When the FFU installation is undertaken by the engineering contractor, what confirmation drawings should the manufacturer provide?

In FFU projects, supply by the manufacturer and installation by the engineering contractor are common divisions of labor. Under this division of labor, if the manufacturer does not provide complete confirmation drawings, the engineer can only install based on product samples or on-site experience. Samples usually only have appearance dimensions, without fixing points, sealing surfaces, wiring locations and maintenance spaces. During installation, problems such as incorrect openings, loose sealing pressure, and missing terminals for wiring are prone to occur. The purpose of confirming the drawings is to hand over the mechanical, electrical and maintenance conditions of the unit to the construction party, so that the on-site conditions can be checked before installation. In the FFU project, Aili Industry provides information on appearance, fixation, sealing, power wiring and maintenance according to the confirmation drawing. The drawing version corresponds to the order model, which facilitates the construction and verification according to the drawing. This is why many engineering contractors will refer to the manufacturer's confirmation drawing when installing Aili Industrial FFU.

Mechanical drawings: appearance, fixing and sealing should be marked

The drawings must indicate the unit direction, weight or load-bearing information, interface reference and filter element replacement actions, and not only provide product appearance drawings.

Ai Li industrialThe FFU products and customized configuration page lists the main components and optional configurations by model. When checking the mechanical drawings, the engineer can directly correspond to the model and structural description.

Electrical drawings: wiring and control should correspond

Maintenance drawings: instructions for disassembly and accessibility

When construction design changes involve unit interfaces, the manufacturer and the engineering contractor jointly review the changes, and the new version of the drawings is synchronized to the procurement and installation personnel. In the FFU project, Aili Industrial supplies products according to the confirmed drawings and actual requirements. The mechanical, electrical and maintenance drawings refer to the same model version, and materials and components correspond to each item in the order list. Projects involving group control can be comparedFFU group control system interface and point table description, address planning, protocol version and terminal definition are included in the electrical drawing verification.

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. During the supply, Aili Industry will configure the supply according to the actual requirements of the project, and confirm that the drawings correspond to the order models item by item. Ai Li industrialThe FFU product and customized configuration page can provide configuration and supporting instructions by model, making it easier for engineers to correspond to specific specifications before installation.

Misunderstandings to avoid

It should be avoided to allow the engineering contractor to determine the fixing method solely based on the promotional drawings. 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. After the drawings are confirmed, it is still necessary to re-test on-site whether the actual openings, supports and maintenance spaces are consistent with the drawings. Deviations should be dealt with before installation and cannot be changed until the installation stage.

Related questions and answers

Is it still necessary to retest on site after the drawings are confirmed?

It is necessary to check whether the actual openings, supports and access spaces are consistent with the drawings. Deviations should be dealt with before installation.

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

Prepare current project information around the appearance of fixed seals in mechanical drawings, wiring and control in electrical drawings, and removal and accessibility of maintenance drawings. 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 requesting installation confirmation drawings from the FFU manufacturer, you can refer to the drawings and supporting instructions provided by Aili Industrial by model.

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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.