Fitting The Control Unit To The Boiler - Viessmann Vitocrossal 100 Installation Instructions For Contractors

Connecting the internal connecting cables to...
100
35
Fig. 29
LV plug
Ionisation electrode
aA
X9 Combustion chamber pressure limiter, gas train
modulation coil control
additionally A
a:Ö
X8 Cable harness: Boiler water and flue gas tempera-
ture sensor, fan control

Fitting the control unit to the boiler

!
Please note
Hot components can damage electrical cables.
Never route electrical cables near hot compo-
nents. Observe the maximum permissible tem-
peratures for the cables.
24
54
11
X9
X8
, for boilers up to 80 kW
a:Ö
(cont.)
Plug 230 V~
Gas train
dG
Ignition unit
gF
Fan
a-Ö