Adjustable flow heat recovery ventilator and method

Details Adjustable flow heat recovery ventilator and method Adjustable flow heat recovery ventilator and method

F - Mech Eng,Light,Heat,Weapons

24

F

F24F 7/08 (2006.01) F24F 3/044 (2006.01) F24F 11/00 (2006.01) F24F 12/00 (2006.01)

Patent

CA 2455712

The present invention provides a novel system for and method of balancing fresh air flow and exhaust air flow through a ventilator. The ventilator comprises an air-to- air heat exchanger operably mounted within a principal fresh air flow passage and a principal stale air flow passage. The invention involves two flow meters respectively connected to the principal fresh air flow passage and the principal stale air flow passage, in parallel to the air-to- air heat exchanger. The flow meters are proportionally responsive to mass flow of the air flow passages to which they are connected. The invention further involves at least one damper within at least one of the air flow passages. To ensure that both air flow meters indicate a substantially equal response, each damper can be adjusted to change the amount of air flow within its respective air flow passage.

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