Adaptable HVAC Base With Multi-Opening Duct Sealing
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Solution Overview
Problem
HVAC units face installation challenges due to unique footprints and duct configurations from different manufacturers, requiring additional adapter curbs that increase costs, height, and can lead to limited availability and downtime.
Innovation Solution
An adaptable base with multiple openings and seals that can align and seal with various return and supply duct configurations, allowing a single HVAC unit to fit multiple roof curb designs without additional adapters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single HVAC unit is designed to fit only one specific roof curb design, then the installation is simple and straightforward, but additional adapter curbs are required when installing on different roof curb designs, increasing costs and complexity
Solution Approach 1:
The base is designed with multiple openings (first supply air opening, second supply air opening, first return air opening, second return air opening) that can accommodate different duct configurations. This universal design allows a single base to interface with various roof curb designs without requiring adapter curbs, directly resolving the technical contradiction by enabling multi-functionality.
Solution Approach 2:
The base openings are segmented into multiple separate openings rather than a single unified opening. Each opening can be independently sealed and connected to different duct configurations, allowing the base to adapt to various roof curb designs while maintaining a relatively simple overall base structure.
2Adaptability or versatility
If adapter curbs are used to accommodate different roof curb designs, then the HVAC unit can be installed on various roofs, but the installation costs increase and installation time is extended
Solution Approach 1:
The base incorporates multiple pre-configured openings that can directly interface with different roof curb designs, eliminating the need for adapter curbs. This universal design reduces installation time by allowing installers to directly connect ducts to the appropriate openings without assembling additional adapter components.
3Adaptability or versatility
If adapter curbs are used to accommodate different roof curb designs, then the HVAC unit can be installed on various roofs, but the overall height of the installation increases
Solution Approach 1:
The base is designed with multiple openings at appropriate heights and positions that can accommodate different roof curb designs without requiring additional adapter curbs. This eliminates the extra height that would be added by adapter curbs, as the base itself is configured to interface directly with various duct configurations at the required heights.
4Adaptability or versatility
If multiple seals are added to accommodate different duct configurations, then proper sealing can be achieved with various roof curbs, but the base complexity increases
Solution Approach 1:
The sealing system is segmented into multiple separate seals (first seal, second seal, third seal, fourth seal), each corresponding to a specific opening. This segmentation allows each seal to be independently configured and installed, simplifying the overall sealing system while maintaining adaptability to different duct configurations.
Solution Approach 2:
The combination of multiple seals working together creates a universal sealing system that can accommodate different duct configurations. Each seal is positioned to work with specific openings, and together they provide comprehensive sealing capability across various roof curb designs without requiring a complex integrated sealing mechanism.
Data Source
AI summary
An adaptable base of the HVAC unit can allow an HVAC unit to align and seal with multiple duct opening configurations. Such opening configurations may be different footprints in different HVAC systems, such as may be employed for example in different roof curbs of rooftop HVAC units. The adaptable base includes a base plate, a supply air duct opening, a return air duct opening, where there is at least one additional opening for one or both of the supply air opening and the return air duct opening. Each opening has a seal around its perimeter. A seal is also arranged and located on the base plate about a perimeter around the supply air duct opening(s) and the return air duct opening(s). A cover can be connected to close one or more openings that are not being used with the unit.