49
GB
CN
Gr
Fr
SP
PT
020130_0800
Figure 9
CO2%
(L1+L2) MAx
CONTrOL POSITION
G.20
G.30
G.31
0÷4
1
4÷18
2
6,7
7,3
7,3
18÷30
3
indice
opening
Connecting the mains supply
Electrical safety of the appliance is only guaranteed by correct grounding, in compliance
with the applicable laws and regulations.
Connect the boiler to a 220-230V mon ground power supply by means of the
three-pin cable supplied with it and make sure you connect polarities correctly.
Use a double-pole switch with a contact separation of at least 3mm in both po-
les.
In case you replace the power supply cable fit a HAR H05 VV-F’ 3x0.75mm
2
cable with
an 8mm diameter max.
…access to the power supply terminal block
• isolate the electrical supply to the boiler by the double-pole switch;
• unscrew the two screws securing the control board to the boiler;
• rotate the control board;
• unscrew the lid and gain access to the wiring (Figure 10).
A 2A fast-blowing fuse is incorporated in the power supply terminal block (to check or
replace the fuse, pull out the black fuse carrier).
(L)
= Live brown
(N)
= Neutral blue
(
)
= Ground yellow/green
(1) (2) = room thermostat terminal
Figure 10
020130_0900
terminal board
Figure 11
9402250715
Fitting a room thermostat
• gain access to the power supply terminal block (Figure 11) as described in the previous
section;
• remove the jumper placed on terminals (1) and (2);
• insert the duplex cable through the core hitch and connect it to the two terminals.
Connecting a programming clock
* connect the programming clock motor to the main PCB CN1 connector (terminals
1 and 2);
* connect the programming clock switch to the CN1 connector terminals (3 and 4) and
remove the jumper.
In case you are fitting a battery-operated programming clock do not connect the CN1
connector terminals (1 and 2).
Summary of Contents for initia MASTER 2.24 CF
Page 39: ...0609_1503 ...
Page 42: ...INITIA MASTER SPARE PARTS CATALOGUE September 2006 ...
Page 43: ......
Page 45: ......
Page 46: ......