Supplied By www.heating spares.co Tel. 0161 620 6677
13
Mynute
SETTING INSTRUCTIONS FOR THE VOKERA 24HR 2 CHANNEL PROGRAMMER
The Vokera 2 channel 24hr programmer will automatically
switch your central heating system ON and OFF once or
twice a day, whichever you wish and at whatever times you
choose. You also have the option to obtain continuous ON
or OFF operation.
It incorporates a rechargeable battery back-up system to
protect the programme during power cuts of up to 24
hours, even though display will go blank.
The clock in the programmer has to be set to the actual
time of day.
It must then be told at what times you want it to switch your
Central Heating (CH) and Hot Water (HW) system ON and
OFF. This set of switching times is known as a programme.
The programmer has an in-built programme of standard
switching times. They may well be right for you, but if they
are not exactly what you want you can change them.
The standard programme is shown in the table overleaf,
and, for simplicity, the switching operations are described
as ON1, OFF1, ON2, OFF2 from now on.
SETTING THE CLOCK
Use the chart overleaf to plan your own programme before
proceeding.
Switch on the mains supply to the boiler, then switch the
mode selector switch ON. Press and release the button
marked SET.
The display will show
Press and release the button marked YES to answer the
question and the hour part of the display will flash. Use the
+ and - buttons to change to the correct hour (check AM or
PM) then press SET again.
This will cause the minutes part of the display to flash. Use
the + and - buttons to change the minutes as required, then
press SET again.
The display will now show
(see later instructions for changing your programme).
Press the SET button again and the display will now show
the time of day you have set.
Your programmer is now in the operating mode and ready
to work using the built-in standard programme times.
CHANGING YOUR PROGRAMME
With the module in the operating mode and the display
showing the actual time of day, press the SET button. The
display will again show SET CLOCK ? but this has already
been done so push the SET button again.
The display will now show SET PROG ? and as it is the
programme settings which are to be changed press the
YES button.
The display will show
NOTE: If you wish to make changes to the ON or OFF
timings for CH you press the yes button, if not you press
the SET button again and this will change the display
question to SET HW PROG ?.
Again you have to answer the question either with the YES
button or by pressing the SET button which returns the
programmer to the normal operating mode with the time of
day displayed.
If you answer YES to SET CH PROG ? the display will
show the time set for the first CH ON (ON1). This can be
altered in steps of 10 minutes by the use of the + & -
buttons. When the display is showing the time you want,
press SET and the CH OFF (OFF1) time will be seen.
Again changes can be made using the + & - buttons before
pressing SET to display the time for CH ON (ON2). After
making any adjustments press SET again to get the CH
OFF (OFF2) time displayed. This may be adjusted up to
23hrs & 50 mins. after the first switch on time.
Press the SET button again and the question SET HW
PROG ? will be displayed.
By answering YES, the same procedure can be followed
for adjusting the HW timings before pressing SET one final
time to go back to the time of day.
HELPFUL HINTS
1. The + and - buttons are used to change times. Press
and release for small changes; press and hold down
and the time will ’run’.
2. You cannot set the first switch on time (ON1) before
mid-night but you can set the (OFF2) after midnight so
long as you don’t try to exceed 23 hour 50 mins after
(ON1).
3. The four switching times have to be in sequence
(ON1,OFF1,ON2,OFF2) if you try to set OFF1 earlier
than ON1 the display will stop at the ON1 time with the
OFF symbol flashing. The same thing will happen with
other switching times e.g. between OFF1 and ON2, this
time the ON symbol will flash.
4. If you attempt to set the ON1 after the OFF1 time, the
ON symbol will flash and the OFF1 setting will follow the
ON1 time being set to prevent incorrect programming.
The same feature applies with the other ON and OFF
times and also between the OFF and ON times.
5. If you get confused and wish to start the whole
programming procedure again, press the SET and +
buttons together for a moment. The module will revert
to a mid-night time display and the built-in standard
programme. You will now have to set the clock again
and then enter the programme you want.
6. When you are making adjustments to timings, if no
button is pressed for 1 to 2 minutes, the module will
automatically revert to the normal operating mode.
7. To shut the CH down for the Summer simply select the
OFF option by means of the CH SELECT button.
SET
CLOCK ?
SET
PROG ?
SET
CH
PROG ?
SET
PROG ?
HW
