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-EIMAC00704-14EN
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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
Label Identification
– Non flammable gas symbol
– Gas type
– Unit nameplate data
– Manufacturer’s logo
– Water circuit filling warning
– Electrical hazard symbol
– Hazardous Voltage warning
– Cable tightening warning
– Lifting instructions
6 fans unit
D–EIMAC00704-14EN - 2/72
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–EIMAC00704-14EN - 3/72
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 ........................................................................................................................................................................ 71
Index of tables
Index of tables
Index of tablesIndex 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
Index of figures
Index of figuresIndex 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–EIMAC00704-14EN - 4/72
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–EIMAC00704-14EN - 5/72
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–EIMAC00704-14EN - 6/72
Nomenclature
E W A D 1 0 0 E - S S 0 0 1
1 2 3 4 5 6 7 8 9 10 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
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
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
(McQuay code)
(McQuay code)
Figure 1 - Nomenclature
D–EIMAC00704-14EN - 7/72
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
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
Dimensions Unit
Weight
Water heat
exchanger
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections Evaporator water inlet/outlet " 3 3 3 3 3
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Notes (2)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 1651 1684 1806 1861 2023
Operating Weight kg 1663 1699 1823 1881 2047
Type --- Plate to Plate
Water volume l 12 15 17 20 24
Nominal water flow rate 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
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 10922 10575 16383 15863 21844
Model
Type --Oil charge l 13 13 13 13 13
Quantity No. 1 1 1 1 1
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 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
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.
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.
Height mm 2273 2273 2273 2273 2273
Width mm 1292 1292 1292 1292 1292
Length mm 2165 2165 3065 3065 3965
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 8/72
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
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
Dimensions Unit
Weight
Water heat
exchanger
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections Evaporator water inlet/outlet " 3 3 3 3 3
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Notes (2)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 2086 2522 2745 2855 2919
Operating Weight kg 2116 2547 2775 2891 2963
Type --- Plate to Plate
Water volume l 30 25 30 36 44
Nominal water flow rate 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
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 21150 32767 32767 31725 31725
Model
Type --Oil charge l 13 16 19 19 19
Quantity No. 1 1 1 1 1
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 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
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.
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.
Height mm 2273 2223 2223 2223 2223
Width mm 1292 2236 2236 2236 2236
Length mm 3965 3070 3070 3070 3070
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 9/72
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
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
Dimensions Unit
Weight
Water heat
exchanger
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections Evaporator water inlet/outlet " 3 3 3 3 3
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Notes (2)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 1751 1784 1906 1961 2123
Operating Weight kg 1766 1799 1923 1981 2147
Type --- Plate to Plate
Water volume l 12 15 17 20 24
Nominal water flow rate 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
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 8372 8144 12558 12217 16744
Model
Type --Oil charge l 13 13 13 13 13
Quantity No. 1 1 1 1 1
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 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
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.
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.
Height mm 2273 2273 2273 2273 2273
Width mm 1292 1292 1292 1292 1292
Length mm 2165 2165 3065 3065 3965
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 10/72
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
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
Dimensions Unit
Weight
Water heat
exchanger
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections Evaporator water inlet/outlet " 3 3 3 3 3
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Water freeze protection controller
Notes (1)
Notes (2)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 2186 2633 2856 2966 3029
Operating Weight kg 2216 2658 2886 3002 3073
Type --- Plate to Plate
Water volume l 30 25 30 36 44
Nominal water flow rate 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
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 16289 25117 25117 24433 24433
Model
Type --Oil charge l 13 16 19 19 19
Quantity No. 1 1 1 1 1
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 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
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.
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, ambient 35°C, full load
operation.
Height mm 2273 2223 2223 2223 2223
Width mm 1292 2236 2236 2236 2236
Length mm 3965 3070 3070 3070 3070
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 11/72
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
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
Dimensions Unit
Weight
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Notes (2) The values are according to ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 1561 1584 1700 1741 1894
Operating Weight kg 1591 1617 1768 1781 1936
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 10922 10575 16383 15863 21844
Model
Type --Oil charge (3) l 13 13 13 13 13
Quantity No. 1 1 1 1 1
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 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
Suction mm 76 76 76 76 76
Liquid mm 28 28 28 28 28
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.
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 0.5 bar
Height mm 2273 2273 2273 2273 2273
Width mm 1292 1292 1292 1292 1292
Length mm 2165 2165 3065 3065 3965
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 12/72
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
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
Dimensions Unit
Weight
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Notes (2) The values are according to ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 1936 2353 2557 2640 2679
Operating Weight kg 1981 2414 2621 2713 2756
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 21150 32767 32767 31725 31725
Model
Type --Oil charge (3) l 13 16 19 19 19
Quantity No. 1 1 1 1 1
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 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
Suction mm 76 76 139.7 139.7 139.7
Liquid mm 28 35 35 35 35
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.
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 0.5 bar
Height mm 2273 2273 2273 2273 2273
Width mm 1292 2236 2236 2236 2236
Length mm 3965 3070 3070 3070 3070
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 13/72
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
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
Dimensions Unit
Weight
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Notes (2) The values are according to ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 1658 1684 1795 1841 1991
Operating Weight kg 1688 1717 1830 1881 2033
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 8372 8144 12558 12217 16744
Model
Type --Oil charge (3) l 13 13 13 13 13
Quantity No. 1 1 1 1 1
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 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
Suction mm 76 76 76 76 76
Liquid mm 28 28 28 28 28
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.
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 0.5 bar
Height mm 2273 2273 2273 2273 2273
Width mm 1292 1292 1292 1292 1292
Length mm 2165 2165 3065 3065 3965
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 14/72
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
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
Dimensions Unit
Weight
Air heat exchanger Type ---
Fan
Compressor
Sound level
Refrigerant circuit
Piping connections
Safety devices High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Notes (2) The values are according to ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Type --- Stepless
Minimum capacity % 25 25 25 25 25
Colour --- Ivory White
Material --- Galvanized and painted steel sheet
Unit kg 2036 2455 2662 2755 2789
Operating Weight kg 2081 2516 2726 2828 2886
Type --- Direct propeller type
Drive --- DOL
Diameter mm 800 800 800 800 800
Nominal air flow l/s 16289 25117 25117 24433 24433
Model
Type --Oil charge (3) l 13 16 19 19 19
Quantity No. 1 1 1 1 1
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 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
Suction mm 76 76 139.7 139.7 139.7
Liquid mm 28 35 35 35 35
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.
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 0.5 bar
Height mm 2273 2273 2273 2273 2273
Width mm 1292 2236 2236 2236 2236
Length mm 3965 3070 3070 3070 3070
High efficiency fin and tube type
with integral subcooler
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
Semi-hermetic
single screw compressor
D–EIMAC00704-14EN - 15/72
Unit
Unit
-
5
Unit
Unit
Table 9 - Sound levels EWAD E-SS – ERAD E-SS
size
EWA
100 120
120 140
140 170
160 200
180 220
210 250
280 310
310 370
360 440
410 490
Note: The values are according to ISO 3744 and are referred to units without pumps kit.
D
size
ERA
D
Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10
63 Hz 125 Hz 250 Hz 500 Hz
75.5 70.8 68.9 75.3 64.3 61.7 53.0 47.3 73.5 91.5
75.5 70.8 68.9 75.3 64.3 61.7 53.0 47.3 73.5 91.5
75.7 71.0 69.1 75.5 64.5 61.9 53.2 47.5 73.7 92.3
75.7 71.0 69.1 75.5 64.5 61.9 53.2 47.5 73.7 92.3
75.9 71.2 69.3 75.7 64.7 62.1 53.4 47.7 73.9 93.0
77.1 72.4 70.5 76.9 65.9 63.3 54.6 48.9 75.1 94.2
77.0 72.3 70.4 76.8 65.8 63.2 54.5 48.8 75.0 94.2
77.3 72.6 70.7 77.1 66.1 63.5 54.8 49.1 75.3 94.5
77.3 72.6 70.7 77.1 66.1 63.5 54.8 49.1 75.3 94.5
78.0 73.3 71.4 77.8 66.8 64.2 55.5 49.8 76.0 95.2
1000
Hz
2000
Hz
4000
Table 10 - Sound levels EWAD E-SL – ERAD E-SL
size
EWA
100 120
120 140
130 160
160 190
180 210
210 240
250 300
300 350
350 410
400 460
Note: The values are according to ISO 3744 and are referred to units without pumps kit.
D
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
73.0 68.3 66.4 72.8 61.8 59.2 50.5 44.8 71.0 89.0
73.0 68.3 66.4 72.8 61.8 59.2 50.5 44.8 71.0 89.0
73.2 68.5 66.6 73.0 62.0 59.4 50.7 45.0 71.2 89.8
73.2 68.5 66.6 73.0 62.0 59.4 50.7 45.0 71.2 89.8
73.4 68.7 66.8 73.2 62.2 59.6 50.9 45.2 71.4 90.5
74.6 69.9 68.0 74.4 63.4 60.8 52.1 46.4 72.6 91.7
74.5 69.8 67.9 74.3 63.3 60.7 52.0 46.3 72.5 91.7
74.8 70.1 68.2 74.6 63.6 61.0 52.3 46.6 72.8 92.0
74.8 70.1 68.2 74.6 63.6 61.0 52.3 46.6 72.8 92.0
75.5 70.8 68.9 75.3 64.3 61.7 53.0 47.3 73.5 92.7
1000
Hz
2000
Hz
4000
Hz
Hz
8000
Hz
8000
Hz
Pa) Power
dB(A) dB(A)
dB(A) dB(A)
D–EIMAC00704-14EN - 16/72
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–EIMAC00704-14EN - 17/72
Figure 2 - Operating limits – EWAD E-SS/SL
Evap Leaving Water Temperature (°C)
(below
-10°C Amb.)
Glycol
Saturated Suction Temperature (°C)
(below
-
10°C Amb.)
(below 0°C)
COMP FULL LOAD ONLY
Above this line
(ICE Mode)
Ambient Temperature (°C)
Operation with
Fan Speed
Modulation required
(below 18°C Amb.
Temp for less than
3 fans units, below
10°C for 3 or more
Figure 3 - Operating limits – ERAD E-SS/SL
COMP FULL LOAD ONLY
Above this line
(ICE Mode)
Speedtroll required
Ambient Temperature (°C)
Check on rating tables for actual operating limit at full load.
D–EIMAC00704-14EN - 18/72
Frost protection
required
Fan Speed
Modulation required
(below 18°C Amb.
Temp for less than
3 fans units, below
10°C for 3 or more
Speedtroll required
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–EIMAC00704-14EN - 19/72
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.
D–EIMAC00704-14EN - 20/72
Tomensure the best possible performance on the installation site, the following precautions and instructions must be
followed:
Avoid air flow recirculation
Make sure that there are no obstacles to hamper air flow.
Air must circulate freely to ensure proper intake and expulsion.
Ensure strong and solid flooring to reduce noise and vibrations as much as possible.
Avoid installation in particularly dusty environments, in order to reduce soiling of condenser batteries.
The water in the system must be particularly clean and all traces of oil and rust must be removed. Installation of a
mechanical water filter is required for the machine’s input piping.
Minimum space requirements
It is fundamental to respect minimum distances on all units, in order to ensure optimum ventilation for the condenser
batteries. Limited installation space could reduce the normal air flow, thus significantly reducing the machine’s
performance and considerably increasing consumption of electrical energy.
When deciding where to position the machine and to ensure a proper air flow, the following factors must be taken into
consideration: avoid any warm air recirculation and insufficient supply to the air-cooled condenser.
Both these conditions can cause an increase of condensing pressure, which leads to a reduction in energy efficiency and
refrigerating capacity. Thanks to the geometry of their air-cooled condensers, the units are less affected by bad air
circulation situations.
Also, the software has a particular ability for calculationg the machine’s operating conditions and for optimising the load
under abnormal operating conditions.
Every side of the machine must be accessible for post-installation maintenance operations. Figure 3 shows the minimum
space required.
Vertical air expulsion must not be obstructed as this would significantly reduce capacity and efficiency.
If the machine is positioned in such a way as to be surrounded by walls or with obstacles of the same height as the
machine, it must be installed at a distance of at least 2500 mm. If these obstacles are higher, the machine must be
installed at a distance of at least 3000 mm.
Should the machine be installed without observing the recommended minimum distances from walls and/or vertical
obstacles, there could be a combination of warm air recirculation and/or insufficient supply to the air-cooled condenser
which could cause a reduction of capacity and efficiency.
Figure 5 - Minimum space requirements for machine maintenance
In any case, the microprocessor will allow the machine to adjust to new conditions by producing the maximum available
capacity, even if the lateral distance is lower than recommended.
When two or more machines are positioned side by side, a distance of at least 3600 mm between condenser batteries is
recommended.
For further solutions, please consult Daikin technicians.
D–EIMAC00704-14EN - 21/72
THE WIDTH OF THE UNIT CAN BE DIFFERENT BUT THE MINIMUM RECOMMENDED INSTALLATION DISTANCES
REMAIN THE SAME
Figure 6 - Minimum recommended installation distances
Sound protection
When sound levels require special control, great care must be exercised in isolating the machine from its base, by
appropriately applying antivibration devices (supplied optionally). Flexible joints must be installed on the water
connections, as well.
Water piping
The following instrucrion are applicable to units supplied with the evaporator installed in the package (EWAD E-SS/SL);
that may also be considered as general guidelines for water piping in units supplied without evaporator (ERAD E-SS/SL)
when used in conjuction with refrigerant to water evaporator.
Water piping must be designed with the lowest number of curves 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:
Anti-vibration supports in order to reduce transmission of vibrations to the underlying structure.
Sectioning valves to isolate the machine from the hydraulic system during servicing.
Manual or automatic air bleeding device at the system’s highest point. Drainage device at the system’s lowest point. Both
the evaporator and the heat recovery device must not be positioned at the system’s highest point.
A device that can maintain the hydraulic system under pressure (expansion tank, etc.)
Water temperature and pressure indicators on the machine to aid servicing and maintenance operations.
A filter or device that can remove extraneous particles from the water before it enters the pump (Please consult the pump
manufacturer’s recommendations for an appropriate filter to prevent cavitation). Use of a filter prolongs the life of the
pump and helps keep the hydraulic system in best condition. Evaporator filter is supplied for EWAD E-SS/SL.
Another filter must be installed on the pipe conveying ingoing water to the machine, near the evaporator and heat
recovery (if installed). The filter avoids solid particles entering the heat exchanger, as they could damage it or reduce its
heat exchanging capacity.
The shell and tube heat exchanger has an electrical resistance with a thermostat that ensures protection against water
freezing up to an outdoor temperature of – 25°C. All the other hydraulic piping outside the machine must therefore be
protected against freezing.
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.
If the machine is installed in order to replace another, the entire hydraulic 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 machine.
D–EIMAC00704-14EN - 22/72
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