JP7809021B2 - air conditioning equipment - Google Patents

Description

An embodiment of the present invention relates to an air conditioning device.

The air conditioning device has a first unit and a second unit. The first unit has a first heat exchanger that functions as either a heat absorber or a heat radiator. The second unit has a second heat exchanger that functions as the other of a heat absorber and a heat radiator. In an integrated air conditioning device, the first unit and the second unit are fixed side by side above a stand. The air conditioning device has refrigerant piping that connects the first unit and the second unit. The refrigerant piping is located below the first unit and the second unit. The air conditioning device has a cover that covers the refrigerant piping. There is a demand for an air conditioning device that allows for easy maintenance.

Japanese Patent Application Laid-Open No. 2021-32520 JP 2017-67371 A JP 2010-117103 A International Publication No. 2017/138132

The problem that this invention aims to solve is to provide an air conditioning system that allows for easy maintenance.

An air conditioning apparatus according to an embodiment includes a first unit, a second unit, a base, refrigerant piping, a cover, and a fastening member. The first unit includes a first heat exchanger that functions as either a heat absorber or a heat radiator. The second unit includes a second heat exchanger that functions as the other of the heat absorber and the heat radiator. The base secures the first unit and the second unit above. The refrigerant piping is disposed below the first unit and the second unit and connects the first unit and the second unit. The cover covers the refrigerant piping. The fastening member fastens the cover to at least one of the first unit, the second unit, and the base. The fastening member is movable in a first direction from a fastening position and detachable. The first unit and the second unit are not present in the first direction of the fastening position. The base includes a pair of main frames to which the first unit and the second unit are fixed. The pair of main frames extend in a second direction in which the first unit and the second unit are aligned. The rack does not have a frame extending in the second direction below the pair of main frames. At least a portion of the refrigerant pipe and at least a portion of the cover are disposed between the pair of main frames.

FIG. 1 is a conceptual diagram of a refrigeration cycle circuit of an air conditioner. FIG. FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 4 . FIG. 4 is a perspective view of the periphery of the first cover as viewed from the rear side. FIG. 4 is a perspective view of the periphery of the first cover as viewed from the front side. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 4; FIG. 4 is a perspective view of the periphery of the second cover as viewed from the front side. An explanatory diagram of how to remove the cover.

Hereinafter, an air conditioning apparatus according to an embodiment will be described with reference to the drawings.
1 is a perspective view of an air conditioning apparatus. The air conditioning apparatus 1 has a first unit 10, a second unit 20, a base 30, and refrigerant piping 8. The first unit 10 and the second unit 20 are arranged side by side above the base 30.

In this application, the Z direction, X direction, and Y direction of the Cartesian coordinate system are defined as follows: The Z direction is the vertical direction, and the +Z direction is the upward direction. The X direction and Y direction are horizontal directions. The Y direction is the longitudinal direction of the stand 30 and the width direction of the air conditioning unit 1. The +Y direction is the direction from the second unit 20 to the first unit 10. The X direction is the lateral direction of the stand 30 and the depth direction of the air conditioning unit 1. The +X direction is the direction from the back to the front of the air conditioning unit 1.

The first unit 10 is an indoor unit, and the second unit 20 is an outdoor unit. The first unit 10 has a first heat exchanger 11 that functions as either a heat absorber or a heat radiator. The second unit 20 has a second heat exchanger 21 that functions as the other of a heat absorber and a heat radiator. The air conditioning device 1 is an integrated air conditioning device. In an integrated air conditioning device 1, the first unit 10 and the second unit 20 are placed outdoors as an integrated unit. The first unit 10, which is an indoor unit, is connected to the room by a duct (not shown). For example, the air conditioning device 1 has two second units 20. The number of second units 20 may be one, or three or more.

With the integrated air conditioning unit 1, the first unit 10, which is the indoor unit, is located outdoors, so it occupies less space indoors. Because the first unit 10 is located outdoors, there is less maintenance work required indoors. Because the first unit 10 is located outdoors, operating noise is less likely to be detected indoors. Because the first unit 10 is located outdoors, the refrigerant piping 8 can be connected in advance between the first unit 10 and the second unit 20. No refrigerant piping 8 connection work is required at the installation location of the air conditioning unit 1.

Figure 2 is a conceptual diagram of a refrigeration cycle circuit of an air conditioner. The air conditioner 1 has a refrigeration cycle circuit. The refrigeration cycle circuit has a compressor 2, a four-way valve 3, a second heat exchanger 21, an expansion device 5, a first heat exchanger 11, and refrigerant piping 8 that circulates refrigerant through these components. The compressor 2, the four-way valve 3, the second heat exchanger 21, and the expansion device 5 are housed in a second unit 20. The first heat exchanger 11 is housed in a first unit 10. The expansion device 5 may also be housed in the first unit 10.

Compressor 2 compresses the low-pressure gas refrigerant taken in to produce high-temperature, high-pressure gas refrigerant. Accumulator 2b is located upstream of compressor 2. Accumulator 2b separates the gas-liquid two-phase refrigerant and supplies the gas refrigerant to compressor 2.

The four-way valve 3 reverses the flow direction of the refrigerant in the refrigerant pipe 8 of the second heat exchanger 21 , the expansion device 5 and the first heat exchanger 11 .
2, the refrigerant discharged from the compressor 2 flows sequentially through the second heat exchanger 21, the expansion device 5, and the first heat exchanger 11. In this state, the second heat exchanger 21 functions as a condenser (heat radiator), and the first heat exchanger 11 functions as an evaporator (heat absorber).
2, the refrigerant discharged from the compressor 2 flows sequentially through the first heat exchanger 11, the expansion device 5, and the second heat exchanger 21. At this time, the first heat exchanger 11 functions as a condenser (heat radiator), and the second heat exchanger 21 functions as an evaporator (heat absorber).

The condenser dissipates heat from the high-temperature, high-pressure gas refrigerant discharged from the compressor 2, and converts the high-temperature, high-pressure gas refrigerant into a high-pressure liquid refrigerant.
The expansion device 5 reduces the pressure of the high-pressure liquid refrigerant sent from the condenser, and converts the high-pressure liquid refrigerant into a low-temperature, low-pressure two-phase gas-liquid refrigerant. For example, the expansion device 5 is an expansion valve.
The evaporator converts the gas-liquid two-phase refrigerant sent from the expansion device 5 into low-pressure gas refrigerant. The low-pressure gas refrigerant that has passed through the evaporator is taken into the compressor 2 via the accumulator 2b.

In this way, in the refrigeration cycle circuit, the refrigerant, which is the working fluid, circulates while changing phase between gas and liquid. The refrigerant releases heat as it changes phase from gas to liquid, and absorbs heat as it changes phase from liquid to gas. In the first heat exchanger 11 of the first unit 10, heat exchange occurs between the refrigerant circulating inside the refrigerant piping 8 and the air circulating outside the refrigerant piping 8. Air that passes outside the first heat exchanger 11 is introduced into the room via a duct (not shown). The air conditioning unit 1 heats and cools the room.

The air conditioning unit 1 has a refrigerant pipe 8 that connects the first unit 10 and the second unit 20. In an all-in-one air conditioning unit 1, the refrigerant pipe 8 is pre-connected between the first unit 10 and the second unit 20. The air conditioning unit 1 is transported to the installation site and installed with the refrigerant pipe 8 pre-connected.

Figure 3 is an exploded perspective view of the air conditioning unit. Figure 4 is a bottom view of the air conditioning unit. In Figure 4, the covers 40, 50 are not shown, and the outlines of the covers 40, 50 are indicated by dashed double-dashed lines.

The mount 30 secures the first unit 10 and the second unit 20 in the +Z direction (upward). The mount 30 has a pair of main frames (longitudinal channels) 31m, 31n and multiple subframes (shortitudinal channels) 32a-32e. The pair of main frames 31m, 31n and the multiple subframes 32a-32e are formed from steel material with a U-shaped cross section.

The pair of main frames 31m, 31n extend in the Y direction. The pair of main frames 31m, 31n are arranged at both ends of the frame 30 in the X direction. The pair of main frames 31m, 31n are arranged parallel to each other. The first unit 10 and the second unit 20 are fixed to the pair of main frames 31m, 31n.

The multiple sub-frames 32a-32e extend in the X direction. The multiple sub-frames 32a-32e are arranged between the pair of main frames 31m, 31n. Both ends of the multiple sub-frames 32a-32e in the X direction are connected to the pair of main frames 31m, 31n. The multiple sub-frames 32a-32e are arranged side by side in the Y direction and parallel to each other. The multiple sub-frames 32a-32e include, from the -Y direction to the +Y direction, a first sub-frame 32a, a second sub-frame 32b, a third sub-frame 32c, a fourth sub-frame 32d, and a fifth sub-frame 32e.

A wooden stand 39 for transporting the air conditioning unit 1 is attached to the mount 30 in the -Z direction. The wooden stand 39 creates a gap between the mount 30 and the ground. When transporting the air conditioning unit 1, the forklift's claws are inserted into the gap between the mount 30 and the ground. At the installation location of the air conditioning unit 1, the wooden stand 39 is removed from the mount 30, and the air conditioning unit 1 is installed.

The refrigerant piping 8 is arranged across the first unit 10 and the second unit 20. The refrigerant piping 8 is arranged near the +X-direction ends of the first unit 10 and the second unit 20. The refrigerant piping 8 is arranged in the -Z direction (below) of the first unit 10 and the second unit 20. The third sub-frame 32c is located in the -Z direction between the first unit 10 and the second unit 20. A notch is formed in the +Z direction of the third sub-frame 32c, and the refrigerant piping 8 is arranged inside the notch. The first sub-frame 32a and the second sub-frame 32b are located in the -Z direction of the second unit 20. The +Z-direction ends of the first sub-frame 32a and the second sub-frame 32b are located in the -Z direction from the +Z-direction ends of the pair of main frames 31m, 31n. The refrigerant piping 8 is located in the +Z direction of the second sub-frame 32b.

The air conditioning device 1 has covers 40 and 50 and fastening members for the covers 40 and 50 .
The covers 40, 50 are formed from a steel plate material or the like. The covers 40, 50 cover the refrigerant pipes 8. The covers 40, 50 are fastened to at least one of the first unit 10, the second unit 20, and the frame 30 by fastening members. The fastening members are screws, bolts, nuts, or the like. The covers 40, 50 include a first cover 40 and a second cover 50. The first cover 40 is disposed in the -Z direction of the first unit 10, and the second cover 50 is disposed in the -Z direction of the second unit 20.

In Figure 1, the +X direction surface panel of the first unit 10 is omitted. As shown in Figure 1, the refrigerant piping 8 extends in the -Z direction from the first heat exchanger 11. The control box 13 is located on the -Z direction of the first heat exchanger 11. The control box 13 is located at the corners of the first unit 10 in the -Z, +X, and +Y directions. The refrigerant piping 8 passes through the -Y direction of the control box 13 and extends in the -Z direction.

Figure 5 is a cross-sectional view taken along line V-V in Figure 4. The refrigerant piping 8 extends in the -Z direction of the bottom surface 12 of the first unit 10. The -Z end of the refrigerant piping 8 is in the -Z direction of the control box 13 and is positioned between the pair of main frames 31m, 31n. The -X end of the refrigerant piping 8 is in the -X direction of the control box 13.

The first cover 40 is box-shaped and houses the refrigerant piping 8 inside. The first cover 40 is positioned in the -Y direction of the control box 13 (see Figure 6). The -Z direction end of the first cover 40 is positioned in the -Z direction of the control box 13, between the pair of main frames 31m, 31n. The -X direction end of the first cover 40 is positioned in the -X direction of the control box 13.

Figure 6 is a perspective view of the area around the first cover from the rear side. Figure 7 is a perspective view of the area around the first cover from the front side. Most of the first unit 10, the entire second unit 20, and the refrigerant piping 8 are omitted from Figures 6 and 7.

As shown in Figure 6, the first cover 40 is formed in the shape of a rectangular parallelepiped box with a portion open. The first cover 40 is completely open in the -Y and +X directions. Approximately half of the first cover 40 is open in the +Z direction. The corners of the first cover 40 in the +Y direction and the +Z direction are open in a square shape. The refrigerant piping 8 is housed inside the box-shaped first cover 40.

As shown in Figure 6, the first unit 10 has a partition plate 14. The partition plate 14 covers the control box 13 in the -X and ±Z directions. A portion of the partition plate 14 in the +Z direction extends in the -Y direction.

The first cover 40 is positioned in the -Y direction of the control box 13. The first cover 40 has a mounting plate 44 extending in the +Z direction from the +X side edge of the +Z top plate. The first cover 40 has a mounting plate 44 extending in the +Y direction from the +X side edge of the +Y side plate. The mounting plate 44 is positioned in the -X direction of the partition plate 14. Through holes are formed in the partition plate 14 and the mounting plate 44. A fastening member 45 moves from the +X direction to the -X direction of the partition plate 14 and enters the through holes in the partition plate 14 and the mounting plate 44. The fastening member 45 screws into a female thread formed in the through hole in the mounting plate 44. The fastening member 45 fastens the first cover 40 to the partition plate 14 of the first unit 10.

As shown in FIG. 7, the first cover 40 is positioned in the +Y direction of the third subframe 32c. The first cover 40 has a mounting plate 48 that extends in the -X direction from the -Y edge of the back panel in the -X direction. Through holes are formed in the mounting plate 48 and the third subframe 32c. A fastening member 49 moves from the +Y direction to the -Y direction of the mounting plate 48, entering the through holes in the mounting plate 48 and the third subframe 32c. The fastening member 49 threads into the female threads formed in the through holes in the third subframe 32c. The fastening member 49 fastens the first cover 40 to the third subframe 32c of the pedestal 30. In this way, the first cover 40 is fixed to the air conditioning unit 1.

As shown in Figure 5, when transporting the air conditioning unit 1, the forklift claws F are inserted into the stand 30 in the -Z direction. The claws F may be inserted from the rear side of the air conditioning unit 1 in the -X direction in the +X direction. There is a possibility that the claws F may be inserted toward the refrigerant piping 8 located at the end of the air conditioning unit 1 in the +X direction. The refrigerant piping 8 in the -X and -Z directions is covered by the first cover 40. The first cover 40 protects the refrigerant piping 8 from contact with the claws F and prevents damage to the refrigerant piping 8. The first cover 40 also protects the refrigerant piping 8 from external factors other than contact with the claws F.

Figure 8 is a cross-sectional view taken along line VIII-VIII in Figure 4. In the -Z direction of the second unit 20, the refrigerant pipe 8 extends in the Y direction.

The second cover 50 has an L-shape in cross section perpendicular to the Y direction. The second cover 50 has a bottom plate 51 and a back plate 52. The bottom plate 51 is positioned in the -Z direction of the refrigerant piping 8. The back plate 52 is positioned in the -X direction of the refrigerant piping 8. The second cover 50 houses the refrigerant piping 8 inside the bottom plate 51 and back plate 52.

The bottom plate 51 of the second cover 50 is inclined with respect to the horizontal plane (XY plane). The bottom plate 51 is inclined in the +X and -Z directions. Water droplets that fall onto the bottom plate 51 move in the +X and -Z directions due to gravity. A gap exists between part of the +X-direction edge of the bottom plate 51 and the main frame 31m of the stand 30. In other words, the bottom plate 51 has an opening at the -Z-direction end (lower end). Water droplets fall through the gap and are less likely to remain on the bottom plate 51. Corrosion of the second cover 50 is suppressed.

Figure 9 is a front perspective view of the periphery of the second cover. Most of the first unit 10, the entire second unit 20, and the refrigerant piping 8 are omitted from Figure 9. The +Z-direction ends of the first sub-frame 32a and the second sub-frame 32b are positioned in the -Z direction relative to the +Z-direction ends of the pair of main frames 31m, 31n. The -X-direction end of the bottom plate 51 of the second cover 50 is positioned in the +Z direction relative to the +Z-direction ends of the first sub-frame 32a and the second sub-frame 32b. The +X-direction end of the bottom plate 51 is positioned in the -Z direction relative to the +Z-direction ends of the first sub-frame 32a and the second sub-frame 32b. A notch 53 is formed in the +X-direction end of the bottom plate 51. The first sub-frame 32a and the second sub-frame 32b are positioned inside the notch 53.

The second cover 50 has a mounting plate 56 that extends in the -Z direction from the -Y end of the bottom plate 51. The mounting plate 56 is positioned in the -Y direction of the first subframe 32a. Through holes are formed in the mounting plate 56 and the first subframe 32a. A fastening member 57 moves from the -Y direction of the mounting plate 56 to the +Y direction and enters the through holes in the mounting plate 56 and the first subframe 32a. The fastening member 57 screws into a female thread formed in the through hole in the first subframe 32a. The fastening member 57 fastens the second cover 50 to the first subframe 32a of the pedestal 30.

As shown in FIG. 7, the second cover 50 has an attachment plate 58 that extends in the -X direction from the +Y end of the back plate 52. The attachment plate 58 is positioned in the -Y direction of the third subframe 32c. Through holes are formed in the third subframe 32c and the attachment plate 58. A fastening member 59 moves from the +Y direction to the -Y direction of the third subframe 32c and enters the through holes in the third subframe 32c and the attachment plate 58. The fastening member 59 screws into a female thread formed in the through hole in the attachment plate 58. The second cover 50 is fastened to the third subframe 32c of the pedestal 30 by the fastening member 59.

As shown in Figure 8, when transporting the air conditioning unit 1, the forklift claws F are inserted into the stand 30 in the -Z direction. The claws F may be inserted from the rear side of the air conditioning unit 1 in the -X direction in the +X direction. There is a possibility that the claws F may be inserted toward the refrigerant piping 8 located at the end of the air conditioning unit 1 in the +X direction. The refrigerant piping 8 in the -X and -Z directions is covered by the second cover 50. The second cover 50 protects the refrigerant piping 8 from contact with the claws F and prevents damage to the refrigerant piping 8. The second cover 50 also protects the refrigerant piping 8 from external factors other than contact with the claws F.

A maintenance method for the air conditioning apparatus 1 will now be described.
During maintenance of the air conditioner 1, it is checked whether there is a refrigerant leak in the refrigerant pipe 8. The first cover 40 and the second cover 50 are removed, and the state of the refrigerant pipe 8 is checked.

A method for removing the first cover 40 will now be described.
As shown in FIG. 6 , the fastening member 45 of the first cover 40 can be removed by moving it in the +X direction (first direction) from the fastening position. The worker removes the +X-direction front panel (not shown) of the first unit 10 to expose the +X-direction side of the fastening member 45 to the outside. The worker moves the fastening member 45 in the +X direction to remove it from the first unit 10. The first unit 10 and the second unit 20 are not present in the +X direction from the fastening position of the fastening member 45. The fastening member 45 can be removed without removing the first unit 10 and the second unit 20 from the rack 30. Because the +X-direction side of the fastening member 45 is connected to the outside, the fastening member 45 can be easily removed. By removing the fastening member 45, the first cover 40 is removed from the first unit 10.

As shown in FIG. 7, the fastening member 49 of the first cover 40 can be removed by moving it in the +Y direction (first direction) from its fastened position. As shown in FIG. 5, an opening 18 is present at the -Z end of the rear surface of the first unit 10 in the -X direction. An operator inserts a tool through the opening 18 to move the fastening member 49 in the +Y direction and remove it from the pedestal 30. The first unit 10 and second unit 20 are not present in the +Y direction from the fastening position of the fastening member 49. The fastening member 49 can be removed without removing the first unit 10 and second unit 20 from the pedestal 30. By removing the fastening member 49, the first cover 40 is removed from the pedestal 30. In this manner, the first cover 40 is removed from the air conditioning unit 1.

Figure 10 is an explanatory diagram of how to remove the cover. The fourth sub-frame 32d is located in the +Y direction from the first cover 40. The worker moves the first cover 40, which has been removed from the air conditioning unit 1, in the +Y direction until it is close to the fourth sub-frame 32d. The refrigerant piping 8 that was covered by the first cover 40 is exposed.

A method for removing the second cover 50 will now be described.
As shown in Fig. 7 , the fastening member 59 of the second cover 50 can be removed by moving it in the +Y direction (first direction) from the fastened position. An operator inserts a tool through the opening 18 shown in Fig. 5 to move the fastening member 59 in the +Y direction and remove it from the pedestal 30. The first unit 10 and the second unit 20 are not present in the +Y direction from the fastening position of the fastening member 59. The removal of the fastening member 59 can be performed without removing the first unit 10 and the second unit 20 from the pedestal 30.

As shown in FIG. 9 , the fastening member 57 of the second cover 50 can be removed by moving it in the -Y direction (first direction) from its fastening position. The worker moves the fastening member 57 in the -Y direction to remove it from the pedestal 30. The first unit 10 and the second unit 20 are not located in the -Y direction from the fastening position of the fastening member 57. The fastening member 57 can be removed without removing the first unit 10 and the second unit 20 from the pedestal 30. Because the -Y direction of the fastening member 57 is connected to the outside, removing the fastening member 57 is easy. By removing the fastening member 59 and the fastening member 57, the second cover 50 is removed from the pedestal 30 and the air conditioning unit 1.

As shown in Figure 10, the -Y direction of the second cover 50 is exposed to the outside. The worker removes the second cover 50 from the air conditioning unit 1, moves it in the -Y direction, and removes it from the air conditioning unit 1. The refrigerant piping 8 that was covered by the second cover 50 is now exposed. With the entire refrigerant piping 8 exposed, the presence or absence of refrigerant leaks in the refrigerant piping 8 can be checked.

After maintenance of the air conditioning unit 1 is completed, the first cover 40 and the second cover 50 may be reattached to the air conditioning unit 1. As described above, the first unit 10 and the second unit 20 are not present in the direction in which the fastening members 45, 49, 57, and 59 are removed. The direction opposite to the removal direction is the installation direction of the fastening members 45, 49, 57, and 59. The installation work of the fastening members 59 can be performed without removing the first unit 10 and the second unit 20 from the stand 30.

As described in detail above, the air conditioning apparatus 1 of this embodiment includes a first unit 10, a second unit 20, a base 30, refrigerant piping 8, covers 40, 50, and fastening members 45, 49, 57, 59. The first unit 10 includes a first heat exchanger 11 that functions as either a heat absorber or a heat radiator. The second unit 20 includes a second heat exchanger 21 that functions as the other of a heat absorber and a heat radiator. The base 30 secures the first unit 10 and the second unit 20 in the +Z direction. The refrigerant piping 8 is disposed in the -Z direction of the first unit 10 and the second unit 20, connecting the first unit 10 and the second unit 20. The covers 40, 50 cover the refrigerant piping 8. The fastening members 45, 49, 57, 59 fasten the covers 40, 50 to at least one of the first unit 10, the second unit 20, and the base 30. The fastening members 45, 49, 57, and 59 can be moved in a first direction from the fastening position and released. The first unit 10 and second unit 20 are not present in the first direction of the fastening positions 45, 49, 57, and 59.

The fastening members 45, 49, 57, and 59 can be moved in the first direction from their fastening positions to detach the first unit 10 and second unit 20 without removing them from the frame 30. By detaching the fastening members 45, 49, 57, and 59, the covers 40 and 50 are removed, exposing the refrigerant piping 8. This allows for easy maintenance.

The first direction of the fastening position communicates with the outside. In the first direction of the fastening position, there is a space in which the fastening members 45, 49, 57, and 59 can be removed. An operator can access this space from outside the air conditioning apparatus 1. In this space, the operator can handle the tools necessary for removing the fastening members 45, 49, 57, and 59.
The fastening members 45, 49, 57, and 59 can be easily removed.

The bottom plate 51 of the second cover 50 is inclined relative to the horizontal plane and has an opening at the lower end.
Water droplets that fall onto the bottom plate 51 move toward the lower end due to gravity and fall through the opening, thereby suppressing corrosion of the second cover 50.

In at least one embodiment described above, the fastening members 45, 49, 57, and 59 are located in the first direction of the fastening position, with no first unit 10 or second unit 20 present. This allows for easy maintenance.

While several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments may be embodied in a variety of other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. These embodiments and their variations are within the scope of the invention and its equivalents as defined in the claims, as well as the scope and spirit of the invention.

1...air conditioning unit, 8...refrigerant piping, 10...first unit, 11...first heat exchanger, 20...second unit, 21...second heat exchanger, 30...mounting base, 40...first cover (cover), 45...fastening member, 49...fastening member, 50...second cover (cover), 51...bottom plate, 57...fastening member, 59...fastening member.

Claims (3)

a first unit including a first heat exchanger that functions as one of a heat sink and a heat radiator;
a second unit including a second heat exchanger that functions as the other of the heat absorber and the heat radiator;
a base for fixing the first unit and the second unit thereon;
a refrigerant pipe disposed below the first unit and the second unit and connecting the first unit and the second unit;
a cover for covering the refrigerant pipe;
a fastening member that fastens the cover to at least one of the first unit, the second unit, and the base, and that is movable in a first direction from a fastening position to be detached,
the first unit and the second unit are not present in the first direction of the fastening position,
the mount has a pair of main frames to which the first unit and the second unit are fixed,
the pair of main frames extend in a second direction in which the first unit and the second unit are aligned,
the frame does not have a frame extending in the second direction below the pair of main frames,
At least a portion of the refrigerant piping and at least a portion of the cover are disposed between the pair of main frames.
Air conditioning equipment. The first direction of the fastening position communicates with the outside.
The air conditioning apparatus according to claim 1. The bottom plate of the cover is inclined relative to a horizontal plane.
The air conditioning apparatus according to claim 1 or 2.