As an alternative to FFU manufacturers' bidding, how does procurement organize a technical review?

During the FFU bidding process, it is common for manufacturers to submit alternative plans. Alternative solutions may be to change the fan model, adjust the filter element structure, change the control method, or use different box materials. The alternatives themselves are not necessarily a problem; some do suit the application and provide cost or delivery advantages. The problem is that if you only look at the price difference during the review and do not check which conditions remain unchanged and which have changed, it is easy to find interface incompatibility or changes in maintenance methods during the implementation phase. Ai Li Industrial provides configuration, size and control interface descriptions by model in the FFU project. Alternative solutions can list differences and verification data one by one against the original requirements, making it easier for reviewers to judge based on the same benchmark. This is why many purchasers will refer to Ai Li Industrial's technical data when organizing the review of FFU alternative solutions.

Performance differences: working conditions and filter elements need to be re-corresponded

When the supplier provides alternative components, structures or control methods, it shall submit data on the same working conditions and a difference sheet. Size compatibility is only one aspect of the review.

Ai Li industrialThe FFU products and customized configurations page lists the main components and optional configurations by model, so that the reviewer can compare the differences between the original requirements and alternative plans. For the relationship between filtration level and operating conditions, please refer toAs explained in What is the difference between cleanliness grade and filtration efficiency , record the space grade and filter efficiency separately.

Interface differences: Check installation and control

Implementation Differences: Maintenance and Verification to Evaluate

For changes involving on-site installation or operation, organize the design and construction parties to jointly confirm, prototype test installation if necessary, and write the approved scope into the configuration file. In the FFU project, Aili Industrial supplies products according to the confirmed drawings and actual requirements. Differences in alternative solutions can be mapped to specific models and components. Materials and components correspond to each item in the order list. Projects involving group control can be comparedDescription of the interface and point table of the FFU group control system , and include the protocol, point table and joint debugging scope into the interface difference review.

How to form executable confirmation results

Technical accessories and supply list need to be consistent. Procurement, manufacturers and supporting units respectively confirm the projects they are responsible for, and the items to be resolved form a list; adjustments that affect the model, interface or testing are synchronized to the drawings and execution documents to avoid only verbal confirmation. Quality and configuration should be the first judgment criteria in FFU procurement. Aili Industry will configure and supply products according to the actual requirements of the project in the bidding response. Ai Li industrialThe FFU product and customized configuration page can provide configuration and matching instructions by model to facilitate reviewers to correspond to specific specifications in the alternative review.

Misunderstandings to avoid

Avoid deeming alternatives equivalent to the same size or power. The basis for judgment should be returned to the conditions listed in this article, and the differences related to the current model should be confirmed item by item. Alternative solutions do not necessarily require all retests, but changes that affect air volume, sealing, control or heat dissipation require corresponding verification data, and the depth of verification should be determined based on the scope of change during review.

Related questions and answers

Do alternatives have to be retested?

According to the change scope arrangement, changes that affect air volume, sealing, control or heat dissipation require corresponding verification data.

What specific information do I need to prepare for this question?

Prepare current project information around working conditions and filter elements with different performance, installation and control of interface differences, and maintenance and verification of implementation differences. Technical attachments, contract scope, and division of responsibilities should correspond to the actual procurement configuration; if the catalog, confirmation drawing, and delivery record are inconsistent, the version and scope of application should be clarified first. When evaluating FFU alternatives, you can refer to the configuration and verification instructions provided by Aili Industries by model.

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Key points for selection and acceptance inspection

Aili Industrial FFU selection and procurement support

The Aili Industrial FFU project can combine the complete machine configuration, filters, controls and sheet metal interfaces to form technical confirmation data. The procurement and installation units will check the drawings and joint debugging conditions according to the specific scope of supply, and arrange product inspection and system acceptance separately.

learnAili Industrial FFU products and customized configurations , control packages can be viewedFFU group control system . Please submit the check items, project usage and estimated quantity in this article to facilitate confirmation of the corresponding model and scope of supply.