CLIVET ELFOFresh2 CPAN-U 70-120 Series Service manual
ELFOFresh²
▶SUMMER AND WINTER ACTIVE THERMODYNAMIC RECOVERY
Thanks to heat pump technology, all year-round the active
thermodynamic recovery multiplies the energy contained in
the exhaust air and gets rid of high pressure drops common of
traditional systems.
▶ELFOFRESH² FULFILLS UP TO 80% OF THE BUILDING
THERMAL REQUIREMENT
The produced heating or cooling capacity reduces the capacity
requested to the integrated air conditioning system,increasing the
seasonal eciency.
▶ELECTRONIC FILTERING: PM10, BACTERIA, POLLEN
The electrostatic lter at high eciency is able to get rid of fumes,
ne dust, viruses and bacteria. Its characteristics allow to reduce the
ventilation electric consumptions.
▶SUMMER DEHUMIDIFICATION IDEAL FOR THE COUPLING
WITH THE RADIANT COOLING
Is the ideal solution to complete radiant systems, thanks to its
outstanding ability to control ambient humidity.
▶FREECOOLING
Allows to automatically draw fresh air from outside and supply it in
the rooms, at no cost, just by operating the fans.
Technical
Bulletin
MAKE UP AND PURIFICATION UNIT WITH ACTIVE THERMODYNAMIC RECOVERY
FOR INDOOR INSTALLATION
Series CPAN-U 70-120 (R134A) and CPAN-U 200-650 (R410A)
ELFOFresh270 -120 with air ow from 70 to 120 m3/h
ELFOFresh2200 -650 with air ow from 200 to 650 m3/h
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ELFOSystem GAIA Edition
ELFOFresh2is the device for the air renewal of ElfoSystem that Clivet has thought for residential installations and oces
System with an eye to the future
• It does not use fossil fuels
• It uses renewable energy from 75 up to 100%
• Substantially contributes toward reaching the European targets of 20-20-20 by 2020
(reduction of CO2emissions, primary energy and use of renewable energy).
Qualifying proposal
• Specialized solution with high value added
• Single annual cycle system for total comfort
• Increases the building’s energy eciency by at least 2 classes
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A single smart system
A single smart system with all the elements that generate year-round comfort:
▶Heating
▶Cooling
▶Domestic hot water
▶Fresh air renewal and purication
▶Humidity control
Simple to install
• Industrialized solution that permits a quick and high quality installation
• Excludes installation and adjustment errors
• Wirings and connections are clear and precongured
Economically convenient
• Thanks to the high energy eciency levels it increases the value of the property.
The investment pays back for itself in 3-4 years on average
• 60% reduction of the space in the heating room
• Complies with the minimum requirements for existing nancial incentives.
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ELFOSystem components
Production
High eciency heat pump for the heat/cool and domestic
hot water production
▶Packaged unit for the comfort by using renewable energy
▶Integrated system to recover solar energy from thermal
manifolds
▶Integrated domestic hot water production
▶System with the best seasonal eciency on the market
▶Water production up to 60°C, operating with outdoor air
temperature down to –22°C
▶Air and water version
Pre-assembled control unit
Compared with a traditional combustion system, GAIA
oers three key benets:
▶It does not require a gas feed, ues and explosion security
systems
▶Encloses all of the system elements
▶In a single unit it includes heating, cooling and solar
thermal store
The installation time is DRASTICALLY REDUCED to the best advantage of a QUALITY AND SAFETY result.
TRADITIONAL SYSTEM
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ELFOControl² control
Advanced control system to manage the operation of the entire system
▶Complete management of the system
▶Intelligent consumption
▶Customised comfort levels
▶A wealth of functions that are easy to manage
▶Android platform
It optimises heating and cooling with
GAIA
It uses the contribution of thermal solar
sources to produce DHW
It guarantees the availability of domestic
hot water
It freshens and puries air with ELFOFresh²
Communicationwiththe roomthermostat
for temperature and humidity control.
It manages the radiant panels
It manages the room terminals
It manages radiators and heating furniture
Complete control over comfort
ELFOControl² is the brain behind your system that communicates with all the
components installed. It checks the operating conditions of each individual device and
allows to adjust the operation of the entire system from a single control centre, on which
the setting of all desired parameters to ensure top comfort levels depends.
ELFOControl² adjusts the temperature of each room, controls the humidity levels,
ensures the quality of the air and the production of domestic hot water. It checks every
aspect of the system in order to ensure the perfect comfort for any kind of need.
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Air renewal ELFOFresh²
Energy-recovery based room ventilation and purication
▶Active thermodynamic summer and winter recovery
Thanks to the heat pump technology, it multiplies the energy
contained in the air ejected all year round and eliminates the
considerable pressure drops of traditional systems.
▶Fulll up to 80% of the building thermal load
It reduces the power required from the additional air-
conditioning system and increases its seasonal eciency.
▶Electronic ltering
For an eective protection also against the most hazardous
polluting agents (PM10, bacteria, pollen).
▶Summer dehumidication
Ideal in combination with Radiant cooling.
▶FREE-COOLING
It allows to draw fresh air from outside and introduce it into
the rooms, at no additional cost, just by operating the fans.
Aria ELFOAir distribution
The exclusive air distribution system of ELFOFresh²
▶Versatile installation thanks to the use of walkable exible ducts
▶The components are easy to select and install
▶Quality of the air guaranteed by antistatic and antibacterial ducts
▶Guaranteed result
1. Clean air supplied into the rooms
2. Stale air drawn from the rooms
3. Outdoor air intake
4. air exhaust
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ELFORoom² distribution
Cased or uncased water terminal unit for vertical and horizontal installation
▶Homogenous temperatures at all times
Eliminates air temperature stratications thanks to the
continuous modulation of the fan speed
▶Reduced consumptions
The exclusive motor enables strong reductions in
consumption
▶100% silent operation
The continuous operation of the fan allows the appliance to
always operate at very low speeds, which means the noise it
produces is basically imperceptible.
▶Puries the air while conditioning
The continuous fan operating allows the unit to operate
always privileging automatically the lower fan speeds in
favour of the silence
▶Satises all installations
Available in both the vertical and horizontal uncased and
built-in version
Heat distribution systems
ELFODistribution
Heat diusion systems with “room by room” temperature
control
▶100% guaranteed comfort
The use temperature and humidity thermostats for
environment guarantees optimal comfort conditions for
each single room.
▶Radiant system management
From the control of the heads to the control of the dew
temperature, every aspect of the system is constantly
monitored and controlled.
▶Managing systems with radiators
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ELFOFresh²
Requirement: air quality and energy recovery
Building design is changing
New building rules and regulations are changing the
traditional concept of house
These aspects ensure a considerable improvement in the energy
performance of the building envelope in new and renovated
buildings, though they lead to increasingly airtight buildings.
Moreover, the sharp decrease in the required heat load transferred
by transmission leads to a reduction in the building’s energy
demand.
In this kind of environment ventilation acquires un ever increasing
importance in order to ensure ideal comfort, indeed:
▶indoor pollutants may be trapped inside homes
▶much more dangerous outdoor pollutants introduced without
any kind of ltering and purifying treatment can be even more
harmful
▶the energy transferred outside during air renewal is always the
main factor in terms of the building’s energy demand
Fresh and clean air with ecient energy recovery
There is not real comfort with out a proper air renewal rate as odours and harmful substances accumulate inside the house, too.
Therefore, the new building trend illustrated above, which focuses on a considerable improvement of building envelopes, requires a
controlled mechanical renewal system for ambient air to ensure the desired renewal values.
However, introducing fresh air directly is not always a healthy option and involves high energy costs.
Indeed, usually the air we eject has a high energy content that needs to be recovered, though without aecting the systems’ overall
eciency.
Indoor pollutants aect our health and buildings
Outdoor air contains pollutants that are more dangerous, such as particulates and ne
dust, pollen, bacteria and so on.
These aect our health in many ways, including coughs, respiratory diseases, often
chronic, increase in susceptibility to infections, problems to the cardio-circulatory
system.
Outdoor pollutants are more dangerous than indoor ones
Indoor activities generate many pollutants, only some of which are evident as they are immediately perceivable (odours, humidity,
smoke).
In actual fact there are many more sources of pollution that we often do not notice
straight away, such as construction materials, furnishings, dispersed dust, mould and
micro-organisms, cleaning products, carbon dioxide to name but a few.
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The Clivet solution for residential
Compact unit
Fresh air purication and conditioning using the recovery on exhaust air
Advantages
H10 Equivalent ltering eciency
Removes pollutants from the rooms we live in
It expels unhealthy air and, at the same time, introduces puried and air-conditioned outdoor air.
With the electronic lters on outdoor air, acting as high-eciency electrostatic purier, it minimises suspended pollutants such as smoke,
ne dust, viruses and bacteria.
At the same time it reduces electric consumption associated with higher pressure drops common to traditional lters and it also gets rid
of the need to change periodically traditional lters because electronic lters can be regenerated by washing.
COP 5.9 at -5°C outside
Is a high eciency active thermodynamic recovery unit
Unlike traditional systems, the active thermodynamic circuit recovers all year-round the energy contained in the ow of exhaust air, it
multiplies it thanks to heat pump technology and then provides it to the served areas of the building. In this way it minimises load for
conditioning fresh air and provides additional capacity to maintain comfort conditions.
-40% primary energy in heating
Simplies the system and increases its eciency
Thanks to the packaged system construction, the system components and their installation are already included inside the unit.
In addition, the energy generated by the active thermodynamic recovery reduces the power and therefore the cost of the additional air-
conditioning system. This comprehensive high-eciency reduces the user’s primary energy consumption even up to 40%.
1. The active thermodynamic system uses heat pump technology to recuperate energy from extract air
2. It operates with 100% outdoor air
3. Extracts and expels the stale air from the space and recovers its thermal energy
4. It supplies Primary Air puried and air-conditioned
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The Clivet solution
ELFOFresh² 70-120
A compact air renewal and purication unit for houses from 50 to 90 m2
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 ow rate.
The benets deriving from this design solution are featured along the three development and management stages of the system, indeed:
▶It simplies 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 congurations carried out during installation that dier from
the ones reported on the project.
▶In the event of soiled lters 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 ow rate.
A. Air intake lter
It puries external renewal air before it is introduced in rooms
with a standard lter (G3). It can be tted with an optional high
eciency electrostatic lter (H10).
B.“Standard”exhaust air lter
These units with reduced power are tted with the internal G2
lter 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 ns
Reduced pressure drops compared to passive recovery units.
L. External exchanger
Finned direct expansion exchanger with copper tubes and
aluminium ns
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 [m2]40 50 60 70 80 80 90 100 110 120 140 150
Volume of a room with h=2,7m [m3]108 135 162 189 216 216 243 270 297 324 378 405
Nominal air ow rate [m3/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
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ELFOFresh² 200-650
A compact air renewal and purication unit for houses from 150 to 800 m2
▶The heat pump components:compressor, thermostatic valve, fans and coils – are perfectly integrated into the unit and can be easily
accessed for routine maintenance.
▶The electrical panel can be easily controlled remotely.
▶The intake section and the air extraction and exhaust section are clearly separated by a steel panel that prevents contamination
between the ows.
A. Air intake lter
It puries external renewal air before it is introduced in rooms
with a standard lter (G3). It can be tted with an optional high
eciency electrostatic lter (H10).
B.“Optional” exhaust air lter
When purchasing the unit, it can be tted with an external return
air lter.
C. Supply fan
It introduces treated air into the room: centrifugal DC electric fan
coupled directly to an electric motor.
D. Compressor
It allows to“transfer”heat from exhaust air to renewal air. Airtight
rotary compressor R410A.
E. Exhaust fan
It ejects stale air outdoors: centrifugal DC electric fan coupled
directly to an electric motor.
F. Remote electric panel
The electrical panel can be controlled remotely to make
installation easier.
G. Aluzink unit
H. DN200-250 air ducts
Air distribution system size designed in relation to the unit size.
I. Internal exchanger
Direct expansion nned coil exchanger with copper pipes and
aluminium ns. Reduced pressure drops compared to passive
recovery units.
L. External exchanger
Direct expansion nned coil exchanger with copper pipes and
aluminium ns. Reduced pressure drops compared to passive
recovery units.
Model ELFOFresh² 200 ELFOFresh² 300 ELFOFresh² 500 ELFOFresh² 650
Room surface [m2]150 200 250 250 300 350 350 500 600 600 700 800
Volume of a room with h=2,7m [m3]405 540 675 675 810 945 945 1350 1620 1620 1890 2160
Nominal air ow rate [m3/h] 200 200 200 300 300 300 500 500 500 650 650 650
Renewal rate [vol/h] 0,49 0,37 0,3 0,44 0,37 0,32 0,53 0,37 0,31 0,4 0,34 0,3
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The principle of cooling and heating operation
Recovery that does not penalize ventilation
The mechanical, controlled-ventilation system with active recovery involves a unit, with an extremely ecient refrigeration circuit with
reduced air-side pressure drops and signicant energy cost reductions for ventilation compared with traditional static systems.
Active thermodynamic recovery exchangers have high-eciency n batteries that guarantee extremely modest pressure drops during the
entire operating cycle.
Winter operation
The indoor air (A), at a temperature of 20°C, before being released outside
(C) becomes the thermal source of the heat pump passing through the
evaporation coil (B) so that the heat can be recovered.
The cooling uid of the heat pump, after withdrawing the heat from the
exhaust air, through evaporation, releases it to the fresh air (D) through the
condensation coil (E) before to be released into the rooms (F).
Summer operation
Through the 4-way valve, the cooling cycle is inverted so that the “cold”
contained in the exhaust air ow (A), is used in the condensation coil (B)
before being exhausted (C).
The fresh air (D), viene ltrata, is ltered, cooled and subsequently
dehumidied passing through the evaporator (E) before being released into
the rooms (F).
Intermediate season operation (FREE-COOLING/FREE HEATING)
The summer fresh air conditions, especially at night, may be more agreeable
than the indoor ones, at least in terms of temperature.
Houses, in fact, accumulate the heat during the central hours of the day and
then let it during the night. In similar conditions, the ELFOFresh2technology
allows the air supply in the room at cost zero, “FREE-COOLING”, only with
the fan operating.
The contrary phenomenon, the “FREE-HEATING”, occurs in particular
climatic conditions, e.g. in the South of Italy.
Thanks to modulating fans, is possible to introduce in the room an air ow
higher than the one strectly necessary to the normal renewal.
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ELFOFresh2improves comfort
It renews air, which increases well-being
The necessity of fresh air in the rooms where we live is a question of hygiene as well as well-being. Air renewal must take place in controlled
conditions so that the air coming from outside is ltered and suited to the desired conditions of temperature and humidity.
Heating temperature
ELFOFresh2allows the intake of fresh air into the rooms at a temperature
always higher than any other system; particularly in extreme climate
conditions, this avoid for the air intake the low temperatures to compromise
the comfort.
▶Through the natural ventilation, the air intake temperature corresponds
to the outside air temperature.
▶By using a passive recovery, the intake temperature is always lower than
20°C and decreases as the outside temperature decreases.
▶ELFOFresh2, guarantees the comfort down to a temperature of –5°C; at
lower temperatures, however, the intake temperature is maintained at
around 17°C.
Cooling temperature
▶The natural ventilation has the air intake temperature corresponding to
the outside temperature.
▶By using a passive recovery during specic hours, the risk is that the
intake air has higher temperature than the outside one.
▶By using an active recovery, the comfort is always guaranteed: at outdoor
temperature higher than 30°C, the intake temperature is maintained at
16°C.
Humidity control
During summer operations, the active thermodynamic recovery cools and
dehumidies the fresh air.
ELFOFresh2can be used combined with cooling systems that use radiant
panels (wall, oor, or ceiling), with no need of other dehumidiers installed
in the rooms.
The passive recovery do not perform the fresh air dehumidication, while the
enthalpy rotating recovery are only able to perform a partial dehumidication.
The automatic adjustment of the air ow rate (A) of the direct current fans,
controls the delivery air humidity (C) and the internal room humidity (B).
Air quality
ELFOFresh2rejects the unhealthy air from bathrooms and kitchen, or from rooms with the higher concentration of pollutants. It also
pre-treats the fresh air, released into the living rooms and the bedrooms, by ltering, humidifying or dehumidifying it and taking it at the
correct temperature. The fresh and healthy air can be always guaranteed in our houses.
All this, with minimum electrical consumption.
14 ELFOFresh² BT15B012GB-00
ELFOFresh2riduces consumptions and increases the value of your home.
Maximum seasonal eciency
Unlike traditional systems, the ELFOFresh2active thermodynamic circuit recovers the energy contained in the ow of exhaust air, it
multiplies it using heat pump technology and then provides it to the served building with high eciency.
Heating
The ELFOFresh2energy eciency is very
high because the heat source, with which
such heat pump operates, is the exhaust air,
having favourable conditions.
During winter operation, for example, with
fresh air temperature –5°C and extracted air
at 20°C, the ELFOFresh2COP is higher than
5.5.
The heating capacity minimizes the fresh air
load, providing further power to maintain
the comfort conditions. The result for users
is a reduction up to 40% of the heat primary
energy consumption than a traditional
system.
Cooling
Besides recovering the exhaust air heat
that, unlike the traditional system also
takes place during summer operation, the
active recovery generates a quantity of
energy supplied to the building also during
summer. In this way, the active recovery
compensate the heat loss through walls and
roof of the building.
Therefore, ELFOFresh2is able to reduce the
30% of cooling primary energy versus a
traditional system with a passive recovery
and direct expansion system.
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Multiplies the energy recovered from exhaust air
Passive cross-ow recovery unit and 70% eciency rate
The passive recovery unit is able to supply, by recovering it from exhaust
air, only a small percentage of the energy required by the building.
Therefore, the residual demand needs to be provided by a generator,
which in the illustrated case is a traditional boiler.
The system’s seasonal eciency drops considerably due to the poor
contribution of the recovery unit.
Thermodynamic recovery unit
The graph shows how under the same ambient conditions and in the
same building, the part of energy that is recovered and supplied in the
room can be as high as 80% of the overall energy demand.
The favourable conditions ELFOFresh2operates in and the important
contribution in terms of energy supplied ensure a relevant input to the
seasonal eciency of the whole system.
Improved Energy Eciency Class for the building
ELFOFresh²’s eciency reduces
the absorbed primary energy in
comparison to a traditional system.
The example shows that, having the
same building features (insulation,
doors and windows, etc.), replacing
the crossover ows recovery with
ELFOFresh² unit, the class of energy
eciency increases from C to B.
Also, considering the use of Gaia as
a primary generator, the building
energy class becomes “A”, thus
remarkably increasing the building
value.
NOTES: This ex. refers to the energy eciency classication according to the Italian guidelines, as per Law Decree dated 26 June, 2009, for a single house in Milan, with climate
class E, and with the following features: Floor surface: 200m2; heated gross volume: 600m3; dispersing surface: 440m2; S/V ratio: 0.73m-1. Walls and roof insulation: compared to
the limit U- value as per law (Uwalls: 0.34; Uroof 0.30; Ubasement 0.33; Uwindows: 2.2 W/m2K).
16 ELFOFresh² BT15B012GB-00
Flow modulation
The new fans in direct current gave saving 60% for the absorbed capacity
The energetic consumption for the ventilation represents the main cost for the fresh air units.
In order to reduce the operating costs and obtain the highest energy saving, all units have high-eciency fans with electric control in
direct current: an energy saving 60% than traditional fans is guaranteed.
The electronic control the automatic modulation of the air ow that, according to the requirements, can increase, in case of FREE-COOLING,
or decrease for the dehumidication, extending the functional limits, and limiting the optional use of modular electric heaters from 0,7 or
3 kW (optional) only for exceptional situations.
The unit is congurated for 40 Pa available head; by changing some parameters it is possible to reach up to 120 Pa.
The air ow reduction guarantees the comfort during winter operation
In correspondence to the low temperature values of the fresh air (lower than – 5°C), the intake temperature is xed (I), approximately equal
to the indoor air (20°C) using the air ow reduction (A).
This reduction is performed in order to avoid the intake of fresh air in the rooms that might cause the risk of uncomfortable cold draughts.
In this conditions, the active thermodynamic recovery can completely satisfy the ventilation load.
Nominal air ow operating: fulll of the building load in addition of the ventilation
In the range of fresh air temperature between – 5 °C and + 20 °C,
the fresh air ow rate keeps constant (B): the intake temperature
in the room (II) increases as the fresh air temperature increases;
ELFOFresh2, besides compensating the ventilation dispersions, is
able to full, either completely or partially, the building load for
heating of building.
Increase of air ow rate for cooling the rooms in middle season
In the range between + 20 °C and + 25 °C the building might need
being cooled, though without relevant need, it is also possible
to perform the free-cooling, by simply allowing a higher air ow
rate into the rooms and leaving the compressor deactivated (C).
In this case, the eciency is dened as the ratio between the
cooling capacity delivered to the room by the fresh air (directly
proportional to the temperature dierence between outdoor
and indoor, according to the fresh air ow rate) and the absorbed
electric capacity (in such case, only by the fans). Due to the reduced
absorption of the fans, it is possible to reach a very high eciency
in this operating condition. The intake temperature in the room is
exactly equal to the outside one (III).
Reducing the air ow rate to dehumidify
For a more ecient dehumidication of the fresh air, ELFOFresh2reduces the ow rate by modulating the fan speed (D); in this way, it is
possible to cool the rooms by using radiant panels with a subsequent ecient dehumidication.
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Pure air with the new H10 electronic lters
Increase of the ltration eciency and decrease of the operating costs
Simply introducing untreated outdoor air to dilute indoor pollutants is not a solution, because of additional polluting agents
present in outdoor air.
The new electronic lters available for ELFOFresh2make fresh air even more ecient and at the same time they reduce costs for ventilation
and maintenance compared with traditional systems.
High eciency lters (F7 category) of a traditional system increase the energy spent on ventilation, because of greater loss of pressure.
And also require more frequent maintenance, with a signicant cost at the end of each year to replace the lters.
The eciency of electronic lter on ELFOFresh2is equivalent to classication H10 used in traditional lters, that is the category indicated
as“absolute lter”.
These are eective even against:
• Smoke
• Fine dust
• Particulates PM10, PM2,5, PM1
• Bacteria
• Germs and viruses
• Nano-particle
The ventilation energy is reduced
The highest ltration eciency is obtained with practically no pressure drops.
Indeed mechanical ltering is replaced by electronic ltering, which does not prevent air from passing through and ensures negligible
pressure drops.
Air quality always under control
Air ltering is an essential function for ensure proper wellbeing and hygiene conditions are maintained in the areas served.
Moreover, ELFOFresh2’s control reports when it is necessary to clean the electronic lter to always ensure it is used correctly.
18 ELFOFresh² BT15B012GB-00
ELFOAir
Clivet’s modular solution
Issues related to the selection, size and installation of the air distribution and the elements tted on a traditional system are eliminated
thanks to ELFOAir, the modular solution to distribute air through manifolds. A clever mix of functionality and reliability, ELFOAir is the
exclusive system that is perfectly combined with ELFOFresh2to provide fresh air in domestic settings.
▶Suited to all needs
▶Simple to install
▶Minimum Size
▶Antistatic and Antibacterial
Underoor, false-ceiling and wall installation
In new buildings and redevelopment works on existing buildings ELFOAir is the best solution to fully enjoy the benets of the ELFOFresh2
ventilation system thanks to its stepped exible ducts. These are ideal for underoor applications, as well as for installations in attics and
false ceilings. Specially designed grids and outlets can also be tted and can be perfectly integrated in any kind of architectural context.
Simple to install
ELFOAir is the plug&play distribution system that reduces installation times by 50%. The simple and user-friendly connection between its
elements guarantees a perfect seal and reliability of the distribution system.
Antistatic and Antibacterial
The piping is antibacterial and antistatic ensuring hygiene, sterility and health safety.
BT15B012GB-00 ELFOFresh² 19
Air renewal in the room
The correct distribution of air in domestic environments.
ELFOAir is the modular air distribution system with manifolds that consists
of an air distribution box, at exible ducts, horizontal and vertical
moulded curves, seal and joint rings, diusers and accessories made with
plastic material and is ideal to guarantee the correct distribution of air in
dierent environments.
▶The manifold distribution ensures the self-balancing of the system and
therefore guarantees maximum exibility in positioning the supply/
return grids and outlets and the correct air speed inside the ducts.
▶The distribution to manifolds allows better system balancing and
therefore guarantees maximum exibility in positioning the inlets and
supply/return grilles and the correct air speed inside the ducts.
▶The exible duct is easy to install and can be connected to all the other
components of the system without the need for special equipment.
The insulation of the channelling removes the risk of condensation
forming on the external surfaces of the ducts themselves.
▶The ELFOAir Air system includes a comprehensive series of accessories
that are essential to ensure the installation and the perfect operation
of the aeraulic distribution of ELFOFresh2.
ELFOAir Congurator
Thanks to ELFOAir Congurator, the selection and dimensioning software, the ELFOAir solution is designed in little time and with no errors.
A simple and powerful tool, available from www.clivet.com, that provides an essential support for all professionals to install the ELFOFresh2
air renewal system.
ELFOFresh2ducts
ELFOFresh2’s connection to the distribution system of the internal and
external air is conducted by using exible insulated circular ducts that
guarantee the thermal and acoustic insulation of the channels.
The antibacterial treatment of the inner surfaces ensures the quality of
the fresh air. The reduced pitch of the spiral ensures a greater mechanical
strength compared to traditional solutions and does not alter the duct’s
cross-section, even if there is a large radius of curvature.
20 ELFOFresh² BT15B012GB-00
Standard unit technical specications
Compressor
Hermetic rotary compressor with gas compression in the crankcase, direct suction, no oil heater. It is mounted on antivibration rubber pads. Includes oil
feed.
Fitted on rubber antivibration mounts and complete with oil charge and suction lter.
Structure
Size 70-120:
Supporting structure made with RAL 9001 prepainted sheet aluminium metal that ensures excellent mechanical features and high long-term resilience
against corrosion. The entire ventilating area is covered with anti-condensation and sound-proof material.
Size 200-650:
Structure made entirely from “aluzink” plate that guarantees excellent mechanical characteristics and high corrosion strength over time. The ventilating
section is completely lined with anti-condensate and soundproong material.
Internal exchanger
Exchanger for the ambient air pre-treatment
Finned exchanger, made from copper pipes arranged in staggered rows and mechanically expanded for better adherence to the collar of the ns. The ns
are made from aluminium with a special corrugated surface, set a suitable distance apart to ensure maximum heat exchange eciency.
The surface of the 70-120 ns of the coils has been subjected to an hydrophilic treatment to make it easier to discharge condensation and reduce frost.
External exchanger
Exchanger for the energy recovery of the extract air
Finned exchanger, made from copper pipes arranged in staggered rows and mechanically expanded for better adherence to the collar of the ns. The ns
are made from aluminium with a special corrugated surface, set a suitable distance apart to ensure maximum heat exchange eciency.
The surface of the 70-120 ns of the coils has been subjected to an hydrophilic treatment to make it easier to discharge condensation and reduce frost.
Refrigeration circuit
Refrigeration circuit with:
• refrigerant charge
• High pressure safety pressure switch
• suction pressure transducer
• 4-way reverse cycle valve
• capillary as a laminating device (size 70-120)
• thermostatic valve like expansion device (size 200-650)
Drain pan
Size 70-120:
Thermoformed ABS condensate collection tray tted with drain pipe.
Size 200-650:
Condensate collecting tray in aluminium alloy 1050 H24 with anti-condensate insulation, welded and equipped with discharge coupling.
Fan
Size 70-120:
Brushless centrifugal fan in supplì and expulsion at high energy eciency with single intake directly coupled to the electric motor with scroll and pallets
of metal.
Size 200-650:
Supply and exhaust brushless centrifugal electric fan at high energy eciency with double intake directly coupled to the electric motor with plastic scroll
diam 146 mm and metal pallets.
Other manuals for ELFOFresh2 CPAN-U 70-120 Series
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