b'TECHNICAL DATA EN3 .3Electrical diagramCONTROL BOX EBR-M1 20-30 TVB4 S3 T2 T1 N L1CONNECTION KITB4 S3 T2 T1 N L1MVMYVg BL3 N L2 L1L3 N L2 L1SWITCH LIVEBURNER LOCK OUTEARTHNEUTRALPERMANENT LIVE (230V-50Hz)BPhoto-resistor TVIgnition transformerMVFan motor YVg Oil solenoid valveFig. 9 17/64'