When transforming traditional AC FFU into an EC solution, what should be assessed before construction?

Direct answer: First confirm the actual air volume, filter resistance and power consumption baseline of the existing AC FFU, and then check whether the EC solution can adapt to the original box, filter, power supply and control system. Downtime arrangements for batch replacement, on-site commissioning and post-modification acceptance will also be assessed. The efficiency advantage of the EC motor itself can only be converted into project results when the original cleanliness and air supply requirements are met.

Changing AC to EC is not a simple matter of replacing a motor. The fan impeller, box air flow path, filter and control method will all affect the FFU operating point. If only the motor parameters are modified, the electrical performance, air volume or control function of the whole machine may not meet the requirements.

Decide first: Keep the original cabinet, or replace the entire machine?

When retaining the original box, check the box size, installation interface, impeller and motor fixing methods, air inlet and return conditions, filter sealing and maintenance space. If the original structure is difficult to adapt to the EC fan and control components, it may be easier to replace the whole machine to form a testable unified configuration.

select newWhen using the EC/DC FFU solution , you also need to check the ceiling module, installation height, power interface and filter replacement direction. Both paths should be determined based on the verification results of prototypes or pilot areas, and cannot just compare the purchase price of a single unit.

The original system must leave a set of comparable data

Before the transformation, the number of FFU, operating gear, target and actual air volume, filter model and pressure difference, power consumption, noise and cleanliness under normal production and on-duty conditions should be recorded. In particular, it is necessary to distinguish the measurement boundary of power consumption data, whether it is a single FFU, a control partition, or a power supply loop containing other equipment.

Use the same boundary comparison after modification and record changes in run time, production load and filter status. If the working conditions before and after are different, reasonable adjustments should be made; the IPMVP measurement and verification principle also emphasizes the comparability of baseline and post-renovation conditions. Just looking at the power at a certain moment before and after the transformation cannot represent the energy-saving effect of the actual operating cycle.

The EC solution must pass three adaptation checks at the same time

Air Performance: Assembly Project SpecifiedAfter HEPA or ULPA filter , EC FFU should reach the target air volume at each planned gear, and check the corresponding static pressure and wind speed uniformity. When replacing the filter grade, recheck the fan operating point.

Electrical control: Check the on-site voltage, frequency, power supply circuit, speed control interface, communication method, address planning and fault feedback. Projects that require partitioning or centralized management should be evaluated simultaneouslyWhether the FFU group control system is compatible with the modified equipment.

On-site implementation: Confirm batch replacement sequence, shutdown window, ceiling disassembly and assembly, wiring and maintenance conditions, and agree on pilot, debugging and on-site acceptance responsibilities.

How can Aili Industrial's full industry chain supporting facilities be used in transformation projects?

Aili Industrial's supporting equipment covers fans and motors, control systems, sheet metal structures, HEPA/ULPA filters and complete machine matching. In the AC to EC project, these links need to be adjusted together: after the motor plan is determined, the impeller and box airflow, filter resistance, control interface and complete machine test data must be verified. For standard suspended ceilings or non-standard projects with limited space, the configuration can be confirmed through prototypes first, and then batch transformation of partitions can be carried out.

The acceptance of the transformation should also look at the changes in electricity consumption under comparable working conditions and whether the on-site air volume, air flow and cleanliness meet the standards . Specific plans, energy-saving results and delivery requirements are subject to the project technical agreement and actual testing.