33
6155049
2
3
4
5
6
7
8
M. SUPP
LY
M. SUPP
LY
PUMP
C
PUMP
C
TV
W
TV
W
PUMPPUMP
LL
NN
PEPE
LL
NN
PEPE
LBLB
LALA
NN
LL
NN
PEPE
PUMPPUMP
OO
GG
II
TcylTcy
l
R
T
R
T
MAMA
FNFN
CR
20
32
CR
20
32
1
FN disabled
MA Master appliance
(open – heat exchanger)
RT Alternative room temperature
controller
(open – central heating blocked)
Tcyl Temperature sensor for
DHW cylinder
M SUPPLY Power supply to PCB
(230 V)
PUMP C DHW circulation pump
TWV Three-way valve control
(CH/DHW)
PUMP (L,N,PE) Power connection
DHW circulation
pump
L – brown,
N – blue,
PE (earth conductor)
– green-yellow
PUMP (O,G,I) PWM-
signal
connection
DHW circulation
pump
O – brown,
G – blue,
I – black
!
Battery SN2032
"
Tin – terminal for
return temperature sensor
§
PW35 – terminal for
control panel
$
Microswitch for power supply
settings
%
Terminal for main PCB
&
1 A fuse
(pump and TWV supply)
/
Press – terminal for
pressure sensor
(
Tout – terminal for
flow temperature sensor
Operating mode
settings
Rated output
Connection
type to
electrical
system
Inactive
Operating mode
1 – ON
12, 16, 20, 24 kW
2 – ON
Three-phase
3 – ON
Do not change!
4, 6, 8 kW
2 – OFF
Single-phase
3 – OFF
Table 3. Selecting the power supply type (Pos. 4)
Description of PCB MSK.80/05 VLN3
Installation sequence
