Burner Adjustment When Connecting Multiple Flues To A Shared Flue System; Removing The Burner - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance

Burner adjustment when connecting multiple flues to a shared flue system

Note
Only make this adjustment on appliances suitable for
multiple connection.
For suitable Vitodens appliances, see pricelist.
When connecting several Vitodens 111-W to a com-
mon flue system:
For multiple connection, in the commissioning assis-
tant use "C.4", "C.5" and "C.6" to match the burner
setting to the flue system. See page 33

Removing the burner

Note
Remove cover panel, see page 42.
4x
F
D
C
B
A
Fig. 29
1. Turn off the ON/OFF switch.
2. Close the gas shut-off valve and safeguard against
reopening.
48
System conditions:
■ Shared flue in shaft
■ Balanced flue connection pipe from boiler to shaft,
80/125 mm
7
■ Minimum shaft cross-section
Square: 175 x 175 mm
–
Round: 195 mm
–
7
Height between floors min. 2.5 m
■
■ Max. 6 boilers with the same rated heating output
connected to the flue system
E
3. Disconnect cables and leads from:
■ Fan motor
Ionisation electrode
■
■ Ignition unit
■ Earth
D
100 mm
7
(2 plugs)
A
B
C