US3299657A

US3299657A - All-weather high side unit for refrigerating and air conditioning systems

Info

Publication number: US3299657A
Application number: US410846A
Authority: US
Inventors: Malkoff Hyman; Kramer Israel
Original assignee: Kramer Trenton Co
Current assignee: Kramer Trenton Co
Priority date: 1964-11-13
Filing date: 1964-11-13
Publication date: 1967-01-24
Anticipated expiration: 1984-01-24
Also published as: GB1101338A

Description

H. MALKOFF ETAL 3,299,657 ALL-WEATHER HIGH SIDE UNIT FOR REFRIGERATING Jan. 24, 1967 AND AIR CONDITIONING SYSTEMS 2 Sheets-Sheet 1 Filed Nov. 13, 1964 F l G 3 I INVENTORS TTORNEYS Jan. 24, 1967 H. MALKOFF ETAL ALL-WEATHER HIGH SIDE UNIT FOR REFRIGERAIING AND AIR CONDITIONING SYSTEMS Filed Nov. 13, 1964 FIG.4

2 Sheets-Sheet 2 United States Patent 3 299,657 ALL-WEATHER HIGHSIDE UNIT FOR RElFRltGlilR- ATING AND AIR CONDITIONING SYSTEMS Hyman Malkoff, Levittown, Pa., and Israel Kramer,

Trenton, N.J., assignors to Kramer Trenton Co., Trenton, N..I., a corporation of New Jersey Filed Nov. 13, 1964, Ser. No. 410,846 8 Claims. (Cl. 62-259) This invention relates to an all-weather high side unit for refrigerating and air conditioning systems, with air cooled condenser, so called because it is designed for roof top installation, for indoor installation against a wall opening, or for outdoor installation against a building wall or free standing, which unit may be produced in single or multiple form such as a multiplicity of these high sides mounted on a single frame for a single rigging or handling in transporation in order to facilitate mounting either upon the roof or upon the ground level; the invention having for its chief object an arrangement whereby the said unit or units may be serviced while the attendant is completely sheltered from freezing or inclement weather.

Another object is to provide such a unit or a pinrality thereof with a sheltered space at the rear from which the attendant may conveniently reach and service all of the operating parts.

Anotherv object is to provide for arranging a plurality of the units in back to 'back formation or in line side by side.

Another object is to provide an arrangement wherein such a unit may face an opening in a building wall, preferably fitted with louvers either in the opening or constituting part of the unit itself, and be serviced from Within the building; or be located with an open back against an outside wall.

.Another object is so to arrange the structure that the air stream or streams induced by the condenser fan or fans enters or enter horizontally at the front of the unit at condenser level, then carroms or carrom off the rear wall of the housing for the unit, or a building wall, takes or take a downward course to compressor level, and finally exits or exit around the compressor at the front of the housing.

A further object is to provide certain improvements in the structure whereby the above stated objects, and others inherent in the invention may be efliciently attained.

One of the problems of servicing such all weather units, which are required to operate year round especially when employed for refrigeration, arises during bad weather conditions. This invention offers a solution to this problem by embodying a completely sheltered space at the rear of the unit whether the latter is single or in plurality.

Again, as these units must be available for use in freezing temperatures and frequently incorporate hermetic compressors, it is very advantageous to supply an air stream so directed as to cool the compressor body, its head, and its motor housing, which notably increases the life and improves the functioning of the motor-compressor combination, such desirable result being satisfied by the present invention.

Practical embodiments of the invention are represented in the accompanying drawings, in which:

FIG. 1 represents a top plan view of an assembly of four of the high side units arranged in pairs backto-back with a fully sheltered service space therebetween, and indicating the doors to the space as well as the so-called jifly hoods partly open at the front of the units;

ice

FIG. 2 represents an end view of the same with the doors removed, but showing the roof over the whole assembly and the lights within the service space, the course of the air streams being indicated by arrows;

FIG. 3 represents a similar view, illustrating a door to the service space in position;

FIG. 4 represents, on a larger scale, an end view of a single unit, or a plurality of units arranged in line with the service shelter at the rear and the course of the air stream again indicated by arrows; and

FIG. 5 represents, on the same scale, partly in elevation and partly in vertical section, a single unit placed against the inside of an opening in a building wall with louvers in the unit at the opening.

In brief summary, the invention contemplates a high side unit or group of units, including condenser and compressor, fully adapted for installation exposed to all conditions of weather but equipped with a completely sheltered space for an attendant to service the working parts from the rear side of the unit or units, and so arranged that the air stream generated by the condenser fan or in pairs, back to back, on a building roof 5, with a sheltered service space 6 between the pairs. The condensers and their fans, two for each condenser, are shown in broken lines and marked 7, 7, 8, 8, 9, 9, and 10, 10. Doors (or access panels) at each end of the service space are indicated at 11, 12, while the so-called jiffy hoods for each unit bear the

reference numerals

13, 14, 15 and 16. These hoods, as is well known, are three sided, hinged at their tops, and may be opened widely to offer inspection and servicing or opened partly to provide a duct for the discharge of the air current to be hereinafter described, conventional means being fitted for holding them in both positions.

In FIG. 2, the roof over the whole group is shown and marked 17; lights (or electric outlets) are indicated at 18, 19, within the service space; and two of the compressors are denoted by 20, 21. The lower portions of the back walls of the units consist of

removable panels

22, 23, that are constructed in any suitable manner so that they may conveniently be removed for servicing and thereafter replaced. As such constructions are well within the skill of artisans and the detail thereof con stitutes no part of this invention no mechanical showing thereof is deemed to be required. Similarly, the

jifiy hoods

13, 14, 15 and 16, should 'be hinged to the units.

The end doors 11 and 12 for the service space may be hung in a usual manner as indicated in FIG. 3, their hinges being marked 24.

As previously stated, the course of the air streams induced by the condenser fans is indicated by the arrows on FIG. 2, and it will be observed that, after traversing the condensers, the streams make an downward turn to bathe the compressors and then pass outwardly from the units through the partly open jiify hoods.

The FIG. 4 end view of a single unit, which may be one of several in line, differs considerably from the form of the invention represented in FIGS. 13, but not in function. Here the unit as a whole is denoted by 25, the condenser and its fans by 26, the compressor by 27, and the swinging jilfy hood by 28. The rear access panels of the unit may be removed leaving

openings

29 and 30, while the sheltered service space in back of the unit is constituted by a solid wall 31 and a roof 32 which covers the whole structure; a door 33 being suitably hinged to the wall 31 as indicated at 34. In this arrangement the air stream follows a course or path similar to that described in connection with FIG. 2, and again indicated by arrows,

with the difference that, in this form of FIG. 4, the air carroms, so to speak, off the rear wall 31 to turn and bathe the compressor on its outflow from the unit before discharging through the jiffy hood.

This form of the invention could be mounted on the outside of a building wall near the ground or backed up on the roof against the wall of an adjoining building, thus eliminating the necessity for the wall 31 of the unit as the servicing would be through the door 3-3 with the shelter as previously described.

A further modified form of the invention is presented in FIG. 5. Here the unit is housed within a building, a portion of a vertical wall of the latter being denoted by 35, and having an opening 36 therein substantially co-extensive in size with the unit so that the latter is, at its front, exposed to outdoor weather conditions. It is desirable to install, either in the wall 35 or in the housing of the unit (the latter arrangement being shown), a suitable number of louvers, two being marked 37, which may be adjustable as usual.

In this embodiment or location of the unit, the servicing is through a flat normally closed but hinged panel or door 38 with the attendant, of course, fully sheltered as he will be inside the building. The air stream, represented by arrows, follows the path previously explained with the same functional efiect, the condenser bearing the numeral 39 and the compressor 40, while the panel or door 38 is closed during operation.

While, in the foregoing, the description has been limited to a high side unit or units it should be understood that the same is or are adapted for connection in any suitable manner to the evaporator or evaporators and other usual elements of refrigerating or air conditioning systems When put into use.

It Will be observed that each form of the invention shown and described attains all the above listed objectives, as well as others that inhere in the structures; and it should be understood that various changes may be resorted to in the form, material and arrangement of the parts Without departing from the spirit and scope of the invention, so that we do not intend to be limited to details shown or described except as they are included in the claims or be required by disclosures of the prior art.

What we claim is:

1. A high side unit for a refrigerating or air condition ing system designed and adapted for installation in operative connection with a building exposed after'installation to weather conditions prevailing in any season or climate, said unit comprising at least compressor and condenser housed within a casing having a back with at least one opening therein to permit servicing, a movable closure for at least one of said openings, the condenser being air-cooled and elevated with relation to the compressor, the casing having a front provided with at least one opening to facilitate the flow of an air current through the condenser and thence downwardly around the cornpressor, and the unit being constructed with a sheltered servicing space for entry and protection of an attendant,

2. A high side structure for a refrigerating or air conditioning system designed and adapted for installation in operative connection with a building exposed after installation to weather conditions prevailing in any season or climate, said structure comprising at least two units including at least compressor and condenser and having a sheltered servicing space for entry and protection of an attendant, the units being arranged back to 'back with the servicing space therebetween and a roof over said space.

3. A structure as defined in claim 2, in which each unit includes a casing provided with a back having an opening to the servicing space.

4. A structure as defined in claim 3, which also includes a door for at least one end of the servicing space.

5. A structure as defined in claim 4, in which there are four units arranged in pairs back to back.

6. A high side unit for a refrigerating or air conditioning system designed and adapted for installation in operative connection with a building exposed after installation to weather conditions prevailing in any season or climate, said unit comprising at least compressor and condenser and being constructed with a servicing space for entry and protection of an attendant, the condenser being air-cooled and elevated with relation to the compressor, together with a vertical wall at the rear of the compressor and condenser, which wall serves to turn and deflect downwardly the air current drawn in by the condenser and cause the current to bathe the compressor.

7. A unit as defined in claim 6, in which the said wall constitutes part of the unit itself.

8. A high side unit for a refrigerating or air conditioning system designed and adapted for installation in operative connection with the wall of a building having an opening therein approximately commensurate with the size of the unit which latter is thus adapted to be positioned at the said opening with its front exposed to weather condi tions prevailing in any season or climate, the said unit comprising at least compressor and condenser housed within a casing, the condenser being air-cooled and elevated with relation to the compressor, the casing having a front provided with at least one opening to facilitate the flow of an air current through the condenser and thence downwardly around the compressor, and also having a back provided with an opening therein for servicing the unit from within the building.

References Cited by the Examiner UNITED STATES PATENTS 2,027,845 1/1936 Speicher 62-4298 2,478,617 8/1949 Anderegg 6226-3 XR 2,569,009 9/1951 Kuempel 62-498 X 2,881,600 4/1959 Elfving 6-2-239 2,886,955 5/1959 Bauman 62259 3,195,522 7/1965 Swenson 62-507 X 3,205,674- 9/ 1965 Arnold 62259 X 3,242,686 3/1966 Bowman 62 -259 X MEYER BERLIN, Primary Examiner.

Claims

1. A HIGH SIDE UNIT FOR A REFRIGERATING OR AIR CONDITIONING SYSTEM DESIGNED AND ADAPTED FOR INSTALLATION IN OPERATIVE CONNECTION WITH A BUILDING EXPOSED AFTER INSTALLATION TO WEATHER CONDITIONS AT LEAST COMPRESSOR AND CONCLIMATE, SAID UNIT COMPRISING AT LEAST COMPRESSOR AND CONDENSER HOUSED WITHIN A CASING HAVING A BACK WITH AT LEAST ONE OPENING THEREIN TO PERMIT SERVICING, A MOVABLE CLOSURE FOR AT LEAST ONE OF SAID OPENINGS, THE CONDENSER BEING AIR-COOLED AND ELEVATED WITH RELATION TO THE COMPRESSOR, THE CASING HAVING A FRONT PROVIDED WITH AT LEAST ONE OPENING TO FACILITATE THE FLOW OF AN AIR CURRENT THROUGH THE CONDENSER AND THENCE DOWNWARDLY AROUND THE COMPRESSOR, AND THE UNIT BEING CONSTRUCTED WITH A SHELTERED SERVICING SPACE FOR ENTRY AND PROTECTION OF AN ATTENDANT.