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Daikin EWLD420I-SS Брошюра онлайн [16/36] 529426
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ELECTRICAL SPECIFICATIONS C11 C12 C13 C14
--- 3 3 3 3
Hz 50 50 50 50
V 400 400 400 400
Minimum % -10% -10% -10% -10%
Maximum % +10% +10% +10% +10%
A 851 883 915 915
A 487 511 536 562
A 726 766 806 846
A 799 843 887 931
No.3333
V 400 400 400 400
Minimum % -10% -10% -10% -10%
Maximum % +10% +10% +10% +10%
A
242
242
282
242
282
282
282
282
282
282
282
282
---
ELECTRICAL SPECIFICATIONS C15 C16 C17
--- 3 3 3
Hz 50 50 50
V 400 400 400
Minimum % -10% -10% -10%
Maximum % +10% +10% +10%
A 946 978 978
A 592 622 652
A 885 924 963
A 974 1016 1059
No. 3 3 3
V 400 400 400
Minimum % -10% -10% -10%
Maximum % +10% +10% +10%
A
282
282
321
282
321
321
321
321
321
---
Wye – Delta type (Y – Δ)
EWLD~I-SS
Power Supply
Phase
Frequency
Voltage
Voltage Tolerance
Unit
Maximum starting current
Nominal running current cooling
Maximum running current
Maximum current for wires sizing
Compressor
Phase
Voltage
Voltage Tolerance
Maximum running current
Power Supply
Phase
Frequency
Voltage
Voltage Tolerance
Unit
Maximum starting current
Nominal running current cooling
Maximum running current
Maximum current for wires sizing
Compressor
Phase
Voltage
Voltage Tolerance
Maximum running current
Notes
Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%.
Maximum starting current: starting current of biggest compressor + current of compressors at 75% maximum load
Maximum unit current for wires sizing is based on minimum allowed voltage
Nominal current in cooling mode is referred to the following conditions: evaporator 12°C/7°C;
saturated discahrge temperature 45°C
Maximum running current is based on max compressor absorbed current in its envelope
Starting method
Starting method
Wye – Delta type (Y – Δ)
EWLD~I-SS
Maximum current for wires sizing: (compressors full load ampere) x 1,1.
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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