223
2223
2223
Width
mm
1292
2236
2236
2236
2236
Length
mm
3965
3070
3070
3070
3070
Weight
Unit
kg
2086
2522
2745
2855
2919
Operating Weight
kg
2116
2547
2775
2891
2963
Water heat
exchanger
Type
---
Plate to Plate
Water volume
l
30
25
30
36
44
Nominal water flowrate
l/s
10.22
12.22
14.65
17.21
19.74
Nominal Water pressure drop
kPa
21
48
48
48
45
Insulation material
Closed cell
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
21150
32767
32767
31725
31725
Model
Quantity
No.
4
6
6
6
6
Speed
rpm
920
920
920
920
920
Motor input
kW
1.75
1.75
1.75
1.75
1.75
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge
l
13
16
19
19
19
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
94.2
94.2
94.5
94.5
95.2
Sound Pressure (2)
Cooling
dB(A)
75.1
75.0
75.3
75.3
76.0
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge
kg.
33
46
46
56
60
N. of circuits
No.
1
1
1
1
1
Piping connections
Evaporator water inlet/outlet
"
3
3
3
3
3
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator
12/7°C; ambient 35°C, unit at full load operation.
Notes (2)
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.

D–EIMAC00708-16EN - 10/76
Table 3 –EWAD 100E ÷ 180E-SL –HFC134a - Technical Data
Units Size
100
120
130
160
180
Capacity (1)
Cooling
kW
97.9
116
134
157
177
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
38.8
47.9
53.0
60.6
67.8
EER (1)
---
2.52
2.42
2.53
2.60
2.61
ESEER
---
3.01
2.97
2.85
3.00
3.07
IPLV
---
3.32
3.21
3.30
3.46
3.28
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
1292
1292
1292
1292
Length
mm
2165
2165
3065
3065
3965
Weight
Unit
kg
1751
1784
1906
1961
2123
Operating Weight
kg
1766
1799
1923
1981
2147
Water heat
exchanger
Type
---
Plate to Plate
Water volume
l
12
15
17
20
24
Nominal water flowrate
l/s
4.68
5.54
6.40
7.51
8.47
Nominal Water pressure drop
kPa
23
23
23
23
21
Insulation material
Closed cell
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
8372
8144
12558
12217
16744
Model
Quantity
No.
2
2
3
3
4
Speed
rpm
715
715
715
715
715
Motor input
kW
0.78
0.78
0.78
0.78
0.78
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge
l
13
13
13
13
13
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
89.0
89.0
89.8
89.8
90.5
Sound Pressure (2)
Cooling
dB(A)
71.0
71.0
71.2
71.2
71.4
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge
kg.
18
21
23
28
30
N. of circuits
No.
1
1
1
1
1
Piping connections
Evaporator water inlet/outlet
"
3
3
3
3
3
Safety devices
Highdischarge pressure (pressure switch)
High discharge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator
12/7°C; ambient 35°C, unit at full load operation.
Notes (2)
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.

D–EIMAC00708-16EN - 11/76
Table 4 –EWAD 210E ÷ 400E-SL - HFC 134a - Technical Data
Units Size
210
250
300
350
400
Capacity (1)
Cooling
kW
209
249
296
345
398
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
72.1
84.5
110
134
150
EER (1)
---
2.89
2.95
2.69
2.58
2.65
ESEER
---
3.32
3.55
3.41
3.34
3.45
IPLV
---
3.48
3.86
3.75
3.63
3.76
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2223
2223
2223
2223
Width
mm
1292
2236
2236
2236
2236
Length
mm
3965
3070
3070
3070
3070
Weight
Unit
kg
2186
2633
2856
2966
3029
Operating Weight
kg
2216
2658
2886
3002
3073
Water heat
exchanger
Type
---
Plate to Plate
Water volume
l
30
25
30
36
44
Nominal water flowrate
l/s
9.97
11.90
14.15
16.50
19.01
Nominal Water pressure drop
kPa
20
46
45
44
42
Insulation material
Closed cell
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
16289
25117
25117
24433
24433
Model
Quantity
No.
4
6
6
6
6
Speed
rpm
715
715
715
715
715
Motor input
kW
0.78
0.78
0.78
0.78
0.78
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge
l
13
16
19
19
19
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
91.7
91.7
92.0
92.0
92.7
Sound Pressure (2)
Cooling
dB(A)
72.6
72.5
72.8
72.8
73.5
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge
kg.
33
46
46
56
60
N. of circuits
No.
1
1
1
1
1
Piping connections
Evaporator water inlet/outlet
"
3
3
3
3
3
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator
12/7°C; ambient 35°C, unit at full load operation.
Notes (2)
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.

D–EIMAC00708-16EN - 12/76
Table 5 –ERAD 120E ÷ 220E-SS - HFC 134a - Technical Data
Units Size
120
140
170
200
220
Capacity (1)
Cooling
kW
121
144
165
196
219
Capacity control
Type
---
Stepless
Minimum capacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
41.8
51.0
57.4
65.2
73.7
EER (1)
---
2.90
2.83
2.87
3.00
2.97
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
1292
1292
1292
1292
Length
mm
2165
2165
3065
3065
3965
Weight
Unit
kg
1561
1584
1700
1741
1894
Operating Weight
kg
1591
1617
1768
1781
1936
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
10922
10575
16383
15863
21844
Model
Quantity
No.
2
2
3
3
4
Speed
rpm
920
920
920
920
920
Motor input
kW
1.75
1.75
1.75
1.75
1.75
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge (3)
l
13
13
13
13
13
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
91.5
91.5
92.3
92.3
93.0
Sound Pressure (2)
Cooling
dB(A)
73.5
73.5
73.7
73.7
73.9
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge (3)
kg.
17
20
22
27
29
N. of circuits
No.
1
1
1
1
1
Piping connections
Suction
mm
76
76
76
76
76
Liquid
mm
28
28
28
28
28
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: SST 7°C;
ambient 35°C, unit at full loadoperation.
Notes (2)
The values are accordingto ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Refrigerant and oil charge is for the unit only; doesn't include external suction and liquid line. Units are
shipped without refrigerant and oil charge; holding charge nitrogen 1 bar

D–EIMAC00708-16EN - 13/76
Table 6 –ERAD 250E ÷ 490E-SS - HFC 134a - Technical Data
Units Size
250
310
370
440
490
Capacity (1)
Cooling
kW
252
306
370
435
488
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
76.6
92.8
122
147
161
EER (1)
---
3.28
3.30
3.04
2.96
3.03
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
2236
2236
2236
2236
Length
mm
3965
3070
3070
3070
3070
Weight
Unit
kg
1936
2353
2557
2640
2679
Operating Weight
kg
1981
2414
2621
2713
2756
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
21150
32767
32767
31725
31725
Model
Quantity
No.
4
6
6
6
6
Speed
rpm
920
920
920
920
920
Motor input
kW
1.75
1.75
1.75
1.75
1.75
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge (3)
l
13
16
19
19
19
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
94.2
94.2
94.5
94.5
95.2
Sound Pressure (2)
Cooling
dB(A)
75.1
75.0
75.3
75.3
76.0
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge (3)
kg.
32
45
45
54
58
N. of circuits
No.
1
1
1
1
1
Piping connections
Suction
mm
76
76
139.7
139.7
139.7
Liquid
mm
28
35
35
35
35
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: SST 7°C;
ambient 35°C, unit at full load operation.
Notes (2)
The values are accordingto ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Refrigerant and oil charge is for the unit only; doesn't include external suction and liquid line. Units are
shipped without refrigerant and oil charge; holding charge nitrogen 1 bar

D–EIMAC00708-16EN - 14/76
Table 7 –ERAD 120E ÷ 210E-SL - HFC 134a - Technical Data
Units Size
120
140
160
190
210
Capacity (1)
Cooling
kW
116
137
159
187
209
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
42.3
52.5
57.6
66.3
73.9
EER (1)
---
2.74
2.61
2.75
2.82
2.83
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
1292
1292
1292
1292
Length
mm
2165
2165
3065
3065
3965
Weight
Unit
kg
1658
1684
1795
1841
1991
Operating Weight
kg
1688
1717
1830
1881
2033
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
8372
8144
12558
12217
16744
Model
Quantity
No.
2
2
3
3
4
Speed
rpm
715
715
715
715
715
Motor input
kW
0.78
0.78
0.78
0.78
0.78
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge (3)
l
13
13
13
13
13
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
89.0
89.0
89.8
89.8
90.5
Sound Pressure (2)
Cooling
dB(A)
71.0
71.0
71.2
71.2
71.4
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge (3)
kg.
17
20
22
27
29
N. of circuits
No.
1
1
1
1
1
Piping connections
Suction
mm
76
76
76
76
76
Liquid
mm
28
28
28
28
28
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: SST 7°C;
ambient 35°C, unit at full loadoperation.
Notes (2)
The values are accordingto ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Refrigerant and oil charge is for the unit only; doesn't include external suction and liquid line. Units are
shipped without refrigerant and oil charge; holding charge nitrogen 1 bar

D–EIMAC00708-16EN - 15/76
Table 8 –ERAD 240E ÷ 460E-SL - HFC 134a - Technical Data
Units Size
240
300
350
410
460
Capacity (1)
Cooling
kW
243
295
352
409
462
Capacity control
Type
---
Stepless
Minimumcapacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
78.2
91.5
122.4
150.1
167.2
EER (1)
---
3.11
3.23
2.88
2.73
2.76
Casing
Colour
---
IvoryWhite
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
2236
2236
2236
2236
Length
mm
3965
3070
3070
3070
3070
Weight
Unit
kg
2036
2455
2662
2755
2789
Operating Weight
kg
2081
2516
2726
2828
2886
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
16289
25117
25117
24433
24433
Model
Quantity
No.
4
6
6
6
6
Speed
rpm
715
715
715
715
715
Motor input
kW
0.78
0.78
0.78
0.78
0.78
Compressor
Type
---
Semi-hermetic
single screwcompressor
Oil charge (3)
l
13
16
19
19
19
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
91.7
91.7
92.0
92.0
92.7
Sound Pressure (2)
Cooling
dB(A)
72.6
72.5
72.8
72.8
73.5
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a
R-134a
R-134a
Refrigerant charge (3)
kg.
32
45
45
54
58
N. of circuits
No.
1
1
1
1
1
Piping connections
Suction
mm
76
76
139.7
139.7
139.7
Liquid
mm
28
35
35
35
35
Safety devices
Highdischarge pressure (pressure switch)
Highdischarge pressure (pressure transducer)
Lowsuction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Lowoil pressure
Lowpressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: SST 7°C;
ambient 35°C, unit at full loadoperation.
Notes (2)
The values are accordingto ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Refrigerant and oil charge is for the unit only; doesn't include external suction and liquid line. Units are
shipped without refrigerant and oil charge; holding charge nitrogen 1 bar

D–EIMAC00708-16EN - 16/76
Table 9 - Sound levels EWAD E-SS –ERAD E-SS
Unit
size
EWA
D
Unit
size
ERA
D
Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa)
Power
63 Hz
125 Hz
250 Hz
500 Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
dB(A)
dB(A)
100
120
75.5
70.8
68.9
75.3
64.3
61.7
53.0
47.3
73.5
91.5
120
140
75.5
70.8
68.9
75.3
64.3
61.7
53.0
47.3
73.5
91.5
140
170
75.7
71.0
69.1
75.5
64.5
61.9
53.2
47.5
73.7
92.3
160
200
75.7
71.0
69.1
75.5
64.5
61.9
53.2
47.5
73.7
92.3
180
220
75.9
71.2
69.3
75.7
64.7
62.1
53.4
47.7
73.9
93.0
210
250
77.1
72.4
70.5
76.9
65.9
63.3
54.6
48.9
75.1
94.2
280
310
77.0
72.3
70.4
76.8
65.8
63.2
54.5
48.8
75.0
94.2
310
370
77.3
72.6
70.7
77.1
66.1
63.5
54.8
49.1
75.3
94.5
360
440
77.3
72.6
70.7
77.1
66.1
63.5
54.8
49.1
75.3
94.5
410
490
78.0
73.3
71.4
77.8
66.8
64.2
55.5
49.8
76.0
95.2
Note: The values are according to ISO 3744 and are referred to units without pumps kit.
Table 10 - Sound levels EWAD E-SL –ERAD E-SL
Unit
size
EWA
D
Unit
size
ERA
D
Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa)
Power
63 Hz
125 Hz
250 Hz
500 Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
dB(A)
dB(A)
100
120
73.0
68.3
66.4
72.8
61.8
59.2
50.5
44.8
71.0
89.0
120
140
73.0
68.3
66.4
72.8
61.8
59.2
50.5
44.8
71.0
89.0
130
160
73.2
68.5
66.6
73.0
62.0
59.4
50.7
45.0
71.2
89.8
160
190
73.2
68.5
66.6
73.0
62.0
59.4
50.7
45.0
71.2
89.8
180
210
73.4
68.7
66.8
73.2
62.2
59.6
50.9
45.2
71.4
90.5
210
240
74.6
69.9
68.0
74.4
63.4
60.8
52.1
46.4
72.6
91.7
250
300
74.5
69.8
67.9
74.3
63.3
60.7
52.0
46.3
72.5
91.7
300
350
74.8
70.1
68.2
74.6
63.6
61.0
52.3
46.6
72.8
92.0
350
410
74.8
70.1
68.2
74.6
63.6
61.0
52.3
46.6
72.8
92.0
400
460
75.5
70.8
68.9
75.3
64.3
61.7
53.0
47.3
73.5
92.7
Note: The values are according to ISO 3744 and are referred to units without pumps kit.

D–EIMAC00708-16EN - 17/76
Operating limits
Storing
The environment conditions have to be in the following limits:
Minimum ambient temperature : -20°C
Maximum ambient temperature : 57°C
Maximum R.H. : 95% not condensing
ATTENTION
Storing below the minimum temperature above mentioned may cause damage to components such as the electronic
controller and its LCD display.
WARNING
Storing above the maximum temperature cause opening of the safety valves on the compressors’suction line.
ATTENTION
Storing in condensing atmosphere may damage the electronic components.
Operation
Operation is allowed within the limits mentioned in the following diagrams.
ATTENTION
Operation out of the mentioned limits may damage the unit.
For any doubts contact the factory.

D–EIMAC00708-16EN - 18/76
Figure 2 - Operating limits –EWAD E-SS/SL
Figure 3 - Operating limits –ERAD E-SS/SL
Check on rating tables for actual operating limit at full load.
Evap Leaving Water Temperature (°C)
Ambient Temperature (°C)
Speedtroll required
(below -10°C Amb.)
Temp )
Fan Speed
Modulation required
(below 18°C Amb.
Temp for less than
3 fans units, below
10°C for 3 or more
fans units)
COMP FULL LOAD ONLY
Above this line
(ICE Mode)
Operation with
Glycol
(below 4°C Evap
LWT)
Saturated Suction Temperature (°C)
Ambient Temperature (°C)
Speedtroll required
(below -10°C Amb.)
Fan Speed
Modulation required
(below 18°C Amb.
Temp for less than
3 fans units, below
10°C for 3 or more
fans units)
COMP FULL LOAD ONLY
Above this line
(ICE Mode)
Frost protection
required
(below 0°C)

D–EIMAC00708-16EN - 19/76
Mechanical Installation
Shipping
The stability of the machine during shipping must be ensured. If the machine is shipped with a wooden cross-plank on its
base, this cross-plank must only be removed after the final destination has been reached.
Responsibility
The manufacturer declines all present and future responsibility for any damage to persons, animals or things caused by
negligence of operators failing to follow the installation and maintenance instructions in this Manual.
All safety equipment must be regularly and periodically checked in accordance with this manual and with local laws and
regulations regarding safety and environment protection.
Safety
The machine must be securely fixed to the ground.
It is essential to observe the following instructions:
- The machine can only be lifted using the hoist points marked in yellow that are fixed to its base. These are the only
points that can support the entire weight of the unit.
- Do not allow unauthorised and/or unqualified personnel access to the machine.
- It is forbidden to access the electrical components without having opened the machine’s main switch and switched off
the power supply.
- It is forbidden to access the electrical components without using an insulating platform. Do not access the electrical
components if water and/or moisture are present.
- All operations on the refrigerant circuit and on components under pressure must be carried out only by qualified
personnel.
- Replacement of a compressor or addition of lubricating oil must be carried out only by qualified personnel.
- Sharp edges and the surface of the condenser section could cause injury. Avoid direct contact.
- Switch off the machine’s power supply, by opening the main switch, before servicing the cooling ventilators and/or
compressors. Failure to observe this rule could result in serious personal injury.
- Avoid introducing solid objects into the water pipes while the machine is connected to the system.
- A mechanical filter must be applied to the water pipe to be connected to the heat exchanger inlet.
- The machine is supplied with safety valves, that are installed both on the high-pressure and on the low-pressure sides
of the refrigerant gas circuit.
-In case of sudden stop of the unit, follow the instructions on the ControlPanelOperatingManual which is part of the
on-board documentation delivered to the end user with this manual.
-It is recommended to perform installation and maintenance with other people. In case of accidental injury or unease,
it is necessary to:
-keep calm
-press the alarm button if present in the installation site
-move the injured person in a warm place far from the unit and in rest position
-contact immediately emergency rescue personnel of the building or if the Health Emergency Service
-wait without leaving the injured person alone until the rescue operators come
-give all necessary information to the the rescue operators
WARNING
Before carrying out any operation on the machine, please read carefully the instruction and operating manual.
Installation and maintenance must be carried out solely by qualified personnel that is familiar with provisions of the
law and local regulations and has been trained properly or has experience with this type of equipment.
WARNING
Avoid to install the chiller in areas that could be dangerous during maintenance operations, like for example
platforms without parapets or railings or areas not complying with the clearance requirements around the chiller.

D–EIMAC00708-16EN - 20/76
Moving and lifting
Avoid bumping and/or jolting during unloading from the lorry and moving the machine. Do not push or pull the machine
from any part other than the base frame. Block the machine from sliding inside the lorry in order to prevent damage to
the panels and to the base frame. Avoid any part of the machine falling during unloading and/or moving, as this could
cause serious damage.
All units of the series are supplied with four lifting points marked in yellow. Only use these points for lifting the unit, as
shown in figure 2.
Procedure for extracting the unit
from the container.
(Container kit Optional)
Note: The length and the width of the unit can be different from this drawing but the lifting method remains the same
Figure 4 - Lifting the unit
WARNING
Both the lifting ropes and the spacing bar and/or scales must be of sufficient size to support the machine safely. Please
verify the unit’s weight on the machine’s nameplate.
The weights shown in the “Technical data” tables in the “General Information” chapter refer to standard units.
Specific machines could have accessories that increase their overall weight (pumps, heat recovery, copper-copper
condenser coils, etc.).
WARNING
The machine must be lifted with the utmost attention and care. Avoid jolting when lifting and lift machine very slowly,
keeping it perfectly level.
Positioning and assembly
All units are produced for installation outdoors, on balconies or on the ground, provided that the area is free from
obstacles that could hamper air flow towards the condenser batteries.
The machine must be installed on a robust and perfectly level foundation; should the machine be installed on balconies
and/or attics, it could be necessary to use weight distribution beams.
For installation on the ground, a strong cement base that is at least 250 mm wider and longer than the machine must be
foreseen. Also, this base must be able to support the weight of the machine as declared in the technical specifications.
If the machine is installed in places that are easily accessible for people and animals, it is advisable to install battery and
compressor section protection grates.