Viessmann Vitodens 333 Instruction Manual page 12

Electrical connections
Plug 230 V~
fÖ Power supply
&
Never interchange cores "L1"
and "N".
&
Install an isolator in the mains
supply line which simulta-
neously separates all non-
earthed conductors from the
mains with at least 3 mm contact
separation.
&
Max. fuse rating 16 A.
lH
&
Mains supply - accessories
(230 V ~ 50 Hz). Where the boi-
ler is installed in a bathroom or
shower room, the mains supply
of accessories outside the wet
area must not be connected to
the control unit. The power sup-
ply connection for accessories
can be made immediately at the
control unit, if the boiler is
installed outside damp areas.
This connection is directly con-
trolled with the system ON/OFF
switch (max. 3 A).
&
Vitotrol 100 UTA
&
Vitotrol 100 UTD
12
Supplied By www.heating spares.co Tel. 0161 620 6677
(cont.)
Low voltage plug
!
Outside temperature sensor
(only for weather-compensated
mode)
Installation
&
North or northwestern wall, 2
to 2.5 m above ground level. In
multi-storey buildings, in the
upper half of the second floor
&
Not above windows, doors or
ventilation outlets
&
Not immediately below balcony
or gutter
&
Do not render over
&
Two core cable with a maxi-
mum length of 35 m and a
cross-section of 1.5 mm
?
Flow temperature sensor for low
loss header (accessories)
%
DHW cylinder temperature sen-
sor (fitted in the delivered condi-
tion)
aVG KM BUS user (accessory)
&
Vitotrol 200 or 300 remote con-
trol
&
Vitocom 100
&
Extension kit for one heating
circuit with mixer
&
Vitosolic
&
External extension
2