Electronics box Viessmann, MB18, 11, MA18, 7814549 , replaces 7403613
MB18, 11, MA18
Burner No.: 7252665, 7252690,
7252693, 7252750, 7252751,
7252776, 7252777, 7252778,
7252779, 7252780, 7408049,
7408078, 7408107, 7450261,
7450263, 7518500, 7518501,
7518502, 7518503, 7518504,
7518505, 7518506, 7518507,
7518508, 7518509, 7518510,
7518511, 7518516, 7518517,
7518527
Manufacturer No.: 7814549
(replaces 7403613)