31
Instruction for the installer
FUNCTIONAL FLOW WIRING DIAGRAM ALKON 35S R
A1...A11
=
Service connectors
DK
=
Minimum water pressure switch
E.ACC/RIL
=
Ignition/detection electrode
P
=
Circulating pump
SR
=
CH flow sensor
SRR
=
CH return sensor
TL
=
Limit thermostat
VG
=
Gas valve
VM
=
Modulating fan
Y1
=
Connector: Outdoor sensor- modulating room
thermostat
Y2
=
Connector: Line voltage - On/Off room thermostat
(230 V)
A4
A1
A3
A5
A2
A6
A8
Y2
X3
Y1
A11
A9
VM
1
2
3
4
5
6
BLACK
GREEN
BLUE
ORANGE
LIGHT BLUE
BROWN
WHITE
YELLOW GREEN
RED
Y
E
LLO
W
/G
R
E
E
N
LIGHT BLUE
BROWN
VG
LI
G
H
T
B
L
UE
LI
G
H
T
B
L
UE
BR
O
W
N
BR
O
W
N
TL
SRR
SR
DK
BROWN
LIGHT BLUE
GREEN
GREEN
WHITE
WHITE
WHITE
BROWN
LI
G
H
T
B
L
UE
LI
G
H
T
B
L
UE
P
LI
G
H
T
B
L
UE
BR
O
W
N
BL
AC
K
YEL
L
O
W
/G
R
EEN
SS
(preset)
MDV
(preset)
TRASF.
ACC.
E.ACC./RIL.
BL
AC
K
230 V - 50 Hz
To the general
bipolar switch
(installer)