t
P
2
1
P
P
2
1
7
5
6
7
8
t
P
1
t
C
2
1
12
13
1.1
1.2
2.2
1.1
1.2
2.2
A1
A2
9
11
10
4
2
1
M
3
1
2
1
PE
2
1
4
3
1.2
2.2
1.1
2.1
S2
S1
CB
PS
S3
S4
DS1
S5
K1
K3
K2
T1
K4
Br
B
Br
B
Br
B
Bk
Bk
Br
Br
B
B
B
B
B
B
B
B
B
R
R
R
R
Or
Y
Or
Y
Y
G
G
Or
Br
Pk
Or
Or
W
W
W
B
B
B
Br
G
Or
Or
B
B
B
B
B
B
R
Or
Or
Or
R
Bk
E-Tech W
: 664Y6500 • B
en
16
EN
FR
NL
ES
IT
DE
PL
RU
INSTALLATION
CONTROL WIRING DIAGRAM : E-TECH W 09 - 15 SINGLE PHASE
CB : Circuit breaker
S1 : ON/OFF lamp
S2 : Manual reset safety thermostat
[103°C]
PS : Low-water pressure switch
DS1 : Alarm
S3 : Control thermostat
S4 : Power switch level 1 + lamp
K1 : Power relay 1 - level 1
K3 : Power relay 2 - level 1
T1 : Timer
S5 : Power switch level 2 + lamp
K2 : Power relay 1 - level 2
K4 : Safety switch
1-2 : Time clock or controller supply (optional)
3-4 : DHW kit (optional)
5-6 : Stop Bridge or time clock switch control
(optional)
7-8 : Room thermostat (optional)
9-10-11 : Heating pump
12-13 : Relay K3 deactivated
B : Blue
Bk : Black
Br : Brown
G : Grey
Or : Orange
Pk : Pink
R : Red
W : White
Y : Yellow
