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Application Guide / FLEXAIR-AGU-1505-E
SAVING ENERGY WITH ADVANCED
REFRIGERATION CIRCUIT DESIGN
R410A refrigerant
Ef
fi
cient systems such as
FLEXAIR
are designed around R410A
refrigerant to achieve the best performances.
• Energy ef
fi
cient refrigerant thanks with pressure drop in the
pipes: Higher evaporating pressure and lower condensing
pressure improve compressor EER & COP.
• R410A compressors have a better isentropic ef
fi
ciency.
• Environmentally friendly refrigerant:
It contains No Chlorine (ODP =0). Signi
fi
cant refrigerant charge
reduction (-40%) that limits the global warming potential of the
system. R410A optimized heat exchangers use less material
(copper, aluminum …)
1- GENERAL DESCRIPTION
1.4. MULTISCROLL COMPRESSOR
TECHNOLOGY
FLEXAIR
units are provided with tandem compressors, to pro
fi
t
from the multiscroll compressor technology and giving the highest
seasonal performance and the best SEER coef
fi
cients.
High ef
fi
ciency multiscroll technology
Air conditioning equipments are sized to cover the need for the
most critical weather conditions which most likely will occur only
a few days or even a few hours during the year.
Most of the time, in Europe, the external temperature drops below
the reference value and consequently systems usually run 96%
of the time at part load. It is therefore important to design system
around part load performance to achieve the lowest possible
annual energy consumption.
FLEXAIR
provides high ef
fi
ciency and best possible part load
ef
fi
ciencies year round with high ef
fi
ciency multiscroll R410A
compressor technology.
Evolution of the net EER with varying capacity load
Net EER
Capacity load in % of nominal
1,5
2,0
4,0
2,5
3,0
4,5
3,5
10
20
30
40
50
60
70
80
90 100
Inverter Scroll
Single Scroll
A
B
C
D
MultiScroll
Multi eDrive
TM
A
Multi eDRIVE
C
Multiscroll
B
Inverter scroll
D
Single scroll
Source: PERSAPAC Study by Cetiat, Eurovent, Armine & EDF
Lennox Europe Laboratory comparative testing on rooftops