Unical ALKON 50 c, Installation And Servicing Manual

Page: 40 / 44

40
ALKON 70 c
1 2 3 4
ROOM STAT
IN OUT
-BUS +
Y1
A12
A10
X1
A5
A1 A2 A3 A4
A13
A6
A7
A8
A9
GND1
GND2
GND3
GND4
A11
A1
B
K
(-)
B
L
(T
A
C
H
O
)
O
R
(+)
B
R
(P
W
M
)
ST2
VM (R)
A8
230V
50 Hz
Y
G
B
L
B
R
Y
G
B
L
B
R
IG
1 2 3 4
ROOM STAT
IN OUT + BUS -
TA
B
K
E
B
U
S
E
B
U
S
A6
L
B
L
B
R
L
B
L
B
R
Y
G
YG
E. ACC.
R
VG
A3
B
R
B
L
B
R
B
L
G G W
H
W
H
SRR SR
A4
B
L
B
L
B
L
B
L
B
K
TF (*)
TL
IN
A
IL
W
H
E. RIV.
Fs1
SS (#)
kit ACS
B
K
W
H
SS (#)
SL
B
R
B
K
PF
W
H
B
L
min max
B
R
B
L
PDPS
W
H
B
R
P
K
G
R
(-) (M
O
D
U
L
A
T
IO
N
)
DK CPM
GRUNDFOSS
A2
W
H
B
R
B
L
(-) (M
O
D
U
L
A
T
IO
N
)
CPM
WSC
B
R
DK
(#)
A2
A9
PM
Y
G
B
R
L
B
L
VM (A)
Y
G
L
B
L
B
R
G R
(C
H
)
(D
H
W
)
W
H
(D
H
W
)
W
H
R
(C
H
)
G
(70)
kit ACS
MVD (#)
MVD (#)
P(F)
A13
B
R
L
B
L
Y
G
(#)
Comand.
TA
on/off
0 1
2
3
4
5
6
7
8
9
KEY
(#) Optional KIT
(*) Predisposition
A1.....A13 Services connectors
CMP Modulating pump control
DK Water deficiency safety pressure switch
e-BUS Connection terminals
HSCP / E8
E. ACC Ignition Electrode
E. RIV Detection Elecrode
MVD Diverter valve motor (external tank)
MDV kit ACS Diverter valve motor DHW kit
P(F) Pump
(ALKON 50 c - NOT AVAIBLE)
PDPS Pressure switch DHW
PF min_max Flue gas pressure switch (min. max)
PM Modulating Pump
SR Flow heating sensor
SRR Return heating sensor
SL Condensate level sensor
SS Domestic hot water probe
TL Limit thermostat
TF Smoke Thermostat (Predisposition)
VG Gas Valve
VM Modulating fan
TA On/off TA connection terminals