# US 10,309,713 B2 · Scheduling defrost events and linking refrigeration circuits in a refrigeration system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,713 B2 - Document ID: US10309713B2 - Status: Granted - Kind: B2 - Application number: 14/520,564 - Filed: 2014-10-22 - Published: 2016-04-28 - Granted: 2019-06-04 - Earliest claimed: 2014-10-22 - Assignees: Honeywell International Inc. - Applicants: Honeywell International Inc. - Inventors: Charles J. Tiranno; Victor Lavrisiuk - Web page: https://patentgrep.com/patent/US10309713B2 ## CPC - F25D 21/006: {with electronic control circuits} - F25D 21/002: {Defroster control} - F25D 21/004: {Control mechanisms (F25D21/006 takes precedence)} - F25D 21/008: {by timer} - F25D 2400/361: Interactive visual displays - F25D 2700/02: Sensors detecting door opening - 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 Methods, devices, and systems for scheduling defrost events and linking refrigeration circuits in a refrigeration system are described herein. One method includes receiving, by a computing device, a number of defrost events per day for a refrigeration circuit, a duration for each of the number of defrost events, a start time for an initial one of the number of defrost events, and a maximum number of concurrent defrost events for the refrigeration system, determining, by the computing device, a defrost event schedule for the refrigeration circuit based on the number of defrost events per day, the duration for each of the number of defrost events, the start time for the initial one of the number of defrost events, and the maximum number of concurrent defrost events, receiving, by the computing device, an adjustment to the determined defrost event schedule, and updating, by the computing device, the defrost event schedule based on the adjustment. ## Claims ### Claim 1 A method of scheduling defrost events for a refrigeration system, comprising: receiving, by a computing device, a number of defrost events per day for a refrigeration circuit, a duration for each of the number of defrost events, a single start time value that is a start time for an initial one of the number of defrost events, and a maximum number of concurrent defrost events for the refrigeration system, wherein the maximum number of concurrent defrost events for the refrigeration system is at least two, and wherein a defrost event for the refrigeration system corresponds to a time between starting and stopping a defrost of the refrigeration system; determining, by the computing device, a defrost event schedule for the refrigeration circuit based on the number of defrost events per day, the duration for each of the number of defrost events, the single start time value that is the start time for the initial one of the number of defrost events, and the maximum number of concurrent defrost events; receiving, by the computing device, an adjustment to the determined defrost event schedule; updating, by the computing device, the defrost event schedule based on the adjustment; and executing, by an additional computing device, defrost events in the refrigeration system in accordance with the updated defrost event schedule. ### Claim 2 (depends on 1) The method of claim 1, wherein the method includes receiving, by the computing device, a selection of the refrigeration circuit for which the defrost event schedule is to be determined. ### Claim 3 (depends on 1) The method of claim 1, wherein the adjustment to the determined defrost event schedule includes an adjustment to the single start time value that is the start time for the initial one of the number of defrost events. ### Claim 4 (depends on 1) The method of claim 1, wherein the adjustment to the determined defrost event schedule includes changing the defrost event schedule to a fixed defrost event schedule. ### Claim 5 (depends on 1) The method of claim 1, wherein the method includes displaying, by the computing device upon an adjustment to the determined defrost event schedule shifting one or more of the number of defrost events beyond an end of the defrost event schedule, a message indicating that the one or more of the number of defrost events will not be included in the updated defrost event schedule. ### Claim 6 (depends on 1) The method of claim 1, wherein receiving the number of defrost events per day, the duration for each of the number of defrost events, the single start time value that is the start time for the initial one of the number of defrost events, and the maximum number of concurrent defrost events includes receiving an adjustment to a default value. ### Claim 7 (depends on 1) The method of claim 1, wherein the determined defrost event schedule includes a same time interval between each of the number of defrost events.