2
Operating instructions
The
Mini
combi boilers can be equipped with a 24 hour or a 7
day digital programmer which controls the c.h. operation.
The operating instructions of the 7 day digital porogrammer
are given on pages 3 and 4
24 HOUR DIGITAL PROGRAMMER
A
B
C
D
E
F
G
H
Display and control panel
A
ON---OFF display
B
Mode selector switch
C
Reset button
D
Enter button
E
Increase “+” setting button
F
Decrease “---” setting button
G
On---off button
H
Time display
Setting the current time
Note: with a new unit or when the reset button C has been
pressed and the selector switch B is to the
position, the
time display H is flashing.
Set the mode selector switch B to the
position and press
the buttons E or F until the current time appears in the display
H.
The clock starts by moving the switch B to the AUTO position.
Setting example shown in Fig. 1:
Current time 16.30.
B
Fig. 1
Setting the switching time
20 memory locations are available, corresponding to 10
on---off sequences.
Set the mode selector switch B to the
C1
position. The
symbols shown in Fig. 2 appear in the display.
B
Fig. 2
Press the buttons E or F to set the desired ON time.
Press the “enter” button D to confirm the setting and to
continue programming the OFF time.
Set the OFF time as explained above for the ON setting and
confirm by pressing the “enter” button D. Proceed in the
same way for other settings.
Setting example shown in Fig. 3:
A --- ON time 7.45
B --- OFF time 10.30.
A
B
Fig. 3
Activating the timed settings
Set the mode selector switch B to the
AUTO
position shown
in Fig. 4.
The current time appears in the display. The ON---OFF
display A indicates the current state of operation (according
to the settings).
B
Fig. 4
Note: when the mode selector switch B is in the
AUTO
position and the boiler is switched off at the fused spur
isolation switch, the display A indicates only the OFF state.
The other indications are blanked.
Reading the timed settings
Set the mode selector switch B to the
C1
position. The
symbols shown in Fig. 2 appear in the display.
Press the “enter” button D. Each time the button is pressed
the display shows the details of the next setting.
Changing or deleting the timed settings
Set the mode selector switch B to the
C1
position. The
symbols shown in Fig. 2 appear in the display.
Press the “enter” button D until the display shows the setting
to be modified or deleted.
The time setting can be modified now by pressing button E or
F and the operation can be switched on or off by pressing the
button G.
To delete a time set press the button E or F until the symbols
shown in Fig. 2 appear in the time display H.
The new settigs are memorized by moving the switch B to a
different position.
Manual operation
The operation of the time switch can be forced on or off
constantly or for a timed period.
To force the timer operation
constantly
on or off, set the
mode set the mode selector switch B to the
TIMER
position.
The symbols shown in Fig. 5 appear on the display.
Fig. 5
The operation can be switched permanently on or off by
pressing the button G and leaving the switch B in the
TIMER
position.
