AU2015201249A1

AU2015201249A1 - Refrigeration cabinet capable of inversion to enable selective mounting of the motor.

Info

Publication number: AU2015201249A1
Application number: AU2015201249A
Authority: AU
Inventors: Craig Pickford
Original assignee: Cyberchill Pty Ltd
Current assignee: Cyberchill Pty Ltd
Priority date: 2014-03-10
Filing date: 2015-03-10
Publication date: 2015-09-24
Anticipated expiration: 2035-03-10
Also published as: AU2015201249B2; NZ705857A

Abstract

A refrigeration cabinet including a top, base, back, sidewalls forming a fridge cabinet and at least one door defining an internal space which is subject to cooling by a refrigeration unit including a condenser unit and motor assembled in a detachable cartridge. The cabinet is capable of inversion to enable a refrigeration cabinet having a bottom mounted refrigeration cartridge to be converted to a cabinet having a top mounted cartridge or to enable a cabinet having a top mounted refrigeration cartridge to be converted to a cabinet having a bottom mounted cartridge 56 '0Z~6 6G FIGURtE 12 48-t> 5D FIGURE 13 FIGURE 14 64 '53

Description

REFRIGERATION CABINET CAPABLE OF INVERSION TO ENABLE SELECTIVE MOUNTING OF THE MOTOR. BACKGROUND [0001] The present invention relates to refrigeration apparatuses and more particularly relates to a fridge which has the capacity for conversion between a configuration in which the motor is mounted on the top of the fridge and a configuration in which the motor is mounted on the bottom of the fridge. The invention further relates to a fridge cabinet which is arranged to allow mounting of a fridge motor on top of the fridge or on the bottom. PRIOR ART [0002] There are in existence a variety of industrial fridges including single door, two door and multi door versions each offering different volumetric capacity for storage of goods. Manufacturers in the past have offered industrial fridges with either top mounted motors or bottom mounted. A fridge is essentially a storage cabinet having doors which seal an internal space and a compressor and condenser unit which effects cooling of the contents in the refrigerated space to the required temperature. Points of sale such as supermarkets, bottle shops, restaurants, service stations and the like often have a significant number of industrial fridges. Such fridges are usually placed in the stores by product suppliers to facilitate sales of the products without the owner or leaseholder of the retail outlet having to bear the capital and maintenance costs of the fridges. Fridges supplied by different product suppliers may have different designs which does not provide the best aesthetic appearance required by the retailers. Fridges which have the motor in the top generally have a different frontal appearance from fridges which have the motor in the bottom. Retailers ideally prefer fridges which have the same frontal look and configuration across the range of fridges, so that all of the fridges fit in and have a consistent appearance. If a fridge with a bottom mounted motor is side by side with a fridge having a top mounted motor the two will look out of place together. Retailers often stipulate that the fridges must be either all top mounted or all bottom mounted to ensure that there is a regular and consistent appearance along the wall of the premises. On occasions a retailer will stipulate that in a case where there is a mixture of top mounted and bottom mounted the fridges of one of those versions are to be removed and replaced with new fridges having a matching appearance to those being 1 retained. Generally a top mounted fridge will have a top panel which defines a housing in which the motor assembly is hidden from view. A bottom mounted fridge will normally include a bottom panel which hides the motor underneath the fridge. Presently there is no fridge including industrial fridges which can be converted from one having the top mounted motor to one having a bottom mounted motor and vice versa. More particularly there is no know fridge in which the cabinet can be inverted to accommodate the motor in the top or bottom. INVENTION [0003] The present invention seeks to ameliorate the problems of the prior art systems by providing an alternative method and assembly for conversion of fridges from top mounted to bottom mounted motors without replacing the fridge. The present invention seeks to provide a useful alternative to the known fridges and a convenient method of site conversion of a fridge whose motor is mounted in the top to one whose motor is mounted in the bottom or from one whose motor is mounted in the bottom to one whose motor is mounted in the top. [0004] Although the invention will be described with reference to one and two door embodiments in which the cabinet can be inverted, it will be appreciated by persons skilled in the art that the conversion can be also effected without inversion of the cabinet. [0005] In its broadest form the present invention comprises: a refrigeration cabinet including a top, base, back, sidewalls and at least one door defining an internal space which is subject to cooling by a refrigeration unit including a condenser unit and motor assembled in a detachable cartridge; wherein a bottom space and top space of the cabinet are arranged to selectively receive the condenser unit cartridge in the top or bottom space, such that the cabinet can be provided with a top or bottom mounted cartridge thereby enabling a bottom mounted cartridge to be converted to a top mounted cartridge or a top mounted cartridge to be converted to a bottom mounted cartridge. [0006] According to one embodiment the cabinet has connection ports located in either the top or bottom. In an alternative embodiment the cabinet has connection ports located in both the top and bottom to receive corresponding connections in the refrigeration unit cartridge. According to a preferred embodiment the cabinet walls, top and base define a front elevation area which receives said at least one door and also a panel which conceals the refrigeration cartridge. The panel may be located to conceal a top mounted refrigeration cartridge or bottom mounted to conceal a bottom mounted cartridge. The cabinet may be proportioned to receive 1, 2, 3 or 4 doors depending upon requirements. Typically industrial fridges are two or three door. It will be 2 appreciated by persons skilled in the art that although the invention will be primarily described with reference to one and two door cabinets other door number and size configurations are contemplated. Preferably the base of the cabinet receives detachable support wheels which can be fixed to either the bottom or to the top when inverted. [0007] According to a method aspect the present invention comprises a method of converting a refrigeration cabinet having a top mounted refrigeration cartridge to a refrigeration cabinet having a bottom mounted cartridge; the method comprising the steps of; removing the barrier panel which conceals the refrigeration cartridge removing the refrigeration cartridge from the top of the cabinet; optionally removing doors from the cabinet; removing wheels from the cabinet; inverting the cabinet so the base becomes the top; mounting the refrigeration cartridge to the bottom of the cabinet; re attaching the barrier panel; reattaching the doors at a level which accommodates the use of the bottom panel. [0008] A similar method is adopted in a case where the cabinet is converted from a bottom mounted cartridge to a top mounted cartridge. [0009] According to an alternative method aspect the present invention comprises a method of converting a refrigeration cabinet having a bottom mounted refrigeration cartridge to a refrigeration cabinet having a top mounted cartridge; the method comprising the steps of; removing the barrier panel which conceals the refrigeration cartridge removing the refrigeration cartridge from the bottom of the cabinet; optionally removing doors from the cabinet; removing wheels from the cabinet; inverting the cabinet so the bottom becomes the top; mounting the refrigeration cartridge to the top of the cabinet; re attaching the barrier panel. [0010] In the event of removal of the doors, reattaching the doors at a level which accommodates the use of the top panel. [0011] In another broad form the present invention comprises: a refrigeration unit including a top, base, back, sidewalls forming a fridge cabinet and at least one door defining an internal space which is subject to cooling by a refrigeration unit including a condenser unit and motor assembled in a detachable cartridge; wherein the cabinet is capable 3 of inversion to enable to enable a bottom mounted refrigeration cartridge to be converted to a top mounted cartridge or a top mounted cartridge to be converted to a bottom mounted refrigeration cartridge. According to one embodiment the fridge is a is a single door or two door having chamfered vertical edges. [0012] The present invention provides an alternative to the known prior art and the shortcomings identified. Other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawings and illustrations, which forms a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the invention. In the accompanying illustrations, like reference characters designate the same or similar parts throughout the several views. The following detailed description is, therefore, not to be taken as limiting the scope of the present invention. BRIEF DESCRIPTION OF DRAWINGS [0013]The present invention will now be described according to a preferred but non limiting embodiment and with reference to the accompanying illustrations wherein: Figure 1 shows a single door refrigeration cabinet from a perspective view which has a base and top adapted to selectively receive a drive motor cartridge mounted in the bottom. Figure 2 shows the single door refrigeration cabinet of figure 1 from a front view. Figure 3 shows the single door refrigeration cabinet of figure 1 from a side view. Figure 4 shows the single door refrigeration cabinet of figure 1 from a top view. Figure 5 shows the single door refrigeration cabinet from a perspective view which has a motor cartridge fitted to the top. Figure 5a shows a front elevation view of the fridge cabinet of figure 5. Figure 6 shows the single door refrigeration cabinet of figure 5 from a top view with motor cartridge fitted. Figure 6a shows a side elevation of the cabinet of figure 5. 4 Figure 7 shows a two door refrigeration cabinet which has a base and top with the receive a drive motor cartridge. Figure 8 shows the two door refrigeration cabinet of figure 7 from a front view. Figure 9 shows the two door refrigeration cabinet of figure 7 from a side view. Figure 10 shows the two door refrigeration cabinet of figure 7 from a top view. Figure 11 shows the two door refrigeration cabinet from a perspective view which has a motor cartridge fitted. Figure 12 shows the two door refrigeration cabinet of figure 7 from a top view with motor cartridge fitted. Figure 13 shows a front elevation of the fridge cabinet of figure 11. Figure 14 shows a side elevation of the fridge cabinet of figure 11. Figure 15 shows a schematic layout of a conversion of a fridge cabinet from a top mounted to a bottom mounted refrigeration cartridge. Figure 16 shows a perspective view of a single door fridge with a top mounted cartridge concealed by a top panel. Figure 17 shows a perspective view of a single door fridge with a bottom mounted cartridge concealed by a bottom panel. Figure 18 shows a perspective view of a double door fridge with a top mounted cartridge concealed by a top panel. Figure 19 shows a perspective view of a double door fridge with a bottom mounted cartridge concealed by a bottom panel. DETAILED DESCRIPTION [0014] Although the invention will be described with reference to its application in commercial refrigeration and particularly single and multi door cabinet refrigeration, it will be appreciated that the assembly and method to be described, will have other applications such as in domestic refrigeration. The present invention to be discussed below 5 with reference to particular embodiments, addresses the aforesaid problems of fridge replacement and provides a useful alternative. Throughout the specification a reference to a refrigeration cartridge can be taken to be a refrigeration plant including but not limited to a condenser, fans and gas supply, coils and compressor/motor. A reference to a refrigeration cabinet can be taken to be a reference to a structure which defines an internal space which is refrigerated and a space which is taken by a refrigeration cartridge. A refrigeration cabinet typically includes a top, base, back, sidewalls and at least one door defining an internal space which is subject to cooling by a refrigeration unit. The refrigeration unit typically includes a condenser unit and motor assembled in a detachable cartridge connectable to refrigeration gas lines. [0015] Figure 1 shows according to one embodiment a perspective view of a single door fridge 1 which comprises a cabinet 2 including a base 3, top 4, and sidewalls 5 and 6 defining an internal space 10 . Fridge 1 further comprises a single door 7 and a refrigeration plant (concealed) in a space 8 behind removable bottom panel 9 and a back 15. The characteristic of this fridge is that the refrigeration plant is located below the door behind detachable panel 9. Fridge 1 is supported on wheels 11, 12, 13 and 14 ( obscured) . This creates an appearance in which the door is disposed above the panel 9 providing a configuration according to one embodiment. [0016] Figure 2 shows with corresponding numbering the single door refrigeration cabinet 1 of figure 1 from a front view. Figure 3 shows the single door refrigeration cabinet 1 of figure 1 from a side view; and Figure 4 shows the single door refrigeration cabinet of figure 1 from a top view. [0017] Figure 5 shows with corresponding numbering the single door refrigeration cabinet 1 from a perspective view which has a motor cartridge 20 fitted. The configuration of figure 5 is an inversion of that described in relation to figure 1. To obtain the Figure 5 configuration from the fridge configuration of figure 1, various adjustments are made to the cabinet 2 as follows. A first step is to remove the refrigeration cartridge from the space 8 behind the panel 9. When panel 9 is removed there is initially a substantial gap between the floor and the bottom 3 of the cabinet. Wheels 11, 12, 13 and 14 are removed along with door 7. In figure 1, door 7 is shown located above panel 9 such that the top 21 of the door 7 is substantially flush with cabinet top 4. Door 7 and its hinges are removed from cabinet 2 as shown in figure 1. This leaves the cabinet 2 in its raw form with no wheels, no door, a removed front panel 9 front panel and motor cartridge removed. In this state the cabinet 2 may be inverted. Once inverted wheels 11, 12, 13 and 14 ( obscured) may be reattached to what was before inversion, top 4 now forming the bottom of the fridge. Door 7 is now reattached so that bottom edge 23 is now proximate what was top 4 and 6 now form a cabinet bottom. Edge 21 of door 7 locates short of top edges 24 and 25 of sides 5 and 6 respectively. In effect door 7 is dropped lower down cabinet 2 after inversion of the cabinet. This arrangement creates between reattached panel 9 and side walls 5 and 6 a new top space 26 which receives and retains therein refrigeration cartridge 20. Fridge 1 is now a top motor mounted fridge which has an inverted appearance compared to the appearance of the fridge configuration of figure 1. Figure 6 shows with corresponding numbering the single door refrigeration cabinet of figure 5 from a top view with motor cartridge 20 fitted in space 26. Figure 5a shows with corresponding numbering, a front elevation view of the fridge cabinet of figure 5. Figure 6a shows a side elevation of the cabinet of figure 5 [0018] Figure 7 shows a two door refrigeration cabinet 40 which comprises a cabinet 41 including a base 42, top 43, and sidewalls 44 and 45 defining an internal space 46 . Fridge 40 further comprises doors 47 and 48 and a refrigeration plant (concealed) in a space 49 behind removable bottom panel 50 and a back 51. The characteristic of this fridge 40 is that the refrigeration plant is located below the door behind detachable panel 50. Fridge 40 is supported on wheels 52, 53, 54 and 55 ( obscured) . This creates an appearance in which the doors 47 and 48 are disposed above the panel 50 providing a configuration according to one embodiment. [0019] Figure 8 shows with corresponding numbering the two door refrigeration cabinet 40 of figure 7 from a front view. Figure 9 shows with corresponding numbering the two door refrigeration cabinet 40 of figure 7 from a side view. Figure 10 shows with corresponding numbering the two door refrigeration cabinet 40 of figure 7 from a top view. [0020] Figure 11 shows with corresponding numbering the two door refrigeration cabinet 40 from a perspective view which has a motor cartridge 56 fitted and with the cabinet 41 inverted to form a top mounted motor configuration. The fridge configuration of figure 11 is an inversion of that described in relation to the fridge of figure 7. To obtain the Figure 11 configuration from the fridge configuration of figure 7, various adjustments are made to the cabinet 41 as follows. A first step is to remove the refrigeration cartridge 56 ( obscured in Figure 7) from the space behind the panel 50. When panel 50 is removed there is initially a substantial gap ( 49 in Figure 7) between the floor and the bottom 42 of the cabinet. Wheels 52, 53, 54 and 55 are removed. Doors 47 and 48 may be removed but can remain in the cabinet 40 can be inverted with doors connected. In figure 7, door 47 and 48 are shown located above panel 50 such that the top regions 63 and 64 of the doors 47 and 48 are flush with top 43. Doors 47 and 48 and its hinges can be removed. This leaves the cabinet 41 in its raw form with no wheels, door, front panel or motor. In this state the cabinet 41 may be inverted. As shown in figure 11, once inverted, wheels 52, 53, 54 and 55 ( obscured) may be reattached to what was before inversion, top 43 now 7 forming the bottom 56 of the fridge. Doors 47 and 48 are now reattached so that respective bottom edges 63 and 64 are now proximate bottom 56. Edge 60 of door 47 and edge 61 of door 48 locate short of top edges 66 and 67 of sides 44 and 45 respectively above relocated panel 50. This arrangement creates between reattached panel 50 and side walls 44 and 45 a new top space 68 which receives and retains therein refrigeration cartridge 56. Fridge 40 of figure 11 is now a top motor mounted fridge which has an inverted appearance compared to the appearance of the fridge configuration of figure 7. Figure 12 shows the two door refrigeration cabinet 40 of figure 11 from a top view with motor cartridge 56 fitted. Figure 13 shows a front elevation of the fridge cabinet of figure 11. Figure 14 shows a side elevation of the fridge cabinet of figure 11. [0021] Figure 15 shows a schematic layout of a conversion of a two door fridge cabinet 40 from a top mounted configuration similar to that described with reference to figure 11 back to a bottom mounted configuration similar to that described for figure 7 . To achieve this the steps taken to convert the Figure 7 fridge into the Figure 11 fridge are in a general sense reversed. [0022] A first step is to remove the refrigeration cartridge 56 from the space 68 behind the panel 50. When panel 50 is removed there is initially a substantial gap 68 between the top of the doors 47 and 48 and top edges 66 and 67. Wheels 52, 53, 54 and 55 are removed along with doors 47 and 48. Depending upon the door configuration required, doors 47 and 48 can be left connected for the inversion stage as they are likely to have a similar appearance in a first orientation and inverted. If doors 47 and 48 are removed, this leaves the cabinet 41 in its raw form with no wheels, door, front panel or motor. With the wheels 52, 53, 54 and 55, panel 50 and refrigeration plant 56 removed cabinet 41 can be inverted 180 degrees as indicated by arrows 80 and 81. This places what were top edges 66 and 67 close to the floor and allows the retention of space 68 underneath the internal refrigerated space. Doors 47 and 48 and its hinges if removed can be reset. According to one embodiment the doors could be allowed to undergo inversion as with the cabinet. It is more convenient to remove the doors and simply lower the m for reattachment to the inverted cabinet 41. Figure 15 shows doors 47 and 48 remaining in their left and right positions in the top mounted configuration and bottom mounted configuration. In this case the door hinges are reattached lower down along the edges of sides 44 and 45. With the doors removed, the cabinet 41 may be inverted. Once inverted wheels 52, 53, 54 and 55 may be reattached to the bottom underside 65 of the fridge. Respective bottom edges 63 and 64 of doors 47 and 48 are now proximate bottom underside 65. As before edge 60 of door 47 and edge 61 of door 48 locate short of what is now after inversion the top edges 71 and 72 of sides 44 and 45 respectively. This arrangement creates between reattached panel 50 and side walls 44 and 45 a new bottom underside space 65 which receives and retains therein refrigeration cartridge 56 ( now obscured behind panel 50). 8 [0023] In an alternative embodiment to the above descriptions the cabinet can be constructed so that the refrigeration plant can be moved from to top bottom or bottom to top without inversion of the cabinet. For instance there can be a panel top and bottom concealing spaces which can house the refrigeration plant top or bottom. This may reduce the volume of the refrigeration space. In another embodiment to achieve the conversion without inversion of the cabinet, the doors can be lifted up to create a space either top or bottom. [0024] The bottom and top of the cabinet may be arranged to selectively receive the condenser cartridge so that the cabinet can be inverted to enable a bottom mounted cartridge to be converted to a top mounted cartridge or a top mounted cartridge to be converted to a bottom mounted cartridge. According to one embodiment the cabinet has connection ports located in either the top or bottom. In an alternative embodiment the cabinet has connection ports located in both the top and bottom to receive corresponding connections in the refrigeration unit cartridge. [0025] Figure 16 shows a finished perspective view of a single door fridge 90 with a top mounted cartridge ( obscured) concealed by a top panel 91.. Fridge 90 comprises a cabinet 92 including a base 93 and sidewalls 94 and 95 defining an internal refrigerated space 96 . Fridge 90 further comprises a single door 97. The characteristic of this fridge 90 is that the refrigeration plant is located above the door behind detachable panel 91. Fridge 90 is supported on wheels 98, 99, 100 and 101 ( obscured). In this embodiment door 97 is hinged on the left and swings clockwise. Fridge 90 of figure 16 can be converted into the configuration of figure 17. Figure 17 shows with corresponding numbering a finished perspective view of the single door fridge 90 with a bottom mounted cartridge concealed by what becomes bottom panel 91. In this embodiment door 97 has been lifted up to meet what was the base of cabinet 93 and is now top 102 [0026] Figure 18 shows a finished perspective view of a double door fridge 120 with a top mounted cartridge concealed by a top panel 121. Fridge 120 which comprises a cabinet 122 including a base 123 and sidewalls 124 and 125 defining an internal refrigerated space 126 . Fridge 120 further comprises doors 127 and 128. The characteristic of this fridge 120 is that the refrigeration plant is located above the door behind detachable panel 121. Fridge 120 is supported on wheels 129, 130, 131 and 132 ( obscured). Fridge 120 of figure 18 can be simply converted into the configuration of figure 19. Figure 19 shows with corresponding numbering a finished perspective view of the single door fridge 120 with a bottom mounted cartridge concealed by what becomes bottom panel 121. In this embodiment doors 127 and 128 have after their removal and inversion of cabinet 122 been lifted up and rehinged to meet what was the base of cabinet 123 and is now top 134 9 [0027] Typically industrial fridges are one, two or three door. It will be appreciated by persons skilled in the art that although the invention will be primarily described with reference to one and two door cabinets other door configurations are contemplated such as four or more doors. The present invention provides a method and assembly for enabling conversion of a fridge cabinet from a top mounted refrigeration cartridge to a bottom mounted fridge cartridge using inversion of the cabinet to change the cartridge space occupying the top of the cabinet to a cartridge space occupying the bottom of the fridge. The present invention also provides a method and assembly for conversion of a fridge cabinet which avoids the need to replace one fridge with another fridge when a user requires a top motor mounted fridge instead of a bottom mounted fridge or a bottom mounted fridge instead of a top mounted fridge. This is often required to match other fridges in a row of fridges so that the appearance of each fridge is substantially the same. The cabinet has connection ports located in either the top or bottom spaces to receive corresponding connections in the condenser unit cartridge. [0028] The apparatus of the invention utilizes some conventional components and the invention resides in the combination of these conventional components and the manner of use thereof. Hence, any conventional materials and designs of the individual components are acceptable to the present invention so long as the materials and designs function in the manner described. [0029] While the principles of the invention were hereinbefore described with reference to the drawings and preferred embodiments, the specific illustrations of the invention are intended to only exemplify, rather than limit, the invention, and the invention is applicable to the extent described above, and as defined in the statements of invention and the various embodiments. [0030] It will be recognised by persons skilled in the art that numerous variations and modifications may be made to the invention broadly described herein without departing from the overall spirit and scope of the invention. 10

Claims

1. A refrigeration cabinet including a top, base, back, sidewalls and at least one door defining an internal space which is subject to cooling by a refrigeration unit including a condenser unit and motor assembled in a detachable cartridge; wherein a bottom space and top space of the cabinet are arranged to selectively receive the condenser unit cartridge in the top or bottom space, such that the cabinet can be provided with a top or bottom mounted cartridge thereby enabling a bottom mounted cartridge to be converted to a top mounted cartridge or a top mounted cartridge to be converted to a bottom mounted cartridge.

2. A refrigeration cabinet according to claim 1 where in the cabinet has connection ports located in either the top or bottom spaces to receive corresponding connections in the condenser unit cartridge.

3. A refrigeration cabinet according to claim 2 wherein the cabinet walls, top and base define a front elevation area which receives said at least one door which closes a refrigerated space.

4. A refrigeration cabinet according to claim 3 further comprising a panel which conceals the cartridge.

5. A refrigeration cabinet according to claim 4 wherein the panel is detachable.

6. A refrigeration cabinet according to claim 5 wherein the cabinet has connection ports located in both the top and bottom of the cabinet.

7. A refrigeration cabinet according to claim 6 wherein the panel is located to conceal the top space for a top mounted cartridge or the bottom space to conceal a bottom mounted cartridge.

8. A refrigeration cabinet according to claim 7 wherein the cabinet can be inverted to convert a bottom mounted cartridge to a top mounted cartridge or to convert a top mounted cartridge to a bottom mounted cartridge.

9. A refrigeration cabinet according to claim 8 wherein the base of the cabinet receives detachable support wheels which can be fixed to either the bottom or to the top of the refrigeration cabinet when inverted.

10. A refrigeration cabinet according to claim 11 wherein each door has chamfered vertical edges. 1

11. A refrigeration cabinet according to claim 10 wherein the cabinet is proportioned to receive one door.

12. A refrigeration cabinet according to claim 10 wherein the cabinet is proportioned to receive two door.

13. A refrigeration cabinet according to claim 10 wherein the cabinet is proportioned to receive three doors.

14. A refrigeration cabinet according to claim 10 wherein the cabinet is proportioned to receive four doors.

15. A refrigeration cabinet including a top, base, back, sidewalls forming a fridge cabinet and at least one door defining an internal space which is subject to cooling by a refrigeration unit including a condenser unit and motor assembled in a detachable cartridge; wherein the cabinet is capable of inversion to enable a refrigeration cabinet having a bottom mounted refrigeration cartridge to be converted to a cabinet having a top mounted cartridge or to enable a cabinet having a top mounted refrigeration cartridge to be converted to a cabinet having a bottom mounted cartridge

16. A refrigeration cabinet according to claim 15 wherein the conversion is enables by un plugging the cartridge from one end of the cabinet, inverting the cabinet and plugging the cartridge into the opposite end of the cabinet via co operating connections respectively in cabinet and cartridge..

17. A refrigeration unit according to claim 16 wherein the detachable cartridge is concealed in a non refrigerated space behind a removable panel.

18. A refrigeration unit according to claim 17 wherein the removable panel is disposed either above or below said at least one door.

20. A method of converting a refrigeration cabinet having a top mounted refrigeration cartridge to a refrigeration cabinet having a bottom mounted cartridge, the refrigeration cabinet including a top, base, back, sidewalls and at least one door defining an internal space which is subject to cooling by a refrigeration cartridge including a condenser unit and motor assembled in a detachable cartridge; the method comprising the steps of; a) removing a barrier panel which conceals the refrigeration cartridge b) removing the refrigeration cartridge from the top of the cabinet; 2 c) inverting the cabinet so the base becomes the top; d) mounting the refrigeration cartridge to the bottom of the cabinet; e) re attaching the barrier panel.

21. A method of converting a refrigeration cabinet according to claim 20 comprising the further step of removing the doors prior to inversion of the cabinet and reattaching the doors following inversion of the cabinet.

22. A method of converting a refrigeration cabinet according to claim 21 comprising the further step of removing wheels from the cabinet;

23. A method of converting a refrigeration cabinet having a bottom mounted refrigeration cartridge to a refrigeration cabinet having a top mounted cartridge, the refrigeration cabinet including a top, base, back, sidewalls and at least one door defining an internal space which is subject to cooling by a refrigeration cartridge including a condenser unit and motor assembled in a detachable cartridge; the method comprising the steps of; a) removing a barrier panel which conceals the refrigeration cartridge b) removing the refrigeration cartridge from the bottom of the cabinet; c) inverting the cabinet so the top becomes the base; d) mounting the refrigeration cartridge to the top of the cabinet; e) re attaching the barrier panel.

24. A method of converting a refrigeration cabinet according to claim 23 comprising the further step prior to inverting the cabinet of removing the doors

25. A method of converting a refrigeration cabinet according to claim 24 comprising the further step prior to inverting the cabinet of removing wheels from the cabinet before replacing said wheels after inversion of the cabinet. 3