Energy recovery ventilator

Patent metadata

Field	Value
Publication number	US-11035586-B2
Application number	US-201314376005-A
Country	US
Kind code	B2
Filing date	Jan 29, 2013
Priority date	Feb 2, 2012
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

An energy recovery system includes a heating and cooling system having a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and an energy recovery ventilator (ERV) having an intake air duct and an exhaust air duct, the ERV being energized by a direct electrical connection to the heating and cooling system. The return air duct is operable to receive stale conditioned air from a conditioned air space while the controller is configured for controlling the ERV to transfer energy from the stale conditioned air to an outside air stream.

First claim

The invention claimed is:

1. An energy recovery system, comprising:
a heating and cooling system including a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and
an energy recovery ventilator (ERV) including an intake air duct and an exhaust air duct;
wherein the return air duct is operable to receive return air from a conditioned air space; and
wherein the controller is configured for controlling the ERV to transfer energy from the return air to an outside air stream;
wherein the ERV is directly attached to the return air duct, the ERV including a supply port for directing fresh air to the return air duct and a return port for receiving return air from the return duct, the supply port and return port being located on the same side of the ERV and facing the return air duct, the supply port and return port being in direct communication with the return air duct;

the ERV positioned between the return duct and an air circulation blower compartment of the furnace or fan coil, the ERV directly connected to the return duct;
wherein the ERV comprises an air duct assembly coupled to each of the intake air duct and the exhaust air duct
wherein the exhaust air duct is coupled to a longitudinal cavity of the intake air duct.

2. An energy recovery system, comprising:
a heating and cooling system including a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and
an energy recovery ventilator (ERV) including an intake air duct and an exhaust air duct;
wherein the return air duct is operable to receive return air from a conditioned air space; and
wherein the controller is configured for controlling the ERV to transfer energy from the return air to an outside air stream;
wherein the ERV is directly attached to the return air duct, the ERV including a supply port for directing fresh air to the return air duct and a return port for receiving return air from the return duct, the supply port and return port being located on the same side of the ERV and facing the return air duct, the supply port and return port being in direct communication with the return air duct;

the ERV positioned between the return duct and an air circulation blower compartment of the furnace or fan coil, the ERV directly connected to the return duct;
wherein the ERV comprises a frame module supporting a heat exchange device and a fan module removably mounted to a portion of the frame module, the fan module including a fan for drawing outside air into the ERV and a fan for expelling exhaust air out of the ERV.

3. The energy recovery system of claim 2 wherein the fan module includes a damper to control flow of outside air into the ERV and a damper to control flow of exhaust air out of the ERV.

4. The energy recovery system of claim 2 , wherein the frame module is removable from the ERV.

5. The energy recovery system of claim 2 , wherein the ERV comprises a door mounted to the frame module.

6. The energy recovery system of claim 5 , wherein the heat exchange device is slidably mounted to the frame module, the heat exchange device slidably removable through the door.

7. An energy recovery system, comprising:
a heating and cooling system including a controller and a furnace or fan coil in fluid communication with each of a return air duct and a supply air duct; and
an energy recovery ventilator (ERV) including an intake air duct and an exhaust air duct;
wherein the return air duct is operable to receive return air from a conditioned air space; and
wherein the controller is configured for controlling the ERV to transfer energy from the return air to an outside air stream;
wherein the ERV is directly attached to the return air duct, the ERV including a supply port for directing fresh air to the return air duct and a return port for receiving return air from the return duct, the supply port and return port being located on the same side of the ERV and facing the return air duct, the supply port and return port being in direct communication with the return air duct;
the ERV positioned between the return duct and an air circulation blower compartment of the furnace or fan coil, the ERV directly connected to the return duct;
wherein the ERV is positioned above the air cleaner, the ERV and the air cleaner being positioned between the air circulation blower compartment housing the furnace or fan coil and the return duct.

8. The energy recovery system of claim 7 , wherein the system further comprises an air cleaner in fluid communication with the return air duct.

9. The energy recovery system of claim 8 , wherein the air cleaner is one of an air purifier or an air filter, the air cleaner being operable to communicate a filtered air stream from the return air duct to the furnace or fan coil, the filtered air stream comprising a filtered air flow from a mixture of the fresh air stream and the return air.

10. The energy recovery system of claim 7 , wherein the intake air duct is operable to receive the outside air stream from an outdoor air space.

11. The energy recovery system of claim 7 , wherein the exhaust air duct is operable to exhaust the return air from the conditioned air space.

12. The energy recovery system of claim 7 , wherein the ERV comprises an air duct assembly coupled to each of the intake air duct and the exhaust air duct.

13. The energy recovery system of claim 7 , wherein the furnace or fan coil is operable to receive a fresh air stream from the ERV.

14. The energy recovery system of claim 7 , wherein the furnace or fan coil is operable to communicate a conditioned air flow from an air circulation blower compartment to the supply air duct, the conditioned air flow including filtered air from the air cleaner.

Assignees

• Carrier Corp

Inventors

• Heberer Dwight H
• Dempsey Daniel J
• Adams Eric W
• Kuffner Kenton J

Classifications

• F24F12/006

  using an air-to-air heat exchanger (F24F12/002 takes precedence) · CPC title

• F24F2221/34

  Heater, e.g. gas burner, electric air heater · CPC title

• F24F1/0063 Primary

  by the mounting or arrangement of the heat exchangers · CPC title

• F24F2011/0002

  for admittance of outside air · CPC title

• F24F2221/54

  Heating and cooling, simultaneously or alternatively · CPC title