21
Plug
lH
EA1 extension
A
lH
N
?
1 L
A
Floating contact (when connecting, remove jumper
– if installed – between L and 1)
B
[{S
DE
[{D
DE
[{A
DE
A
A
Floating contact
B
EA1 extension
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
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
Power supply for accessories at plug
lH
(230 V ~)
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.
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
Electrical connections
(cont.)
5778741
Installation
