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Daikin EWLD420I-SS Брошюра онлайн [13/36] 529426
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13
TECHNICAL SPECIFICATIONS C11 C12 C13 C14
Capacity (1) kW 1078 1125 1188 1267
---
% 8.3 8.3 8.3 8.3
Unit power input (1) kW 296 312 329 347
--- 3.64 3.60 3.61 3.65
---
---
Height mm 2415 2415 2415 2415
Width mm 2135 2135 2135 2135
Length mm 4426 4426 4426 4426
kg 5167 5167 5188 5208
kg 5671 5671 5677 5680
---
l 504 489 472 504
Cooling l/s 51.50 53.75 56.76 60.53
Cooling kPa 46 49 41 51
---
l48484848
No.3333
Cooling dB(A) 100.8 101.2 103 100.4
Cooling dB(A) 80.8 81.2 83 80.4
--- R-134a R-134a R-134a R-134a
kg.5555
No.3333
Piping connections mm 219.1 219.1 219.1 219.1
Liquid connections mm42424242
Gas Discharge connections mm 88.9 88.9 88.9 88.9
Safety devices
Notes (1)
Notes (2)
EWLD~I-SS
Cooling
Type
Ivory White
Unit
Insulation material
Galvanized and painted steel sheet
Minimum capacity
EER (1)
Stepless
Casing
Colour
Cooling
Material
Dimensions
Capacity control
Weight
Unit
Operating Weight
Water heat exchanger
Evaporator
Oil charge
Single Pass Shell&Tube
Water volume
Nominal water flow rate
Nominal Water pressure drop
Type
Sound level
Closed cell
Sound Power (2)
Sound Pressure (2)
Compressor
Type
Semi-hermetic
single screw compressor
High discharge pressure (pressure transducer)
Quantity
Refrigerant circuit
Refrigerant type
Refrigerant charge
N. of circuits
Low oil pressure
High discharge pressure (pressure switch)
Inlet
Outlet
Evaporator water inlet/outlet
Low pressure ratio
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Water freeze protection controller
High oil filter pressure drop
Phase monitor
Emergency stop button
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.
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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