TECHNICAL FIELD
[0001] The present invention relates to an indoor air conditioner disposed inside of a room,
and more specifically relates to an indoor air conditioner having upward and side
outlets.
BACKGROUND ART
[0002] In cooling or heating indoor air by an indoor air conditioner, various attempts have
been made to provide the entire indoor air with uniform temperature distribution.
However, they have not yet reached to the level of sufficient satisfaction.
[0003] One conventional example of the above-stated attempts is described in Japanese Patent
Laid-Open Publication No.
2000-346392 which one of the applicants of the present invention formerly filed. In this application,
air is blown off from upward and side portions of a main unit of an indoor air conditioner
so as to decrease local nonuniformity of temperature distribution in the vicinity
of a wall or window, and decrease vertical difference in indoor temperature distribution.
[0004] In
EP-A-1 014 011 there is disclosed an airflow control method and airflow controller for an air conditioner
indoor unit capable of executing air conditioning so that indoor temperature distribution
becomes uniform without any sense of airflow during heating operation. A turbofan
is provided that has an axis extending in an anteroposterior direction and blows air
taken in from a front surface side radially outwardly with respect to an axis inside
a casing and a heat exchanger disposed on the front surface side of the turbofan inside
the casing. The casing is provided with outlet ports for blowing air from the turbofan
in the vertical direction and the horizontal direction. During the heating operation,
a control signal is output by a flap control section to an upper flap stepping motor
and a left-hand flap stepping motor so as to narrow the openings of the upper, right-hand
and left-hand flaps and make the opening of the lower flap wider than the openings
of the upper, right-hand and left-hand flaps.
DISCLOSURE OF THE INVENTION
[0005] According to one aspect of the present invention there is provided an indoor air
conditioner having an upward outlet formed on a top face of a main unit and a side
outlet formed on at least one side face of the main unit, the indoor air conditioner
comprising: air volume control means for controlling blow of air so that a blown-off
air volume from the upward outlet is larger than a blown-off air volume from the side
outlet in a cooling operation,
characterized in that: a ratio of the blown-off air volume from the upward outlet to the blown-off air volume
from the side outlet is set to 2:1 to 4:1 in a case where a side blown-off air is
blown-off from the side outlet on one of side faces of the main unit.
[0006] According to another aspect of the present invention there is provided an indoor
air conditioner having an upward outlet formed on a top face of a main unit and a
side outlet formed on a side face of the main unit, the indoor air conditioner comprising:
air volume control means for controlling blow of air so that a blown-off air volume
from the side outlet is equal to or larger than a blown-off air volume from an upward
outlet in a heating operation,
characterized in that: a ratio of the blown-off air volume from the upward outlet to the blown-off air volume
from the side outlet is set to 1:2 to 1:1 in a case where a side blown-off air is
blown-off from the side outlet on one of side faces of the main unit.
[0007] The present invention takes a new standpoint of controlling the volume of air blown
off from the indoor air conditioner into upward and side directions so as to solve
a problem of temperature nonuniformity during indoor cooling and heating operations,
and thus to provide an air-conditioned environment as cozy as possible.
[0008] As shown in Fig. 1, the indoor air conditioner of the present invention is composed
of air outlets 22, 23, 24 disposed on an upper face 12 and one or both side faces
13, 14 of the main unit, and provided with an air volume control means for controlling
the volume of air blown off from the upward outlet 22 and from the side outlets 23,
24.
[0009] Swing flaps 32 and shutters 33 for increasing or decreasing air passage areas at
the air outlets are used as means for controlling the air volume.
[0010] The present invention is directed to improve nonuniformity of temperature distribution
in indoor cooling and heating operations controlling the volume of air blown off from
the upward and side outlets of the indoor air conditioner so as to provide an air-conditioned
environment as cozy as possible. For indicating a degree of conformability of air
conditioning environment, there are used two indexes: PMV (Predicted Mean Vote) index
and PPD (Predicted Percentage of Dissatisfied) index, both of which are designated
in the ISO standards.
[0011] The PMV index has four elements regarding environment: temperature, humidity, airflow
and radiation, and two elements regarding human: metabolic quantity and clothing quantity.
Values of the PMV index corresponds to thermal senses. The PMV value +3 is "hot",
+2 is "warm", +1 is "warmish", ±0 is "neither hot nor cold", -1 is "coolish", -2 is
"cool", and -3 is "cold". In the ISO standards, it is recommended that the PMV index
falls within "the range of -0.5 to +0.5." Therefore, in the present invention, "the
range of -0.5 to +0.5" has been adopted as a preferable PMV index range.
[0012] The PPD index is defined as "an index for quantitatively predicting the percentage
of people who feel thermally dissatisfied during staying in a given environment."
The ISO standards state that the PPD index is desirably 10% or less for coziness in
a residential environment of human beings.
[0013] In the present invention, a later-described "PMV cozy zone occupancy" is used in
a cooling operation when setting a ratio of an upward blown-off air volume to a side
blown-off air volume. Also, a "vertical temperature difference" is used in a cooling
operation when setting a blown-off angle of side air.
[0014] In a heating operation, a "PPD index" is used when setting a ratio of an upward blown-off
air volume to a side blown-off air volume and setting a blown-off angle of side air.
[0015] It is noted that the "PMV cozy zone occupancy" is defined as "a ratio of the zone
(cozy zone) where the PMV index is in the range of -0.5 to +0.5 to an other residual
zone in an air-conditioned space (indoor space)".
[0016] Under the above-stated condition, description will be given of control of upward
and side blown-off air quantities in the indoor air conditioner of the present invention.
[0017] Fig. 2 is a graph for setting the ratio of an upward blown-off air volume to a side
blown-off air volume in cooling operation, and shows the relation between the upward
blown-off air volume and the PMV cozy zone occupancy when the side blown-off air volume
is set to 1.
[0018] The graph indicates that the PMV cozy zone occupancy rises while the ratio of the
upward blown-off air volume to the side blown-off air volume shifts from 1:1 to 4:1,
and that thereafter the PMV cozy zone occupancy decreases.
[0019] In the present invention, the range from 2:1 to 4:1 of the blown-off air volume ratio
has been adopted as a preferable range, as a result of comparison between the above-stated
and the PMV cozy zone occupancy of 90% or more in radiator air conditioning operation.
[0020] This is explained with reference to examples shown in the drawings. As shown in Figs.
3 and 4, in the cooling operation, air volume control means is operated such that
the blown-off air volume UC from an upward outlet is larger than blown-off air volume
SC
1, SC
2 from one or both of side outlets.
[0021] In the case where side blown-off air is blown-off only from a side outlet in a side
face (Fig. 3), the ratio (air volume ratio) of a blown-off air volume UC from the
upward outlet to a blown-off air volume SC
1 or SC
2 from a side outlet is preferably in the range of UC:SC
1 (or SC
2) = 2:1 to 4:1. It is noted that reference numeral 5 in Fig. 3 denotes a side wall
face.
[0022] In the case where side blown-off air S
1, S
2 are blown-off from side outlets 23, 24 on the left and right sides (Fig. 4), the
preferable ratio range is SC
1:UC:SC
2 = 1:2:1 to 1:4:1.
[0023] Fig. 5 is a graph for setting a blown-off angle of side blown-off air in the cooling
operation, and shows the relation between change of a side blown-off angle and difference
of vertical temperature in air-conditioned space.
[0024] In the present invention, the range within 1.5 °C (the range where the side blown-off
angle is not smaller than -20 degree) has been adopted as a preferable range of the
vertical temperature difference in air-conditioned space during cooling operation.
[0025] In the cooling operation, in order to prevent excessive fall of air temperature in
the vicinity of the floor face, it is preferable for the air volume control means
to have a function of controlling blown-off air so that air blown-off from the side
outlets 23, 24 is blocked and that air only from the upward outlet is blown off.
[0026] Fig. 6 is a graph for setting the ratio of an upward blown-off air volume to a side
blown-off air volume in the heating operation, and shows the relation between side
air volume and PPD index when upward blown-off air volume is set to 1.
[0027] The graph indicates that the PPD index value is minimum when the ratio of the upward
blown-off air volume to the side blown-off air volume is approximately 1:1, and that
the PPD index value rises as the side blown-off air volume increases.
[0028] In the present invention, the range in the ratio of the upward blown-off air volume
to the side blown-off air volume from 1:1 to 1:2 (PPD index value of approximately
6.7 or lower) has been adopted as a preferable range, from a viewpoint of making the
PPD index value better than the PPD index value (total mean value of 7.11) in radiator
heating operation.
[0029] This is explained with reference to examples shown in the drawings. As shown in Figs.
7 and 8, in the heating operation, the air volume control means is operated such that
blown-off air volume SW
1, SW
2 from side outlet(s) is equal to or larger than the blown-off air volume UW from the
upward outlet.
[0030] The ratio (air volume ratio) of the blown-off air volume UW from the upward outlet
to the blown-off air volume SW
1, SW
2 from the side outlet (s), UW:SW
1 (or SW
2), is preferably in the range of 1:2 to 1:1 in the case where side blown-off air is
blown-off from a side outlet on one side face (Fig. 7). In the case where the side
outlets are disposed on the left and right sides (Fig. 8), the ratio (air volume ratio)
of a blown-off air volume SW
1 from a left-side outlet to a blown-off air volume UW from an upward outlet and to
a blown-off air volume SW
2 from a right-side outlet is preferably ranged from 2:1:2 to 1:1:1.
[0031] Fig. 9 is a graph for setting a blown-off angle of side blown-off air in the heating
operation, and shows the relation between the blown-off angle of side blown-off air
S
1, S
2 and the PPD index.
[0032] According to the graph, the PPD index value becomes larger as the blown-off angle
of the side blown-off air S
1, S
2 increases, and the PPD index value exceeds approximately 6.7 when the blown-off angle
is larger than the horizontal (0°).
[0033] In the present invention, in view of this PPD index value, the horizontal (0°) is
set to the upper limit of the blown-off angle of the side blown-off air S
1, S
2, so that the blown-off angle does not become larger than the horizontal.
BRIEF DESCRIPTION OF THE DRAWINGS
[0034]
Fig. 1 is a perspective view of an indoor air conditioner in an embodiment according
to the present invention;
Fig. 2 is a graph showing relation between upward blown-off air volume and a PMV cozy
zone occupancy ratio when side blown-off air volume is set to 1 in a cooling operation;
Fig. 3 is a view showing a state of blowing off air only from a side outlet on one
side in the cooling operation;
Fig. 4 is a view showing a state of blowing off air from side outlets on both sides
in the cooling operation;
Fig. 5 is a graph showing relation between a side air blown-off angle and difference
in indoor vertical temperature in the cooling operation;
Fig. 6 is a graph showing relation between a side blown-off air volume and a PPD index
when an upward blown-off air volume is set to 1 in a heating operation;
Fig. 7 is a view showing a state of blowing off air only from a side outlet on one
side in the heating operation;
Fig. 8 is a view showing a state of blowing off air from side outlets on both sides
in the heating operation; and
Fig. 9 is a graph showing relation between a side blown-off angle and a PPD value
in the heating operation.
BEST MODE FOR CARRYING OUT THE INVENTION
[0035] An embodiment of the present invention will be described below. Fig. 1 shows a floor-installation
type indoor air conditioner 1 is disposed right under a window 3 as an example. As
described above, in the case where the indoor air conditioner 1 is disposed in the
vicinity of the window, in particular, excellent heating effect (cold draft decreasing
effect) is obtained against local temperature decrease in the vicinity of a window
at the coldest time of year.
[0036] The indoor air conditioner 1 is comprised of an induction port 21 formed on a front
face 11 of a main unit, an upward outlet 22 formed on a top face 12 of the main unit,
and side outlets 23, 24 formed on both-side faces 13, 14. The upward outlet 22 and
the side outlets 23, 24 respectively have swing flaps 32 and shutters 33 for controlling
quantities and angles of blown-off air.
[0037] As a result of analyzing tests, there is a tendency that difference of vertical temperature
decreases and the PMV cozy zone occupancy ratio becomes higher as the air blown-off
angle of side blown-off air S
1, S
2 becomes upwardly larger and as volume of the upward blown-off air increases in the
cooling operation (Fig. 3, Fig- 4).
[0038] In an embodiment shown in Figs. 3 and 4 (in a cooling operation), the air volume
ratio is controlled to become UC:SC
1 = 4:1 to 2:1 or SC
1:UC:SC
2 = 1:4:1 to 1:2:1, and also the shutters 33 for the side outlets 23, 24 are controlled
to be opened and closed so as to provide an air blown-off angle in the range of -20°
to +45°. In the case where temperature excessively decreases in the vicinity of the
floor surface, the shutters 33 in the side outlets 23, 24 may be completely closed.
[0039] An embodiment in a heating operation is then explained. In the heating operation,
the ratio of side blown-off air volume (SW
1, SW
2) to upward blown-off air volume (UW) is set to 2:1 to 1:1 (in the case of Fig. 7)
or 2:1:2 to 1:1:1 (in the case of Fig. 8) as stated above. In the above-shown embodiment,
the side air blown-off angle is preferably in the range of 0° (horizontal) to -45°
in the heating operation.
[0040] The indoor air conditioner of the present invention having the upward outlet and
the side outlets make it possible to optimally set the ratio of the side blown-off
air volume to the volume of upward blown-off air in each of cooling operation and
heating operation. Thereby, the indoor air conditioner of the present invention has
an effect of providing an air-conditioned space where nonuniformity in temperature
distribution is improved in comparison with the conventional conditioners.
1. An indoor air conditioner (1) having an upward outlet (22) formed on a top face (12)
of a main unit and a side outlet (23, 24) formed on at least one side face (13, 14)
of the main unit, the indoor air conditioner (1) comprising:
air volume control means for controlling blow of air so that a blown-off air volume
(UC) from the upward outlet (22) is larger than a blown-off air volume (SC1, SC2) from the side outlet (23, 24) in a cooling operation,
characterized in that:
a ratio of the blown-off air volume (UC) from the upward outlet (22) to the blown-off
air volume (SC1, SC2) from the side outlet (23, 24) is set to 2:1 to 4:1 in a case where a side blown-off
air (S1, S2) is blown-off from the side outlet (23, 24) on one of side faces (13, 14) of the
main unit.
2. The indoor air conditioner as defined in Claim 1, wherein the air volume control means
is a swing flap (32) or a shutter (33).
3. The indoor air conditioner as defined in Claim 1 or 2, wherein
a ratio of a blown-off air volume (SC1) from a left side outlet (23) to the blown-off air volume (UC) from the upward outlet
(22) and to a blown-off air volume (SC2) from a right side outlet (24) is set to 1:2:1 to 1:4:1 in a case where the side
outlets (23, 24) are disposed on both the left and right side faces (13, 14) of the
main unit.
4. The indoor air conditioner as defined in any one of Claims 1 to 3, wherein
an air blown-off angle from the side outlet (23, 24) is set to be not less than -20°.
5. The indoor air conditioner as defined in any one of Claims 1 to 4, wherein
the air volume control means is capable of controlling blow of air so that air from
the side outlet (23, 24) is blocked and air only from the upward outlet (22) is blown-off.
6. An indoor air conditioner having an upward outlet (22) formed on a top face (12) of
a main unit and a side outlet (23, 24) formed on a side face (13, 14) of the main
unit, the indoor air conditioner comprising:
air volume control means for controlling blow of air so that a blown-off air volume
(SW1, SW2) from the side outlet (23, 24) is equal to or larger than a blown-off air volume
(UW) from an upward outlet (22) in a heating operation,
characterized in that:
a ratio of the blown-off air volume (UW) from the upward outlet (22) to the blown-off
air volume (SW1, SW2) from the side outlet (23, 24) is set to 1:2 to 1:1 in a case where a side blown-off
air (S1, S2) is blown-off from the side outlet (23, 24) on one of side faces (13, 14) of the
main unit.
7. The indoor air conditioner as defined in Claim 6, wherein
the air volume control means is a swing flap (32) or a shutter (33).
8. The indoor air conditioner as defined in Claim 6 or 7, wherein
a ratio of a blown-off air volume (SW1) from a left-side outlet (23) to the blown-off air volume (UW) from the upward outlet
(22) and to a blown-off air volume (SW2) from a right-side outlet (24) is set to 2:1:2 to 1:1:1 in a case where the side
outlets (23, 24) are disposed on both the left and right side faces (13, 14) of the
main unit.
9. The indoor air conditioner as defined in any one of Claims 6 to 8, wherein
an air blown-off angle from the side outlet (23, 24) is set to be not larger than
the horizontal zero.
1. Innenraumklimaanlage (1) mit einem an einer oberen Fläche (12) einer Haupteinheit
ausgebildeten Aufwärtsauslass (22) und einem an zumindest einer Seitenfläche (13,
14) der Haupteinheit ausgebildeten Seitenauslass (23, 24), wobei die Innenraumklimaanlage
(1) umfasst:
ein Luftvolumensteuermittel zum derartigen Steuern einer Blasluft, dass in einem Kühlbetrieb
ein Ausblasluftvolumen (UC) von dem Aufwärtsauslass (22) größer ist als ein Ausblasluftvolumen
(SC1, SC2) von einem Seitenauslass (23, 24),
dadurch gekennzeichnet, dass:
ein Verhältnis des Ausblasluftvolumens (UC) vom Aufwärtsauslass (22) zu dem Ausblasluftvolumen
(SC1, SC2) vom Seitenauslass (23, 24) in einem Fall auf 2:1 bis 4:1 festgelegt wird, wo eine
Seitenausblasluft (S1, S2) von dem Seitenauslass (23, 24) an einer der Seitenflächen (13, 14) der Haupteinheit
ausgeblasen wird.
2. Innenraumklimaanlage gemäß Anspruch 1, bei der das Luftvolumensteuermittel eine Schwingklappe
(32) oder eine Schließeinrichtung (33) ist.
3. Innenraumklimaanlage gemäß Anspruch 1 oder 2, bei der
ein Verhältnis eines Ausblasluftvolumens (SC1) von einem linken Seitenauslass (23) zu dem Ausblasluftvolumen (UC) vom Aufwärtsauslass
(22) und zu einem Ausblasluftvolumen (SC2) von einem rechten Seitenauslass (24) in einem Fall auf 1:2:1 bis 1:4:1 festgelegt
wird, wo die Seitenauslässe (23, 24) an sowohl der linken als auch der rechten Seitenfläche
(13, 14) der Haupteinheit angeordnet sind.
4. Innenraumklimaanlage gemäß einem der Ansprüche 1 bis 3, bei der
ein Luftausblaswinkel vom Seitenauslass (23, 24) auf nicht weniger als -20° festgelegt
wird.
5. Innenraumklimaanlage gemäß einem der Ansprüche 1 bis 4, bei der
das Luftvolumensteuermittel die Blasluft derart steuern kann, dass Luft vom Seitenauslass
(23, 24) blockiert wird, und Luft lediglich vom Aufwärtsauslass (22) ausgeblasen wird.
6. Innenraumklimaanlage mit einem an einer oberen Fläche (12) der Haupteinheit ausgebildeten
Aufwärtsauslass (22) und einem an zumindest einer Seitenfläche (13, 14) der Haupteinheit
ausgebildeten Seitenauslass (23, 24), wobei die Innenraumklimaanlage (1) umfasst:
ein Luftvolumensteuermittel zum derartigen Steuern der Blasluft, dass in einem Erwärmungsbetrieb
ein Ausblasluftvolumen (SW1, SW2) vom Seitenauslass (23, 24) gleich oder größer ist als ein Ausblasluftvolumen (UW)
von einem Aufwärtsauslass (22),
dadurch gekennzeichnet, dass
ein Verhältnis des Ausblasluftvolumens (UW) vom Aufwärtsauslass (22) zu dem Ausblasluftvolumen
(SW1, SW2) vom Seitenauslass (23, 24) in einem Fall auf 1:2 bis 1:1 festgelegt wird, wo eine
Seitenausblasluft (S1, S2) vom Seitenauslass (23, 24) an einer der Seitenflächen (13, 14) der Haupteinheit
ausgeblasen wird.
7. Innenraumklimaanlage gemäß Anspruch 6, bei der
das Luftvolumensteuermittel eine Schwingklappe (32) oder eine Schließeinrichtung (33)
ist.
8. Innenraumklimaanlage gemäß Anspruch 6 oder 7, bei der
ein Verhältnis eines Ausblasluftvolumens (SW1) von einem linksseitigen Seitenauslass (23) zu dem Ausblasluftvolumen (UW) vom Aufwärtsauslass
(22) und zu einem Ausblasluftvolumen (SW2) von einem rechtsseitigen Auslass (24) in einem Fall auf 2:1:2 bis 1:1:1 festgelegt
wird, wo die Seitenauslässe (23, 24) an sowohl der linken als auch der rechten Seitenfläche
(13, 14) der Haupteinheit angeordnet sind.
9. Innenraumklimaanlage gemäß einem der Ansprüche 6 bis 8, bei der
ein Luftausblaswinkel vom Seitenauslass (23, 24) nicht größer als die horizontale
Null festgelegt wird.
1. Climatisation intérieure (1) ayant un orifice de sortie supérieur (22) formé sur une
face supérieure (12) d'une unité principale et un orifice de sortie latéral (23, 24)
formé sur au moins une face latérale (13, 14) de l'unité principale, la climatisation
intérieure (1) comprenant :
des moyens de commande de volume d'air pour commander le flux d'air de telle manière
qu'un volume d'air soufflé (UC) depuis l'orifice de sortie supérieur (22) est supérieur
à un volume d'air soufflé (SC1, SC2) depuis l'orifice de sortie latéral (23, 24) dans une fonction de refroidissement,
caractérisé en ce que :
un rapport du volume d'air soufflé (UC) depuis l'orifice de sortie supérieur (22)
au volume d'air soufflé (SC1, SC2) depuis l'orifice de sortie latéral (23, 24) est réglé à de 2 : 1 à 4 : 1 dans un
cas où un air soufflé latéral (S1, S2) est soufflé depuis l'orifice de sortie latéral (23, 24) sur l'une des faces latérales
(13, 14) de l'unité principale.
2. Climatisation intérieure selon la revendication 1, dans laquelle les moyens de commande
de volume d'air sont un volet basculant (32) ou un volet obturateur (33).
3. Climatisation intérieure selon la revendication 1 ou 2, dans laquelle
un rapport d'un volume d'air soufflé (SC1) depuis un orifice de sortie latéral gauche (23) au volume d'air soufflé (UC) depuis
l'orifice de sortie supérieur (22) et à un volume d'air soufflé (SC2) depuis un orifice de sortie latéral droit (24) est réglé à de 1 : 2 : 1 à 1 : 4
: 1 dans un cas ou les orifices de sortie latéraux (23, 24) sont disposés sur les
deux faces latérales (13, 14) gauche et droite de l'unité principale.
4. Climatisation intérieure selon l'une quelconque des revendications 1 à 3, dans laquelle
un angle de soufflage d'air depuis l'orifice de sortie latéral (23, 24) est réglé
pour ne pas être inférieur à -20°.
5. Climatisation intérieure selon l'une quelconque des revendications 1 à 4, dans laquelle
les moyens de commande de volume d'air peuvent commander le soufflage d'air de telle
manière que l'air venant de l'orifice de sortie latéral (23, 24) est bloqué et seul
l'air venant de l'orifice de sortie supérieur (22) est soufflé.
6. Climatisation intérieure ayant un orifice de sortie supérieur (22) formé sur une face
supérieure (12) d'une unité principale et un orifice de sortie latéral (23, 24) formé
sur une face latérale (13, 14) de l'unité principale, la climatisation intérieure
(1) comprenant :
des moyens de commande de volume d'air pour commander le flux d'air de telle manière
qu'un volume d'air soufflé (SW1, SW2) depuis l'orifice de sortie latéral (23, 24) est supérieur ou égal à un volume d'air
soufflé (UW) depuis l'orifice de sortie supérieur (22) dans une fonction de chauffage,
caractérisé en ce que :
un rapport du volume d'air soufflé (UW) depuis l'orifice de sortie supérieur (22)
au volume d'air soufflé (SW1, SW2) depuis l'orifice de sortie latéral (23, 24) est réglé à de 1 : 2 à 1 : 1 dans un
cas où un air soufflé latéral (S1, S2) est soufflé depuis l'orifice de sortie latéral (23, 24) sur l'une des faces latérales
(13, 14) de l'unité principale.
7. Climatisation intérieure selon la revendication 6, dans laquelle
les moyens de commande de volume d'air sont un volet basculant (32) ou un volet d'obturation
(33).
8. Climatisation intérieure selon la revendication 6 ou 7, dans laquelle
un rapport d'un volume d'air soufflé (SW1) depuis un orifice de sortie latéral gauche (23) au volume d'air soufflé (UW) depuis
l'orifice de sortie supérieur (22) et à un volume d'air soufflé (SW2) depuis un orifice de sortie latéral droit (24) est réglé à de 2 : 1 : 2 à 1 : 1
: 1 dans un cas ou les orifices de sortie latéraux (23, 24) sont disposés sur les
deux faces latérales (13, 14) gauche et droite de l'unité principale.
9. Climatisation intérieure selon l'une quelconque des revendications 6 à 8, dans laquelle
un angle de soufflage d'air depuis l'orifice de sortie latéral (23, 24) est réglé
pour n'être pas supérieur au zéro horizontal.