fÖ Mains power connection 230 V ~
50 Hz (green plug)
Do not interchange the supply
conductors L1 and the neutral
conductor N.
A two pole shut off switch with a
contact separation of at least
3 mm must be fitted in the mains
supply to the boiler with a maxi-
mum fuse value of 3 A.
A 1.5m power cable is part of the
standard delivery.
gH Mains connection accessories/
room temperature control/DHW
cylinder control (black plug)
A If making the connection between,
„L“ and „LR“ remove jumper gH.
LR Connection of room temperature
control
&
Vitotrol 100 UTA
&
Vitotrol 100 UTD
LS Connection of DHW cylinder con-
trol
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