VOKERA option User Instructions

Supplied By www.heating spares.co Tel. [phone]

Users
Instructions

THESE INSTRUCTIONS
TO BE RETAINED
BY USER

Supplied By www.heating spares.co Tel. [phone]

Dear Customer

Your Option 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

4

1

1 Mode selector switch

2 Fault indicator LED

3 Time clock

4 Low pressure indicator LED

Fig. 1

3

2

Before use…

Introduction Page 3
Gas safety Page 3
Electrical supply Page 3
Explanation of controls Page 3
Explanation of features Page 4
Guarantee register card and appliance log book Page 4

How to…

Use the appliance for the first time Page 4
Use the mode selector switch Page 3
Set the timer Page 3
Re-pressurise or top-up the system Page 4
Shut down the system for short periods Page 5
Shut down the system for long periods Page 5
Care for the appliance Page 5

What if…

I frequently ‘ top-up’ or ‘re-pressurise’ the system Page 5
The fault light is on Page 5

A gas leak is suspected Page 5
I need to call an engineer Page 5
The boiler is due its annual service Page 5
I want to extend the warranty Page 5

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INTRODUCTION

Your Vokera Option is a combination boiler supplying
central heating and instantaneous domestic hot water.
Features included are an integral time clock, LED indica­tors showing the status of the appliance and system
pressure, 2-stage frost protection and anti-pump seize
function.

GAS SAFETY (Installation 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 competent person and in ac­cordance with the latest regulations.

Note; the appliance must have an electrical supply at all
times for the frost protection and anti-seize modes to
operate.

HOT WATER ONLY “ ”, when the mode selector
switch is in the ‘HOT WATER ONLY’ position, the appli-

ance will operate as above. However when a hot water
outlet is opened the appliance will operate to provide hot
water until the demand for hot water has been satisfied.
Note; the appliance delivers a fixed maximum flow rate of
hot water, therefore if a hot water outlet is turned on full,
it is most likely that you will be unable to obtain hot water
from another outlet at the same time.

ELECTRICAL SUPPLY

Please ensure that this appliance has been properly
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!

EXPLANATION OF CONTROLS

The Vokera Option has been designed for simplicity of
use, as a result there are only two controls – the mode
selector switch & the time clock – that can be accessed
by the user.

MODE SELECTOR SWITCH AT:
OFF “O”, when the mode selector switch is in the ‘OFF’

position, the appliance will not function for hot water or
heating. However the appliance will still operate in frost
protection mode, and if unused for a period of 24 hours,
will momentarily activate the pump to prevent seizure due
to non-use.

HEATING AND HOT WATER “ ”, when the
mode selector switch is in the ‘HEATING AND HOT

WATER’ position the appliance will operate as above.
However should the time clock be switched on automati­cally or manually, the appliance will operate to provide
heat to the central heating circuit until the demand has
been satisfied.
Note; if a room thermostat is fitted it must be calling for
heat before the appliance will operate.

TIME CLOCK

The Vokera Option is supplied with a built-in, 24-hour,
time clock that can be set to operate the appliance for
central heating. However it may be that your installer has
fitted an external time clock, (usually because of the
location of the appliance i.e. loft, basement, outhouse,
etc.) if so, please disregard the following instructions and
refer to those supplied with the external time clock.

Fig. 2

OFF period

ON period

Selector

switch

Setting the time

The time of day can be set by grasping the outer edge of
the black dial and turning it in a clockwise direction until
the correct time is in line with the white pointer.

Setting the ‘switching times’

The ‘ON’ periods are set by sliding the black tappets,
adjacent to the time periods required, to the outer edge
of the dial.

The tappets that remain at the centre of the dial will be the
‘OFF’ periods.

The smallest switching time (ON or OFF) is 15 minutes.
To select ‘Timed’ mode move the selector switch in the

middle of the clock face to the ‘ ‘ position.
To select ‘Constant’ mode move the selector switch in

the middle of the clock face to the ‘I’ position.
To select ‘Off’ mode move the selector switch in the

middle of the clock face to the ‘O’ position.

3

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EXPLANATION OF FEATURES

Although the Vokera Option has been designed for
simplicity of use, it utilises the latest in boiler technology,
enabling a host of functions to be carried out simultane­ously.

FROST PROTECTION MODE

Should the temperature of the appliance fall to 7ºC. the
pump will be activated for a period of 15 minutes or until
the temperature of the appliance rises to 10ºC. This will
be repeated every two hours. Should the temperature of
the appliance fall to 5ºC. the burner will ignite until the
appliance temperature rises to 30ºC.

AUTOMATIC HEATING REGULATION

The boiler will automatically adjust its output temperature
to suit site conditions. However, your installer may have
adjusted this setting during commissioning.
Please refer to the installation instructions for full details.

ANTI-SEIZE FUNCTION

Should the appliance remain inactive for a period of 24
hours, the pump will be activated for a few seconds to
prevent seizure.

HOW TO…

●

USE THE APPLIANCE FOR THE FIRST TIME

Before switching the appliance on please familiarise
yourself on how to isolate the appliance from the electric­ity, gas, and water supplies. If in doubt contact your
installer.

Turn the mode selector switch to the OFF position, switch
on the electrical supply to the appliance. The green LED
should be illuminated, (if any other LED’s are illuminated
it indicates the system may require ‘topping up’ or a fault
exists, if so, refer to status indicators section before
continuing) you may now select either HOT WATER
ONLY or HEATING AND HOT WATER.

●

OBTAIN HOT WATER

By turning on a hot water outlet (tap) the boiler will fire to
deliver hot water.
The appliance will have been commissioned by your
installer to deliver hot water at both a reasonable tem­perature and flow rate, should you wish to increase the
temperature of the hot water simply reduce the flow of
water as it comes out of the tap. Please consult your
installer for further advice if required.

APPLIANCE STATUS INDICATORS

The Vokera Option has 3 status indicators that show if the
appliance is working normally, if it needs ‘topping up’ or
re-pressurising, or if it has a fault (see below).

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.

APPLIANCE LOG BOOK

A logbook is supplied with the boiler. This important
document must be completed during the installation/
commissioning of your boiler. Failure to install and
commission the appliance in accordance with the manu­facturers instructions may invalidate the warranty. This
does not affect your statutory rights.
Please keep your logbook handy, as you will be asked to
quote certain information from the logbook should you
need to contact Vokera Ltd. In the unlikely event of a
problem occurring with your appliance.

●

OBTAIN CENTRAL HEATING

When the time clock is in an ‘on’ position, and the room
thermostat – if fitted – is calling for heat, the boiler will
fire to provide central heating.

●

RE-PRESSURING THE SYSTEM

The system will need re-pressurising if both the red and
yellow LED’s are illuminated. Locate the filling valve and
if necessary connect the loop (see fig. 3) slowly open the
valve until you hear the water entering the appliance. The
red LED will go out first, followed by the yellow LED. Once
the yellow LED has gone out, close the filling valve and
disconnect the loop. The appliance must not be operated
until the system has been re-pressurised. If in doubt
contact your installer.

STATUS INDICATORS

Green LED Yellow LED Red LED Reason Action required
On/flashing Off Off Appliance is ok None
On On Off Low pressure Requires ‘topping-up’

Off On On Zero pressure Requires ‘re-pressurising’

Off Off On Internal fault Reset, see page 5
Off Off Flashing Lockout fault Reset, see page 5
Off Off Off No power, blown fuse, Ensure power supply to

Internal fault Boiler is on, check fuse,

4

See page 5

See page 4

Contact engineer

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●

TOPPING UP THE SYSTEM

The system will need topping up if the yellow LED is
illuminated. Locate the filling valve and if necessary
connect the loop (see fig.3) slowly open the valve until
you hear the water entering the appliance. Once the
yellow LED has gone out, close the filling valve and
disconnect the loop. The appliance may be operated
whilst the yellow LED is illuminated. If in doubt contact
your installer.

●

SHUT DOWN THE SYSTEM FOR SHORT PERIODS

The system can be shut down for short periods by simply
turning the mode selector to the OFF position. It is also
advisable to turn off the main water supply to the house.

●

SHUT DOWN THE SYSTEM FOR LONG PERIODS

If the house is to be left unoccupied for any length of time
– especially during the winter - the system should be
thoroughly drained of all water. The gas should be turned
off at the meter and the main water supply should be
turned off at the stopcock. If necessary contact your
installer for further advice.

●

CARE FOR THE APPLIANCE

To clean the outer casing use only a clean damp cloth. Do
not use any scourers or abrasive cleaners.

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.

●

I FREQUENTL Y ‘TOP-UP’ OR ‘RE-PRESSURISE’ THE

SYSTEM

If the system regularly requires topping-up or re-pressu­rising, it may be indicative of a leak. Please contact your
installer and ask him to inspect the system.

Fig. 3

●

THE FAULT LIGHT IS ON

If the red LED is illuminated it indicates that the appliance
has ‘locked-out’ or has an internal fault. To reset the
appliance, make sure the gas supply is on to the appli­ance. Turn the mode selector switch to the OFF position
for a few seconds and then turn it back to its previous
position. If the red LED stays on or is illuminated after a
few seconds call an engineer.
NOTE, if both the red and yellow LED’s are illuminated,
the system requires to be re-pressurised. (See page 4)

●

THE APPLIANCE IS DUE ITS ANNUAL SERVICE

Please contact Vokera Customer Services (0870 333
0220 U.K. or 05655057 R.O.I.) if you would prefer a

Vokera service engineer or agent to service your appli­ance. Alternatively your local CORGI registered engi­neer may be able to service the appliance for you. If you
are a tenant your landlord will arrange for servicing.

●

I NEED TO CALL AN ENGINEER

If you think your boiler may have developed a fault, please
contact your installer or Vokera customer services.
(0870 333 0220 U.K. or 05655057 R.O.I.) Have all your

details to hand including full address and postcode, rel­evant contact numbers, and your appliance logbook.

●

I WANT TO EXTEND THE WARRANTY
Vokera offer extended warranties on all current Vokera
appliances, simply contact customer services (0870 333
0220 U.K. or 05655057 R.O.I.) for further information.

5

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MINIMUM CLEARANCES
Please observe the following minimum clearances required for the safe operation and maintenance of this appliance

Above the appliance 150mm 6 inches
Below the appliance 150mm 6 inches
Left hand side of appliance 50mm 2 inches
Right hand side of appliance 12mm _ inches
In front of appliance 600mm 24 inches

Supplied By www.heating spares.co Tel. [phone]

Supplied By www.heating spares.co Tel. [phone]

Vokèra Ltd.

Web. www.vokera.co.uk

Cod. 10020900 - Ed. 1

Southern Region. Morson Road, Enfield, Middlesex EN3 4NQ. Sales. 020 8216 6300. Fax. [phone].

Parts. 020 8216 6310. Technical Helpline. 020 8216 6320. Customer Services. 0870 333 0220.

Email. [e-mail]

Northern Region. Stubs Beck Lane, West 26 Business Park, Whitehall Road, Cleckheaton, West Yorkshire BD19 4TT. Sales. 01274 866100.

Fax. [phone]. Parts. 01274 866140. Technical Helpline. 01274 866110. Customer Services. 0870 333 0220.

Scottish Region. Shuna Street, Maryhill, Glasgow G20 9NW. Sales. 0141 945 6800. Fax. [phone].

Parts. 0141 945 6820. Technical Helpline. 0141 945 6810. Customer Services. 0870 333 0220.

Vokèra Ireland. West Court, Callan, Co. Kilkenny, Ireland. Sales/Parts. 056 55055.

Fax. [phone]. Technical Helpline / Customer Services. 056 55057.

Email. [e-mail]

Email. [e-mail]

Email. [e-mail]

Vokèra Ltd. reserve the right to change the specifications without prior notice. Consumers’ statutory rights are not affected.