CLIVET ELFOFresh2 CPAN-U 70-120 Series, Технический бюллетень

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10 ELFOFresh² BT15B012GB-00
The Clivet solution
ELFOFresh² 70-120
A compact air renewal and purification unit for houses from 50 to 90 m
2
Thanks to the
new automatic speed control in relation to the pressure drops of the system
, the centrifugal fans, which are directly
coupled to a
DC motor
, ensure a constant air flow rate.
The benefits deriving from this design solution are featured along the three development and management stages of the system, indeed:
▶
It simplifies the
design
of the air distribution system, as it is not necessary to take into account extremely small tolerances when
calculating the pressure drops of the system itself.
▶
It makes it easier to install and activate the unit in the event of system configurations carried out during installation that differ from
the ones reported on the project.
▶
In the event of
soiled filters
or
incorrect cleaning
of the system, it prevents the machine from going in stand-by or from less than
optimal operation due to a drop in the flow rate.
A. Air intake filter
It purifies external renewal air before it is introduced in rooms
with a standard filter (G3). It can be fitted with an optional high
efficiency electrostatic filter (H10).
B. “Standard” exhaust air filter
These units with reduced power are fitted with the internal G2
filter as standard.
C. Supply fan
The new control allows to maintain a constant rotation speed as
the system’s pressure drops vary, with 60% less power absorbed
compared to traditional fans.
D. Compressor
R134a airtight rotary compressor chosen to optimise the reduced
power unit with higher performance levels.
E. Exhaust fan
The new control allows to maintain a constant rotation speed as
the system’s pressure drops vary, with 60% less power absorbed.
F. Electrical panel
Easy to access in order to conduct maintenance and take it out
through the openings.
G. White prepainted aluminium unit
H. DN150 air ducts
Air distribution system size designed in relation to the unit size.
I. Internal exchanger
Finned direct expansion exchanger with copper tubes and
aluminium fins
Reduced pressure drops compared to passive recovery units.
L. External exchanger
Finned direct expansion exchanger with copper tubes and
aluminium fins
Reduced pressure drops compared to passive recovery units.
Air renewal in relation to the surface of the house:
Model ELFOFresh² 70 ELFOFresh² 120
Room surface [m
2
]
40 50 60 70 80 80 90 100 110 120 140 150
Volume of a room with h=2,7m [m
3
] 108 135 162 189 216 216 243 270 297 324 378 405
Nominal air flow rate [m
3
/h] 70 70 70 70 70 120 120 120 120 120 120 120
Renewal rate [vol/h] 0,65 5,2 0,43 0,37 0,32 0,56 0,49 0,44 0,4 0,37 0,32 0,3