Deutsch 
English Resideo automatic oil burner control for 1-stage forced-air oil burners up to 30 kg/h oil flow rate. Undervoltage-proof. Monitoring via MZ 770 S or IRD 1010. For burners with oil preheating.
Fully interchangeable with types TF 734, TF 834, TF 834.1, TF 834.2 and TF 874 OE (but not in conjunction with IRD 911).
Note:
If the IRD 911 is installed on the burner, the flame sensor must also be replaced when using the TF 834.3 as a replacement automatic unit! The replacement would be the IRD1010. (Depending on the incidence of light, left, right or axial). Also suitable for Intercal BN10 R, for example. Replacement for Honeywell / Satronic.
Fully interchangeable with types TF 734, TF 834, TF 834.1, TF 834.2 and TF 874 OE (but not in conjunction with IRD 911).
Note:
If the IRD 911 is installed on the burner, the flame sensor must also be replaced when using the TF 834.3 as a replacement automatic unit! The replacement would be the IRD1010. (Depending on the incidence of light, left, right or axial). Also suitable for Intercal BN10 R, for example. Replacement for Honeywell / Satronic.