Installation Manual
COMBI - TA05A005.C0604
10
VT
1
2
BLACK
BLACK
BROWN
LIGHT BLUE
YELLOW/GREEN
BLACK
BROWN
YELLOW/GREEN
LIGHT BLUE
TA
TA
5
TA
L
N
OR
N
L
OR
1
2
3
4
5
4 3
2 1
M
M
TA
PT
TA
OR
L
N
N
L
OR
TA
PT
PT
red
ye
llow
blu
e
brow
n
red
ye
llow
blu
e
brow
n
SHUKO
PLUG
MAINS
FOR U.K.
APPLICABLE
NOT
ELECTRICAL CONNECTIONS
The boiler works with 230 V 50 Hz AC current
and has maximum input of 150 W. Connection to
the electrical mains must be performed with a
device having an omnipolar opening of at least 3
mm. Make sure the live and neutral connections
conform to the diagram.
A secure earth
connection is compulsory.
IMPORTANT
If you need to replace the power supply cable,
use cable having the same characteristics: (HO5
W-F) 3x1.5 with maximum external diameter 9
mm.). Connect to the terminal block located in the
instrument panel as follows:
A.
Turn off the electrical power supply at the
mains.
B.
Remove the boiler front casing.
C.
Undo the two side screws on the panel using
the VT screwdriver and turn it to the position
shown in fig.1 (pos. 1).
D.
After pulling the panel downwards, undo the
four rear screws on the housing and open the
electrical control box by lifting the cover as
shown in fig.1.
E.
With the electrical control box now open make
the following connections:
•
Connect the yellow/green wire to the terminal
marked with the earth symbol “ “ (see
fig.1).
•
Connect the blue wire to the terminal marked
with the letter “N”.
•
Connect the brown wire to the terminal
marked with the letter “L”.
CONNECTION OF ROOM THERMOSTAT
NOTE
: use low voltage II room thermostats only.
The thermostat wire must not be placed in the
channel containing high tension wires, but must
have its own line
The room thermostat lead must not exceed 50m
n length; minimum section 0.5 mm.
Connection
: after carrying out the operations
described on page 15, proceed as follows:
A. Insert the room thermostat lead into the
entry point on the electrical control box
along with all the other leads on the boiler.
B. Move the bridge
PT
(see fig.4) from
terminal
TA
to the free one next to it.
C. Insert the thermostat wires (fig.5) one in
terminal
TA
and the other in the one next to it occupied by bridge
PT
which you have just moved.
If a timer is fitted as well as a room thermostat, carry out the electrical connections for the timer according to the indications in figures 6-
7.
INSTRUMENT PANEL
Fig. 1
Fig. 5
Fig. 4
Fig. 2
Fig. 7
Fig. 6
Fig. 3
