- Details
concerning the WATER-cooled models
The WATER-cooled condensation
gives many different advantages:
·
higher energy
efficiency (E.E.R. / C.O.P. up to 4,68);
·
lower energy
consumption (630 W to obtain a cooling capacity
> 3 kW);
·
free installation:
not necessarily on a perimetral wall;
· no
holes in the wall are requested;
· low
sound level as the condenser doesn't need any fan.
Obviously the water
condensation needs
a connection to a source of water, which can be:
· town
water
·
wellwater
or groundwater
·
closed circuit
system (water loop) with water at 30°C, according to EN14511
standard specifications.
The connection to a
source of water can be easy or very difficult; in the residential
applications the most common way to install a Rêve
consists of a simple connection to the existing water pipes by means
of two pipes (one inlet pipe and one outlet pipe). In this
case the water consumption is minimum.
When a water source is available (wellwater, groundwater) it is
possible to make a system of water pump and discharge supplying more
than one Rêve. In this way the installation can condition the whole
home, is ecological, low consumption and completely independent.
Finally we attract the
attention on the important application in «water loop», typical
of commercial installations (commercial centers, schools, offices, etc.),
in which
Rêve achieves the maximum energy efficiency, with E.E.R./C.O.P.
up to 4,68.
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- Details
concerning the AIR-cooled models
As air conditioner, the air-cooled
version of Rêve belongs to the category of "packaged double ducts",
defined by the 2002/31/CE European Directive as "air conditioners
completely positioned inside the conditioned space, with the
condenser air intake and air discharge outside by means of two ducts". |
- It can operate in 5 modes:
- air
conditioning;
- heat pump;
- dry only;
- ventilation
with air filtration;
- water radiator.
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Side, front,
over views
width= 839 mm
height= 735 mm
depth= 260 mm (280 to central point) |
- Rêve has always the "water radiator" function,
that can be used or not used; to use this function it's necessary to
connect Rêve to the heating plant, independent or centralised. The
connection can be made by means of a special optional kit, the
interface module between Rêve and the heating plant; without this
kit Rêve can be installed with the maximum flexibility as air
conditioner/heat pump without outdoor unit (i.e., where there isn't
a heating plant for climatic reasons).
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- The joint kit to the heating plant is
symmetric and can be installed on the right side as well as on the
left side; it has been realised to best adapt to the various
existing conditions (pipes on right, pipes on left, outlet on right
and return on left, outlet on top and return lower...).This means
that the same kit (code 397011902) can be used for both the sides;
the dimension and the shape of the kit allow to elegantly cover the
majority of the hydraulic connections; moreover the thickness of the
plastic of the top and lower parts has been reduced to facilitate
the adaptation to the plant.The kit is composed of the plastic cover
and of all the components (electronic and hydraulic) necessary to
work in "water radiator" mode; the installer will have to do only
the hydraulic connections to the outlet and to the return of the heating plant
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- The plastic cover of the kit is equipped with
two shutter doors, one to access to the top part of the hydraulic
connections and the other to access to the lower part of them;
between the spaces there are the main controllers of the product:
- change-over switch from water radiator to air conditioner
mode (winter/summer);
- fan speed controller in water radiator
mode;
- controller of the water radiator temperature (from 6°C to
40°C).
When the change-over switch is on "winter" position
(water radiator mode) Rêve can't operate as air conditioner; in this
position the three-way bypass valve (provided with the joint kit)
allows the hot water to flow from the heating plant. A temperature
sensor stops the fan operation if the temperature of the water is
lower than 40°C; a high precision thermostat controls the
ventilation to keep a room temperature adjustable from 6°C to 40°C.
When the change-over switch is on "summer" position (air conditioner
mode) Rêve can operate as air conditioner or heat pump (it depends
on the model) and the bypass valve insulates the product from the
heating plant, assuring no water flow inside the air/water exchanger. Rêve
pressure drops and water flowrate are equivalent to these of the
traditional water radiator, thus the installation of Rêve doesn't
require any plant modification.
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- In air conditioning mode, Rêve achieves the
maximum efficiency with outdoor temperatures from -8°C to +43°C and
the adjustment of the room temperature is possible between 16°C and
30°C; this means that Rêve can cool up to 16°C starting from
whichever room temperature higher than 16°C and, in the same way, Rêve
can heat up to 30°C starting from whichever room temperature lower
then 30°C. As an example, if the temperature of the room is 4°C and
You want to heat it up to 24°C, You have only to activate the heat
pump setting a desired temperature of 24°C.
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- Rêve is equipped with a special system for the
collection and the elimination of the condensate produced by the
evaporator; thanks to this system, when the unit works in cooling or
dry modes, all the condensate is evaporated internally on the
condenser. Consequently, the model Rêve 247C (straight cooling +
water radiator) doesn't require any type of discharge for the
condensate. In the heat pump model (Rêve 237R) the discharge of the
condensate is necessary, but only in heat pump mode; in cooling
and/or dry modes the unit doesn't produce condensate (as Rêve
247C).The discharge for condensate for this model (Rêve 237R) can be
ducted outside or inside the room because in the unit frame there is
a special duct.
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- The heat exchangers are in alluminium with hydrophilic
surface, the most efficient material for this kind of application.
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- The air intake is mainly placed on the front
of the unit with the addition of two small lateral grilles; the air
intaken pass through a big anti-mould and anti-bacteria washable
filter, easy to be extracted and washed, assuring clean air and
maximum operating efficiency, both in air conditioning and water
radiator modes. The air filtration and the ventilation (three-speeds
by remote control) avoid the forming of the typical "black
moustaches" around the standard water radiators.
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- The air outlet temperature is about 12 °C
in «cooling» mode and 41 °C in «heat pump» mode. In « water radiator»
mode, this temperature depends on the regulation of the heting plant :
if the water temperaure is between 65 °C and 70 °C at the heat
exchanger entry, the air outlet temperature can exceed 45 °C.
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- The volume of the air treated is considerable
and varies from 280 to 330 m3/h, depending on the speed of the
silent tangential fan, especially designed to obtain very low sound
levels and not to be deformed also at the high temperatures to which
is submitted.
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- The horizontal flap can be set manually to 6
fixed positions or can swing by remote control within two swinging
fields: one for cooling mode and one for heating mode; moreover, the
air outlet can be vertically controlled by manual flap.
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- On the front panel of the unit there are some
controllers and indicators:
- infrared receiver for remote control;
- blue led indicating the operation of the timers;
- yellow led indicating the "stand by" status;
- green led indicating the operation in air conditioning/heat pump
mode;
- micro-switch control to activate or disable the unit in case of
remote control loss.
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- By remote control it's possible to use all the
functions of the air conditioner; a wide LCD display with symbols
allows an easy setting and reading of the operation status, of the
temperature set and of the real temperature in the room.
The remote control can also program the operation cycles thanks to
its digital timer to be set on the 24h and the week end management;
moreover, inside the remote control there is a temperature sensor
that, combined with the "I Feel" function, allows to adjust the
temperature of the precise point in which the remote control is
positioned according to the temperature selected; the result is the
"best possible comfort". A special circuit allows to prevent
compressor over-pressures and to control defrosting cycles; Rêve
doesn't emit cool air during defrosting cycles and change-overs from
air conditioning to heat pump modes. The "dry" function allows to
use Rêve also as dehumidifier; this function can be activated by
remote control and assures dehumidification with low speed operating
cycles as for the split-ystem air conditioners. All the operation
parameters and the customer programmings are memorized on one EEprom;
this special memory keeps the data without power supply or batteries.
Thanks to this memory in case of black out Rêve will re-start
operating automatically on the basis of the parameters set before
the power failure.
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- Rêve has been designed for a wall installation;
it can be placed exactly in the space of an existing water radiator
(with similar dimension, 10/12 elements), installed on a perimetral
wall.
It's provided with all the necessary for the installation:
- template in 1:1 scale;
- duct of 900 mm to be cut in two sections;
- two internal grilles and two external grilles with metallic
spring tie rod, especially projected to assure the maximum
efficiency of the unit and to facilitate the installation from the
inner of the room.
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- The installation is simplified by the mounting
template and the wall fixing plate, similar to the one used for a
split-system wall indoor unit; the product is designed to be
installed at a minimum distance from the floor (as for a standard
radiator) and the mounting process is the following:
- mark the nozzles and the drilling points by means of the
template;
- make the holes for the condensing section, with a diameter
of 162 mm;
- make the hole for the condensate discharge, necessary only for
the heat pump version;
- mount the wall plate;
- fill a socket for power supply;
- hang the unit to the plate;
- make the hydraulic connections if the product is used also as
water radiator, by means of the special kit.
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- Rêve has been submitted to laboratory tests in
special climatic rooms for a long time; its operation is optimal
with duct of a 50 cm depht (this means that the perimetral wall
depht may arrive to 50 cm). For this reason the duct provided with
the unit has a lenght of 90 cm to be divided in two equal parts;
each part, with the addition of the grilles, reaches exactly 50 cm
of depht. From the laboratory tests it results that the unit can
efficiently operate also with ducts of higher depht (up to 90 cm),
as in case of installation in an attic. The rear part of Rêve has
been designed also for glass installations, as is the case of rooms
with glass walls, to be done using only the external grilles and not
the internal ducts and grilles.
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- Rêve has been realized with first-quality
materials; anti-scratch, anti-collision and UV resistant 92 gloss
ABS (it doesn't yellow) for the external parts; the internal parts
have been realized with anti-collision seed-expansible polystyrene
with high characteristics of stability and thermal and sound
insulation.
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- Some plastics are realized with the CIMPRES
technique, which consists of the injection of an inert gas inside
the plastics during the moulding process; this sophisticated
technique assures the correct elasticity of the piece and the
absence of defects in the shape.
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