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Daikin EWYD7004ZXLA2 [3/8] Full inverter technology the best choice for every application
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3
Why choose
4Z multipurpose series?
Full inverter technology:
the best choice for every application
VVR (Variable Volume Ratio)
The operating conditions of a chiller are subjected
to sensible changes due to the variation of ambient
temperature and load request from the plant.
Screw compressors increase the pressure of the
refrigerant by forcing it into a progressive smaller
volume, from the suction to the discharge port.
Once that the geometry of the compressor is defined
the volume ratio is also defined.
Daikin compressors can modify their own geometry
thanks to variable volume ratio (VVR).
The volume ratio will change by moving the sliding
valves. VVR changes the point at which the gas leaves
the compressor, and therefore changes the pressures
at discharge which will be optimal at any condition.
Max.
compression
ratio
Min.
compression
ratio
New Daikin High Eciency
Inverter fans
The new high efficiency fan developed by DAIKIN
with optimized geometry ensures the best ratio
between airflow and power input. The inverter
control ensures the optimum airflow in every
condition
1
Top class efficiency
Total Energy Ratio up to 8.8
Suction port
Aluminium
cooling plate
Variable Volume Ratio (VVR)
Discharge port
Economizer
& Liquid
injection ports
Capacitors
Inverter
Liquid inlet
(VFD cooling)
Daikin single screw compressor with
integrated inverter and Variable Volume
Ratio Technology
The inverter integrated in the compressor is refrigerant
cooled:
› Safe and robust cooling system, totally independent
from outdoor ambient conditions and air quality
› Suitable even for aggressive installation such as
industrial or desert application
Содержание
- Ewyd 4z 1
- Full inverter technology the best choice for every application 3
- Top class efficiency 3
- Why choose 3
- Z multipurpose series 3
- Application flexibility 2 4
- Extra capacity in boosted operation 4
- In case of power failure daikin 4z is able to restart in less than 30 sec the ups installed in electrical box keeps the unit controller always powered is also possible to give if needed priority to restore the cooling or the heating load 4
- Rapid restart functionality 4
- Thanks to the variable speed drive of the compressor is possible to benefit of an extra capacity during the coldest days in winter or the hottest days in summer 4
- Wide operating envelope for cooling and heating 4
- Best solution for simultaneous cooling and heating 3 5
- Big multipurpose buildings hotels hospital are just a few examples of application for multipurpose units 5
- Load profile with simultaneous request for cooling and heating 5
- Lower energy consumption compared to traditional systems 5
- Same cooling and heating energy delivered with 30 energy consumption 5
- Technical details ewyd 4za 6
- Technical details ewyd 4za 7
- Comfort cooling application 8
- Daikin europe n v naamloze vennootschap zandvoordestraat 300 8400 oostende belgium www daikin eu be 0412 120 336 rpr oostende responsible editor 8
- Hospital application 8
- Process cooling application 8
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