Vaillant ecoLEVEL, Operating Manual, Page: 14 / 20

8
Installation and maintenance manual ecoLEVEL
Connection type A (ecoMAX):
Connect the overflow safety switch to the boiler‘s low
voltage circuit in the following manner:
• Open the boiler electrical box.
• Remove the cable bridge from the blue slot (“Anl-
Therm”) on the circuit board.
• Plug the blue Pro E plug on the end of the ecoLEVEL
condensate cable into this slot.
9
8
7
5
4
3
N
L
N
L
Pumpe 2. Pumpe
Anl - Th
e
rm
L N
2
4V I
23
0
V
RT
2
4
V
23
0
V
R
T
2
3
0V
X 10
X 7
X 8
X 2
13
1
1
1
1
C
odierwider
s
tand
1
2
Fig. 6.2 Connecting the overflow safety switch, connection
type A
6 Electrical connection