HVAC Fan Array Quick-Connect Wiring for Simpler ECM Installation
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Solution Overview
Problem
ECM fan arrays require complex wiring systems, making installation challenging for electricians unfamiliar with them, leading to logistical issues and increased costs due to the need for individual wiring connections from each fan to a control panel, which is typically placed externally.
Innovation Solution
A quick connect box system that pre-determines and pre-engineers the wiring between ECM fans and a control panel, allowing for efficient installation by linking the control panel to the quick connect box, which can be placed internally or externally, reducing redundancy and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual wiring connections are provided from each fan to a control panel, then reliable electrical connection is achieved, but device complexity and installation difficulty increase significantly
Solution Approach 1:
The patent combines multiple individual wiring connections into a single bundled wiring system that connects the entire fan array to the control panel, eliminating the need for separate connections from each fan while maintaining reliable electrical connectivity across all fans
Solution Approach 2:
The wiring system is segmented into modular components including a control panel, bundled wires with connectors, and standardized connection points at each fan, allowing for simplified assembly and maintenance while reducing overall installation complexity
2Ease of manufacture
If a control panel is placed on the exterior of the HVAC unit, then wiring installation is simplified, but maintenance accessibility is reduced
Solution Approach 1:
The control panel is designed with differentiated connection points - simplified external wiring connections for installation ease, while maintaining accessible service ports and connection interfaces on the panel itself for easy maintenance and repair access
3Use of energy by moving object
If ECM fans are used instead of AC motor fans, then energy efficiency is improved, but wiring system complexity increases
Solution Approach 1:
The control panel and wiring system are designed to provide universal control capabilities for ECM fans, integrating multiple functions (power distribution, control signaling, monitoring) into a single standardized system that simplifies installation despite the advanced functionality required for ECM operation
Data Source
AI summary
The present invention is an HVAC fan array wiring system that provides a quick connect box that is provided within the air stream of an HVAC air handler. Because the wiring for each fan within the fan array is to be connected to the quick connect box, the wiring materials and placement of the wiring can be predetermined at the time the fan array is designed. Accordingly, the novel wiring system and quick connect box reduces redundancies in manufacturing and installation of the fan array. Furthermore, the quick connect box and wiring system allows for easy installation of the HVAC fan array at a job site and improves a customer's experience with the control panel. This is primarily because, with the use of the claimed invention, an electrician need only link a main control and power line to the quick connect box and therefore, can install the control panel in a location that provides ease of access to the customer.