Mounting frame for outdoor unit and method for installing the outdoor unit

Abstract

To provide a frame for an outdoor unit, a method for installing an outdoor unit and the like that is useful for suppressing deterioration in air conditioning capacity of an air conditioner.SOLUTION: A frame 1 for an outdoor unit of an air conditioner includes a frame body 10 and a shield plate 20. The frame body 10 includes: an upper frame 11 including lateral frame materials 11a, 11b disposed in a rectangular shape and placing an outdoor unit 100 thereon; and at least four leg members 12 extending downward from each corner of the upper frame 11. The shield plate 20 can fix the frame body 10 so as to cover at least one of the four side face areas A to D that are defined by a pair of adjacent leg members 12 and the lateral frame material 11a or 11b connecting the leg members.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a pedestal for an outdoor unit and a method for installing an outdoor unit, etc.

Background Art

[0002] Generally, the outdoor unit of an air conditioner used in a house, building, apartment house, etc. is installed outdoors. Also, in snowy areas, in order to prevent the outdoor unit from being buried in snow, a pedestal is installed on the ground, and the outdoor unit is fixed on the pedestal (see Patent Document 1 below).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As shown in FIG. 5, the pedestal a for an outdoor unit includes, for example, an upper frame c on which the outdoor unit b is placed, and at least four leg members d extending downward from each corner portion of the upper frame c. Also, in the pedestal a, the lower part of the upper frame c is a space communicating with the outside.

[0005] In such a pedestal a, for example, when the air conditioner is in heating operation, the heat-exchanged cold air discharged from the air outlet e of the outdoor unit b passes through the space below the upper frame c of the pedestal a and is sucked into the air inlet f of the outdoor unit b, so that a so-called shortcut may occur. Due to such a shortcut, the outdoor unit b sucks in air at a temperature lower than the outside air, resulting in a decrease in heat exchange efficiency and, consequently, a decrease in air conditioning capacity.

[0006] Furthermore, as shown in Figure 6, a snow protection hood g may be attached to the outdoor unit b. In this case, the snow protection hood g causes the exhaust from the outdoor unit b to be blown downwards, which presents a problem as the aforementioned shortcut is particularly likely to occur.

[0007] This invention was devised in view of the above-mentioned problems, and its main purpose is to provide a stand for an outdoor unit and a method for installing an outdoor unit that helps suppress the decrease in the air conditioning capacity of an air conditioner. [Means for solving the problem]

[0008] The present invention relates to a stand for an outdoor unit of an air conditioner, comprising a stand body and a shielding plate, wherein the stand body comprises an upper frame for supporting the outdoor unit, on which horizontal frame members are arranged in a rectangular shape, and at least four leg members extending downward from each corner of the upper frame, and the shielding plate is fixable to the stand body so as to cover at least one of the four side regions defined by an adjacent pair of the leg members and the horizontal frame members connecting them. [Effects of the Invention]

[0009] The outdoor unit stand of the present invention comprises a stand body and a shielding plate. The shielding plate can be fixed to the stand body so as to cover at least one of the four side regions of the stand body. Such a shielding plate suppresses a shortcut that would cause the cold air exhausted from the air outlet of the outdoor unit during heating operation to be drawn into the air intake of the outdoor unit through the space below the upper frame of the stand. Therefore, the outdoor unit stand of the present invention can suppress a decrease in the air conditioning capacity of the air conditioner. [Brief explanation of the drawing]

[0010] [Figure 1] This is an overall perspective view showing the outdoor unit mounted on the stand for the outdoor unit according to this embodiment. [Figure 2] Figure 1 is an exploded perspective view. [Figure 3]This is a plan view of the frame body with the shielding plate removed from Figure 1. [Figure 4] This is a plan view of Figure 1. [Figure 5] This is a perspective view of a conventional outdoor unit mounting bracket. [Figure 6] This is a perspective view of the outdoor unit with a snow protection hood attached. [Modes for carrying out the invention]

[0011] One embodiment of the present invention will be described below. The specific configurations described in the embodiments are for the purpose of understanding the content of the present invention, and the present invention is not to be construed as being limited to these specific embodiments.

[0012] Figure 1 shows an overall perspective view of the outdoor unit 100 attached to the outdoor unit mounting frame 1 (hereinafter sometimes simply referred to as "frame") of this embodiment. Figure 2 is an exploded perspective view of Figure 1.

[0013] [Outdoor unit] The outdoor unit 100 has a conventional rectangular prism housing structure. The outdoor unit 100 has four sides and is rectangular in shape (horizontally elongated rectangle) in plan view, and an air outlet 101 is provided on one of the four sides. Furthermore, the outdoor unit 100 is equipped with a pair of mounting brackets 105 (see Figure 2) on its lower side.

[0014] The outdoor unit 100 has at least one air intake port. In this embodiment, the outdoor unit 100 has a first air intake port 102 on the side adjacent to the air outlet port 101. Furthermore, in this embodiment, the outdoor unit 100 has a second air intake port 103 on the side opposite to the air outlet port 101. During heating operation, the outdoor unit 100 absorbs heat from the outside air drawn in through the first air intake port 102 and the second air intake port 103 using a heat exchanger (not shown), and then discharges air at a lower temperature through the air outlet port 101.

[0015] [Outdoor unit mounting bracket] As shown in FIGS. 1 and 2, the pedestal 1 of the present embodiment is used to place the outdoor unit 100 of the air conditioner at a position higher than the ground in order to prevent the outdoor unit 100 from being buried in snow. The pedestal 1 of the present embodiment includes, for example, a pedestal body 10 and a shielding plate 20.

[0016] [Pedestal body] In FIG. 1, in order to assist in understanding the structure of the pedestal 1, a rectangular coordinate system (x - y - z) is shown. This coordinate system defines the direction of the pedestal 1 (or the pedestal body 10). In the present embodiment, the vertical direction of the pedestal 1 is the z - axis direction, the left - right direction of the pedestal 1 is the x - axis direction, and the front - rear direction of the pedestal 1 is the y - axis direction.

[0017] As shown in FIGS. 1 and 2, the pedestal body 10 includes an upper frame 11 for mounting the outdoor unit 100 and at least four leg members 12 extending downward from the upper frame 11.

[0018] [Upper frame] The upper frame 11 of the present embodiment is configured such that four horizontal frame members are arranged in a rectangular shape and fixed integrally. As a result, the upper frame 11 has a rectangular shape with four corner portions in plan view.

[0019] The upper frame 11 includes, for example, a pair of first horizontal frame members 11a extending in the left - right direction of the pedestal 1 and a pair of second horizontal frame members 11b extending in the front - rear direction. These frame members 11a, 11b are made of, for example, a metal material.

[0020] The first horizontal frame member 11a is, for example, longer than the second horizontal frame member 11b. As a result, the upper frame 11 of the present embodiment has a rectangular shape that is longer in the left - right direction in plan view. The length of the first horizontal frame member 11a is preferably larger than the left - right dimension of the outdoor unit 100 intended to be mounted, for example, 700 mm or more, and more preferably 800 mm or more. Similarly, the length of the second horizontal frame member 11b is preferably larger than the front - rear dimension of the outdoor unit 100 intended to be mounted, for example, 300 mm or more, and more preferably 400 mm or more.

[0021] The upper frame 11 of this embodiment is provided with a pair of mounting parts 13 for attaching the outdoor unit 100. Each of the pair of mounting parts 13 includes, for example, a third horizontal frame member 14 extending in the front-rear direction and a pair of fasteners 15 provided on the third horizontal frame member 14.

[0022] Both ends of the third horizontal frame member 14 are bolted to, for example, elongated holes formed in the first horizontal frame member 11a. Therefore, the third horizontal frame member 14 is fixed to the first horizontal frame member 11a so as to be adjustable in the left-right direction. The fastener 15 also includes, for example, a screw fastener consisting of a bolt and a nut. The fastener 15 is also fixed to the elongated holes formed in the third horizontal frame member 14. Therefore, the fastener 15 of this embodiment can be adjusted in the front-rear and left-right directions relative to the upper frame 11 of the mounting base 1. Such a mounting portion 13 is useful for mounting various outdoor units 100 with different pitch dimensions of the pair of mounting brackets 105 for the outdoor unit 100. The outdoor unit 100 and the upper frame 11 are fixed with their longitudinal directions aligned, as shown in Figure 1.

[0023] [Legs] In this embodiment, the leg members 12 are, for example, vertical frame members made of metal that extend vertically. Each leg member 12 extends downward from each corner of the upper frame 11 and makes contact with the ground. If necessary, reinforcing members 16 or the like may be provided to connect a pair of leg members 12. The length of the leg members 12 is not particularly limited, but if they are too short, there is a risk that the outdoor unit 100 will be buried in snow, so it is desirable that they be, for example, 400 mm or more, and even 500 mm or more. In addition, each leg member 12 is provided with, for example, a plurality of holes 12a in the vertical direction. These holes 12a can be used, for example, to attach a shielding plate 20.

[0024] [Side area of ​​the mounting frame] Figure 3 shows a plan view of the frame body 10 with the shielding plate 20 removed from Figure 1. As shown in Figure 3, the frame body 10 comprises four side regions A, B, C, and D. Each side region A through D is a virtual side that includes an opening defined by a pair of adjacent leg members 12, 12 and a single horizontal frame member 11a or 11b connecting them.

[0025] In this embodiment, side region A corresponds to the side of the outdoor unit 100 on which the air outlet 101 of the outdoor unit 100 is formed, in relation to the outdoor unit 100 which is fixed (or will be fixed) to the mounting frame body 10. Here, "corresponds" means that, in the plan view of Figure 3, one of the four side regions A to D of the mounting frame body 10 and one of the four sides of the outdoor unit 100 fixed to the mounting frame body 10 are arranged parallel to each other (substantially parallel is sufficient) and are arranged closest to each other. Furthermore, side region B corresponds to the side of the outdoor unit 100 on which the first air intake port 102 of the outdoor unit 100 is provided, side region C corresponds to the side of the outdoor unit 100 on which the second air intake port 103 of the outdoor unit 100 is provided, and side region D corresponds to the remaining side of the outdoor unit 100.

[0026] [Shielding plate] Figure 4 is a plan view of the assembly of the frame 1 and the outdoor unit 100 shown in Figure 1. As shown in Figure 1 or Figure 4, the shielding plate 20 is fixed to the frame body 10 so as to cover at least one of the four side regions A to D of the frame body 10. In this embodiment, the shielding plate 20 preferably includes a first shielding plate 20A and a second shielding plate 20B that can cover different side regions from each other. However, the shielding plate 20 may consist of only either the first shielding plate 20A or the second shielding plate 20B.

[0027] In this embodiment, the first shielding plate 20A can be fixed to the frame body 10, for example, so as to cover the side area B of the frame body 10. As shown in Figure 2, the first shielding plate 20A can be fixed, for example, to the hole 12a of the leg member 12 using a screw 30. Therefore, the first shielding plate 20A in this embodiment can cover the side area B of the frame body 10 corresponding to the side where the first air intake port 102 of the outdoor unit 100 is provided.

[0028] As shown in Figure 1, the first shielding plate 20A of this embodiment covers substantially the entire front-to-back and up-to-down range of the side region B. However, the first shielding plate 20A does not have to cover the entire side region B. For example, the first shielding plate 20A does not have to cover the lower area of ​​the side region B that is expected to be covered with snow when snow accumulates (for example, an area of ​​about 150 mm from the ground). In such a case, for example, it becomes easier to secure a path for drainage water that melts during defrosting operation to flow from the bottom plate of the outdoor unit 100. From the above viewpoint, it is desirable that the first shielding plate 20A covers, for example, about 70% or more of the planar area of ​​the side region B.

[0029] In this embodiment, the second shielding plate 20B can be fixed to the frame body 10, for example, so as to cover the side region C of the frame body 10. The second shielding plate 20B can also be fixed, for example, to the hole 12a of the leg member 12 using a screw 30, as shown in Figure 2. Therefore, the second shielding plate 20B can cover the side region C of the frame body 10 corresponding to the side where the second air intake port 103 of the outdoor unit 100 is provided.

[0030] As can be seen from Figures 1 and 2, the second shielding plate 20B of this embodiment covers substantially the entire area of ​​the side region C in both the left-right and up-down directions. However, the second shielding plate 20B does not have to cover the entire side region C. For example, the second shielding plate 20B does not have to cover the lower area of ​​the side region C that is expected to be covered with snow when snow accumulates (for example, an area of ​​about 150 mm from the ground). In such a case, as described above, it becomes easier to secure a path for the drainage water that melts during defrosting operation to flow from the bottom plate of the outdoor unit 100. From the above viewpoint, it is desirable that the second shielding plate 20B also covers, for example, about 70% or more of the planar area of ​​the side region C.

[0031] The shielding plate 20 may include a third shielding plate (not shown) that covers the side area A of the frame body 10, either in place of or together with the first shielding plate 20A and the second shielding plate 20B.

[0032] Furthermore, the shielding plate 20 may include a fourth shielding plate (not shown) that covers the side region D of the frame body 10, in place of, or together with, the first shielding plate 20A, the second shielding plate 20B, and the third shielding plate. In other words, the shielding plate 20 may be configured to cover all side regions A to D of the frame body 10.

[0033] [Operation of the stand of this embodiment] The shielding plate 20 is fixed to the frame body 10 so as to cover at least one of the four side regions A to D of the frame body. In a preferred embodiment, the frame 1 is used so that the side region on which the shielding plate 20 is located corresponds to either the side of the outdoor unit 100 that has an air intake port (first air intake port 102 or second air intake port 103) or an air exhaust port 101.

[0034] According to the frame 1 of this embodiment, the shielding plate 20 prevents the cold air exhausted from the air outlet 101 of the outdoor unit 100 during heating operation from being directly drawn into the first air intake 102 or second air intake 103 of the outdoor unit 100 via the space below the upper frame 11. Therefore, the frame 1 of this embodiment can suppress a decrease in the air conditioning capacity of the air conditioner.

[0035] [Differentiation] The shielding plate 20 is preferably made of a metal material that has been treated with rust-preventive paint or other rust-preventive coatings. Such a shielding plate 20 can withstand wind and snow and exhibit excellent durability over a long period of time.

[0036] As shown in Figures 1 and 4, the shielding plate 20 may include, for example, a main body portion 201 that covers the side area of ​​the frame body 10, and a return portion 202 that extends from the upper end of the main body portion 201 to partially cover the upper side of the frame body 10 (the upper surface of the upper frame 11).

[0037] The return portion 202 can, for example, cover the upper opening between the outdoor unit 100 and the first horizontal frame member 11a or the second horizontal frame member 11b of the upper frame 11. Such a shielding plate 20 can effectively suppress a shortcut in which the cold air discharged from the outdoor unit 100 is drawn into the first air intake port 102 or the second air intake port 103 through the lower space of the upper frame 11 and the aforementioned upper opening.

[0038] In this embodiment, the first shielding plate 20A and the second shielding plate 20B each include a main body portion 201 and a return portion 202. As is clear from Figure 4, in this embodiment, the side edges of the return portion 202 of the first shielding plate 20A and the side edges of the return portion 202 of the second shielding plate 20B are aligned at an angle to the extent that they are in contact with or close to each other. This more effectively prevents the cold air from taking a shortcut through the upper opening described above.

[0039] The return portion 202 of the shielding plate 20 preferably has a slope that descends toward the main body portion 201. This effectively prevents rainwater and snow from accumulating on the return portion 202. In addition, the defrosting operation of the outdoor unit 100 effectively prevents the melted water from the intake portion from freezing and accumulating.

[0040] [Outdoor unit installation method] Next, a method for installing an outdoor unit 100 using the outdoor unit stand 1 of this embodiment will be described. The method for installing the outdoor unit 100 of this embodiment includes a first step of installing the stand body 10 outdoors, a second step of fixing the outdoor unit 100 to the upper frame 11 of the stand body 10, and a third step of fixing a shielding plate 20 to at least one of the side regions A to D of the stand body 10.

[0041] In a preferred embodiment, the first, second, and third steps are performed in that order. However, in other embodiments, the third step may be performed before the first or second step.

[0042] In a preferred embodiment of the second step, as shown in Figures 1 and 3, the outdoor unit 100 is fixed to the mounting frame 10 such that its four sides correspond to the four side regions A to D of the mounting frame 10, respectively.

[0043] In a preferred embodiment of the third step, the shielding plate 20 is fixed so as to cover side area B or C corresponding to the side on which the air intake port (first air intake port 102 or second air intake port 103) of the outdoor unit 100 is provided. In another preferred embodiment of the third step, the shielding plate 20 is fixed so as to cover side area A corresponding to the side on which the air exhaust port 101 of the outdoor unit 100 is provided. In yet another embodiment of the third step, the shielding plate 20 may be fixed so as to cover all side areas A to D of the frame body 10.

[0044] The installation method for the outdoor unit 100 in this embodiment may further include a fourth step of installing a snow protection hood (shown in Figure 6) on the outdoor unit 100 as a preliminary step. The fourth step may be performed in any order. The snow protection hood is placed over the outdoor unit 100 from the top and can effectively prevent the air outlet 101, first air intake 102, and second air intake 103 of the outdoor unit 100 from being covered with snow.

[0045] Although embodiments of the present invention have been described in detail above, the present invention is not limited to the specific embodiments described above and can be implemented in various modified forms. Furthermore, it goes without saying that the present invention includes its equivalents. [Examples]

[0046] <Rating 1> The air conditioning capacity of an air conditioner using the mounting frame of this embodiment for the outdoor unit was evaluated. As an example, a mounting frame with shielding plates attached to the side areas B and C of the mounting frame body was used, as shown in Figure 4. On the other hand, as a comparative example, a mounting frame without shielding plates attached to the side areas was used. The two mounting frames differ only in the presence or absence of shielding plates; all other configurations are the same.

[0047] Evaluation 1 was conducted in an environmental testing laboratory, with identical indoor units of air conditioners installed in two rooms of a house. One indoor unit was connected to an outdoor unit mounted on the stand of the example, and the other indoor unit was connected to an outdoor unit mounted on the stand of the comparative example. Both outdoor units were fitted with snow protection hoods.

[0048] The evaluation was conducted under weather conditions in a snowy region (low temperature and high humidity). With the windows of the living room open (10-12°C), the air conditioner was operated continuously at maximum capacity for heating, and the air conditioning capacity was measured after 4 hours, 8 hours, and 12 hours. The results are expressed as an index with the initial air conditioning capacity set to 100, where a higher number indicates better performance. The evaluation results are as follows:

[0049] [Table 1]

[0050] In the example, the air conditioning capacity after 12 hours was reduced to 94% of the initial level. In contrast, in the comparative example, the air conditioning capacity after 12 hours had decreased to 79% of the initial level.

[0051] <Rating 2> Next, the system operating efficiency of the air conditioner was investigated. The example and comparative example were the same as described above. The set temperature of the air conditioner was 20°C, and the outside air conditions were the average outside temperature in January for energy-saving zone classification 4. In the example, the system operating efficiency COP was 3.1 and the daily cumulative power consumption was 35.3 kWh, while the comparative example had a COP of 3.0 and a daily cumulative power consumption of 36.9 kWh.

[0052] Based on the results of evaluations 1 and 2, it was confirmed that the mounting frame of the example suppresses the decrease in the air conditioning capacity of the air conditioner and helps reduce power consumption compared to the comparative example.

[0053] [Note] The present invention includes the following embodiments.

[0054] [Invention 1] A mounting bracket for the outdoor unit of an air conditioner, Including the frame body and the shielding plate, The aforementioned mounting frame body is The upper frame for mounting the outdoor unit has horizontal frame members arranged in a rectangular shape, It includes at least four leg members extending downward from each corner of the upper frame, The shielding plate is fixable to the frame body such that it covers at least one of the four side regions defined by the adjacent pair of leg members and the horizontal frame member connecting them. A mounting bracket for the outdoor unit. [Invention 2] The mounting frame for an outdoor unit according to the present invention 1, wherein the shielding plate includes a first shielding plate and a second shielding plate, each covering a different side region. [Invention 3] The shielding plate includes a main body portion that covers the side region and a return portion that extends from the upper end of the main body portion to partially cover the upper side of the stand body, as described in invention 1 or 2. [4th Invention] The stand for an outdoor unit according to the present invention, wherein the return portion has a slope that descends toward the main body portion. [5th ​​Invention] The shielding plate can be fixed to the main body of the stand using screws, as described in any one of claims 1 to 4 of the present invention. [Invention 6] A shielding plate used for the frame body on which the outdoor unit of an air conditioner is mounted, The frame body includes an upper frame for supporting the outdoor unit, in which horizontal frame members are arranged in a rectangular shape, and at least four leg members extending downward from each corner of the upper frame. The shielding plate is fixable to the frame body such that it covers at least one of the four side regions defined by the adjacent pair of leg members and the horizontal frame member connecting them. Shielding board. [7th Invention] The shielding plate according to claim 6 of the present invention, wherein the shielding plate includes a first shielding plate and a second shielding plate, each covering a different side region. [8th Invention] The shielding plate according to claim 6 or 7 of the present invention, wherein the shielding plate can be fixed to the frame body using screws. [Invention 9] The shielding plate according to any one of claims 6 to 8 of the present invention, wherein the shielding plate includes a main body portion that covers the side region and a return portion that extends from the upper end of the main body portion to partially cover the upper side of the frame body. [Invention 10] The shielding plate according to the present invention, wherein the return portion has a slope that descends toward the main body portion. [Invention 11] A method for installing an outdoor unit using the outdoor unit stand described in Invention 1, The first step is to install the frame body outdoors, The second step involves fixing the outdoor unit to the upper frame of the mounting frame body, The third step includes fixing the shielding plate to at least one of the side regions of the frame body, How to install the outdoor unit. [Invention 12] The outdoor unit has a rectangular shape in plan view with four sides, and an air intake port is provided on at least one of the sides. In the second step, the outdoor unit is fixed to the frame body such that the side surface on which the air intake is provided corresponds to one side area of ​​the frame body. In the third step, the shielding plate is fixed to the frame body so as to cover one of the side areas, as described in invention 11, for the installation method of an outdoor unit. [Invention 13] The outdoor unit has a rectangular shape in plan view with four sides, and an air outlet is provided on at least one of the sides. In the second step, the outdoor unit is fixed to the frame body such that the side surface on which the air outlet is provided corresponds to one side area of ​​the frame body. In the third step, the shielding plate is fixed to the frame body so as to cover one of the side areas, as described in invention 11, for the installation method of an outdoor unit. [Invention 14] The method for installing an outdoor unit according to any one of claims 11 to 13 of the present invention, further comprising a fourth step of installing a snow protection hood on the outdoor unit. [Explanation of symbols]

[0055] 1. Stand 2 Outdoor unit 10. Main frame 11 Upper frame 12 Leg members 20 Shielding plate 20A 1st shielding plate 20B 2nd shielding plate 30 Screw tools 100 Outdoor unit 101 Air outlet 102 First air intake 103 Second air intake 201 Main body of the shielding plate 202 Return portion of shielding plate A~D Side area

Claims

1. A mounting frame for the outdoor unit of an air conditioner, Including the frame body and the shielding plate, The aforementioned mounting frame body is The upper frame for mounting the outdoor unit has horizontal frame members arranged in a rectangular shape, It includes at least four leg members extending downward from each corner of the upper frame, The shielding plate is fixable to the frame body such that it covers at least one of the four side regions defined by the adjacent pair of leg members and the horizontal frame member connecting them. The shielding plate includes a main body portion that covers the side region and a return portion that extends from the upper end of the main body portion to partially cover the upper side of the frame body. The return portion has a slope that descends toward the main body portion. A mounting bracket for the outdoor unit.

2. The stand for an outdoor unit according to claim 1, wherein the shielding plate includes a first shielding plate and a second shielding plate, each covering a different side region.

3. The mounting base for an outdoor unit according to claim 1 or 2, wherein the shielding plate can be fixed to the mounting base body using screws.

4. A method for installing an outdoor unit using the stand for the outdoor unit described in Claim 1, The first step is to install the frame body outdoors, The second step involves fixing the outdoor unit to the upper frame of the mounting frame body, The third step includes fixing the shielding plate to at least one of the side regions of the frame body, How to install the outdoor unit.

5. The outdoor unit has a rectangular shape in plan view with four sides, and an air intake port is provided on at least one of the sides. In the second step, the outdoor unit is fixed to the frame body such that the side surface on which the air intake is provided corresponds to one side area of ​​the frame body. In the third step, the shielding plate is fixed to the frame body so as to cover one of the side areas, as described in claim 4, for the installation method of an outdoor unit.

6. The outdoor unit has a rectangular shape in plan view with four sides, and an air outlet is provided on at least one of the sides. In the second step, the outdoor unit is fixed to the frame body such that the side surface on which the air outlet is provided corresponds to one side region of the frame body. In the third step, the shielding plate is fixed to the frame body so as to cover one of the side areas, as described in claim 4, for the installation method of an outdoor unit.

7. The method for installing an outdoor unit according to claim 4, further comprising a fourth step of installing a snow protection hood on the outdoor unit.

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