EP0427583A1 - Method of air conditioning of rooms equipped with a false floor - Google Patents

Method of air conditioning of rooms equipped with a false floor Download PDF

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Publication number
EP0427583A1
EP0427583A1 EP19900402901 EP90402901A EP0427583A1 EP 0427583 A1 EP0427583 A1 EP 0427583A1 EP 19900402901 EP19900402901 EP 19900402901 EP 90402901 A EP90402901 A EP 90402901A EP 0427583 A1 EP0427583 A1 EP 0427583A1
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EP
European Patent Office
Prior art keywords
air
air conditioner
room
diffusion
shutter
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Granted
Application number
EP19900402901
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German (de)
French (fr)
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EP0427583B1 (en
Inventor
Patrick G. Gorsse
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RC CONDIZIONATORI S.P.A.
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RC CONDIZIONATORI SpA
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Publication of EP0427583A1 publication Critical patent/EP0427583A1/en
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Publication of EP0427583B1 publication Critical patent/EP0427583B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling

Definitions

  • the present invention relates to an air conditioning method designed for premises equipped with raised floors over the entire surface (mainly modern offices, whether or not partitioned)
  • air conditioning of offices is traditionally carried out by fixed elements which diffuse and take up the air conditioning in the atmosphere (air conditioner, central processing, fan coil, ejector convector, diffuser etc ).
  • air conditioning is carried out by reverse air conditioners, the air treated by the air conditioner is blown into the raised floor and under the electronic elements or into the atmosphere by perforated tiles, the air intake takes place directly in the upper part of the air conditioner or through a suitable duct or false ceiling.
  • the present invention aims to provide air conditioning "all floor” supply and return air conditioning without having the restrictions and disadvantages of the existing methods and described above, and offering greater modularity allowing all changes and modifications of installation without structural modifications of the basic elements.
  • the raised floor retaining its primary function which is to allow the free and easily accessible passage of all cables and other fluids.
  • the air conditioning process "all floor" object of this invention consists of the following elements: -one or more air conditioners (A) of reverse blow type, with adapter box (H) comprising one or more motorized relay fans allowing the air conditioner to take up air from the raised floor and put it Ci in depression, and a blowing box (B) fixed under the air conditioner and comprising several air outlet ferrules for the connection of the ducts.
  • air return tiles identical to standard perforated tiles and ensuring the return of ambient air to the air conditioner.
  • room thermostats ensuring the control of the room temperature and the control of the motor (I) and the device flap (D) of the diffusion panel.
  • -a general electrical box including relaying, power supply and protection of the regulation device (D) (motor).
  • the air conditioner (A) blows the treated air at a constant temperature (for example 20 ° C) into the duct (C) and the regulation device (D), if the ambient temperature controlled by the thermostat (F) is too high , the flap of the device (D) will descend, by the commissioning of the engine (I), and allow the treated air to enter the room by passing through the slab (E) Figure 2- page 2 / 3.
  • a constant temperature for example 20 ° C
  • the thermostat (F) if the ambient temperature controlled by the thermostat (F) is too high , the flap of the device (D) will descend, by the commissioning of the engine (I), and allow the treated air to enter the room by passing through the slab (E) Figure 2- page 2 / 3.
  • the ambient air returns to the air conditioner (A) via the return slab (G) and the plenum which constitutes the raised floor, this plenum being in constant depression by the air conditioning adapter box (H), when the ambient temperature of the room will have reached the desired value (close to 20 ° C) the shutter of the device (D) will go up by the commissioning of the engine (I) and the air blown by the air conditioner will be discharged directly into the plenum and towards the recovery of the air conditioner figure 3- page 2/3.
  • the shutter of the device (D) can act either in all or nothing (high or low position) or in proportional if one seeks a high precision of the ambient temperature, in this last case, the thermostat (F) and the motor (I) will be proportional action.
  • the process can also provide cooling in summer and reheating in winter.
  • the air conditioner will then be equipped with a hot battery (hot or electric water) depending on the equipment of the air conditioner it is also possible to treat the air humidity (humidification and dehumidification) especially if the room is for IT purposes.
  • the air conditioner is equipped with its own regulation with temperature probe (and hygrometry if necessary) on the air intake of the air conditioner.
  • the number of air conditioners, diffusion and return slabs is directly linked to the thermal balance which will be established for each surface to be air conditioned.
  • the position of each slab (distribution and recovery) will be determined according to the location of the various elements constituting the room, but may be moved at any time, each slab (standard 600X600) being interchangeable.
  • the drawing Page 3/3 shows an example of installation of the different elements that make up the process (an air conditioner for 3 offices).

Abstract

This method allows the blowing and the recovery of the conditioned air via the empty space created under the false floor - it comprises the reversed blowing conditioner (A) equipped with a blowing box (B) and with a recovery box (H), a number of diffusion slabs (E) and a device (D) comprising a shutter and a motor (I). Ambience control is carried out by a thermostat (F) which controls the motor (I) and the shutter. When the room requires treatment, the shutter assumes the low position and the air penetrates into the room, the air returns to the conditioner via the recovery slab (G) which is subject to low pressure, and, when the room has reached the appropriate temperature, the shutter assumes the high position and the air returns directly to the conditioner. All the elements constituting the method are mobile and displaceable at any moment. <IMAGE>

Description

La présente invention concerne un procédé de climatisation conçu pour les locaux équipés de plancher surélevé sur toute la surface (principalement bureaux modernes, qu'ils soient ou non cloisonnés)The present invention relates to an air conditioning method designed for premises equipped with raised floors over the entire surface (mainly modern offices, whether or not partitioned)

La climatisation des bureaux est traditionnellement effectuée par des éléments fixes qui diffusent et reprennent l'air climatisé dans l'ambiance (climatiseur, centrale de traitement, ventilo-convecteur, éjecto-convecteur, diffuseur etc...).The air conditioning of offices is traditionally carried out by fixed elements which diffuse and take up the air conditioning in the atmosphere (air conditioner, central processing, fan coil, ejector convector, diffuser etc ...).

Dans les locaux à usage informatique équipés de plancher surélevé, la climatisation est effectuée par des climatiseurs à soufflage inversé, l'air traité par le climatiseur est soufflé dans le plancher surélevé et sous les éléments électroniques ou dans l'ambiance par des dalles perforées, la reprise de l'air se fait directement en partie haute du climatiseur ou par l'intermédiaire d'une gaine ou faux plafond adapté.In rooms for computer use equipped with raised floor, air conditioning is carried out by reverse air conditioners, the air treated by the air conditioner is blown into the raised floor and under the electronic elements or into the atmosphere by perforated tiles, the air intake takes place directly in the upper part of the air conditioner or through a suitable duct or false ceiling.

Dans les bureaux modernes et dits "flexibles" équipés de plancher surélevé, celui-ci est utilisé quelquefois pour le soufflage de l'air avec des unités terminales fixes de diffusion situées le long des parois et équipées de ventilateur et réchauffage électrique. La reprise se fait par le vide ou plénum que crée la plancher surélevé, celui-ci est cloisonné de façon à créer des zones de reprise bien séparées des zones de soufflage.In modern and so-called "flexible" offices equipped with raised floors, these are sometimes used for blowing air with fixed terminal diffusion units located along the walls and equipped with fans and electric heating. The recovery is done by the vacuum or plenum created by the raised floor, it is partitioned so as to create recovery areas well separated from the blowing areas.

Cette technique fait perdre au système de climatisation et au plancher surélevé son intérêt modulaire et flexible. En effet, en cas de modification d'implantation des bureaux ou changement du bilan thermique de chaque local, il est nécessaire d'entreprendre des travaux conséquents pour modifier le cloisonnement dans le plancher surélevé afin de correspondre aux nouvelles implantations.This technique makes the air conditioning system and the raised floor lose its modular and flexible interest. In fact, in the event of a modification to the layout of the offices or a change in the thermal balance of each room, it is necessary to undertake substantial work to modify the partitioning in the raised floor in order to correspond to the new layouts.

Ces travaux sont importants car les cloisonnements, pour être efficaces, doivent être étanches, les éléments de diffusion sont fixés et doivent être désassemblés, enfin, les divers cloisonnements ne permettent plus le passage libre et à tout moment modifiable des différents câbles (électrique, téléphone, informatique et autres réseaux) ce qui est l'objet même et la justification du plancher surélevé.This work is important because the partitions, to be effective, must be watertight, the elements of distribution are fixed and must be disassembled, finally, the various partitions no longer allow the free and at any time modifiable passage of the different cables (electrical, telephone, IT and other networks) which is the very purpose and justification of the raised floor .

La présente invention a pour but d'assurer une climatisation "tout plancher" soufflage et reprise de l'air climatisé sans avoir les restrictions et inconvénients des procédés existants et décrits ci-dessus, et offrant une plus grande modularité autorisant toutes évolutions et modifications d'implantation sans modifications structurelles des éléments de base. Le plancher surélevé conservant sa fonction première qui est de permettre le passage libre et facilement accessible de tout les câbles et autres fluides.The present invention aims to provide air conditioning "all floor" supply and return air conditioning without having the restrictions and disadvantages of the existing methods and described above, and offering greater modularity allowing all changes and modifications of installation without structural modifications of the basic elements. The raised floor retaining its primary function which is to allow the free and easily accessible passage of all cables and other fluids.

Le procédé de climatisation "tout plancher" objet de cette invention se compose en éléments suivants:
-un ou plusieurs climatiseurs (A) de type à soufflage inversé, avec caisson d'adaptation (H) comportant un ou plusieurs moto-ventilateurs relais permettant au climatiseur de faire la reprise de l'air par le plancher surélevé et de mettre celui-ci en dépression, et un caisson de soufflage (B) fixé sous le climatiseur et comportant plusieurs viroles de sortie d'air pour le raccordement des gaines.
-une ou plusieurs dalles de diffusion de l'air (E) identiques aux dalles perforées standard équipées en sous face d'un dispositif (D) comprenant un volet et un moteur (I) et permettant la diffusion de l'air soit dans l'ambiance soit vers la reprise du climatiseur.
-une ou plusieurs dalles de reprise de l'air (G) identiques aux dalles perforées standard et assurant la reprise de l'air ambiant vers le climatiseur.
-un ou plusieurs thermostats d'ambiance (F) assurant le contrôle de la température ambiante et la commande du moteur (I) et du volet du dispositif (D) de la dalle de diffusion.
-un coffret électrique général comprenant le relayage, l'alimentation et la protection du dispositif de régulation (D) (moteur).The air conditioning process "all floor" object of this invention consists of the following elements:
-one or more air conditioners (A) of reverse blow type, with adapter box (H) comprising one or more motorized relay fans allowing the air conditioner to take up air from the raised floor and put it Ci in depression, and a blowing box (B) fixed under the air conditioner and comprising several air outlet ferrules for the connection of the ducts.
-one or more air diffusion slabs (E) identical to standard perforated slabs fitted on the underside of a device (D) comprising a shutter and a motor (I) and allowing the diffusion of air either in the atmosphere is towards the return of the air conditioner.
-one or more air return tiles (G) identical to standard perforated tiles and ensuring the return of ambient air to the air conditioner.
-one or more room thermostats (F) ensuring the control of the room temperature and the control of the motor (I) and the device flap (D) of the diffusion panel.
-a general electrical box including relaying, power supply and protection of the regulation device (D) (motor).

PRINCIPE DE FONCTIONNEMT (SCHEMA PAGE 1/3):PRINCIPLE OF OPERATION (DIAGRAM PAGE 1/3):

Le climatiseur (A) souffle l'air traité à une température constante (par exemple 20°C) dans la gaine (C) et le dispositif de régulation (D), si la température ambiante controlée par le thermostat (F) est trop élevée, le volet du dispositif (D) va descendre, par la mise en service du moteur (I), et permettre à l'air traité de pénétrer dans le local en passant au travers de la dalle (E) Figure 2- page 2/3.The air conditioner (A) blows the treated air at a constant temperature (for example 20 ° C) into the duct (C) and the regulation device (D), if the ambient temperature controlled by the thermostat (F) is too high , the flap of the device (D) will descend, by the commissioning of the engine (I), and allow the treated air to enter the room by passing through the slab (E) Figure 2- page 2 / 3.

L'air ambiant retourne au climatiseur (A) par la dalle de reprise (G) et le plénum que constitue le plancher surélevé, ce plénum étant en constante dépression par le caisson d'adaptation (H) du climatiseur, losque la température ambiante du local aura atteint la valeur souhaitée (proche de 20°C) le volet du dispositif (D) va monter par la mise en service du moteur (I) et l'air soufflé par le climatiseur sera rejeté directement dans le plénum et vers la reprise du climatiseur figure 3- page 2/3.The ambient air returns to the air conditioner (A) via the return slab (G) and the plenum which constitutes the raised floor, this plenum being in constant depression by the air conditioning adapter box (H), when the ambient temperature of the room will have reached the desired value (close to 20 ° C) the shutter of the device (D) will go up by the commissioning of the engine (I) and the air blown by the air conditioner will be discharged directly into the plenum and towards the recovery of the air conditioner figure 3- page 2/3.

Le volet du dispositif (D) peut agir soit en tout ou rien (position haute ou basse) soit en proportionnel dans le cas où l'on cherche une grande précision de la température ambiante, dans ce dernier cas, le thermostat (F) et le moteur (I) seront à action proportionnelle. Le procédé dont le fonctionnement est décrit ci-dessous peut aussi bien assurer le refroidissement en été et le réchauffage en hiver. Le climatiseur sera alors équipé d'une batterie chaude (eau chaude ou éléctrique) selon l'équipement du climatiseur il est possible de traiter aussi l'hygrométrie de l'air (fonction humidification et déshumidification) notamment si le local est à vocation informatique.The shutter of the device (D) can act either in all or nothing (high or low position) or in proportional if one seeks a high precision of the ambient temperature, in this last case, the thermostat (F) and the motor (I) will be proportional action. The process, the operation of which is described below, can also provide cooling in summer and reheating in winter. The air conditioner will then be equipped with a hot battery (hot or electric water) depending on the equipment of the air conditioner it is also possible to treat the air humidity (humidification and dehumidification) especially if the room is for IT purposes.

Le climatiseur est équipé de sa propre régulation avec sonde de température (et hygrométrie si nécessaire) sur la reprise de l'air du climatiseur.The air conditioner is equipped with its own regulation with temperature probe (and hygrometry if necessary) on the air intake of the air conditioner.

Le nombre de climatiseur, de dalle de diffusion et de reprise est directement lié au bilan thermique qui sera établi pour chaque surface à climatiser. La position de chaque dalle (diffusion et reprise) sera déterminée en fonction de l'implantation des divers éléments constituant le local, mais pourra être déplacé à tout moment, chaque dalle (au standard 600X600) étant interchangeable. Le dessin Page 3/3 montre un exemple d'implantation des différents éléments qui composent le procédé (un climatiseur pour 3 bureaux).The number of air conditioners, diffusion and return slabs is directly linked to the thermal balance which will be established for each surface to be air conditioned. The position of each slab (distribution and recovery) will be determined according to the location of the various elements constituting the room, but may be moved at any time, each slab (standard 600X600) being interchangeable. The drawing Page 3/3 shows an example of installation of the different elements that make up the process (an air conditioner for 3 offices).

Claims (6)

1) Le procédé de climatisation pour les bureaux modernes équipés de plancher surélevé est caractérisé par l'utilisation du vide (ou plénum), créé par le plancher surélevé, pour le soufflage et la reprise de l'air climatisé, tout en conservant la totale modularité et flexibilité de celui-ci. Le climatiseur (A) souffle l'air traité dans la gaine (C) et dans l'ambiance par la dalle de diffusion (E), la reprise de l'air ambiant se fait par la dalle de reprise (G) et le vide technique créé par le plancher surélevé qui est en constante dépression par le climatiseur (A) et le caisson (H), avec une régulation spécifique à chaque bureau.1) The air conditioning process for modern offices equipped with raised floors is characterized by the use of a vacuum (or plenum), created by the raised floors, for the supply and return of air conditioning, while retaining the total modularity and flexibility of it. The air conditioner (A) blows the treated air into the duct (C) and into the atmosphere by the diffusion panel (E), the ambient air is taken in by the intake panel (G) and the vacuum technique created by the raised floor which is constantly depressed by the air conditioner (A) and the box (H), with specific regulation for each office. 2) Le procédé selon la revendication 1 et caractérisé par un dispositif (D) fixé sous la dalle de diffusion (E) et permettant à l'air traité de pénétrer soit dans l'ambiance si celle-ci nécessite un traitement (refroidissement ou réchauffage) soit directement à la reprise du climatiseur (A) par le vide technique sous le plancher surélevé, si le local ne demande pas de traitement.2) The method according to claim 1 and characterized by a device (D) fixed under the diffusion slab (E) and allowing the treated air to enter either the atmosphere if it requires treatment (cooling or heating ) or directly when the air conditioner (A) is taken up by the technical vacuum under the raised floor, if the room does not require treatment. 3) Le procédé selon la revendication 1 et 2 est caractérisé en ce que la régulation est spécifique à chaque bureau et assure une température constante quelque soit la variation des charges calorifiques, le thermostat (F) commande en tout ou rien ou en proportionnel le moteur (I) qui entrainera l'ouverture ou la fermeture du volet du dispositif (D) fixé sous la dalle de diffusion.3) The method according to claim 1 and 2 is characterized in that the regulation is specific to each office and ensures a constant temperature whatever the variation in the heat loads, the thermostat (F) controls all or nothing or proportional to the motor (I) which will open or close the shutter of the device (D) fixed under the diffusion slab. 4) Le procédé selon la revendication 1-2 et 3 est caractérisé par un caisson d'adaptation (H) muni d'un ou plusieurs moto-ventilateurs relais permettant au climatiseur à soufflage inversé d'assurer la reprise de l'air par le dessous et de mettre en dépression le vide technique créé par le plancher surélevé.4) The method according to claim 1-2 and 3 is characterized by an adaptation box (H) provided with one or more relay motor-fans allowing the reverse-air conditioner to ensure the return of air by the below and vacuum the technical vacuum created by the raised floor. 5) Le procédé selon la revendication 1-2-3 et 4 est caractérisé par un caisson (B) de sortie d'air, étanche fixé sous le climatiseur et muni de viroles cylindriques permettant la fixation rapide de gaines souples (C).5) The method according to claim 1-2-3 and 4 is characterized by a sealed air outlet box (B) fixed under the air conditioner and provided with cylindrical ferrules allowing the rapid fixing of flexible sheaths (C). 6) Le procédé selon la revendication 1-2-3-4 et 5 est caractérisé par une totale modularité et mobilité de chaque élément.
Les gaines (c), les dalles de diffusion (E), les dalles de reprise (G) le thermostat (F) peuvent être déplacés à tout moment pour s'adapter à toute nouvelle configuration du local (ou des locaux) à climatiser, le nombre des éléments ci-dessus mentionnés peut être à tout moment augmenté ou diminué pour correspondre à un nouveau bilan thermique résultant de modification structurelle (nouveau cloisennement, déplacement de poste de travail, nouveau matériel électronique etc...) Le procédé permet de conserver au plancher surélevé son aspect modulaire et l'utilisation de celui-ci pour le passage libre de tous les câbles et fluides.6) The method according to claim 1-2-3-4 and 5 is characterized by a total modularity and mobility of each element.
The ducts (c), the diffusion slabs (E), the return slabs (G) the thermostat (F) can be moved at any time to adapt to any new configuration of the room (or rooms) to be air conditioned, the number of the elements mentioned above can be increased or decreased at any time to correspond to a new thermal balance resulting from structural modification (new partitioning, displacement of work station, new electronic material etc ...) The process makes it possible to preserve the raised floor its modular appearance and the use of it for the free passage of all cables and fluids.
EP19900402901 1989-11-06 1990-10-16 Method of air conditioning of rooms equipped with a false floor Expired - Lifetime EP0427583B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8914483 1989-11-06
FR8914483A FR2654196B1 (en) 1989-11-06 1989-11-06 AIR CONDITIONING PROCESS FOR PREMISES EQUIPPED WITH RAISED FLOOR.

Publications (2)

Publication Number Publication Date
EP0427583A1 true EP0427583A1 (en) 1991-05-15
EP0427583B1 EP0427583B1 (en) 1994-07-27

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Application Number Title Priority Date Filing Date
EP19900402901 Expired - Lifetime EP0427583B1 (en) 1989-11-06 1990-10-16 Method of air conditioning of rooms equipped with a false floor

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EP (1) EP0427583B1 (en)
DE (1) DE69011047T2 (en)
ES (1) ES2060982T3 (en)
FR (1) FR2654196B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607116A1 (en) * 1993-01-13 1994-07-20 Hiross International Corporation B.V. End-piece for room air conditioners
WO2001009555A1 (en) * 1999-07-30 2001-02-08 Caterpillar Inc. Modular air handling system and method for providing humidity and pressure control
WO2010118466A1 (en) * 2009-04-17 2010-10-21 Petar Zlatar An access floor assembly and components therefor
CN103375843A (en) * 2012-04-23 2013-10-30 彭辰祺 Novel energy-saving air conditioning terminal system
CN105485812A (en) * 2016-01-15 2016-04-13 南京佳力图空调机电有限公司 Energy-saving type air conditioner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19855497B4 (en) * 1998-12-01 2005-02-03 Altherm GmbH Ground source Luftkonvektor
DE10210417B4 (en) * 2002-03-09 2004-02-05 Rittal Gmbh & Co. Kg Arrangement for cooling a control cabinet with heat-generating internals arranged in the interior

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207718A2 (en) * 1985-07-05 1987-01-07 Atlas Air (Australia) Pty. Limited Zoned air conditioning system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207718A2 (en) * 1985-07-05 1987-01-07 Atlas Air (Australia) Pty. Limited Zoned air conditioning system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607116A1 (en) * 1993-01-13 1994-07-20 Hiross International Corporation B.V. End-piece for room air conditioners
WO2001009555A1 (en) * 1999-07-30 2001-02-08 Caterpillar Inc. Modular air handling system and method for providing humidity and pressure control
WO2010118466A1 (en) * 2009-04-17 2010-10-21 Petar Zlatar An access floor assembly and components therefor
CN103375843A (en) * 2012-04-23 2013-10-30 彭辰祺 Novel energy-saving air conditioning terminal system
CN105485812A (en) * 2016-01-15 2016-04-13 南京佳力图空调机电有限公司 Energy-saving type air conditioner
CN105485812B (en) * 2016-01-15 2018-05-08 南京佳力图机房环境技术股份有限公司 A kind of energy-saving air conditioning

Also Published As

Publication number Publication date
FR2654196A1 (en) 1991-05-10
ES2060982T3 (en) 1994-12-01
DE69011047D1 (en) 1994-09-01
DE69011047T2 (en) 1995-03-23
FR2654196B1 (en) 1994-11-18
EP0427583B1 (en) 1994-07-27

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