6
user’s manual
Clock Instructions
1. General layout
The mechanical clock covers a 24 hour period. Each tappet
represents 15 minutes
A
. An override switch is located on the clock
B
.
2. To set the time
To set the time of day, grasp the outer edge of the dial and turn
slowly clockwise until the correct time is lined up with the arrow
C
.
3. To Set the “On” and “Off ” times
The clock uses a 24hours system. e.g. 8 = 8.00 am and 18 = 6.00
pm “ON” periods are set by sliding all tappets between the “ON”
time and the “OFF” time to the outer edge of the dial. The tappets
remaining at the centre of the dial are the “OFF” periods.
4. For operation
Put the selector switch
B
to the
symbol to control the central
heating by the clock. Put the switch
B
to “
I
” to select permanent
operation or to “
0
” to turn the central heating off permanently.
11
22
33
44
55
66
77
88
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
1919
2020
2121
22
22
23
23
24
24
99
66
12
12
I
A
C
B
Switching off the boiler
To switch off the boiler press the ON/OFF button, the display will
switch off .
The Anti-frost Function is already active.
ATTENTION!!
Switch off the boiler completely by switching the external electri-
cal switch to the OFF position. Shut off the gas valve..
Adjusting the heating
It is possible to set the temperature of the heating water by pressing
the buttons
12
.
The temperature that may be obtained which varies from:
- 20°C to 45°C (low temperature)
- 35°C to 82°C (high temperature).
Domestic hot water temperature adjustment
only for CLAS HE EVO MODELS
It is possible to set the temperature of the domestic hot water
by adjusting the button
2
a temperature may be obtained which
varies from about 36°C to about 60°C.
The value set previously will fl ash on the display.
Switching off the heating
To switch off the heating, press the MODE button
3
; the heating
operation symbol will disappear from the display. The Mode button
can be used to keep the domestic hot water production process
active or to place it in standby (modes deactivated).
In the fi gure below the boiler remains active only for the production
of domestic hot water, indicating the set temperature.
