4
BUILT-IN CLOCK
The Vision 25C & 30C incorporate a built-in digital clock and
multi-inf mative LCD display.
1.1
The digital clock is pre-programmed with a default heating
pattern (see table 1 below); however this can be modiied to
suit individual needs (see 1.4).
Pre-programmed Heating Pattern
Day
am
pm
ON
OFF
ON
OFF
Monday
06:30
08:30
4:30
10:30
Tuesday
06:30
08:30
4:30
10:30
Wednesday
06:30
08:30
4:30
10:30
Thursday
06:30
08:30
4:30
10:30
Friday
06:30
08:30
4:30
10:30
Saturday
08:00
10:00
4:00
11:00
Sunday
08:00
10:00
4:00
11:00
1.2 MODES OF OPERATION
The built-in digital clock has the following modes of operation:
1. AUTO ON / AUTO OFF – where the clock uses the pro-
grammed heating pattern (default or user deined) to switch
the heating ON & OFF at pre-selected times (see Fig.1).
2. MAN ON – where the clock is set to provide heating con-
stantly ON (in this mode the default or user deined heating
pattern is ignored).
3. MAN OFF – where clock is set to have the heating constan-
tly OFF (in this mode the default or user deined heating
pattern is ignored).
4. ADVANCE ON – where the pre-programmed heating pat-
tern is advanced to the next ON period (this function can
only be used when the clock is in the AUTO OFF mode)
5. ADVANCE OFF - where the pre-programmed heating pat-
tern is advanced to the next OFF period (this function can
only be used when the clock is in the AUTO ON mode).
1.3 SETTING THE TIME AND DAY
Ensure that the boiler is electrically supplied.
1. Press and hold the
clock button for 3-seconds; the
right hand digits (minutes) will lash continuously.
2. Press the
up arrow button to increase the minutes va-
lue or press the
down arrow button to decrease the
value.
3. Once the correct minutes value is displayed, press the
clock button to store this setting and move to the hours
value.
4. Press the
up arrow button to increase the hours value
or press the
down arrow button to decrease the value.
5. Once the correct hours value is displayed press the
clock button to store this setting and move to the day of
week value.
6. Press the
up arrow button to move forward to the cor-
rect day of week (1 = Monday – 7 = Sunday)or press the
down arrow button to move back to the correct day of
week..
7. Once the correct day of week is displayed press the
clock button to store this setting and complete the time /
day of week, setting procedure.
NOTE, the time of day is shown on the display, and is also
indicated on the 24-segmented display as a lashing segment.
1.4 CHANGING THE HEATING PATTERN
The built-in clock is pre-programmed with a default heating
pattern (see Fig.1), however this can be changed to a user
deined heating pattern.
To insert a new heating pattern or change and existing one,
proceed as follows:
1. Press and hold the
program button for 3-seconds
2. The day of week segment lashes to indicate which day of
week is being programmed
3. Use the
up arrow button to select the required ON
periods and use the
down arrow button to select the
OFF periods
NOTE, each segment represents 30-minutes, the large seg-
ments are hour indicators, and the small segments are half-
hour indicators.
4. When the ON and OFF selections have been made for the
particular day (relevant day of week is displayed by the
appropriate number 1 to 7) press the
program button
to store the new settings and move to the next day.
NOTE
If you want to duplicate the new settings for subsequent days,
e.g. same heating pattern for Monday to Friday, press and
hold the
program button for 3-seconds each time the ap-
propriate day of week is displayed.
EXAMPLE
Day of week = 1 (Monday) Insert the new ON & OFF settings
(step 3 above), press the
button, day of week now shows
2 (Tuesday). Press the
button for 3-seconds, Monday’s
settings are now duplicated for Tuesday; repeat as required.
5. If you require to change the settings for subsequent days,
repeat steps 3 & 4 above
6. Once programming has been completed, continue to press
and release the
program button until you exit the pro-
gramming function (normal display is resumed).
1.5 ADVANCE FUNCTION
When the clock is in the AUTO ON or AUTO OFF mode, it’s
possible to advance the current setting (ON or OFF) to the
next programmed setting (ON or OFF), e.g. if the clock is in
AUTO OFF mode it’s possible to advance to the next AUTO
ON setting.
1.5.1 ADVANCE ON
Press and hold the
up arrow button for 3-seconds, the
display changes from AUTO OFF to AUTO ON and the
icon is displayed.
NOTE, the ADVANCE ON function can be cancelled by mo-
mentarily pressing the
button.
NOTE, when the ADVANCE ON function is enabled, the hea-
ting will remain ON until the next scheduled OFF period.
1.5.2 ADVANCE OFF
Press and hold the
down arrow button for 3-seconds, the
display changes from AUTO ON to AUTO OFF and the
icon is displayed.
NOTE, the ADVANCE OFF function can be cancelled by mo-
mentarily pressing the
button.
Table 1
