Vapor Compression Sensor Wiring via Expected Response Matching
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Solution Overview
Problem
Existing methods for determining wire connections in vapor compression systems, such as refrigeration, heat pump, or air conditioning systems, are cumbersome and require reconnection of wires to ensure correct wiring, often leading to incorrect assignment of measurement channels and operational inefficiencies.
Innovation Solution
A method that involves changing operational settings in a vapor compression system, monitoring variable values measured by sensor devices, comparing these values to expected behaviors, and determining wire connections without rewiring, allowing for easy installation and correct wiring without reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing methods for determining wire connections are used, then wire connections can be determined, but reconnection of wires is required and installation is cumbersome
Solution Approach 1:
The control unit stores expected behavior patterns for sensor variables in advance, corresponding to different operational settings. During installation, the system automatically compares measured variable values against these pre-stored patterns to determine wire connections, eliminating the need for manual wire reconnection and simplifying the installation process
2Measurement precision
If manual wire connection determination methods are used, then wire connections can be identified, but incorrect assignment of measurement channels occurs and requires reconnection
Solution Approach 1:
The system automatically compares measured variable values from sensor devices against expected behavior patterns stored in the control unit. Based on this comparison, the system automatically determines correct wire connections and assigns measurement channels accurately, eliminating incorrect assignments and the need for time-consuming reconnection operations
3Productivity
If sequential determination of wire connections is used, then connections can be determined, but the process is time-consuming
Solution Approach 1:
The system changes operational settings and monitors variable values from multiple sensor devices simultaneously, comparing all measurements against expected behavior patterns in parallel. This allows simultaneous determination of multiple wire connections rather than sequential determination, significantly reducing installation time and improving productivity
Data Source
AI summary
A method for determining wire connections in a vapor compression system (1) is disclosed. The vapor compression system comprises a compressor, a condenser, an expansion device (2) and an evaporator (3) being fluidly interconnected in a refrigerant path, and two or more sensor devices (7, 8, 9, 10, 11) arranged for measuring variables which are relevant for the operation of the vapor compression system (1). The method comprises the steps of changing an operational setting, e.g. an opening degree of the expansion device (2) for the vapor compression system (1), monitoring variable values, such as temperatures, being measured by at least two sensor devices (7, 8, 9, 10, 11), e.g. arranged at various positions of the vapor compression system (1), in response to said changed operational setting, comparing the measured variable values to expected behavior of at least one variable measured by a sensor device (7, 8, 9, 10, 11) in response to said changed operational setting, and based on the comparing step, determining at least one wire connection of the vapour compression system (1). The method allows correct wire connections to be established without any special effort from the installing personnel, and without requiring rewiring of the system.