| TTO872/876 - Oil Burner Safety Control
For burners on hot-air heaters, as well as burners above 30 kg/h in intermittent operation, 1- or 2-stage.
Flame detectors:
- Photoresistor MZ 770 S
- Flicker detector IRD 911 / 1010
If the infrared flicker detector IRD 911 or 1010 is utilized as flame monitor, even red hot combustion chamber walls cannot affect the safe operation, since this sensor exclusively responds to the flame.
The oil burner automatic safety control TTO876 is fully interchangeable with the type TTO836. The automatic control TTO872 is – with the exception of the flame detector compatible with type TTO810. When replacing type TTO810, the photo-cell FZ 711 has also got to be replaced by an MZ 770 S.
The different heights are compensated for by mounting the pushbutton extension (art. No. 70601).
Instead of the pushbutton extension, it is also possible to mount the remote reset device FR 870 (art. No. 70700, refer to the documentation "Remote Reset device FR 870").
The oil burner control boxes TTO 872.2 / 876.2 are equipped with a low-voltage protection according to DIN-EN 230. | 
