10
GB
T3
T2
T1
ON
0
4
8
12
16
20
R
T
1
2
3
4
5
6
7
Fig. 17
T3
T2
T1
ON
0
4
8
12
16
20
R
T
1
2
3
4
5
6
7
Fig. 16
NC
NA
C
NC NA C
TH/400
L
N
U1
Fig. 15A
LOAD
NC
NA
C
NC NA C
TH/400
U2
L
N
M
Fig. 15B
OPEN
CLOSED
being controlled by the thermostat;
refer, therefore, to the diagram in
figure 15A or 15B.
KEY
Mains power supply conductors
N = neutral
L = live
Relay conductors
C = common
NA = normally-open contact
NC = normally-closed contact
Loads
U1 = burner, water-circulating
pump, solenoid valve, etc.
LOAD
U2 = motor-driven valve
3 - SETTING
THE CLOCK
3.1 - Open the front panel on the
thermostat.
3.2 - Press button
, figure 16.
The minute digits flash.
ON
T3
T2
T1
ON
0
4
8
12
16
20
1
2
3
4
5
6
7
Fig. 14
TH/400.01 ITF 2407-9122 04.06 3-05-2006 15:56 Pagina 10
