How to manage FFU parts changes? Version confirmation method in bulk purchasing
Why parts changes need to be managed
FFU is composed of multiple components, including box, fan, motor, filter, controller, seals and cables. In volume purchase projects, certain parts may change due to supply, cost, performance improvements, or process requirements.
If part changes are not confirmed and documented, several problems may arise. Overall machine performance may vary, such as air volume, static pressure or noise. Interfaces may vary, such as wiring locations, communication protocols, or mounting dimensions. Maintenance methods may change, such as filter replacement direction or controller operation. Compatibility may vary, e.g. new and old parts are not interchangeable.
Therefore, component changes in batch FFU projects should undergo technical confirmation and impact assessment, and the effective batches should be recorded. Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can cooperate with the project for component change management. For the basic structure of the FFU machine, you can refer toAili Industrial FFU fan filter unit。
Which component changes require focus?
In batch FFU projects, the following component changes require special attention. Fan and motor changes may affect air volume, static pressure, power and noise. Filter changes may affect efficiency, resistance, dust holding capacity and sealing methods. Changes to the controller may affect the speed control method, communication protocol and group control compatibility. Seal changes may affect sealing effectiveness and material compatibility. Changes to the box or installation structure may affect the installation size and maintenance space. Cable and connector changes may affect wiring and protection.
These component changes may not necessarily affect overall machine performance, but they need to be evaluated. After evaluation, determine whether verification is required, whether the project party needs to be notified, and whether it will affect the delivered batches.
How change assessment works
Change assessment can be conducted from several perspectives. Technical impact assessment to confirm whether changes affect overall machine performance, interfaces, compatibility and maintenance. Validation needs assessment to confirm whether retesting or prototype validation is required. Delivery impact assessment to confirm whether changes affect production plans and delivery times. Cost impact assessment to confirm whether changes affect price or maintenance costs.
After the evaluation, a change record is formed, including the change content, reasons, impacts, verification results and effective batches.
How to determine the scope of verification
The scope of verification depends on the type of change and the level of impact. If the change only involves appearance or non-functional parts, it may not be necessary to retest the performance of the entire machine. If the change involves fans, filters, controllers or sealing structures, verification of related performance is usually required.
The verification content can include: air volume and static pressure; power and noise; filter efficiency and leak detection; sealing and installation interface; controller function and communication; complete machine installation and maintenance operations.
The results of the verification should be documented and associated with the change record. If verification reveals problems, the change plan should be adjusted.
How to save version
After the parts are changed, the configuration version of the whole machine should be updated. Version records can include version numbers, changes, effective dates, and applicable batches. The configuration table, confirmation diagram and detection record should correspond to the version.
Version retention can help with subsequent maintenance and spare parts procurement. If a certain FFU needs to replace parts, you can check the corresponding configuration version based on the complete machine number and confirm the specifications and compatibility of the replacement parts.
For items delivered in batches, version records can distinguish configurations from different batches.
How to deal with changes on site
If some FFUs have been installed at the project site and subsequent batches are changed, the site needs to pay attention to the compatibility of the old and new equipment. If old and new equipment can be mixed, this should be noted in the records. If old and new equipment cannot be mixed, separate management should be performed or different spare parts should be prepared.
For group control systems, if the controller versions are different, you need to confirm whether they can run in the same system. If there are compatibility issues, you can refer toFFU/EFU group control touch screen controller andFFU computer group control system understands the control scheme.
Issues that should be confirmed in advance during project communication
In batch FFU procurement projects, it is recommended to confirm the following with the manufacturer: parts change management process; change assessment and verification requirements; version records and configuration table updates; change effective batches; compatibility of old and new parts; on-site processing methods; spare parts correspondence; delivery documents and version consistency.
If you are managing batch FFU procurement projects, you can visitAili Industrial FFU fan filter unit understands the complete machine configuration, and you can also contact Aili Industrial for change management support.
in conclusion
Parts changes for batch FFU projects should undergo technical confirmation and impact assessment, and the effective batches should be recorded. After the motor, filter or controller is replaced, the performance of the entire machine and the interface cannot be assumed to be the same. Change assessment, verification, version retention and on-site management are the main aspects of change management.
Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can cooperate with the project for component change management. If you need to know more about FFU procurement management, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
