How to confirm the first article of batch FFU? Size, performance and control checked in one go
Why is first article confirmation important?
In a batch FFU project, if you wait until all equipment is produced and then inspect it, once problems are discovered, the cost of adjustment will be high. First article confirmation is to conduct a comprehensive check on the first or first batch of FFU before mass production to confirm that the design, configuration and interface meet the requirements, and then solidify the production.
First article confirmation not only checks dimensions, but also air performance, control functions, maintenance operations and delivery documentation. Through first-piece confirmation, problems such as inconsistencies between drawings and actual objects, filter resistance deviation, communication incompatibility, or insufficient replacement space can be discovered in advance.
Therefore, first article confirmation is an important step in batch FFU projects. Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can cooperate with the project to confirm the first piece. For the basic structure of the FFU machine, you can refer toAili Industrial FFU fan filter unit。
How to check size and interface
Dimensions and interfaces are the basis for first article confirmation. The check includes: overall machine dimensions; installation dimensions and hole positions; air inlet and outlet locations; filter installation dimensions; electrical wiring locations; controller installation locations; cable outlet locations; and maintenance space.
When checking, you can use drawings and actual objects to compare, and conduct trial installation if necessary. If the FFU needs to be installed on the ceiling, equipment or installation frame, a trial installation can confirm whether the interfaces match.
For customized FFU or device-side FFU, size and interface verification are particularly important. Can refer toCustomize the EFU equipment-side fan filter unit to understand the equipment supporting solutions.
How to verify air performance
Air performance verification includes air volume, wind speed, static pressure and noise. Measurements should be carried out under agreed working conditions, and test conditions and results should be recorded. If the project has requirements for wind speed uniformity, multiple measuring points on the wind outlet surface can be measured.
Air volume verification can be compared with the design value to confirm whether it meets the requirements. If the FFU is equipped with a filter, it should be measured with the filter installed. The filter resistance will affect the working point and cannot only be measured on the bare fan.
For projects that require high-efficiency filters, you can refer toFFU is equipped with ULPA ultra-high efficiency filter to understand the interface requirements between the filter and the whole machine.
How to confirm control function
Confirmation of control functions includes speed regulation, communication, group control and parameter settings. Confirm whether the controller can regulate speed normally, whether the communication interface is normal, and whether the group control system can identify and control the FFU. If the project has zoning control or constant air volume requirements, it should be confirmed whether the function is implemented.
For useFFU/EFU group control touch screen controller orFor FFU computer group control system projects, the first article confirmation should include joint debugging with the group control system.
How to confirm maintenance operations
Maintenance operation verification includes filter replacement, seal inspection, electrical wiring and maintenance space. Confirm whether the filter can be installed and removed normally, whether the seal is good, and whether the pressing mechanism is easy to operate. Confirm whether there is enough space for maintenance and whether special tools are needed.
For the bottom-down FFU, the feasibility of operation from the clean room side should be confirmed. For top-swappable FFU, the mezzanine maintenance conditions should be confirmed. Related structures can be referred toDetachable FFU。
How to check delivery documents
When confirming the first item, you can check whether the delivery documents are complete. Including confirmation drawings, configuration tables, inspection records and usage and maintenance information. Confirm that the document is consistent with the actual object and the version is correct.
Delivery document reconciliation can help subsequent batch deliveries remain consistent.
How to perform batch curing
After the first article is confirmed and passed, the confirmation results should be solidified as the basis for mass production. Includes frozen drawing versions, configuration tables, filter specifications, controller versions and inspection requirements. If problems are found and adjusted during first article confirmation, the file should be updated before mass production.
During the mass production process, random inspections can be carried out according to the first article confirmation standards to ensure consistency.
Issues that should be confirmed in advance during project communication
During the batch FFU first article confirmation stage, it is recommended to confirm the following with the manufacturer: first article confirmation scope and items; size and interface verification methods; air performance test conditions; control function confirmation content; maintenance operation confirmation methods; delivery document verification; batch curing requirements; sampling methods and judgment standards.
If you are planning batch FFU first article confirmation, you can visitAili Industrial FFU fan filter unit to learn about the complete machine configuration, you can also contact Aili Industrial to obtain first article confirmation support.
in conclusion
Batch FFU first article confirmation should cover dimensional interfaces, air performance, control functions, maintenance operations and delivery documents. By only confirming the outer dimensions, problems with filter resistance, communication or replacement paths cannot be discovered in advance. After the first article is confirmed and passed, it should be solidified as the basis for mass production and random inspection should be carried out.
Aili Industrial has complete production capabilities in FFU complete machine manufacturing and can cooperate with the project to confirm the first piece. If you need to know more about FFU batch verification, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
