Energy Recovery Ventilator Interlocking Installation for HVAC Systems
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Solution Overview
Problem
Existing energy recovery ventilators (ERVs) are cumbersome and costly to install due to the need for multiple duct pipes and require complex low-voltage wall controls, with inaccurate and difficult direct connections to heating or cooling systems, especially when trying to maintain sealing integrity.
Innovation Solution
An energy recovery system with interlocking mechanisms between the ERV and heating or cooling system components allows direct and secure attachment, using cleats to align and lock the ERV into position without damaging seals, simplifying installation and ensuring accurate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ERV is mounted on wall or ceiling with four duct pipes, then heat exchange function is achieved, but installation becomes costly and cumbersome
Solution Approach 1:
The patent combines the ERV unit with the air handler system by integrating it into the blower compartment, eliminating the need for separate wall/ceiling mounting and four duct pipes. The ERV becomes part of the existing HVAC system structure, reducing installation complexity while maintaining heat exchange functionality.
Solution Approach 2:
The ERV is designed to serve multiple functions within the air handler system: it provides heat recovery, fresh air intake, and exhaust air removal simultaneously by integrating with the existing blower compartment and ductwork, thereby reducing the need for separate installation components.
2Device complexity
If ERV connects directly to furnace or air handler, then duct pipe installation is eliminated, but positioning accuracy and sealing integrity become difficult to maintain
Solution Approach 1:
The patent incorporates pre-formed openings in the blower compartment specifically designed to receive the ERV unit. These pre-positioned openings ensure accurate alignment and proper sealing before the ERV is installed, eliminating the need for on-site positioning adjustments and maintaining sealing integrity.
Solution Approach 2:
The patent introduces a gasket as an intermediary sealing element between the ERV unit and the blower compartment. This gasket compensates for minor dimensional variations and ensures a reliable seal without requiring extremely precise positioning, thus maintaining sealing integrity while simplifying installation.
3Ease of operation
If installation kit with chains or straps is used, then ERV can be hung in position, but accuracy and ease of installation are compromised
Solution Approach 1:
The patent provides pre-positioned openings in the blower compartment that are precisely located to receive the ERV unit. This preliminary preparation ensures that the ERV aligns accurately with the ductwork and sealing surfaces, eliminating the need for chains or straps and improving both ease and accuracy of installation.
Solution Approach 2:
The patent replaces the mechanical hanging system (chains or straps) with a direct integration system where the ERV unit is positioned and secured through the pre-formed openings in the blower compartment. This substitution eliminates the need for separate hanging mechanisms and improves installation accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the installation process of ERVs by eliminating the need for multiple duct pipes and ensuring proper sealing without damaging gaskets, making the process more accurate and cost-effective.
Implementation Method 1
Within the heat exchanger, energy from the stale room air stream is transferred either to or from the outside air stream
Data Source
AI summary
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.