EN
Ventilation Installation Inspection
Periodic inspection of ventilation and HVAC systems: fire damper tests, airflow measurement, filter hygiene and fan integrity by authorised engineers, reported.
Ventilation installation periodic inspection verifies at least annually, with measurement and testing, the duct, fan, damper, diffuser and filter groups of comfort and industrial HVAC systems across three dimensions: fire safety function (smoke control, damper closure), energy performance and hygiene (indoor air quality). In a fire, ventilation is critical life-line equipment for exhausting smoke and stopping its spread into adjacent compartments.
Inspection Items
- Fire damper: Closure function of thermal (fusible link) and automatic (motorised) dampers, leakage class (EN 1366-2 / EN 1751) and feedback signal; position verification of smoke control dampers (RSDF).
- Airflow and pressure: Grille-diffuser velocity and flow measurement, comparison of exhaust-supply fan performance against design, duct pressure drop control.
- Fan and drive: Vibration, bearing temperature, belt tension, safety switch; motor current and insulation measurement.
- Hygiene: Filter end-of-life/delta-P status,AHU interior soiling-moisture traces, coil cleaning; indoor air quality measurement at required points.
- Automation: Frost-free operation, CO₂ demand ventilation, functional test of the fan-damper scenario with the fire signal (closure / purge position).
Legislation and Standards
The maintenance-test duty takes shape through Law No. 6331, the Regulation on Protection Against Fire in Buildings and indoor occupational exposure limit legislation. Technical references: TS EN 15650 (fire dampers) and EN 1366-2 for dampers, TS EN 1507/12237 for ductwork, EN 12599 for performance measurement and ISO 16890 for filter classes. Running the fire scenario test integrated with the detection system is the holistic verification approach foreseen by the regulation.
Risks and Operator Recommendations
The leading critical finding is a damper motor failing to close after a fire alarm or a broken leakage seal — the flooding of the adjacent compartment with smoke results from this gap. Dirty filters and clogged coils create CO₂ accumulation and energy waste through flow loss, while grease-laden kitchen ducts raise fire risk — grease filter cleaning must be put on a period. Missing fire-stop mastics at duct penetrations are noted within compartmentation integrity. Proving that smoke extraction fans (jet fans, stack fans) run in fire mode is a mandatory page of the annual report.
Outcome
At the end of the trial, a signed report with the compliance table and proposals is issued; it lists every damper address with closure time, fan performance values and filter change proposals line by line — this detail is the section that proves system traceability in an audit. Ventilation controls are in our Periodic Inspection of Installations group. For damper-automation integration see Fire Detection and Alarm Systems and for automation investments Automation Systems; contact us for a programme.
FAQ on Ventilation Installation Inspection
Air handling units, fans (supply-exhaust-relief), air ducts-grilles-diffusers, fire-gas dampers, air curtains-humidity-fresh air units and automation-readout systems. It looks on three axes: performance (air flow-pressure-velocity), hygiene (filter-duct inner dirt-condensation) and safety (fire scenario-smoke control-integration). Environment type (hospital, food, chemical, mall) deepens the requirements.
Flow by anemometer-hood balance, static-differential pressure, grille-based velocity-temperature-humidity and pressure balance (room staged pressure regime), filter differential pressure-saturation control; duct internal visual-camera and cleaning assessment, condensation-insulation-drip detection; damper-actuator-function and fuse (fusible link 70/120 °C) trials, scenario: detection damper close-exhaust start-zone relief. Yearly control; six-monthly filter-duct review added in heavy-dusty-food environments.
Accumulated duct dust-grease (fire load in kitchen exhaust), condensate-water pooling-mould odour, torn-gasket-leaking duct joints (energy and cross contamination), clogged-saturated filter (air change drops and CO2 rises), coil without humidity control (Legionella risk window), blocked fresh air louvre. Indoor air quality (CO2, particle, VOC) measurements are compared with ASHRAE practice thresholds; on the food-hospital side ISO 14644 clean room classification is tracked.
The control is reported with zone-based flow-pressure tables, filter-duct-damper findings, photo-camera records and scenario minutes; energy-hygiene-safety findings are prioritised separately (failed fire damper urgent, filter change scheduled). Duct cleaning-filter-actuator replacement periods tie to the calendar and automation alarm thresholds are re-set. The report becomes the comparison baseline of the next year as input of the installation periodic inspection regime.