JP3745997B2 - Floor radiation device for floor radiation and air conditioning air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a cooling / heating device in combination with a floor radiant cooling / heating device using cold / hot water and a floor blowing air conditioning air-conditioning / heating device using cold / hot air. It is possible to arrange a power supply and wiring cord for office equipment such as a computer, a copier, a telephone or a facsimile in the air supply passage. The present invention relates to floor radiation and a floor panel device in an air conditioning air conditioner.
[0002]
[Prior art]
Conventionally, cold water or hot water from a cold / hot water generator that generates cold water and hot water is sent to a cold / hot water pipe disposed on the lower surface of the floor panel covered with a coating material having high thermal conductivity such as mortar. A floor radiant air conditioner that cools and heats the room by floor radiation, and cool air or warm air from an air conditioner that generates cold air and hot air is sent to an air supply passage on the lower surface of the floor panel, A floor panel device used for a cooling / heating device in combination with a floor blowing air-conditioning air conditioner that cools and heats a room with cold air and hot air is blown into the room from a blow-out opening that is opened in an edge floor panel. It is disclosed in the gazette.
[0003]
[Problems to be solved by the invention]
However, the floor panel device used in the conventional air conditioner is filled with a covering material between the cold / hot water pipe and the floor panel, and the both are fixed together, and the floor panel cannot be opened. There is a problem that inspection and replacement cannot be performed, and power cords and wiring cords for office equipment such as telephones and personal computers cannot be provided on the lower surface of the floor panel.
[0004]
The present invention has been made to solve the above-mentioned problems, and by enabling the opening and closing of the floor panel, the inspection and replacement of the cold / hot water pipe can be easily performed, and the cold / hot water pipe that is passed through the cold / hot water pipe is provided. The floor panel is cooled and heated with warm water, and the room is cooled and heated with floor radiation. The air cooled and heated in the space is sent to the lower surface of the floor panel, and the air is sent from the outlet to the room. The floor can be used to cool and heat the room by supplying air to the room, and in addition, the space can be provided with power cords and wiring cords for office equipment such as telephones and personal computers. A panel device is to be provided.
[0005]
[Means for Solving the Problems]
The present invention provides a cold / hot water pipe for passing cold / hot water generated by a heat source device on each of the rows on a support leg erected over a plurality of rows at a predetermined interval on a slab. A long heat transfer plate that is bent and held so as to be continuous in a wavy shape is fixed, and a plurality of short cover plates having a reverse concave cross section are joined on the heat transfer plate. And a plurality of panel boards having the same length as the cover plate having a cooling / dissipating action are joined and connected to both sides of each cover plate, and the heat transfer plate, the cover plate, and the panel board are further provided. A floor panel is formed by tightening and fixing to the upper surface of the support leg with a tightening bolt, and a ventilation space for cold / hot air conditioned air generated by an air conditioner between the slab and the floor panel, and a cord arrangement. By adopting the means of providing a space part that also serves as an installation space, Resolved.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. A floor panel device in a floor radiation and air conditioning air conditioner according to the present invention is erected over a plurality of rows with a predetermined interval on a slab 1. A long heat transfer plate 4 is fixed on the support leg 2 so as to bend and hold the cold / hot water pipe 3 for passing cold / warm water so as to be continuous in a wave shape across the rows. On the heat transfer plate 4, a plurality of short cover plates 5 having a reverse concave cross section are joined and covered, and on both sides of each cover plate 5, the same length of the cover plate 5 is allowed to cool. A plurality of panel boards 6 having a heat radiation action are joined and connected, and the heat transfer plate 4, the cover plate 5 and the panel board 6 are fastened and fixed to the upper surface of the support leg 2 with the fastening bolts 7 and the floor panel P And a ventilation space for cold / hot air conditioned air between the slab 1 and the floor panel P. And telephones, have been formed by providing a space portion 8 also serving as a inter disposing space for power supply and wiring codes office equipment such as a personal computer.
[0007]
The heat transfer plate 4 is not particularly limited, but it is recommended that the heat transfer plate 4 be formed of a metal plate with good thermal conductivity, preferably an aluminum plate. That is, the heat transfer plate 4 is provided with a horizontal heat transfer piece 9 on the outer side in the longitudinal direction of the long aluminum plate, and the cold / hot water pipe 3 is connected to the inner side continuous with the heat transfer piece 9 from above. A sandwiching part 11 having a substantially annular cross section provided with a narrow opening 10 is provided on the lower surface so as to be sandwiched, and a horizontal narrow extension piece 12 is provided at the inner end of the sandwiching part 11. Protrusively formed.
[0008]
On the other hand, the support leg 2 that is erected on the slab 1 and fixes the heat transfer plate 4, the cover plate 5, and the panel board 6 on the upper side is wide and is installed on the slab 1 at the lower end of the column 13. In addition to fixing the bottom plate 14, the heat transfer plate 4, the cover plate 5, and the end portions of the panel board 6 positioned on both sides of the cover plate 5 are integrally fixed to the upper end of the column 13. A holding plate 15 is fixed, and in order to reinforce the holding force of the holding plate 15, a hook-like reinforcing plate 16 is connected and fixed between the upper peripheral surface of the support column 13 and the bottom surface of the holding plate 15. Has been.
[0009]
Two heat transfer plates 4 each holding the cold / hot water pipe 3 between the holding portions 11 on the holding plates 15 of the support legs 2 installed in a plurality of rows on the slab 1 are symmetrically provided. Each piece is supported by a fixing method (not shown) such as a rivet, and vertical pieces 18 are suspended on both sides of the horizontal plate 17 by a short metal plate over the entire length of each heat transfer plate 4. In addition, a plurality of cover plates 5 each having a substantially concave cross-section are formed by projecting flanges 19 on both sides of the horizontal plate 17 to be crowned.
[0010]
Furthermore, in the present invention, in order to increase the cooling / heating efficiency, it is necessary to increase the amount of cold / hot water flow. Therefore, since it is necessary to use the long cold / hot water pipe 3, each cold / hot water pipe 3 is bent in each edge part of the said heat exchanger plate 4 (FIG. 8), and the heat exchanger plate 4 of the next row is clamped It is sandwiched between the heat transfer plates 4 in succession in a wave shape by being repeatedly bent in the following manner.
[0011]
On the other hand, the panel board 6 joined to both sides of the upper portion of the cover plate 5 has a good thermal conductivity with a concave section in the peripheral portion of the upper plate 20 made of a metal plate having a good thermal conductivity, preferably an aluminum plate. A peripheral portion of a lower plate 21 made of a metal plate, preferably an aluminum plate, is fixed integrally, and a flange 22 is provided on the periphery, and a plurality of hemispherical shapes are provided on the lower plate 21 in a plurality of rows. Concave portions 23 are provided, and small holes 24 are formed in the joints between the top surfaces of the respective concave portions 23 and the upper surface plate 20, and a large number of gaps are formed between the back surface of the recessed portions 23 and the lower surface of the upper surface plate 20. A portion 25 is provided and is formed in a rectangular shape with the same length and height as the cover plate 5.
[0012]
The heat transfer plate 4 having the above-described structure holds the cold / hot water pipe 3 in the holding portion 11 and is fixed to each holding plate 15 of the support leg 2 in a symmetrical manner by two. 4 and the upper surface portion of the heat transfer piece 9 excluding the upper surface portion of the extension piece 12 and the sandwiching portion 11 and the portion where the panel board 6 to be described later is placed on the end portion, and the cold / hot water pipe 3 The cool / warm air from the air is conducted to the lower surface plate 21 of the panel board 6 in contact with the heat transfer piece 9 through the heat transfer piece 9 to cool or warm the air in the gap 25, and It is formed so as to efficiently conduct to the upper surface plate 20 and to cool or warm the air in the lower space 8.
[0013]
As shown in FIG. 1, the heat transfer plate 4, the cover plate 5 and the panel board 6 are obtained by joining the edge portions of the panel boards 6 to both sides of the cover plates 5. The board 6 and the heat transfer plate 4 are integrally fixed to the holding plate 15 of the support leg 2, and a space 8 for ventilation and wiring is provided on the slab 1 to form a floor panel P having a required width.
[0014]
The method of fixing the heat transfer plate 4, the cover plate 5 and the panel board 6 to the support plate 15 of the support leg 2 is not particularly limited, but preferably is fixed as shown in FIGS. Is recommended.
[0015]
That is, as shown in FIGS. 2 and 4, quarter flange-shaped stepped portions 27 and 28 are provided on the flanges 19 and 22 at the four corners of the cover plate 5 and the panel board 6, respectively. In addition, the corner portions of the stepped portions 27 and 28 are notched in a quarter circle shape, and notched portions 29 and 30 are provided, respectively. Then, each support leg 2 is placed on the slab 1 over a plurality of rows at equal intervals so that the center of each joint part of the cover plate 5 is positioned on the center part of the holding plate 15 of each support leg 2. And two heat transfer plates 4 each holding the cold / hot water pipes 3 on the holding plates 15 of the respective support legs 2 are supported symmetrically in a plurality of rows.
[0016]
Further, a plurality of cover plates 5 are joined and placed over the entire length of the heat transfer plate 4, and the heat insulating material 26 on the heat transfer pieces 9 of the heat transfer plates 4 in adjacent rows. The flat surface portions 21a located on both sides of the lower surface plate 21 of the panel board 6 are placed on the end surface portions that do not cover the panel board 6, and the projections at the respective corner portions of the cover plate 5 and the panel board 6 are provided. The shape of the dropping step portions 27 and 28 of the mating portion forms a circular recess 31 as a whole, and the shape of each of the notches 29 and 30 forms a circular hole 32 as a whole, The circular hole 32 is used as a guide hole for the tightening bolt 7.
[0017]
The circular recess 31 is provided with a recess 33 in which the head of the tightening bolt 7 is inserted at the center, and the circular recess 31 is inserted through the insertion hole 34 of the tightening bolt 7 in the center of the recess 33. A circular seat plate 35 having the same thickness as the depth of the recess 31 is fitted, the fastening bolt 7 is inserted into the insertion hole 34 of the seat plate 35, and the tip thereof is the heat transfer piece of the heat transfer plate 4. The cover plate 5, the heat transfer plate 4, and the panel board 6 are integrally fixed to the holding plate 15 of the support leg 2 by being screwed into the screw insertion holes 36 respectively penetrating the 9 and the holding plate 15.
[0018]
The cover plate 5 and the panel board 6 are arranged in a plurality of rows on the holding plate 15 of the support leg 2 installed on the slab 1 in a plurality of rows. At the same time, by joining and fixing a plurality of sheets on the holding plate 15, the floor panel P having the space 8 between the slab 1 is installed. A floor material 37 such as a floor carpet is laid on the floor panel P.
[0019]
The space 8 on the lower surface of the floor panel P serves as an air supply passage for air cooled or heated by an air conditioner 51 and a heat source device 54, which will be described later, and a wiring passage for a power supply or wiring cord C for office equipment. If necessary, the floor 36 is removed and the fastening bolts 7 are removed, so that the panel board 6 at a predetermined location can be opened to check or repair the cold / hot water pipe 3 or the cord C. .
[0020]
FIG. 5 is a cross-sectional view showing another embodiment of the panel board 6, and what is shown in FIG. 3 is not filled in the gap 25 at all, but what is shown in FIG. It is filled with a filler 38 such as concrete. Of course, the use of the panel board 6 filled with the filler 38 shown in FIG. 4 is smaller than the panel board 6 shown in FIG.
[0021]
FIG. 8 is a schematic perspective view showing an example of a cooling / heating apparatus using the floor panel device of the present invention. At the end of the room R where the floor panel P is installed, cold / hot air is introduced into the room R from the space 8. A blowout port 50 for supplying air is opened, and a return air port 52 for sucking air in the room R to the air conditioner 51 is provided above the wall surface W, and the air conditioner 51 is generated here. The cooled / warm air is connected to a manifold 53 for sending air to the space 8 of the floor panel P. The cold / hot water pipe 3 attached to the floor panel P is connected to a heat source device 54 installed outside the room.
[0022]
FIG. 9 is a piping system diagram of an example of a cooling / heating apparatus using the floor panel device of the present invention, in which HS is a hot water supply pipe, HR is a hot water recovery pipe, CS is a cold water supply pipe, and CR is a cold water recovery pipe. These are all connected to the heat source device 54.
[0023]
The hot water supply pipe HS whose base end (supply side) is connected to the heat source device 54 is branched into the hot water supply branch pipes HS1 and HS2 at the tip thereof, and one of the hot water supply branch pipes HS1 is heated by the air conditioner 51. The other hot water supply branch pipe HS2 connected to the coil HC is connected to the inlet of the cold / hot water pipe 3 of the floor panel P through the merge supply pipe JP1.
[0024]
The chilled water supply pipe CS whose base end (supply side) is connected to the heat source device 54 branches into the chilled water supply branch pipes CS1 and CS2 at the front part, and one of the chilled water supply branch pipes CS1 cools the air conditioner 51. The other cold water supply branch pipe CS2 connected to the coil CC is connected to the inlet of the cold / hot water pipe 3 of the floor panel P through the merge supply pipe JP1.
[0025]
The hot water recovery pipe HR whose base end (recovery side) is connected to the heat source device 54 is connected to the hot water recovery branch pipe HR1 connected to the heating coil HC of the air conditioner 51 at its front end, and the floor panel P. A cold water recovery technical pipe CR2 branched from a merging recovery pipe JP2 connected to the outlet of the cold / hot water pipe 3 is connected.
[0026]
The cold water recovery pipe CR whose base end (recovery side) is connected to the heat source device 54 is connected to the cold water recovery branch pipe CR1 connected to the cooling coil CC of the air conditioner 51 at its front end and the floor panel P. A cold water recovery technical pipe CR2 branched from a merging recovery pipe JP2 connected to the outlet of the cold / hot water pipe 3 is connected.
[0027]
The cold water supply branch CS1 and the cold water recovery branch CR1 are connected by a first bypass BY1 via a first three-way valve V1 before the air conditioner 51, and the hot water supply branch HS1. The warm water recovery branch pipe HR1 is connected by a second bypass BY2 via a second three-way valve V2 before the air conditioner 51.
[0028]
Further, the junction supply pipe JP1 and the junction recovery pipe JP2 are connected by a third bypass BY3 via a third three-way valve V3 in front of the cold / hot water pipe 3.
[0029]
In the figure, 55 is a hot water pump provided in the hot water recovery pipe HR, and 56 is a cold water pump provided in the cold water recovery pipe CR.
[0030]
Further, in the figure, 57 is a cooling tower, and a first cooling water supply pipe FS1 for supplying cooling water from the heat source equipment 54 is connected to an intermediate portion of the cold water supply pipe CS connected to the heat source equipment 54. In addition, a cooling water recovery pipe FR that recovers cooling water from the heat source device 54 to the cooling tower 57 is connected to an intermediate portion of the cooling water supply pipe FS1. The cooling tower 57 is connected to the base end portion of the second cooling water supply pipe FS2, and the tip end portion of the second cooling water supply pipe FS2 is connected to the cooling water recovery pipe CR. In addition, an intermediate part of the second cooling water supply pipe FS2 is connected to the heat source device 54 via a circulation pipe RP. In the figure, 58 is a cooling water pump provided in the second cooling water supply pipe FS2.
[0031]
Next, an operation of an example of an air conditioning apparatus using the floor panel device of the present invention will be described. When heating the room R, first, the warm water generated by the heat source device 54 is sent from the warm water supply pipe HS to the heating coil HC of the air conditioner 51 through the warm water supply branch pipe HS1, and the air conditioner 51 The generated hot air is sent to the space portion 8 of the floor panel P through the manifold 53, and the lower surface plate 21 of each panel board 6 disposed on the space portion 8 is heated to heat the upper surface plate 20. The panel board 6 constituting the floor panel P is heated by sending warm air upward from the small holes 24 formed above the hemispherical recesses 22 and heated. Heated warm air is conducted to the floor material 37 laid on the panel board 6 to warm the room R, and air is sent to the room R from the air outlet 50 provided on the floor panel P to warm the room R. Then, the air after warming the room R is refluxed and heated to the air conditioner 51 through the return air port 52 provided in the wall surface W, and is again supplied to the floor panel P through the manifold 53. The hot water that is no longer necessary from the heating coil HC of the air conditioner 51 is recovered from the hot water recovery pipe HR to the heat source device 54 via the hot water recovery branch pipe HR1, heated again, and from the hot water supply pipe HS to the air conditioner 51. The water is sent to the cold / hot water pipe 3 of the floor panel P and is circulated and used to heat the room R.
[0032]
Further, the hot water generated by the heat source device 54 flows into the cold / hot water pipe 3 from the hot water supply pipe HS through the hot water supply branch pipe HS2, and flows in the cold / hot water pipe 3 that is bent and disposed on the floor panel 3. As a result, the cold / hot water pipe 3 is heated to conduct heat to the heat transfer plate 4 and the panel board 6 to warm the entire floor, radiate warm air uniformly into the room R, and heat the panel board 6. Can be conducted to the warm air flowing in the lower space 8 and further heated. Then, the hot water after use is recovered from the hot water recovery pipe HR to the heat source device 54 via the merging recovery pipe JP2 and the hot water recovery branch pipe HR2 from the outlet side of the cold / hot water pipe 3, heated again, and from the hot water recovery pipe HS. Water is again sent to the air conditioner 51 and the cold / hot water pipe 3 of the floor panel P, and is circulated and used to heat the room R. In addition, when the space | gap part 25 of each said panel board 6 is filled with the filler 38 which has a cool storage and a heat storage effect | action, this filler 38 will be heated and it heat-stores, and it is heat dissipation from this panel board 6 Can continue and reduce power consumption.
[0033]
When the temperature of the room R reaches a set value or higher, a thermostat (not shown) detects this, and the first three-way valve V1 and the third three-way valve V3 receive the thermostat control signals, and the air conditioner 51 and the floor The hot water supply to the cold / hot water pipe 3 of the panel P is stopped or the flow rate is controlled to prevent the room temperature from rising.
[0034]
Conversely, when the room R is cooled, first, the cold water generated by the heat source device 54 is sent from the cold water supply pipe CS to the cooling coil CC of the air conditioner 51 via the cold water supply branch pipe CS1. The cool air generated by the machine 51 is sent to the space portion 8 of the floor panel P through the manifold 53, and the lower surface plate 21 of each panel board 6 disposed on the space portion 8 is cooled to be the upper surface plate. 20, and cool air is sent upward from each small hole 24 formed above each hemispherical recess 23 to cool the heat transfer plate 4 and the panel board 6 constituting the floor panel P. Then, the cooled cold air is conducted to the floor material 37 laid on the panel board 6 to cool the room R, and is sent to the room R from the outlet 50 provided in the floor panel P. The room R is cooled. And the air after cooling the room R is returned to the air conditioner 51 through the return air port 52 provided in the wall surface W and cooled, and is again sent to the floor panel P through the manifold 53, The chilled water that is no longer necessary from the cooling coil CC of the air conditioner 51 passes through the chilled water recovery branch CR1 and is recovered from the chilled water recovery pipe CR to the heat source device 54, cooled again, and is supplied from the chilled water supply pipe CS to the air conditioner 51 and Water is sent to the cold / hot water pipe 3 of the floor panel P and is circulated and used to cool the room R.
[0035]
Further, the cold water generated by the heat source device 54 flows into the cold / hot water pipe 3 from the cold water supply pipe CS through the cold water supply branch pipe CS 2, and flows in the cold / hot water pipe 3 that is bent and disposed on the floor panel 3. As a result, the cold / hot water pipe 3 is cooled, cool air is conducted to the heat transfer plate 4 and the panel board 6 to cool the entire floor, and the cool air is radiated uniformly into the room R to cool it. Can be conducted to the cold air flowing in the lower space 8 and further cooled. Then, the cold water after use is recovered from the cold water recovery pipe CR to the heat source device 54 via the merge recovery pipe JP2 and the cold water recovery branch pipe CR2 from the outlet side of the cold / hot water pipe 3, cooled again, and from the cold water recovery pipe CS. Water is again sent to the air conditioner 51 and the cold / hot water pipe 3 of the floor panel P, and is circulated and used to cool the room R. In addition, when the space | gap part 25 of each said panel board 6 is filled with the filler 38 which has a cool storage and a heat storage effect | action, when this filler 38 is cooled and it cools, it will cool from this panel board 6 Can continue and reduce power consumption.
[0036]
When the temperature of the room R reaches or exceeds a set value, a thermostat (not shown) detects the temperature, and the second three-way valve V2 and the third three-way valve V3 receive the thermostat control signal, and the air conditioner The stop or flow rate of the cold water supply to the cold / hot water pipe 3 of 51 and the floor panel P is controlled, and the fall of room temperature is prevented.
[0037]
When the cooling load in the middle of spring or autumn is low, the cooling water from the cooling tower 57 is circulated to the cooling water coil CC of the air conditioner 51, and the cooling water coil CC is cooled only by the cooling water of the cooling tower 57. Thus, useless use of the heat source device 54 can be eliminated. In addition, the cooling water generated by the heat source device 54 is sent from the cooling water recovery pipe FR to the cooling tower 57 through the first cooling water supply pipe FS1 to be cooled, and the cooling water cooled by the cooling tower is supplied to the first cooling water. The cooling water is supplied to the heat source device 54 through the cooling water supply pipe FS2 and the circulation pipe RP and circulated to maintain the temperature of the cooling water at a predetermined temperature. Further, after cooling the cold water coil CC with cold water, when the temperature of the heated cold water flowing through the cold water recovery pipe CR is high, the cooling water is poured into the cold water recovery pipe CR via the second cooling water supply pipe FS2. Thus, the temperature of the raised cold water can be lowered.
[0038]
【The invention's effect】
Since the present invention is as described above, the panel board at an arbitrary place can be freely removed, so that inspection and replacement of the cold / hot water pipe can be easily performed, and power cords for office equipment and wiring are provided in the space. It can be arranged. In addition, the panel board is cooled or heated, and cold / warm water is radiated uniformly from the panel board to the room by the cold / hot water flowing through the cold / hot water pipe that is bent and fixed to the heat transfer plate from the panel board. At the same time, the cold / hot water circulates back to the heat source equipment, and when the cool air or warm air from the air conditioner passes through the space, it touches the lower surface of the panel board to further cool the cool air or warm air. Or, by heating and cooling and releasing the cold / warm air from the outlet on the floor to the room and returning to the air conditioner from the return air, it is circulated to the floor. Combining the radiation and convection devices of the blowout air conditioner provides an air conditioning effect with extremely soft and natural comfort.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part of a floor panel device in a floor radiation and air conditioning air conditioner according to the present invention.
FIG. 2 is a perspective view of a panel board used for a floor panel device in the floor radiation and air conditioning air conditioner of the present invention.
FIG. 3 is a longitudinal sectional view of a part of the panel board.
FIG. 4 is a perspective view of a cover plate used in the floor panel device in the floor radiation and air conditioning air conditioner of the present invention.
FIG. 5 is a longitudinal sectional view of a part of a panel board showing another embodiment.
FIG. 6 is a perspective view showing an installation state of a panel board and a cover plate in the floor panel device in the floor radiation and air conditioning air conditioner according to the present invention.
FIG. 7 is a plan view showing the floor panel device in the floor radiation and air conditioning air conditioner of the present invention with a part cut away.
FIG. 8 is a schematic perspective view showing a usage state of the floor panel device in the floor radiation and air conditioning air conditioner according to the present invention.
FIG. 9 is a piping system diagram of a floor panel device in the floor radiation and air conditioning air conditioner according to the present invention.
[Explanation of symbols]
P floor panel, C cord, 1 slab, 2 support legs, 3 cold / hot water pipe, 4 heat transfer plate, 5 cover plate, 6 panel board, 8 space part, 51 air conditioner, 54 heat source equipment.

Claims (1)

A cold / hot water pipe for passing cold / hot water generated by a heat source device across the rows on a support leg erected across a plurality of rows with a predetermined interval on the slab. A long heat transfer plate that is bent and held continuously is fixed, and a plurality of short cover plates having a reverse concave shape in cross section are joined and covered on the heat transfer plate, and On both sides of each cover plate, a plurality of panel boards having the same length as the cover plate having a cooling / dissipating action are joined and connected, and the heat transfer plate, the cover plate and the panel board are connected to the upper surface of the support leg. A floor panel is formed by tightening and fixing with a fastening bolt to the slab, and further serves as a ventilation space for cold / hot air conditioned air generated by an air conditioner and a space for arranging a cord between the slab and the floor panel. In floor radiation and air-conditioning air conditioning equipment, Panel device.

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