# US 2014/0196486 A1 · Refrigeration system with indoor condenser and remote fan > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196486 A1 - Document ID: US20140196486A1 - Status: Published application - Kind: A1 - Application number: 14/153,457 - Filed: 2014-01-13 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Assignees: Hussmann Corporation - Applicants: Hussmann Corporation - Inventors: Jony M. Zangari - Web page: https://patentgrep.com/patent/US20140196486A1 ## CPC - F25B 39/04: Condensers - F25D 13/00: Stationary devices, e.g. cold-rooms - F25B 2400/22: Refrigeration systems for supermarkets - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) ## Abstract A refrigeration system for a refrigerated merchandiser includes a refrigerated merchandiser disposed within an indoor environment, the refrigerated merchandiser including a case defining a product display area. The refrigeration system also includes a condenser coupled to the refrigerated merchandiser and disposed within the indoor environment, an evaporator coupled to the condenser and disposed within the indoor environment, a compressor coupled to the evaporator and disposed within the indoor environment, and a condenser fan assembly coupled to the condenser. The condenser fan assembly is disposed remote from the condenser in an ambient environment. ## Claims ### Claim 1 A refrigeration system for a refrigerated merchandiser, the refrigeration system comprising: a refrigerated merchandiser positioned in an indoor environment, the refrigerated merchandiser including a case defining a product display area; a condenser coupled to the refrigerated merchandiser within the indoor environment; an evaporator coupled to the condenser and positioned within the indoor environment; a compressor coupled to the evaporator and positioned within the indoor environment; and a condenser fan assembly coupled to the condenser, the condenser fan assembly disposed remote from the condenser in an ambient environment. ### Claim 2 (depends on 1) The refrigeration system of claim 1, wherein the refrigeration system includes a ductwork that provides airflow communication between the condenser and the ambient environment. ### Claim 3 (depends on 2) The refrigeration system of claim 2, wherein the condenser includes a condenser housing and a condenser coil, and wherein the ductwork is coupled at one end to the condenser housing adjacent the condenser coil. ### Claim 4 (depends on 3) The refrigeration system of claim 3, wherein the ductwork is coupled at an opposite end to the condenser fan assembly. ### Claim 5 (depends on 2) The refrigeration system of claim 2, wherein the ductwork has a primarily tubular construction. ### Claim 6 (depends on 2) The refrigeration system of claim 2, wherein the ductwork extends generally vertically between a top of the refrigerated merchandiser and a roof of a building. ### Claim 7 (depends on 2) The refrigeration system of claim 2, wherein the condenser fan assembly includes a fan that generates an airflow within the ductwork. ### Claim 8 (depends on 2) The refrigeration system of claim 2, wherein the condenser fan assembly includes a fan disposed adjacent an end of the ductwork. ### Claim 9 (depends on 1) The refrigeration system of claim 1, wherein the condenser fan assembly is disposed on a roof of a building. ### Claim 10 (depends on 1) The refrigeration system of claim 1, further comprising a controller that is coupled to the condenser fan assembly that directs the condenser fan assembly to move air both in and out of the indoor environment. ### Claim 11 (depends on 1) The refrigeration system of claim 1, wherein the condenser is a single condenser, and wherein the refrigeration system is a parallel refrigeration system that includes a plurality of merchandisers disposed within the indoor environment, each of the merchandisers coupled to the single condenser. ### Claim 12 (depends on 11) The refrigeration system of claim 11, wherein the parallel refrigeration system includes a plurality of compressors and evaporators, and wherein the compressors and the single condenser are connected in series with the evaporators in each merchandiser so that a refrigerated airflow is provided to the product display area in each refrigerated merchandiser. ### Claim 13 A method of operating a refrigeration system comprising: cooling an airflow with an evaporator in an indoor environment; directing the cooled airflow into a product display area of a refrigerated merchandiser positioned within the indoor environment; and directing a warmed airflow from a condenser in the indoor environment to an ambient environment with a condenser fan assembly disposed in the ambient environment, the condenser coupled to both the evaporator and the condenser fan assembly. ### Claim 14 (depends on 12) The method of claim 12, wherein the step of directing warmed air includes first detecting a temperature inside the indoor environment with a sensor disposed in the indoor environment, and based on the detected temperature, directing the warmed air to the ambient environment. ### Claim 15 (depends on 12) The method of claim 12, wherein the step of directing warmed air includes first detecting a temperature in the ambient environment with a sensor disposed in the ambient environment, and based on the detected temperature, directing the warmed air to the ambient environment. ### Claim 16 (depends on 12) The method of claim 12, wherein the step of directing warmed air includes first determining that the refrigerated merchandiser is in a cooling mode, and based on the determination that the refrigerated merchandiser is in a cooling mode, directing the warmed air to the ambient environment. ### Claim 17 A method of moving air with a refrigeration system, the method comprising: cooling air with an evaporator in an indoor environment and directing the cooled air into a product display area of a refrigerated merchandiser in the indoor environment; directing outside air from an ambient environment into the indoor environment with a condenser fan assembly disposed in the ambient environment, the condenser fan assembly coupled to a condenser disposed in the indoor environment; and warming the outside air with the condenser. ### Claim 18 (depends on 17) The method of claim 17, wherein the step of directing outside air includes first detecting a temperature in the indoor environment with a sensor disposed in the indoor environment, and based on the detected temperature, directing the outside air into the indoor environment. ### Claim 19 (depends on 17) The method of claim 17, wherein the step of directing outside air includes first detecting a temperature in the ambient environment with a sensor disposed in the ambient environment, and based on the detected temperature, directing the outside air into the indoor environment. ### Claim 20 (depends on 17) The method of claim 17, wherein the step of directing outside air includes first determining that the refrigerated merchandiser is in a heating mode, and based on the determination that the refrigerated merchandiser is in a heating mode, directing the outside air into the indoor environment.