Viessmann Vitotronic 200 Installation And Service Instructions Manual page 31

Connecting an AC burner
A To the control unit
B To the burner
Burner without plug
Install the mating plug from
Viessmann or from the burner manu-
facturer; connect the burner cable.
(cont.)
Terminal codes
L1 Phase via high limit safety cut-
out to the burner
PE Earth conductor to burner
N Neutral conductor to burner
T1, T2 Control chain
S3 Connection for burner fault
B4 Connection for hours run
meter
~ Signal pass direction:
Control unit
| Signal pass direction:
Burner
Equipment codes
STB Control unit high limit safety cut-
out
TR Control unit control thermostat
H1 Burner fault signal
BZ Hours run counter
Installation sequence
burner
control unit
31