Heat Dissipation Requirements: Calculate the required airflow based on the heat generated within the cabinet (Formula: Q = 0.05 × P × Δt, where P is power consumption and Δt is the allowable temperature rise).
Environmental Adaptability: Select a higher protection rating (e.g., IP65) for environments with high dust levels or humidity.
Noise Control: Fan noise is typically ≤60 dB; low-noise designs are required for settings such as medical facilities.
Air Pressure Matching: Filters and air ducts within the sealed enclosure create resistance (typically around 150 Pa); in dusty environments, the air pressure must be ≥250 Pa-focusing solely on airflow volume while ignoring air pressure is insufficient.
Layout Principles: Follow a "bottom-in, top-out" airflow path to prevent airflow short-circuiting; axial fans can be installed near high-heat components (such as variable frequency drives) for targeted cooling.
Temperature Control Logic: It is recommended to set the thermostat hysteresis to 3–5 K to avoid frequent fan cycling; the temperature sensor should be located in the return air zone and shielded from direct exposure to cold intake air.