Vaillant ecoLEVEL Bedienungsanleitung Seite 15

Connection type B (ecoTEC):
Connect the overflow safety switch to the boiler's low
voltage circuit in the following manner:
• Open the boiler electrical box.
• Plug the matching plug into the X40 slot on the boiler
PCB.
Note!
If the boiler has a built-in 2 from 7 multi-func-
tion module (item no. 00 2001 7744), the X40
connection is already assigned. In this case,
plug the connector to X40B on the 2 from 7
multi-function module.
See also the multi-function module instruc-
tions.
1
Fig. 6.3 Connecting the overflow safety switch,
connection type B
Installation and maintenance manual ecoLEVEL 0020010507_02
Electrical connection 6
Connection type C:
When installed as shown here, the condensate pump will
isolate the boiler in the event that the pump fails or in
the event that the overflow safety switch in the pump is
activated, e.g. if it is blocked. This will prevent the boiler
from continuing to produce condensate and prevent the
risk of flooding.
Connect the overflow safety switch to the boiler in the
following manner:
• Using a suitable cutting tool, cut off both plugs at the
end of the cable (2, Fig. 6.1) and remove the insulation
from the ends of the wires.
• Connect with the mains voltage connection on the
boiler as shown in Fig. 6.4.
• Connect to the 230 V mains voltage connection on the
ecoLEVEL condensate pump as shown in Sec. 6.2.
Boiler
PE L1
230 V ~
Fig. 6.4 Connecting the overflow safety switch, connection
type C
N
230 V ~
GB 9