39
Installation
Electrical connection
The boiler has 4 socket blocks for all electrical connections:
1.
High voltage supply (230V)
2.
Volt free switches (230V relays)
3-4. Low voltage sensors and I/O
&RPPXQLFDWLRQEXVIRUFDVFDGHG$7$*;/)ERLOHUV
0
PWM
L1
N
L2
1.1
1.2
2.1
2.2
3.1
3.2
3 WV/DHW pump (AC)
VFR3
VFR2
VFR1
Output
Output
Output
Output
L
N
L
N
L
N
Line (AC)
Line (AC)
MO1 (AC)
Input
Output
Output
PWM 0-10V GND
5V
NTC
5V
NTC
5V
NTC
5V
NTC 5V
NTC
Signal GND
Signal GND
MO1 (0-10V output)
MTS1 (T10)
MTS2
MTS3
NTC 7
(outd. sensor)
NTC 3 (DHW/
Tank sensor)
eBus
eBus
Input
Output
Output
Input
Input
Input
Input
Input
GND
PWM
0-10V
24V
Signal
GND
24V
Signal
GND
Signal
24V
GND
24V
5V
Signal
GND
GND
Signal
PADIN 3
PADIN 4
PFDIN 1
PADIN 1
PADIN 2
MO2 (0-10V output)
Input
Input
Input
Input
Output
Input
1
2
5
4
Caution:
After removing the panels 230V
SDUWVFDQEHUHDFKHG
Electrical connections are only to
EHFDUULHGRXWE\TXDOL¿HGSHRSOH
3
Electrical connections above can be reached following the steps below:
1. Remove the front panel.
3UHVVERWKH[WHUQDOVLGHVRIWKHFRQWUROXQLW00,(DQGWLOWWKHGLVSOD\IRUZDUG
(F).
6OLGHWKHWRSSDQHOWRWKHIURQWDQGXVHWKHHQWUDQFHDWWKHEDFNRIWKHERLOHU
WRLQVHUWWKIRUKLJKYROWDIRUORZYROWDJHFDEOH
&RQQHFWWKHFDEOHZLWKVFUHZFRQQHFWRUVDOUHDG\LQWKHVRFNHWEORFNV
(2x)
(2x)
A
C
B
D
E
H1
H2
J
I
F
1
2
3
4
