Power Supply For Accessories At Plug Lh (230 V ~) - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Electrical connections
!
Please note
Live contacts lead to short circuits or phase fail-
ure.
The external connection must be floating and
meet the requirements of protection class II.
Plug
lH
A
1 L
N
?
lH
Floating contact (when connecting, remove jumper
A
between L and 1)
Parameters/codes
"4b:2" in the "General"/1 group
■
Effect of the function on the heating circuit pump:
■
Parameter/coding address "d6" in the "Heating cir-
cuit" group (only for weather-compensated control
units)
Effect of the function on the circulation pump for cylin-
■
der heating:
Parameter/coding address "5E" in the "DHW"/3
group
Power supply for accessories at plug
Where the boiler is sited in a wet room, accessories
outside the wet area must not be connected to the
power supply at the control unit. If the boiler is not
sited in a wet room, the power supply for accessories
can be connected at the control unit. This connection
is switched directly with the ON/OFF switch of the con-
trol unit.
(cont.)
(230 V ~)
lH
EA1 extension
B
[{A [{S [{D
DE DE DE
A
Floating contact
A
EA1 extension
B
Parameters/codes
Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) to 3 or 4 in
■
the "General"/1 group
Effect of the function on the heating circuit pump:
■
Parameter/coding address "d6" in the "Heating cir-
cuit" group (only for weather-compensated control
units)
Effect of the function on the circulation pump for cylin-
■
der heating:
Parameter/coding address "5E" in the "DHW"/3
group
If the total system current exceeds 6 A, connect one or
more extensions directly to the mains supply via an
ON/OFF switch.
Installation sequence
21