What parameters should be considered for FFU powered by 220V? Air volume, electrical and control cannot leak
Direct answer: When selecting FFU for a 220V project, you should also check the rated voltage and frequency, power and current, air volume and static pressure under design conditions, filter resistance, speed adjustment range, communication interface and installation space. For multiple devices, power supply and control zones, address planning, working and duty speeds, and capacity expansion needs must also be determined in advance.
'220V power supply' only describes the power supply conditions and cannot be inferred based on it.FFU air supply performance. For the same 220V equipment, the actual air volume and power consumption may be different due to different motors, filters, operating gears and cabinet structures. When purchasing, it is best to compare air performance and electrical control parameters under the same working conditions.
parameter group |
Things to check |
Why watch |
power supply |
Voltage, frequency, rated current and protection method required by the product |
Confirm that it matches the on-site power supply conditions |
Air performance |
The air volume at the design gear, the static pressure corresponding to the target air volume, and the uniformity of wind speed |
Determine whether the actual air supply meets the process requirements |
Filtration system |
HEPA/ULPA filter efficiency, resistance at design air volume, sealing |
Filters affect FFU operating point |
running cost |
Power consumption and noise of commonly used gears |
Easily evaluate long-term operating performance |
control |
Speed regulation mode, communication interface, status feedback and address setting |
Determine whether single control or batch group control can be implemented |
Installation and maintenance |
Ceiling size, wiring location, filter replacement space |
Avoid equipment that can be installed but difficult to maintain |
Two parameters that are easily confused
The rated voltage is not the design air volume. The product can operate normally after being connected to 220V. It still needs to be confirmed whether it can achieve the target air volume under the specified filter of the assembly project, the design gear and the actual resistance conditions. The nominal maximum air volume cannot be directly used as the project design air volume.
FFU static pressure is not room pressure difference. The former is used to judge the FFU's ability to overcome the filter and related resistance; the latter depends on the operating status of the overall air supply, return air, exhaust and door of the clean room. Projects should separately propose requirements and test methods.
Batch 220V projects need to be planned and controlled in advance
When there are a large number of FFUs, the power supply and control areas should be divided according to process and operational requirements, and the address, working speed, duty speed, communication interface and future expansion location of each device should be clarified. When unified speed regulation or status monitoring is required, it can be combined withFFU group control system planning controller and communication architecture.
The working and duty speeds cannot be accepted only according to the set values on the control panel. Prototype and on-site testing should confirm the actual air volume in the two states respectively; whether the duty mode meets the cleanliness requirements should be determined by the verification results under project working conditions.
Aili Industrial can match the fan, motor and complete machine solution based on 220V power supply conditions, cleanliness goals, filter configuration, installation dimensions and control requirements. For batch projects, it is recommended to first confirm the electrical parameters of the prototype and the performance of each operating gear, and then write the configuration, test conditions and delivery requirements into the technical agreement. Specific performance is subject to test results under agreed working conditions.
Before enquiring, it is recommended to prepare: on-site power supply conditions, floor plan and ceiling diagrams, target air volume in each area, filtration requirements, estimated number of FFU, control partitions, and usage requirements for working and duty modes.
