Ventilatore tangenziale COPREL TFR 45-300/30-1AIC HT 230V 38W

Tangential fan COPREL TFR 45-300/30-1AIC HT 230V 38W. Catalogue article 313.145.003-2, manufacturer code 313.145.003. This is a tangential fan used in burners and boilers to supply combustion air and, in room-sealed appliances, to drive flue gases out. In modulating premix burners, the fan speed determines the firing rate; the control varies the speed and the gas valve follows. The fan is therefore a key component in the air-gas ratio regulation. When selecting such a fan, the main parameters are the required airflow and pressure, the outlet direction and orientation, the impeller diameter, the voltage and control mode (mains, PWM, or 0-10 V), and the flange pattern to match the existing mounting. The article is specified as 230V and 38W, indicating a mains-voltage fan with a given power draw, but further details such as airflow or pressure values are not listed in the available data and must be verified against the burner or boiler documentation. Common failure modes for fans of this type include worn bearings, imbalance caused by deposits on the impeller, a failed capacitor (if the fan uses a permanent-split capacitor motor), and speed feedback errors that the control interprets as an airflow fault. When replacing, ensure the mounting flange, outlet position, and electrical connection match the original; a mismatch in orientation may require additional ducting or affect the air path. Also confirm that the replacement fan is intended for use at the same voltage and, if speed control is used, that its feedback signal is compatible with the burner control.