Siemens LOA 24.171 B27 (LOA 24) burner control unit

LOA… electromechanical burner control. LOA burner controls are used to start and control one- or two-stage liquid fuel burners with intermittent operation. Suitable for burners with a fuel throughput of up to 30 kg/h.

Yellow flame control is performed by a photoresistive sensor QRB…, blue flame control is performed by a sensor QRC.

• undervoltage detection
• shunt contact for fuel preheater (not included in model LOA28.173A27)
• Special design for waste incineration plants and steam generators