For burners on hot-air heaters, as well as burners above 30 kg/h in intermittent operation, 1- or 2-stage, direct lockout

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 MMO872/876 is fully interchangeable with the type TTO872/876, but going directly to lockout (=lockout at loss of flame).

It is 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 MMO872/876 are equipped with a low-voltage protection according to DIN-EN 230.