VOKERA Mynute User manual

THESE INSTRUCTIONS
TO BE RETAINED
BY USER
Vokèra is a licensed member of the Benchmark scheme
which aims to improve the standards of installation and
commissioning of domestic hot water systems in the UK.
Mynute
Standard efficiency system boiler
12e - 16e - 20e
Users
Instructions

1
Mynute
INTRODUCTION
Page
Dear customer 2
Do’s and don’t’s 2
1.1 gas appliances 3
1.2 electrical supply 3
1.3 guarantee registration card 3
1.4 benchmark log book 3
1.5 how does it work? 3
1.6 dimensions 3
1.7 clearances 3
2.1 before switching on 4
2.2 appliance controls 4
2.3 lighting the boiler 4
3.1 top-up the system 5
3.2 reset the appliance 5
3.3 shut down the system for short periods 5
3.4 shut down the system for long periods 5
3.5 care for the appliance 5
4.1 I suspect a gas leak 6
4.2 I frequently have to top-up the system 6
4.3 the reset light is on 6
4.4 the appliance is due its annual service 6
4.5 I need to call an engineer 6
5.1 Mechanical clock 7
5.2 Digital clock 8
5.3 Twin channel programmer 10
Contents
Introduction
Things you should know
Getting started
How to....
What if....
Setting the Vokera...

2Mynute
INTRODUCTION
Dear Customer
YourMynuteboilerhasbeendesignedtomeetandexceedtheverylateststandardsingascentralheatingtechnology,
andifcaredfor,willgiveyearsofreliableuseandefficiency.Pleasethereforetakesometimetoreadtheseinstructions
carefully.
Do’s and Don’ts
●Do ensure that the system pressure is periodically checked
●Do ensure that you know how to isolate the appliance in an emergency
●Do ensure that you are familiar with the appliance controls
●Do ensure that your installer has completed the appliance log book
●Do not attempt to remove the appliance casing or gain internal access
●Do not hang clothes etc. over the appliance
Fig. 1
mode
switch
variable
thermostat pressure gauge Vokera
clock or
programmer
(if fitted)
reset/warning
light

3
Mynute
1.1 GAS APPLIANCES
Gas Safety (Installations and Use) Regulations.
In the interests of your safety and that of others it
is a legal requirement that all gas appliances are
installedandcorrectlymaintainedbyacompetent
person and in accordance with the latest regula-
tions.
1.2 ELECTRICAL SUPPLY
Please ensure that this appliance has been prop-
erlyconnectedtotheelectricalsupplybymeansof
a double pole isolator or un-switched socket, and
that the correct size of fuse (3 amp) has been
fitted.
Warning: This appliance must be earthed!
1.3 GUARANTEE REGISTRATION CARD
Please take the time to fill out your guarantee
registration card. The completed warranty card
should be posted within 30 days of installation.
1.4 BENCHMARK LOG BOOK
The Benchmark Log Book is supplied with your
boiler.Thisimportantdocumentmustbecompleted
duringtheinstallation/commissioningofyourboiler.
All CORGI Registered Installers carry a CORGI ID
cardandhavearegistrationnumber.Bothshoulfbe
recorded in your Benchmark Log Book. You can
check your installer by calling CORGI direct on
01256372300.Failuretoinstallandcommissionthe
appliance in accordance with the manufacturers
instructions may invalidate the warranty. This does
not affect your statutory rights.
1.5 HOW DOES IT WORK?
Your Mynute boiler is a central heating boiler,
whichsuppliesheatedwatertoyourradiatorsand
hot water cylinder.
It is controlled by the time clock or programmer
and any thermostats that your installer may have
fitted.
The Mynute lights electronically and does not
have a pilot light.
Intheunlikelyeventofafaultdevelopingwithyour
boiler, the supply of gas to the burner will be
terminated automatically.
THINGS YOU SHOULD KNOW
1.6 DIMENSIONS
HEIGHT 740mm
WIDTH 366mm
DEPTH 315mm
1.7 CLEARANCES REQUIRED
ABOVE 150mm
BELOW 150mm
SIDES 12mm
FRONT 600mm

4Mynute
GETTING STARTED
2.1 BEFORE SWITCHING ON
Beforeswitchingtheapplianceonpleasefamiliar-
ise yourself with:
●How to isolate the appliance from the gas,
water, and electricity supplies.
●How to check and top-up – if necessary – the
system water pressure.
●The time clock or programmer.
●Any external thermostats and their functions.
●The appliance controls.
2.2 APPLIANCE CONTROLS (see fig. 1)
The appliance controls are concealed behind the
front flap. To gain access to the controls simply
pressthebottomcentreof the flap and lift upward
to engage the holding clip.
The appliance has a mode switch, variable ther-
mostat, system pressure gauge, and an aperture
for an integral clock or programmer. The mode
switch has three positions:
●Reset
●Off
●On
The variable thermostat allows you to set the
temperatureofthewaterto yourradiators andhot
water cylinder (not the hot water to your taps!)
between 40ºC (min) and 80ºC (max).
The pressure gauge shows the current pressure
ofthe system,the gaugeshould besetbetween 1
and1.5BAR. Whentheapplianceisoperatingthe
gaugemay riseor fallslightly,this isquite normal.
The minimum permissible level for the safe and
efficient operation of the appliance is 0.5 bar.
Should the pressure fall below 0.5 bar, the boiler
shuts off automatically.
Depending on the type of controls specified by
your installer you may have an integral Vokera
time clock or programmer fitted to the appliance,
ifso,instructionscanbefoundonpages6-10.Ifan
externaltimeclockorprogrammerhasbeenfitted,
pleaserefertotheinstructionssuppliedwithsuch.
2.3 LIGHTING THE BOILER
Ensure the gas and electrical supply to the boiler
are turned on.
Turnthe mode switch tothe‘on’ position. Refer to
theparticular instructions for the type of program-
mer or time clock fitted and ensure there is a
demand for heating and/or hot water. If there is a
room thermostat and/or hot water cylinder ther-
mostat you should ensure these are also calling
for heat.
When there is a demand for heating and/or hot
water via the above controls the boiler will go
throughanignitionsequence,wherebytheburner
will light.
If the appliance fails to ignite during the ignition
sequence,allowaperiodoftwominutesbeforere-
setting.
To adjust the output temperature of the appliance
turn the thermostat knob clockwise to increase or
anti-clockwise to decrease.
Whentheappliancereachesthe settemperature,
the burner will go off for minimum period of ap-
proximately 3 minutes.
Whentheprogrammer/timeclockorexternalther-
mostats heating request has been satisfied, the
appliance will switch off automatically.

5
Mynute
HOW TO...
3.1 HOW TO TOP-UP THE SYSTEM PRESSURE
(fig. 2)
The system pressure must be checked periodi-
cally to ensure the correct operation of the boiler.
The needle on the gauge should be reading be-
tween 1 and 1.5 bar when the boiler is in an off
position and has cooled to room temperature. If
thepressure requires ‘topping-up’ use the follow-
ing instructions as a guide.
●Locate the filling valve connections (external to
the boiler).
●Attach the filling loop to both connections.
●Openthefillingvalveslowlyuntilyouhearwater
entering the system.
●Close the filling valve when the pressure gauge
(on the boiler) reads between 1 and 1.5 BAR.
●Remove the filling loop from the connections.
3.2 HOW TO RESET THE APPLIANCE
When the reset light is illuminated the appliance
will require to be reset manually. Using the mode
switch, turn it two clicks to the left (reset position)
then turn it back to the ‘on’ position.
Allow a period of two minutes to elapse before
turning the mode switch to the reset position.
IMPORTANT
If the appliance requires to be reset frequently, it
may be indicative of a fault, please contact your
installer or Vokera Customer Services for further
advice.
3.3 HOW TO SHUT DOWN THE SYSTEM FOR
SHORT PERIODS
The system and boiler can be shut down for short
periods by simply turning the programmer or time
clock to the off position (see pages 6-10 or the
instructions supplied). It is also advisable to turn
off the main water supply to the house.
3.4 HOWTOSHUTDOWNTHESYSTEMFORLONG
PERIODS
Ifthe house is to be left unoccupied for any length
oftime –especially duringthe winter –the system
shouldbethoroughlydrainedofallwater.Thegas,
water, and electricity supply to the house should
alsobeturnedoff.Formoredetailedadvicecontact
your installer.
3.5 HOW TO CARE FOR THE APPLIANCE
To clean the outer casing use only a clean damp
cloth.Donotuseanyscourersorabrasivecleaners.
Fig. 2

6Mynute
WHAT IF...
4.1 WHAT IF I SUSPECT A GAS LEAK
Ifyoususpectagasleak,turnoffthegassupplyat
the gas meter, and contact your installer or local
gas supplier. If you require further advice please
contact your nearest Vokera office.
4.2 WHAT IF I HAVE TO FREQUENTLY TOP-UP
THE SYSTEM
Ifthe system regularly requires topping-up, it may
beindicativeofaleak.Pleasecontactyourinstaller
and ask him to inspect the system.
4.3 WHAT IF THE RESET LIGHT IS ON
Iftheresetlightisonitindicatesthattheboilerhas
failed to ignite or has overheated, when this hap-
pens the boiler automatically shuts down and
requires to be reset manually (see 3.2).
4.4 WHAT IF THE APPLIANCE IS DUE ITS AN-
NUAL SERVICE
Advice for tenants only
Your landlord should arrange for servicing.
Advice for homeowners
Please contact Vokera Customer Services (0870
333 0220 (UK) or 05655057 (ROI) if you would
prefer a Vokera service engineer or agent to
service your appliance. Alternatively your local
CORGI registered engineer may be able to serv-
ice the appliance for you.
4.5 WHAT IF I NEED TO CALL AN ENGINEER
Ifyouthinkyourboilermayhavedevelopedafault
please contact your installer or Vokera Customer
Services(08703330220(UK)or05655057(ROI)
haveallyourdetailsto handincluding fulladdress
andpostcode,relevantcontactnumbers,andyour
completed appliance log book.

7
Mynute
VOKERA TIMECLOCKS
5.1 SETTING THE MECHANICAL CLOCK
The Vokera mechanical time clock can automati-
callyswitchyourboileronandoffatthesametime
every day of the week. The minimum ’on’ or ‘off’
period can be as little as 15 minutes.
The outer clock face consists of 96 black pins.
Each pin represents a time period of fifteen min-
utes.When apin ispushed towardstheoutside of
theclock face, the time clock is in an ‘on’ position,
consequently when it is pushed towards the inner
part of the clock face it is in an ‘off’ position.
5.1.1 SETTING THE ‘ON’& ‘OFF’TIMES
Push the necessary amount of pins towards
the outer clock face for the time period that
you want the boiler to be ‘on’(for example if
youwantedtheboilertobeonbetween4.00PM
and 8.00PM, push out the 16 pins located
between 16 and 20 on the clock face).
5.1.2 SETTING THE ‘TIME OF DAY’
Grasp the outer clock face and turn clock-wise
until the correct ‘time of day’is opposite the black
pointer.
5.1.3 SELECTOR SWITCH
The time clock has a three-position switch. This
switch over-rides the timed settings (‘on’ & ‘off’
times) of the clock.
'CorrectTime'Pointer
Selector Switch
I = boiler 'on' continously
= boiler working via time clock
0 = boiler 'off' continously
Vokera 24 Hour Mechanical Clock

8Mynute
VOKERA PROGRAMMERS
5.2 SETTING THE DIGITAL CLOCK
The Vokera digital time clock will automatically
switchyour boileron andoff.Ithasa totalof twenty
different switching commands, consisting of ten
‘on’ commands and ten ‘off’ commands.
Each ‘on’or ‘off’ command can be used to switch
the boiler ‘on’ or ‘off’ at the same time:
● Every day of the week
●Monday to Saturday
●Monday to Friday
●Saturday and Sunday
Example
Group of days On Off Commands
used
Mon. to Fri. 06.00 09.00 2
Mon. to Fri. 16.00 21.00 2
Sat. & Sun. 08.30 10.30 2
Sat. & Sun. 17.00 23.00 2
Total 8 used
Commands ‘free’ 12 unused
5.2.1 BEFORE PROGRAMMING
Gently press and release the ‘Res.’ button with a
pencil or similar, this will clear the memory of all
information. This should only be done when you
want to change or insert a complete new pro-
gramme.
5.2.2 SETTING THE TIME OF DAY
The ‘real time’ clock has to be set to the actual
day of the week and time of day, to do this:
●Press and hold the button (see fig 2).
●Pressthe ‘Day’button untiltheactual dayshows
in the display (1= Monday, 2= Tuesday, 3=
Wednesday,etc.).
●If setting the clock during ‘British summertime’
press the ‘+/-1h’ button once (use a pencil or
similar).
●Pressthe ‘h’buttonuntil theactual hourisshown
in the display.
●Press the ‘m’button until the actual minutes are
showing in the display.
●Now release the button.
●The ‘:’ symbol between the hours and minutes
display will start to flash, this indicates that the
clock is now keeping time (see fig. 3).
Fig. 1
Fig. 2 Fig. 3
5.2.3 ENTERING (on) COMMANDS
●Repeatedly press the Prog. Button until the —
:—symbolappears in the clock display (see fig.
4).
●Press the Day button until the desired group of
days or desired day is shown.
●Press the ‘h’ button until the desired hour for
switching the boiler on is shown.
●Press the ‘m’ button until the desired minutes
are shown.
●Press the Select button until the symbol is
shown (see fig. 5).
●Press the button.
Fig. 4 Fig. 5
5.2.4 ENTERING (off) COMMANDS
●Repeatedly press the Prog. Button until the —
:— symbol appears in the clock display (fig. 4).
●Press the Day button until the desired group of
days or desired day is shown.
●Press the ‘h’ button until the desired hour for
switching the boiler off is shown.
●Press the ‘m’ button until the desired minutes
are shown.
●Press the Select button until the symbol is
shown (see fig. 6).
●Press the button.
Vokera Digital Time Clock
Select Button
Reset Button
Programme Button
Clock Button
Day Button
Display
Minute Button
Hour Button
'British Summertime' Button

9
Mynute
Oncethe programming has been completed you willhave
to press the Select button – once only – to the (on)
position if the boiler has been programmed to be ‘on’ at
that particular time.
5.2.5 ADVANCING OR LOCKING PROGRAMME
COMMANDS
By pressing the Select button you can advance
the time clock to the next command setting (from
‘on’to ‘off’or ‘off’to ‘on’) or lock the time clock to a
particular command (‘on’ continuously or ‘off’
continuously).
●- ON
●- OFF
●[] – ON CONTINUOUSLY
●[] – OFF CONTINUOUSLY
NOTE
The actual time can be changed to account for
British summertime by simply pressing then re-
leasing the +/- 1h button.
HELPFUL HINTS
●You can check and/or alter the programme
settings at any time by pressing the Prog but-
ton.
●The number of unused ‘commands’ can be
checked by pressing the Prog button until FR is
displayed alongside the number of unused
commands.
●In the event of a power failure, the clock has a
battery back-up. The programme will be held in
the memory for approximately 2 weeks.
Charging time is 70 hours.
●Take a note of the settings you have pro-
grammed,as localpower surgescansometimes
Fig. 6
VOKERA PROGRAMMERS

10 Mynute
SETTING INSTRUCTIONS FOR THE VOKERA 7 DAY 2 CHANNEL PROGRAMMER
TheVokera2channel7dayprogrammerwillautomatical-
ly switch your central heating system ON and OFF once,
twice or three times a day, whichever you wish and at
whatever times you choose each day of the week.
It incorporates a rechargable 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
day of the week and time of day.
Itmustthenbetoldatwhattimesyouwantittoswitchyour
Central Heating (CH) and Hot Water (HW) system ON
and OFF for each day of the week. This set of switching
times is known as a programme.
The programmer has an in-built programme of standard
switchingtimes.Theymaywell berightforyou,butifthey
are not exactly what you want you can change them.
The standard programme is shown in the table on the
following page, and, for simplicity, the switching opera-
tions are described as ON1, OFF1, ON2, OFF2, ON3,
OFF3 from now on.
SETTING THE CLOCK
Use the chart to plan your own programme before
proceeding.
Switch on the mains supply to the boiler, then switch the
mode selector switch (1) 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 day part of the display will flash. Use +
and-buttonstochangetothecorrectdaythenpressSET
again.
Thiswillcausethehourpartofthedisplaytoflash.Usethe
+and -buttons to change to the correct hour (check AM
orPM)thenpressSET again.This willcause theminutes
part of the display to flash. Again use the +and -buttons
tochangetheminutesasrequired,thenpressSETagain.
The display will now show
(see later instructions for changing your programme).
Press the SET again
The display will now show
(again see later instructions)
Press the SET button again.
The display will show
(again see later instructions about this holiday setting
feature). Press SET once again and the display will show
actual time of day and day of the week you have set.
PROGRAMME TEST
As described earlier, there is a place in the programming
sequencewhereyouwillbegiventheopportunitytopress
YES when the display shows TEST ? This feature is
available so you can quickly run through the ON and OFF
times set to make sure they are what you want.
Answer YES and the display will show a time just past
midnight on the morning of the day of the week you are
actually in. Now press and hold down the YES button
again.The time display will start to “run”andwill pause for
2-3secondswhenitreachestheON1timeforthatday,the
ON indicatorlight will be energisedaswill the circuit being
controlled. If you release the YES button the display will
stop running and give you more than 2-3 seconds to think
about a switching time.
ContinuepressingYESandthedisplaywillnow“run”tothe
OFF1timewhenitwillpauseagainandthetimeswitchwill
switchoff.Itwillthen“run”totheONandOFFtimesinturn,
pausing at each before moving to the next day and
identifying the ON and OFF times in the same way.
Theprogrammerwill continueidentifyingtheON and OFF
times in this way for each day in sequence until you press
the SET button when it changes to the holiday setting
mode. Pressing SET button again returns the module to
normal operating mode.
HOLIDAY SETTING
NOTE: this useful feature allows you to set the number of
days you want your system to be permanently off before
automatically switching on at the programmed time.
The programmer counts each pass through mid-night as
one day, so if on Saturday morning you don’t want the
systemonagainuntilTuesdaymorningyousetthecounter
to 3. If when the display shows SET H’DAY ? you press
the YES button the display will show OO. By using the +
and- buttonsyoucannowsetthenumberofdaysyouwant
the system to be off, a maximum of 99 days is possible.
Now press SET again and the display will be blank apart
fromH’DAY.Havingcounteddowntozero,theprogrammer
willswitchthesystemonatthetimessetforthatday.Ifyou
wish to cancel the H’DAY setting, press any button and
normal operation will be resumed. Your module is now in
the operating mode and ready to work using the built-in
standard programme times.
SET
CLOCK ?
SET
PROG ?
TEST ?
SET
H'DAY ?

11
Mynute
SWITCHING MONDAY - FRIDAY SATURDAY - SUNDAY
H/W C/H H/W C/H
6.30am 6.30am 6.30am
12 noon
10.30pm
6.30am
8.30am 8.30am 9.00am 9.00am
12 noon 12 noon
12 noon 12 noon 12 noon 12 noon
4.30pm 4.30pm 4.00pm 4.00pm
11.00pm
10.30pm 11.00pm
OFF1-End of first timed period (OFF)
ON2-Start of second timed period (ON)
OFF2-End of second period (OFF)
ON3-Start of third period (ON)
OFF3-Final switch 'OFF'
ON1-Start of first timed period of day (ON)
PROGRAMME OPTIONS
Hot water and central heating can be operated
independantly.
Theprogrammergivesyou4optionsforbothCHandHW:
OFF - Off all the time
TIMED - On/Off at all periods set in programme
ONCE - On for one period each day (ON1 >> OFF3)
ON - On all the time
Obtain the options you require by using the SELECT
buttons to move the arrows in the display to the appropri-
ate positions. Your module is now working using the
standardprogramme times. Ifthesesuit your needs there
is nothing else to do.
You can temporarily override the normal switching times
bypushingabuttonmarkedADVANCE.ThisswitchesON
to OFF to ON as you require, but the normal programme
switching times will not be permanently affected. If you
want to make changes to the programme, it is suggested
you write them down before making the changes.
CHANGING YOUR PROGRAMME
With the module in the operating mode and the display
showingtheactualtime ofday,press theSET button.The
displaywillagainshowSETCLOCK?butthishasalready
been done so push the SET button again.
The display will again show SET PROG ? and as it is the
programme settings which are to be changed press the
YES button.
The display will show
NOTE:thegroupingofdaysinthiswayistoenabletimings
whichapplytoeachandalloftheweekdays tobe setfirst,
followedbytheopportunitytochangeoneormoretimings
for any single day.
If you wish to set timings which will be the same for each
weekday press the YES button.
The display will show
press YES and make the changes or press SET if no
changes are required.
The display will now show
press YES to make changes or SET if no changes are
required.
The display will now show
pressYESifyouwishtomakechangestoMondaytimings
or press SET to change the display to SET TUE PROG ?
Again press YES to make changes to Tuesday timings or
continuetooperatetheSETbuttontoaccesseachweekday
in turn.
If you press YES to make changes to the settings for a
particular day, the display will firstly show SET CH
Press YES will allow changes to be made to the central
heating settings, but pressing SET will cause the display
to show SET HW Press YES will allow the changes to be
made to the hot water settings, a further press of SET will
move the display on the next day.
AfteranyFridaychangeshavebeenmadepressSETThe
display will show
This gives you the chance to set timings which will apply
to both weekend days by answering YES. Further opera-
tionoftheSETbuttonaccessesSATandSUNforindividual
timing changes.
Pressing SET after finishing any weekend programme
changes, or pressing SET in answer to SET PROG ?
returnsthemoduletoTEST? PressingSETagaindisplay
SETHOL ? PressingSET againreturns themoduleto the
normal operating mode.
SET
PROG ?SAT SUN
SET
PROG ?
MON TUE WED THU FRI
MON TUE WED THU FRI
SET
PROG ?
CH
MON TUE WED THU FRI
SET
PROG ?
HW
PROG ?
SET
MON
SETTING INSTRUCTIONS FOR THE VOKERA 7 DAY 2 CHANNEL PROGRAMMER
12 noon

12 Mynute
If you answer YES to any of the detailed programming
questions the following steps will apply.
The display will show the time set for the first switch on
(ON1) to occur for the day(s) concerned. This can be
alteredinstepsof10minutesbyuseofthe+and-buttons.
Whenthedisplayisshowingthetimeyouwant,pressSET
and the OFF1 time will be seen.
Again changes may be made with the +and - buttons
before pressing SET to show the time for ON2 to occur.
After making any adjustments press SET
againtogettheOFF2timedisplayed. Repeatthisoperation
for the ON3 and OFF3 settings. This may be set up to 23
hours 50 minutes after the first switch on time.
FurtheroperationsoftheSETbuttonwilltakeyouthrough
anyremainingdaysoftheweek tobeprogrammedbefore
arriving at the operating mode and ready to work at the
times you have set.
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 OFF3 afte midnight so
long as you don’t try to exceed 23 hour 50 mins after
ON1.
3. The switching times have to be in sequence
(ON1,OFF1,ON2,OFF2,ON3 and OFF3) 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. be-
tween 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.Thesamefeatureapplieswiththeother
ON andOFF times andalso betweentheOFF andON
times.
5. TouseonlytwoswitchingperdaysettheON2&OFF2
times both to 12.00
6. If you get confused and wish to start the whole
programming procedure again, press the SET and +
buttonstogetherfor 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.
7. 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.
8. ToshuttheCHdownfortheSummersimplyselectthe
OFF option by means of the CH SELECT button.
SETTING INSTRUCTIONS FOR THE VOKERA 7 DAY 2 CHANNEL PROGRAMMER

13
Mynute
SETTING INSTRUCTIONS FOR THE VOKERA 24HR 2 CHANNEL PROGRAMMER
TheVokera2channel24hrprogrammerwillautomatically
switch your central heating system ON and OFF once or
twiceaday,whicheveryouwishandatwhatevertimesyou
choose.YoualsohavetheoptiontoobtaincontinuousON
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.
Itmustthenbetoldatwhattimesyouwantittoswitchyour
CentralHeating(CH)andHotWater(HW)systemONand
OFF.Thissetofswitchingtimesisknownasaprogramme.
The programmer has an in-built programme of standard
switchingtimes. Theymaywellberightfor you,but ifthey
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
Usethechartoverleaftoplanyourownprogrammebefore
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
questionandthehourpartofthedisplaywillflash.Usethe
+and-buttonstochangetothecorrecthour(checkAMor
PM) then press SET again.
Thiswillcausetheminutespartofthedisplaytoflash. Use
the+and-buttonstochangetheminutesasrequired,then
press SET again.
The display will now show
(see later instructions for changing your programme).
Pressthe SET buttonagain and thedisplay will nowshow
the time of day you have set.
Yourprogrammeris nowinthe operatingmodeandready
to work using the built-in standard programme times.
CHANGING YOUR PROGRAMME
With the module in the operating mode and the display
showingtheactualtimeofday,presstheSETbutton. The
displaywillagainshowSETCLOCK?butthishasalready
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 ?.
AgainyouhavetoanswerthequestioneitherwiththeYES
button or by pressing the SET button which returns the
programmertothenormaloperatingmodewiththetimeof
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.
Againchangescanbemadeusingthe+&-buttonsbefore
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
foradjustingtheHWtimingsbeforepressingSETonefinal
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
otherswitchingtimese.g.betweenOFF1andON2,this
time the ON symbol will flash.
4. If you attempt to set the ON1 after the OFF1 time, the
ONsymbolwillflashandtheOFF1settingwillfollowthe
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

14 Mynute
PROGRAMMER OPTIONS
Hot water and central heating can be operated independ-
ently.
The programmer gives you 4 options for both CH & HW:
OFF - Off all the time.
TIMED - On/Off at all periods set in programme.
ONCE - On for one period each day (ON1 > OFF2).
ON - On all the time.
Obtain the options you require by using the SELECT
buttons for CH & HW to move the arrows in the display to
the appropriate position.
Press the SET button again and the question SET HW
PROG ? will be displayed.
STANDARD PROGRAM FOR 24HR 2 CHANNEL PROGRAMMER
SWITCHING STANDARD PROG.
H/W
6.30am
8.30am
4.30pm
10.30pm
C/H
6.30am
8.30am
4.30pm
10.30pm
ON 1 - Start of first timed period of day (ON)
OFF 1 - End of first timed period (OFF)
ON 2 - Start of second timed period (ON)
OFF 2 - Final switch (OFF)
SETTING INSTRUCTIONS FOR THE VOKERA 24HR 2 CHANNEL PROGRAMMER

Registered address:
Vokèra Ltd
Borderlake House
Unit 7 Riverside Industrial Estate
London Colney
Herts AL2 1HG
[email protected]
www.vokera.co.uk
www.vokera.ie
Sales, General Enquires
T0844 391 0999
F0844 391 0998
Vokèra Ireland
West Court, Callan
Co Kilkenny
T056 7755057
F056 7755060
Vokèra Limited reserve the right to change
specification without prior notice
Consumers statutory rights are not affected.
A Riello Group Company.
Company Reg No: 1047779
2.dE-40/21-87232001.doC