HVAC Transition Access Panels for Evaporator Coil Maintenance

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Solution Overview

Problem

Accessing and maintaining evaporator coils in air conditioning systems is difficult, requiring partial disassembly and reassembly, leading to high costs and premature replacement of coils or entire units.

Innovation Solution

A transition system with removable access panels allows in-situ access to evaporator coils and heat exchanging components, featuring a housing unit with a removable access door that securely aligns with the air handling unit, enabling easy maintenance and reducing the need for full system disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If traditional air conditioning systems are used without removable access panels, then the system structure remains simple and sealed, but accessing evaporator coils requires partial disassembly and reassembly which consumes vast majority of time

Engineering Contradiction:
Improvemaintenance timeVSAvoidsystem structure
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The transition housing is segmented into removable access panels that can be detached to provide direct access to evaporator coils. This segmentation allows maintenance personnel to access internal components without disassembling the entire system, thereby significantly reducing maintenance time while adding minimal structural complexity through the modular panel design.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If evaporator coils are accessed through traditional sealed systems, then system integrity is maintained, but reaching malfunctioning components requires partial disassembly and reassembly

Engineering Contradiction:
Improveaccess to componentsVSAvoidtransition structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Removable access panels are pre-installed on the transition housing during system assembly, creating predetermined access points to evaporator coils. This preliminary action ensures that maintenance personnel can easily access components when needed without requiring ad-hoc disassembly, while the pre-integrated panels add minimal structural complexity to the overall system.

Inventive Principle:
Principle #10Preliminary action

3Ease of repair

If traditional air conditioning systems without removable panels are used, then manufacturing and installation are simpler, but maintenance costs increase leading to premature replacement of coils or entire units

Engineering Contradiction:
Improvecoil maintenanceVSAvoidaccess panel system
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The transition housing incorporates segmented removable access panels that enable easy access to evaporator coils for maintenance and repair. This segmentation allows technicians to service individual components without replacing entire units, thereby improving ease of repair and reducing maintenance costs while adding only minimal structural complexity through the modular panel design.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10151507B2Removable access panels and transitions in HVAC systems
Publication Date: 2018.12.11 NRCS IP INTERESTS LLC
  • US10151507B2 patent drawing
  • US10151507B2 patent drawing
  • US10151507B2 patent drawing

AI summary

Methods and systems are disclosed with regard to a transition used in air conditioning systems. One embodiment may include an AHU, which may include a furnace, a motor and a blower. Further, the system may include a transition having at least one removable access panel, wherein the transition has a first opened end and a second opened end located opposite of the first opened end, wherein the first opened end securably aligns with an opened end of the furnace. Further still, the system may include a housing unit housing evaporator coils, wherein the second opened end securably aligns with one opened end of the box, further wherein the evaporator coils and the heat exchanging components of the AHU are accessible via the removable access panel.