VOKERA Syntesi e User manual

User
Instructions
THESE INSTRUCTIONS
TO BE RETAINED
BY USER
e

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Contents
Page
Introduction Dear customer 1
Do’s and don’ts 1
Things you should know 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 Additional features 3
1.7 Dimensions 3
1.8 Clearances 3
1.9 Filling valve 4
Getting started 2.1 Before switching on 4
2.2 Appliance controls 4
2.3 Lighting the boiler 4
How to… 3.1 Top-up the system 5
3.2 Reset the appliance 5
3.3 Understand the diagnostic fault codes 5
3.4 Shut down the system for short periods 5
3.5 Shut down the system for long periods 5
3.6 Care for the appliance 5
What if… 4.1 I suspect a gas leak 6
4.2 I frequently have to top-up the system 6
4.3 The status LED is flashing Red 6
4.4 The appliance is due its annual service 6
4.5 I need to call an engineer 6
Setting the Vokera…. Remote-control (RC05) 6
Mechanical clock 9
Digital clock 9
Dear Customer
Your “Syntesi e” boiler has been designed to meet and exceed the very latest standards in gas central heating
technology and if cared for, will give years of reliable use and efficiency. Please therefore take some time to read
these instructions 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
●Do not forget to have the appliance serviced annually
●Do ensure that your installer or engineer uses only genuine Vokera spare parts
INTRODUCTION

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1. Pressure gauge
2. Clock aperture
3. N/A
4. Hot Water temperature selector
5. Mode selector switch
6. Status LED
7. Digital display
8. Heating temperature selector
9. DHW request LED
Fig. 1
Fig. 2
INTRODUCTION
Filling valve
Filling Loop
Isolating valve
45 786
123
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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
installed and correctly maintained by a compe-
tent person and in accordance with the latest regu-
lations.
1.2 ELECTRICAL SUPPLY
Please ensure that this appliance has been prop-
erly connected to the electrical supply by means
of 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.This important document must be completed
during the installation/commissioning of your boiler.
All CORGI Registered Installers carry a CORGI
ID card and have a registration number.Both shoulf
be recorded in your Benchmark Log Book. You
can check your installer by calling CORGI direct
on 01256 372300. Failure to install and commission
the 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 Syntesi e boiler is a combined central
heating and hot water boiler. The Syntesi e
supplies heated water to your radiators and
provides hot water when a hot water outlet is
opened.
Your Syntesi e boiler can be controlled by sev-
eral different types of controls such as:
●Integral time clock
●External time clock
●Vokera remote-control
●Programmable room thermostat
It’s therefore necessary to ensure that these in-
structions are read in conjunction with the instruc-
tions supplied with the relevant control.
The Syntesi e lights electronically and does not
have a pilot light.
In the unlikely event of a fault developing with
your boiler, the supply of gas to the burner will be
terminated automatically.
1.6 ADDITIONAL FEATURES
Your Syntesi e boiler includes some of the latest
features that have been designed to ensure con-
tinued safety and reliability of the appliance.
These include:
●appliance frost protection
●hot water pre-heat
1.7 DIMENSIONS
HEIGHT 820mm
WIDTH 400-500mm depending on model
DEPTH 355mm
1.8 CLEARANCES REQUIRED
ABOVE 150mm
BELOW 150mm
SIDES 12mm
FRONT 600mm
●pump, valve actuator & fan anti-block
●diagnostic fault codes
●LED status indicator
●digital display
FROST PROTECTION
Your Syntesi e boiler will automatically operate
to minimise the risk of frost damage to the boiler
itself.The frost protection device will be disabled
should the power supply to the boiler be dis-
rupted.
HOT WATER PRE-HEAT
The Syntesi ’s pre-heat facility ensures that the
boiler responds quickly to any hot water requests.
PUMP, ACTUATOR, & FAN ANTI-BLOCK
When the boiler has not been used for more than
24 hours, the pump, fan & valve actuator, are en-
ergised for a few seconds to ensure that they does
not stick or jam. This function will be disabled
should the power supply to the boiler be dis-
rupted.
DIAGNOSTIC FAULT CODES
In the unlikely event of a fault developing, the
boiler displays a unique fault code that helps iden-
tify where the fault lies.
LED STATUS INDICATOR
The Syntesi e is equipped with an LED status indi-
cator that gives a visual indication of whether the
boiler is working normally or has developed a
fault.
DIGITAL DISPLAY
The digital display shows the current tempera-
ture of the hot water or heating outlet (depend-
ing on mode of operation).In addition, it also dis-
plays a unique fault code in the unlikely event of
the boiler malfunctioning.
THINGS YOU SHOULD KNOW

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2.1 BEFORE SWITCHING ON
Before switching the appliance on please famil-
iarise 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 boiler control
●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
press the top centre of the flap, release and pull
downwards.
The appliance has a mode selector switch, vari-
able thermostats for controlling the temperature
of the heating flow outlet and the hot water outlet,
system pressure gauge and an aperture for an
integral clock.The mode selector switch has three
positions:
●hot water only
●off
●heating & hot water
The variable hot water thermostat allows you to
set the temperature of the water to your hot wa-
ter taps between 37.5°C (min) and 65°C (max).
The appliance will have been commissioned by
your installer to deliver hot water at both a rea-
sonable temperature and flow rate.
Should you wish to increase the temperature of
the hot water and the hot water thermostat is al-
ready set at maximum, simply reduce the flow of
water as it comes out of the tap. Please consult
your installer for further advice if required.
The variable heating thermostat allows you to set
the temperature of the water to your radiators be-
tween 40°C (min) and 80°C (max).
The pressure gauge shows the current pressure
of the system, the gauge should be set between
1 and 1.5 bar. When the appliance is operating
the gauge may rise or fall slightly, this is quite
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 the Vokera remote control fitted, if
so, supplementary instructions can be found at
the back of this booklet. If an external time clock
has been fitted, please refer to the instructions
supplied with such.
2.3 LIGHTING THE BOILER
Ensure the gas and electrical supplies to the boiler
are turned on.
Turn the mode switch to the‘heating & hot water’
position.The status indicator should be ‘Green’if
the status indicator is flashing ‘Red’ refer to 3.2.
Refer to the particular instructions for the type of
time clock or control fitted and ensure there is a
demand for heating. If there is a room thermostat
you should ensure that this is also calling for heat.
When there is a demand for heating via the above
controls the boiler will go through an ignition se-
quence, whereby the burner will light.
If the appliance fails to ignite during the ignition
sequence, allow a period of two minutes before
re-setting.
To adjust the output temperature of the appliance
turn the thermostat knob clockwise to increase
or anti-clockwise to decrease.
When the appliance reaches the set tempera-
ture, the burner will go off for minimum period of
approximately 3 minutes.
When the time clock or external thermostats heat-
ing request has been satisfied, the appliance will
switch off automatically.
When the mode selector switch is in the hot wa-
ter only or heating & hot water position, the boiler
will light to supply hot water whenever a hot wa-
ter outlet (tap) is opened.
Periodically the appliance will light on minimum
output as a function of the pre-heat facility.
Fig. 3
Normal
Operating
Position
Filling
Position
Closed
Position
1.9 FILLING VALVE
The filling valve is located underneath the boiler.
The filling valve lever has 3 positions:
●normal operating position
●closed position
●filling position.
The valve lever should never be turned to the fill-
ing position unless the filling loop has been con-
nected and the system pressure requires topping-
up (see 3.1).
GETTING STARTED

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3.1 HOWTOTOP-UPTHE 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
the pressure requires‘topping-up’ use the follow-
ing instructions as a guide.
●Locate the filling valve connections (below the
boiler).
●Attach the filling loop to both connections.
●Open the isolating valve (Left) slowly.
●Move the filling valve (Right) slowly to the fill
position (fig. 3) until you hear water entering the
system.
●Move the filling valve back to its normal posi-
tion (fig. 3) when the pressure gauge (on the
boiler) reads between 1 and 1.5 bar.
●Close the isolating valve
●Remove the filling loop from the connections.
3.2 HOWTO RESETTHE APPLIANCE
When the LED status indicator is flashing red,
the appliance will require to be reset manually.
Using the mode selector switch, turn it to the OFF/
RESET position, then turn it back to the ‘hot wa-
ter only’or ‘heating & hot water’position (see also
3.3).
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 DIAGNOSTIC FAULT CODES
Display shows Action required
01 Burner has failed to ignite.
Ensure gas meter is turned on.
Wait two minutes before resetting.
If problem persists call engineer.
02 Boiler has over-heated, wait 5 minutes.
for boiler to cool. Reset boiler.
If problem persists call engineer.
03 Flue problem.
Call engineer.
04 Low water pressure. Ensure pressure
gauge is above 0.5 bar (see 3.1).
Reset boiler.
05 Communication fault (RC05 only).
Call engineer.
06 Boiler fault.
Call engineer.
07 Boiler fault.
Call engineer.
08 Burner over-heat.
Call engineer.
d1 & d2 Problem with condense
trap/pipe/sensor.
Call engineer.
3.4 HOW TO SHUT DOWN THE SYSTEM FOR
SHORT PERIODS
The system and boiler can be shut down for short
periods by simply turning the time clock or boiler
control to the off position (see the instructions sup-
plied).It is also advisable to turn off the main water
supply to the house.
3.5 HOWTO SHUT DOWNTHE SYSTEM FOR LONG
PERIODS
If the house is to be left unoccupied for any length
of time – especially during the winter – the sys-
tem should be thoroughly drained of all water.
The gas, water, and electricity supply to the house
should also be turned off. For more detailed ad-
vice contact your installer.
3.6 HOWTO CARE FORTHE APPLIANCE
To clean the outer casing use only a clean damp
cloth. Do not use any scourers or abrasive clean-
ers.
HOW TO.....

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INTRODUCTION
The Vokera RC05 remote control is an optional acces-
sory that enables the boiler and its functions to be con-
trolled from another location from that of the boiler. The
RC05 can be used a room thermostat or programmable
room thermostat and can also be connected to an out-
side temperature sensor.
When the RC05 is connected to the boiler the controls on
the boiler are over-ridden by the RC05.
These instructions should be read in conjunction with the
RC05 instructions if your installer has connected an RC05
remote control to your boiler.
QUICK-REFERENCE GUIDE
Boiler switched off – OFF is shown in the display
Hot Water only – press until the symbol is
shown in the display. To adjust the hot water outlet tem-
perature, press then press the +or –buttons until the
required temperature is displayed, press ENTER to store
the new setting.
4.1 WHAT IF I SUSPECT A GAS LEAK
If you suspect a gas leak, turn off the gas supply
at 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
If the system regularly requires topping-up, it may
be indicative of a leak. Please contact your in-
staller and ask him to inspect the system.
4.3 WHAT IFTHE STATUS LED IS FLASHING RED
If the red LED is flashing it indicates that the boiler
or system has developed a problem, when this
happens the boiler automatically shuts down and
requires to be reset manually (see 3.2).
WHAT IF....
VOKERA RC05 REMOTE CONTROL
4.4 WHAT IFTHE APPLIANCE IS DUE ITS ANNUAL
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 serv-
ice your appliance. Alternatively your local CORGI
registered engineer may be able to service the
appliance for you.
4.5 WHAT IF I NEEDTO CALL AN ENGINEER
If you think your boiler may have developed a
fault please contact your installer or Vokera Cus-
tomer Services (0870 333 0220 (UK) or 05677
55057 (ROI) have all your details to hand includ-
ing full address and postcode, relevant contact
numbers, and your completed appliance log
book.
Heating & Hot Water – press until both the &
symbols are shown in the display. To adjust the hot
water outlet temperature and/or Heating outlet tempera-
ture, press until the required symbol is flashing or
then press the +or –buttons until the required tem-
perature is displayed, press ENTER to store the new set-
ting.
Adjusting the room temperature setting – with the con-
trol set to the Heating & Hot Water mode, press ENTER
the currently set room temperature will begin to flash. Use
the +or –buttons until the required temperature is dis-
played, press ENTER to store the new setting.
FAULT CONDITION- the symbol and a fault code will
appear in the display. Press RESET to enable the appli-
ance to reset itself. Should an alarm code be repeatedly
displayed, consult the users guide for specific help. Al-
ways allow at least 2-minutes before resetting the ap-
pliance.

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Regulates the heating and domestic hot water temperature
Makes a temporary change in level
Programs the boiler
Changes mode (OFF-SUMMER-WINTER)
Sets cleaning and holiday function
Increases setting
Selects and confirms data and changes room temperature
Decreases setting
Releases boiler, reset data and tests display
DESCRIPTION OF CONTROL PANEL
DESCRIPTION OF BUTTONS
VOKERA RC05 REMOTE CONTROL

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DESCRIPTION OF DISPLAY
1 -Boiler lockout indicator
2 -Heat request indicator
3 -Heating indicator
4 -Domestic hot water indicator
5 -Economy level temperature indicator
6 -Comfort level temperature indicator
7 -Scheduled servicing indicator
8 -Room thermostat indicator
9 -Timer thermostat indicator
10 -Boiler control indicator
11 -Underfloor heating function indicator
12 -Thermoregulation status indicator
13 -Cleaning/holiday function indicator
14 -Telephone interface function indicator
15 -Time and error numeric display field
16 -Temperature numeric display field
17 -Daily schedule progress bar
18 -Week day display segments
19 -EXT, outdoor temperature
15 16
17 18
5
4
3
2
1
6
7
8
9
10
11
12
13
14
19
VOKERA RC05 REMOTE CONTROL

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5.1 SETTINGTHE MECHANICAL CLOCK
The Vokera mechanical time clock can automati-
cally switch your boiler on and off at the same
time 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 a pin is pushed towards the outside of
the clock face, the time clock is in an ‘on’ posi-
tion, 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 you wanted
the boiler to be on between 4.00PM 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.
5.2 SETTINGTHE DIGITAL CLOCK
The Vokera digital time clock will automatically
switch your boiler on and off. It has a total of 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
●any particular day.
VOKERA TIME CLOCK
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
Selector Switch
I= boiler “on” continously
=boiler working via time
clock
0= boiler “off” continously
“Correct time” Pointer
Vokera 24 Hour Mechanical Clock
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)
●press the‘Day’button until the actual day shows
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)
●press the ‘h’ button until the actual hour is
shown 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. 2 Fig. 3
Select button
British Summer-
time Button
Hour Button
Minute Button
Display
Day button
Clock button
Programme
button
Reset
button
Vokera Digital Time Clock

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5.2.3 ENTERING (on) COMMANDS
●Repeatedly press the Prog. Button until the —
:— symbol appears 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.
Once the programming has been completed you will have
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 COM-
MANDS
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.
Fig. 6
HELPFUL HINTS
●You can check and/or alter the programme set-
tings at any time by pressing the Prog button.
●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 local power surges can some-
times reset the memory of the clock.

Cod. 10025944 - 18/04 - Ed. 1
Vokèra Ltd.
4th Floor, Catherine House, Boundary Way, Hemel Hempstead, Herts, HP2 7RP
Email: [email protected] Web: www.vokera.co.uk
Sales, Technical Advice, General Enquiries - Tel: [phone] Fax: [phone]
After Sales Service - Tel: [phone]
Vokèra Ireland
West Court, Callan, Co Kilkenny
Tel: [phone] Fax: [phone]
Vokèra Ltd. reserve the right to change the specifications without prior notice. Consumers’ statutory rights are not affected.
A Riello Group Company
energizing home heating
“Vokèra”
supports Benchmark
COLLECTIVE MARK