Power Supply For Accessories At Plug Lh (230 V ~) - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Electrical connections
Plug
lH
A
1 L N
?
lH
Floating contact (when connecting, remove jumper
A
– if installed – between L and 1)
Parameter settings
"4b:2" in the "General" group
■
Effect of the function on the heating circuit pump:
■
Parameter "d6" in the "Heating circuit" group
Effect of the function on the circulation pump for cylin-
■
der heating (if installed):
Parameter "5E" in the "DHW" 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
A Floating contact
EA1 extension
B
Parameter settings
Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) in the
■
"General" group to 3 or 4
Effect of the function on the heating circuit pump:
■
Parameter "d6" in the "Heating circuit" group
Effect of the function on the circulation pump for cylin-
■
der heating (if installed):
Parameter "5E" in the "DHW" group
If the total system current exceeds 6 A, connect one or
more extensions directly to the mains supply via an
ON/OFF switch (see next chapter).
Note
Connect all accessories to the power supply with flexi-
ble cables (plastic sheath).
Installing the boiler
21