AIRTEST Falcon Air Duct Test Device
AIRTEST Falcon Air Duct Test Device is a compact and portable test system developed for testing HVAC air ducts under positive or negative pressure, measuring leakage airflow and evaluating duct airtightness performance.
Measurement of Airflow, Duct Pressure and Air Leakage in One System
The variable-frequency fan, differential pressure measurement system, airflow measurement element, control panel and optional smoke generator are combined in one mobile unit. This enables air duct tests to be completed on site more quickly, consistently and repeatably.
Variable Airflow Control
The frequency-converter fan enables controlled adjustment of test pressure and airflow.
Positive and Negative Testing
Airtightness testing can be carried out under positive pressure or vacuum, according to the operating scenario of the duct.
Optional Smoke Test
Leak points can be identified visually with the optional smoke generator.
Mobile and Compact
Its wheeled body makes it easy to move between construction sites, factories and different test points.
What Is an Air Duct Test Device?
An air duct test device is test equipment that determines air leakage through the duct surface by measuring the compensating airflow required to keep the duct system at a specified static pressure.
Once the duct system reaches test pressure, the device measures the quantity of air supplied to or extracted from the duct to maintain constant pressure. The measured airflow, the tested duct surface area and the acceptance criteria of the applicable standard are used to evaluate system airtightness performance.
The tests help verify flange connections, corner joints, covers, damper connections, accessory penetrations and other potential leak points in duct installation.
How Does AIRTEST Falcon Work?
Isolate the Test Area
The duct section to be tested is isolated airtight from other sections with suitable covers and connection components.
Create Test Pressure
The frequency-controlled fan brings the duct to the specified positive or negative test pressure.
Stabilise Pressure
Fan speed is adjusted to keep duct pressure at a stable level throughout the test.
Measure Leakage Airflow
The airflow required to maintain pressure is measured to determine total duct leakage.
Core Test Functions
Enables monitoring of positive or negative static pressure in the tested duct section.
Total leakage airflow is calculated by measuring the compensating air required to maintain duct pressure.
Allows testing of supply ducts and duct systems operating under positive pressure.
Supports airtightness testing of return-air, exhaust and vacuum-operated duct systems.
With the optional smoke generator, leaks at flanges, corners and joints can be identified visually.
The measured leakage rate can be compared with project criteria using duct surface area and test pressure.
AIRTEST Falcon Technical Specifications
| Technical Specification | Value / Configuration | Description |
|---|---|---|
| Product type | Mobile duct airtightness test device | Compact system suitable for field and factory testing. |
| Test method | Positive and negative pressure | Enables testing of supply and return-air ducts. |
| Reference capacity options | 600 m³/h and 900 m³/h | Final capacity must be confirmed according to the Falcon model configuration and fan selection. |
| Fan control | Frequency-converter controlled | Helps adjust test pressure and airflow precisely. |
| Airflow measurement method | Diaphragm differential-pressure measurement | Airflow is determined from the pressure difference across the measurement element. |
| Duct pressure measurement | Differential pressure gauge | Enables continuous monitoring of internal duct test pressure. |
| Leakage-airflow measurement | Low- and high-airflow measurement ranges | A suitable measurement range can be selected for different duct surface areas and leakage levels. |
| Smoke generator | Optional | Helps locate leak points visually. |
| Control structure | Integrated electrical and control panel | Fan control, power supply and measurement components are integrated into one system. |
| Frame construction | Compact wheeled chassis | Provides easy transport on site and within factories. |
| Connection | Flexible air hose | Creates a quick, airtight connection between the device and test duct. |
| Applicable standards | SMACNA, Eurovent 2/2, DIN 24194, DW/144 | The project specification and required current standard must govern the final evaluation. |
System Components
Creates duct pressure and test airflow in a controlled manner.
Creates an airflow-dependent differential pressure, enabling calculation of leakage airflow.
Enable monitoring of static duct pressure and pressure difference at the airflow measurement element.
Combines fan-speed control, on/off operation and electrical protection functions.
Allows rapid connection of the test device to different duct connection points.
Can be integrated as an option to enable visual leak detection.
Supports safe, easy movement of the device around the test area.
Can be used with duct covers, adaptors, pressure hoses and connection equipment.
Air Duct Airtightness Test Standards
| Standard / Method | Purpose of Use | Assessment |
|---|---|---|
| SMACNA | Assessment of leakage classes and test methods for air ducts | Project pressure class and permitted leakage criteria are used as the basis. |
| Eurovent 2/2 | Assessment of leakage limits based on duct pressure and surface area | Leakage airflow is compared with the relevant class curves. |
| DIN 24194 | Air duct airtightness classes and application criteria | The test area and acceptance class are set according to project requirements. |
| DW/144 | Manufacturing and airtightness assessment of metal air ducts | The test pressure appropriate to the duct pressure class is applied. |
Test pressure, airtightness class, acceptance limit and reporting method must be set according to the contract standard, technical specification and consultant approval.
Air Duct Airtightness Test Procedure
The total surface area of the tested duct section is calculated using project data or on-site measurements.
Open ends, grilles, dampers and equipment connections are isolated with suitable test covers.
The Falcon test device is connected to the duct system using a flexible hose and a suitable adaptor.
Fan speed is increased in a controlled manner until the duct reaches the specified test pressure.
Duct pressure, differential pressure and leakage airflow are recorded under stable pressure conditions.
Measured values are compared with the permitted limit for the duct surface area and applicable airtightness class.
Applications
Advantages of AIRTEST Falcon
Test and Application Note
Before air duct airtightness testing, the test pressure, duct airtightness class, duct surface area to be tested, maximum permitted leakage airflow and test direction must be determined according to the project specification.
Device capacity must suit the surface area and expected leakage quantity of the tested duct section. Very large duct sections, high test pressures or high leakage quantities may require a higher-capacity fan and measurement system.
Final technical values, measurement ranges, calibration method, electrical supply and accessory scope must be confirmed according to the AIRTEST Falcon production configuration.
Get Technical Support for an Air Duct Test Device
Air duct airtightness test system selection should be based on test pressure, duct surface area, airtightness class and expected leakage airflow.
Contact us for information about the AIRTEST Falcon device, test accessories, training, calibration and technical-support solutions for air duct airtightness tests under SMACNA, Eurovent, DIN and DW/144.
