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Daikin EWLD420I-SS [10/36] Technical specifications
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10
Technical specifications
TECHNICAL SPECIFICATIONS 320 400 420 500
Capacity (1) kW 328 391 428 504
---
%25252525
Unit power input (1) kW 83.8 100 116 137
--- 3.91 3.9 3.7 3.67
---
---
Height mm 1899 1899 1899 1899
Width mm 1464 1464 1464 1464
Length mm 3114 3114 3114 3114
kg 1861 1861 1869 1884
kg 2054 2054 2052 2056
---
l 193 193 183 172
Cooling l/s 15.67 18.68 20.45 24.08
Cooling kPa 34 47 47 54
---
l16161616
No.1111
Cooling dB(A) 93.7 96.6 96.7 96.7
Cooling dB(A) 75.2 76.2 78.2 78.2
--- R-134a R-134a R-134a R-134a
kg.5555
No.1111
Piping connections mm 168.3 168.3 168.3 168.3
Liquid connections mm42424242
Gas Discharge connections mm 88.9 88.9 88.9 88.9
Refrigerant Volume l 170 170 170 170
Safety devices
Notes (1)
Notes (2)
EWLD~I-SS
Cooling
Colour
EER (1)
Type
Capacity control
Stepless
Minimum capacity
Cooling
Dimensions Unit
Ivory White
Material Galvanized and painted steel sheet
Casing
Nominal water flow rate
Weight
Unit
Operating Weight
Water volume
Closed cell
Water heat exchanger
Evaporator
Type Single Pass Shell&Tube
Semi-hermetic
single screw compressor
Oil charge
Quantity
Compressor
Type
Nominal Water pressure drop
Insulation material
Sound level
Sound Power (2)
Sound Pressure (2)
Refrigerant type
Refrigerant charge
N. of circuits
Refrigerant circuit
Evaporator water inlet/outlet
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Outlet
Liquid receiver (option)
Low pressure ratio
High discharge temperature
Low oil pressure
High oil filter pressure drop
Phase monitor
Emergency stop button
Water freeze protection controller
Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12/7°C;
45 °C saturated discharge temperature at the compressor.
The values are according to ISO 3744 and are referred to: evaporator 12/7°C, saturated discharge temperature
45°C, full load operation.
Inlet
Содержание
- Code requirements safety and observant of laws directives 3
- Features and advantages 3
- Infinitely capacity control 3
- Seasonal quietness 3
- Certifications 4
- Sound configuration 4
- Versions 4
- Cabinet and structure 5
- Ecological hfc 134a refrigerant 5
- Electronic expansion valve 5
- Evaporator 5
- General characteristics 5
- Refrigerant circuit 5
- Screw compressors 5
- Control section main features 6
- Electrical control panel 6
- Safety device logic for each refrigerant circuit 6
- Chiller sequencing 7
- Digital sequencing panel 7
- Microtech iii 7
- Microtech iii remote control 7
- Regulation type 7
- Serial sequencing panel 7
- Supervising systems on request 7
- System security 7
- Options on request 8
- Standard accessories supplied on basic unit 8
- Nomenclature 9
- Technical specifications 10
- Ewld i ss 17
- Sound levels 17
- Sound pressure levels correction for different distances 17
- Ewld i ss 18
- Operating limits 18
- Table 1 evaporator minimum and maximum water 18
- Table 2 evaporator fouling factors 18
- Table 3 minimum glycol percentage for low air temperature 18
- Table 3 minimum glycol percentage for low water temperature 18
- How to use the correction factors proposed in the previous tables 19
- Table 4 correction factors for low evaporator leaving water temperature 19
- Table 5 correction factors for water and glycol mixture 19
- Water charge flow and quality 20
- Water content in cooling circuits 21
- Ewld i ss 22
- Notes 1 cc cooling capacity 2 pi unit power input 3 hr heat rejection 4 elwt evaporator leaving water temperature δt 5 c 5 data refers to 0 0176 m2 c kw evaporator fouling factor 22
- Standard ratings 22
- Notes 6 cc cooling capacity 7 pi unit power input 8 hr heat rejection 9 elwt evaporator leaving water temperature δt 5 c 10 data refers to 0 0176 m2 c kw evaporator fouling factor 23
- Notes 11 cc cooling capacity 12 pi unit power input 13 hr heat rejection 14 elwt evaporator leaving water temperature δt 5 c 15 data refers to 0 0176 m2 c kw evaporator fouling factor 24
- 91 l s 25
- Evaporator and condenser pressure drops 25
- Ewld i ss 25
- How to use the formula example evaporator 25
- Pd2 kpa pd1 kpa x where pd2 pressure drop to be determinated kpa pd1 pressure drop at nominal condition kpa q2 water flow at new working condition l s q1 water flow at nominal condition l s 25
- The unit ewld320i ss has been selected for working at the following conditions evaporator water in out 11 6 c saturated discharge temperature 40 c the cooling capacity at these working conditions is 333 kw the evaporator water flow at these working conditions is 15 1 l s the unit ewld320i ss at nominal working conditions has the following data evaporator water in out 12 7 c saturated discharge temperature 45 c the cooling capacity at these working conditions is 328 kw the evaporator water flow at these working conditions is 15 7 l s the evaporator pressure drop at these working conditions is 34 kpa the evaporator pressure drop at the selected working condition will be pd2 kpa 34 kpa x pd2 kpa 35 kpa note if the calculated evaporator water pressure drop is below 10 kpa or above 100 kpa please contact the factory for dedicated evaporator 25
- To determinate the evaporator or condenser pressure drop for different versions or at different working condition please refer to the following formula 25
- Dimensions 26
- Handling 29
- Installation notes 29
- Location 29
- Minimum clearance requirements for machine maintenance 29
- Minimum space requirements 29
- Warning 29
- Dimensions 30
- General 30
- Noise level and vibrations 30
- Performance 30
- Refrigerant 30
- Technical specification for water cooled screw chiller 30
- Unit description 30
- Chiller components 31
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