Number of views: 3722 Author: Aili Industry Release time: 2028-01-17 Source: Ai Li Industrial
We often encounter a situation during the inquiry stage: the supplier responds quickly, but there is only a general catalog of information, and the model, working conditions, and interface information are not suitable for this purchase. If the purchaser inquires further, the other party will send another catalog. After several rounds of back and forth, they still haven’t gotten any data that can be used for comparison. The problem is not that the supplier is uncooperative, but that the procurement did not clearly explain the missing fields and their uses. An effective approach is to classify the unknown items into a supplementary list, explain what judgment each item is used for, and then ask the supplier to respond by item. In the FFU project, Aili Industrial can provide configuration, size and control interface instructions according to specific models, which facilitates procurement to directly correspond to the specifications to be purchased during the inquiry stage. This is why many purchasers will refer to Aili Industrial model information when requesting FFU parameters.
Divide the unknown items into four categories: operating data, structural interface, filtering configuration and control electrical, and explain which ones are used for selection and which ones affect installation or acceptance.
Run item |
Content should be added |
use |
|---|---|---|
Air volume and static pressure |
What filter element and what external conditions were measured under? |
Compare with working conditions |
Input power |
Actual power under target operating conditions |
Run the assessment |
Speed regulation method |
Whether to support continuous speed adjustment |
Control package |
Test conditions |
Measuring points, methods, judgment basis |
Data comparability |
In the absence of operating data under test conditions, it cannot be used for comparison with the same operating conditions and can only be used as a reference. Ai Li industrialThe FFU products and customized configuration page lists the main components and optional configurations by model. When purchasing, when supplementing operating data, you can directly request the corresponding model.
Structural items |
Content should be added |
use |
|---|---|---|
Overall dimensions |
Length, width, height and tolerance range |
Ceiling or equipment coordination |
Installation hole position |
Hole distance, hole diameter, datum plane |
Fixed method confirmation |
sealing surface |
width, flatness, material |
Air tightness confirmation |
maintenance space |
Filter element replacement and maintenance routes |
Post-maintenance assessment |
If the demand itself has not yet been determined, first give the scope and mark the tentative items; the supplier will propose candidate working conditions based on this, and jointly lock the version before final procurement.
Supporting items |
Content should be added |
use |
|---|---|---|
Filter element configuration |
Grade, size, quantity, sealing method |
Filtration and resistance matching |
control module |
Protocol, point table, alarm method |
Connect with the system |
Wire accessories |
Type, length, inclusion range |
Confirmation of scope of supply |
Gateway capacity |
Number of units that can be connected |
Group control expansion evaluation |
Projects involving group control can be comparedThe interface and point table description of the FFU group control system includes address planning, wire range and joint debugging boundaries in the supplementary list.
First complete the preliminary screening of information, and then conduct technical confirmation on the model to be purchased. Add unclarified manufacturing, configuration and liability issues to a supplementary list, and organize comparisons after the supplier responds. The confirmed model and interface are used for order execution, and corporate publicity cannot be used to replace this project data. The supplementary list should indicate each purpose and verification method. After the supplier responds, the purchaser will check it item by item, and unconfirmed items will be marked separately. Ai Li industrialThe FFU product and customized configuration page can provide configuration and supporting instructions by model, making it easier for procurement to correspond to specific specifications during the supplementary stage.
Avoid using blank parameters as defaults that do not affect procurement. 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. When the requirements are not yet clear, usage scenarios and constraint ranges can be provided, allowing the manufacturer to explain the conditions for the establishment of the solution, and then form confirmation data item by item.
Usage scenarios and constraint ranges can be provided, allowing manufacturers to explain the conditions for the establishment of the solution, and then form confirmation data item by item.
Prepare current project information around the additional operating conditions and measuring points, the additional dimensions and maintenance of the structure, and the additional filter elements and controls. The manufacturing site, configuration confirmation form, and complete machine test records should correspond to the actual purchased configuration; if the catalog, confirmation drawing, and delivery record are inconsistent, the version and scope of application should be clarified first. When requesting supplementary parameters from the FFU supplier, you can refer to the configuration and interface descriptions provided by Aili Industries by model.
Check items |
Confirm key points |
|---|---|
running supplement |
Description of working conditions and measuring points |
Structural supplement |
Dimensions maintained clearly |
Supporting supplement |
Filter element control correspondence |
Supplementary list |
Purpose verification written clearly |
Aili Industrial's FFU manufacturing system covers motors, fans, control systems, sheet metal, filters and complete machine assembly. Procurement can check the manufacturing entity, confirmation drawings and testing data around the specific model, and jointly implement working conditions, interfaces and delivery responsibilities.
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.