Cooling and Heating Conversion Control for Indoor Unit Addressing
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Solution Overview
Problem
Conventional multi-air conditioner systems require manual input of indoor unit addresses, leading to potential errors and malfunctions, as installation engineers may incorrectly identify which indoor units are connected to each branch hole, resulting in improper air conditioning operations.
Innovation Solution
A cooling and heating conversion device with a processor that automatically determines and controls the connection of refrigerants to indoor units based on input information, using valves and ports to select the appropriate refrigerants and store address information, thereby reducing manual errors and ensuring accurate operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual input of indoor unit addresses is used, then installation engineers can configure the system, but errors occur due to false inputting of addresses
Solution Approach 1:
The system automatically detects and configures indoor unit addresses through self-diagnosis functions, eliminating the need for manual input by installation engineers. The outdoor unit and cooling/heating conversion device automatically identify connected indoor units and set their addresses, preventing human error while maintaining ease of system configuration.
Solution Approach 2:
The system uses feedback mechanisms where the outdoor unit and cooling/heating conversion device receive responses from indoor units during the self-diagnosis process. This feedback loop allows automatic verification and confirmation of indoor unit connections and addresses, ensuring accurate configuration without manual intervention.
2Device complexity
If one indoor unit is connected to a single branch hole, then simple control is achieved, but a plurality of indoor units cannot be connected to a single branch hole
Solution Approach 1:
The cooling/heating conversion device and outdoor unit are designed with multi-functional capabilities to handle both simple one-to-one connections and complex many-to-one connections. The system can dynamically adapt its control logic based on the actual number of indoor units connected to each branch hole, providing universal functionality that covers both simple and complex configurations without requiring different hardware systems.
Solution Approach 2:
The system employs dynamic control where the outdoor unit and cooling/heating conversion device adjust their operation based on real-time detection of indoor unit connections. The control strategy changes dynamically according to whether one or multiple indoor units are connected to a branch hole, allowing the system to optimize performance for each configuration scenario.
Data Source
AI summary
According to an embodiment of the present disclosure a cooling and heating system includes a plurality of branch holes configured to provide different refrigerants to at least one indoor units. The device also includes a plurality of valves configured to respectively correspond to the plurality of branch holes wherein each valve is configured to select a refrigerant to be provided to at least one indoor unit. The different refrigerants are provided from an outdoor unit. The device further includes a plurality of ports configured to respectively correspond to the plurality of branch holes. The device also includes a processor configured to, in response to an input through the plurality of ports that include an indoor unit information including refrigerant information, control each of the plurality of valves to provide refrigerant corresponding to the refrigerant information through a branch hole corresponding to a port that the refrigerant information is input.