91
EN
5.12 Electrical connections
Sime
ALU HE
boilers require the connections given below which
must be carried out by the installer or by professionally qualified
personnel. Some of the cabling is to the MC terminal board and
some to the electronic circuit board connectors.
To connect the electrics:
– remove the top panel (1) and front panel (2) to access the MC
terminal board
– undo the screws (3) that attach the control panel and rotate
it forward
– undo the screws on the back of the control panel and take off
the cover (4) to access the electronic board.
The cables must go into the back of the boiler and must be
locked when the job is completed with the tear-proof cable clip
that's already fitted. Once the connections have been made,
reassemble what was previously dismantled.
1
2
b
d
3
4
a
c
Fig. 24
Connections to be made by the installer
The connections shown below MUST be made for single boilers
or for the master boiler in a cascade.
L
N
PE
Pc
p
N
PE
AC
S
N2
RISc
N3
SF
SF1
PC
PC1
GND
PWM
MC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
230 V
50 Hz
Pcp
L N
PM
VD
SRF
PB
VG
1
PM
Fig. 25
KEY:
MCP
Primary circuit pump (4A - 230V)
L Line
N Neutral
PB
Tank pump (4A - 230V)
PM
Modulating pump (4A - 230V)
VD
Diverter valve
PWM-GND Modulation for modulating pump (if present)
SF-SF1
Flue gas damper consent (Max 4A - 230V)
PC-PC1
Connections for pump operating signal
SRF
Flue gas damper
Connections to electronic circuit board
The connections shown below MUST be made for single boilers
or for the master boiler in a cascade.
BLU
CN2
CN3
CN4
CN5
CN6
CN7
CN9
CN14
CN13
CN12
49 50
58
1
1
2
3
4
5
6
7
8
9
10
4
5
N
L
6
7
10
69
72
11
17
18
F1
JP1
F2
BLU
MARRONE
TA1 230V
N
AR
VZ
N
AUX
L
AUX
L
VZ
AR
11
12
13
14
15
16
17
SB/SA
TS
SE
TZ1
TZ2
0...10VDC
CR
KA
VD2
KA
VD1
Fig. 26
KEY:
L Line
N Neutral
SE
External sensor
CR
Remote control or, alternatively, a MODBUS
interface kit
SB/SA
Storage tank sensor or auxiliary sensor (e.g.
system delivery sensor, SMi)
TZ1÷TZ2 Air thermostat for the zone
JP1
Dial jumper or 0...10V DC or TA2 (**)
AUX
Auxiliary connection
VZ
Zone valve
TA1 (230V) Air thermostat
AR
Remote alarm
(**) JP1 engaged = TA2 usable; 0 ... 10V DC not usable; JP1
disengaged = TA2 not usable; 0 ... 10V DC usable
m
WARNINGS
It is compulsory:
– to use an omnipolar cut-off switch, disconnect
switch, in compliance with EN standards (contact
opening of at least 3 mm)
– to respect connection L (Live) - N (Neutral)
– to refer to the electrical diagrams in this manual for
any electrical intervention
– to connect the earth wire to an effective earthing
system (*).
d
IT IS FORBIDDEN
– to use cables with a cross-section of less than 1 mm
2
– to use the water pipes to earth the appliance.
(*) The manufacturer is not responsible for any damage
caused by failure to earth the appliance or failure to
observe the information provided in the wiring diagrams.
Summary of Contents for ALU HE 116
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