Patent ID: 11927359
Assignee: CARRIER CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 14:
15. A rooftop heating, ventilation, and air conditioning (HVAC) unit comprising:
a cabinet;
an energy recovery wheel which is configured to be mounted within the cabinet, wherein the energy recovery wheel is configured to transfer heat between an outdoor air stream and a return air stream when in an operational mode and is further configured not to transfer heat between the outdoor air stream and the return air stream when in a bypass mode;
a plurality of dampers configurable to direct the outdoor air stream and the return air stream through the rooftop HVAC unit, either through the energy recovery wheel or around the energy recovery wheel, wherein the plurality of dampers comprises:
a supply inlet damper which is configured to allow the outdoor air stream into the rooftop HVAC unit when opened;
a supply outlet damper which is configured to allow the outdoor air stream out of the energy recovery wheel when opened;
an exhaust outlet damper which is configured to allow the return air stream out of the energy recovery wheel through an exhaust outlet when opened;
a return outlet damper which is configured to allow the return air stream to flow away from a return inlet when opened;
a supply energy recovery damper which is configured to allow the outdoor air stream to contact the energy recovery wheel when opened and to direct outdoor air away from the energy recovery wheel when closed; and
a return energy recovery damper which is configured to allow the return air stream to contact the energy recovery wheel when opened and to direct return air away from the energy recovery wheel when closed.

a controller which is configured to adjust the plurality of dampers based on a selection between the operational mode and the bypass mode of the energy recovery wheel.