Making The Electrical Burner Connection - Viessmann Vitocrossal 200 Service Instructions For Contractors

Commissioning, inspection, maintenance
Further details regarding the individual steps
4. Close the boiler door and tighten the
screws on the boiler door evenly and
diagonally.
Torque: 40 Nm.
5. Secure fitting B to the gas supply
pipe.
Torque: 40 Nm.

Making the electrical burner connection

!
Please note
Never allow cables/leads to
come into contact with hot com-
ponents.
Secure all cables with cable ties
if required.
40
40/156 53
34
3A/3B
41
145
15A/15B
(cont.)
Danger
Escaping gas leads to a risk of
explosion.
Check the fitting and gasket
between the fan housing and the
boiler door for gas tightness.
1. Plug burner cable fA and KM BUS
cable aVG into the burner control
unit.
2. Insert control unit connecting cable
fÖ/aBH, boiler sensor leads §A/
§B, flue gas sensor lead aGA/aGB
and power cable fÖ on the burner
side into the couplings on the mount-
ing plate.
3. Plug control unit connecting cable
fÖ/aBH and KM BUS cable aVG into
the control unit.