18
Electrical
wiring
“Sime Sub HE/DHW”
is supplied with an electric cable. Should this require replacement,
it must be purchased exclusively from SIME. The electric power supply to the substation
must be 230V - 50Hz single-phase through a fused main switch, fi tted with a 3 A fuse, with
at least 3 mm spacing between contacts. Respect the L and N polarities and the earth
connection.
This must be carried out by a qualifi ed electrician.The wiring conforms to the applicable rules
for CE marking and has undergone electrical safety testing and function testing (fi g. 10).
SIME declines all responsibility for injury or damage to persons, animals or property,
resulting from the failure to provide for proper earthing of the appliance.
Before any work is done on the substation, it must be isolated from the power supply by
turning off at the external switched supply.
LCH
LDHW
FA
MSW
VCH
P
VDHW
L
N
1
23456789
10
11
12
13
14
1
4
23
5
BLUE
GREY
BROWN
BLACK
BROWN
BLUE
BLACK
BLACK
BROWN
BLUE
WHITE
RED
W
S
RT
L
N
MS
OP
4
5
6
7
FL
WSS
Fig. 10
LE
GEN
D
A
MSW
ON-OFF SWIT
CH
WS
S
WINTER/SUMMER SWIT
CH
MS
MAIN SUPPL
Y
FA
FUSE 1,6 A
T
VCH
CH MO
TORIZED V
AL
VE
VDHW
DHW MO
TORIZED V
AL
VE
P
CH PUMP
FL
DHW FL
O
W SWIT
CH
LDHW
DHW LIGHT
LCH
CH LIGHT
OP
SWIT
CH CONNEC
TIONS F
OR OPTIONAL CL
OCK
RT
ROOM THERMOST
AT CONNEC
TION
N
ot
e:
R
em
ov
e 6
-7
c
on
ne
ct
io
ns
fo
r O
P
