# US 2014/0190657 A1 · Accessory installation to a heating or cooling system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190657 A1 - Document ID: US20140190657A1 - Status: Published application - Kind: A1 - Application number: 14/075,340 - Filed: 2013-11-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Assignees: Carrier Corporation - Applicants: Carrier Corporation - Inventors: Dwight H. Heberer; Kent Kuffner - Web page: https://patentgrep.com/patent/US20140190657A1 ## CPC - F28D 21/0001: {Recuperative heat exchangers} - F24F 12/006: {using an air-to-air heat exchanger (F24F12/002 takes precedence)} - F24F 13/32: Supports for air-conditioning, air-humidification or ventilation units - F28F 9/0075: {Supports for plates or plate assemblies} - Y02B 30/56: Heat recovery units - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract An energy recovery system includes a heating or cooling system and an accessory operably connected to the heating or cooling system, or a component of the heating or cooling system. One or more accessory interlocking mechanisms are located at the housing interlocked with one or more complimentary interlocking mechanisms located at the system or the component of the heating or cooling system to secure the accessory directly to the component. A method of securing an accessory to a heating or cooling system or a component of a heating or cooling system includes aligning one or more accessory interlocking mechanisms with one or more complimentary interlocking mechanisms The accessory is urged toward an installed position by moving the accessory along a length of the one or more complimentary interlocking mechanisms. The one or more accessory interlocking mechanisms are interlocked with the complimentary interlocking mechanisms to secure the accessory. ## Claims ### Claim 1 An energy recovery system comprising: a heating or cooling system; and an accessory operably connected to the heating or cooling system, or a component of the heating or cooling system; and one or more accessory interlocking mechanisms disposed at the accessory interlocked with one or more complimentary interlocking mechanisms disposed at the heating or cooling system, or the component of the heating or cooling system to secure the accessory directly to system or to the component. ### Claim 2 (depends on 1) The energy recovery system of claim 1, wherein the one or more accessory interlocking mechanisms are two or more accessory interlocking mechanisms. ### Claim 3 (depends on 2) The energy recovery system of claim 2, wherein the two or more accessory interlocking mechanisms are substantially parallel to each other. ### Claim 4 (depends on 2) The energy recovery system of claim 2 wherein the two or more accessory interlocking mechanisms are substantially perpendicular to each other. ### Claim 5 (depends on 1) The energy recovery system of claim 1, wherein the one or more accessory interlocking mechanisms have a trough and a leg extending from the trough. ### Claim 6 (depends on 5) The energy recovery system of claim 5, wherein the complimentary interlocking mechanisms are at least partially insertable into the trough. ### Claim 7 (depends on 1) The energy recovery system of claim 1, wherein a cross-section of the one or more accessory interlocking mechanisms are one of J-shaped, S-shaped or T-shaped. ### Claim 8 (depends on 1) The energy recovery system of claim 1, wherein the accessory is an energy recovery ventilator including: a housing; and a heat exchanger disposed in the housing for recovery of thermal energy from a stale airflow of the heating or cooling system. ### Claim 9 A method of securing an accessory to a heating or cooling system, or to a component of a heating or cooling system comprising: aligning one or more accessory interlocking mechanisms disposed at the accessory with one or more complimentary interlocking mechanisms disposed at the system or at the component; urging the accessory toward an installed position by moving the accessory along a length of the one or more complimentary interlocking mechanisms; and interlocking the one or more accessory interlocking mechanisms with the complimentary interlocking mechanisms via the urging to secure the accessory to the system or to the component. ### Claim 10 (depends on 9) The method of claim 9, wherein interlocking the one or more accessory interlocking mechanisms with the one or more complimentary interlocking mechanisms comprises at least partially inserting the complimentary interlocking mechanisms into a trough of the one or more accessory interlocking mechanisms. ### Claim 11 (depends on 9) The method of claim 9, further comprising urging the energy recovery ventilator toward the installed position until is abuts a stopping mechanism defining a limit of the movement of the energy recovery ventilator. ### Claim 12 (depends on 9) The method of claim 9, further comprising locking the accessory into the installed position. ### Claim 13 (depends on 9) The method of claim 9, wherein the accessory is urged in a substantially horizontal direction toward the installed position. ### Claim 14 (depends on 9) The method of claim 9, wherein the accessory is urged in a substantially vertical direction toward the installed position. ### Claim 15 (depends on 9) The method of claim 9, wherein the component is one of a blower compartment, a return air duct or an air purifier. ### Claim 16 (depends on 9) The method of claim 9, wherein the system is one of a furnace, a fan coil or an evaporator coil.