Operating instructions

90
Installation
Connecting an AC burner (cont.)
A To control unit
B To burner
Terminal codes
T6, T8 Control chain
Burner stage 2 ON
or
Modulation controller open
T6, T7 Control chain
Burner stage 2 OFF
or
Modulation controller closed
B Signal pass direction:
Control unit → burner
Y Signal pass direction:
Burner → control unit
Colour coding to DIN IEC60757
BK black
BN brown
BU blue
5862730GB
BN
BK
BU
A
90
T7T8
T6
B