EN • 20
ENGLISH
FRANCAIS
NEDERLANDS
ESP
AÑOL
IT
ALIANO
DEUTSCH
664Y3400
INSTALLATION
WIRING DIA
GRAMS / MODELS :
28 - 36
L1
1
2
br
br
br
bk
N
3
4
b
bb
b
b
b
5
6
8
7
t
p
b
b
b
br
or
g
b
b
r
bk
3 amp
MCB
C
2
1
r
C
1
2
or
9
10
11
12
y
yy
13
14
y
yy
y
y
pk
pk
b
pk
t
or
or
or
or
r
r
gg
gp
k
p
k
p
k
r
pk
b
b
b
w
b
b
w
g
g
or
b
b
g
17
19
18
20
M
2.1.
2.2.
1.1.
1.2.
21
22
t
w
r
AB
C
D
E
F
GH
J
J
L
I
K2
K4
b
w
23
24
w
pk
K5
K3
y
g
b
15
16
24
21
32
31
14
11
O
P
Q
b Blue
bk Black
br Brown
g Grey
or Orange
pk Pink
r Red
v Violet
w White
y Y
ellow
A ON/OFF
switch
B
Manual reset high limit thermostat
C
W
ater pressure switch
D Alarm
indicator
E
DHW priority relay (optional)
F
Minimum thermostat (with direct DHW kit)
G
Summer / W
inter switch
H
Boiler thermostat 60 - 85°C
I
Boiler thermostat 78 - 53°C
J
Power level switch
K2
Power relay 1 - level 1
K3
Power relay 1 - level 2
K4
Power relay 2 - level 1
K5
Power relay 2 - level 2
L T
imer
O Switch
indicator
P Room
thermostat
(optional)
Q Boiler
pump
1-2:
Life (230V ~ 50Hz)
3-4: Neutral
5-6: T
ime
clock
(optional)
7-8: Master
Relay
(optional)
9-10: Stop
Bridge
11-12: Room
thermostat
(optional)
13-14:
Domestic hot water thermostat
(optional)
15-16:
Domestic hot water pump
17-18:
3 ways valve
(optional)
19-20: Boiler
pump
21-22:
Relay K4 disactivated
23-24:
Relay K5 disactivated
