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.
Linea HE
High efficiency combi boiler
Users
Instructions
2
Linea HE
Dear Customer
Your Linea HE 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’t’s
● 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.
Contents
Introduction Page
Dear customer 2
Do’s and don’t’s 2
Things you should know Page
1.1 Gas appliances 4
1.2 Electrical supply 4
1.3 Guarantee registration card 4
1.4 Benchmark log book 4
1.5 How does it work? 4
1.6 Dimensions 4
1.7 Clearances required 4
1.8 Frost protection system 4
1.9 Additional controls 4
Getting started Page
2.1 Before switching on 5
2.2 Appliance controls 5
2.3 Lighting the boiler 5
2.4 Adjusting the operating temperatures 6
2.5 Digital display 6
2.6 Fault code table 6
2.7 Information mode 7
How to... Page
3.1 Top-up the system pressure 8
3.2 Reset the appliance 8
3.3 Shut down the system for short periods 8
3.4 Shut down the system for long periods 8
3.5 Care for the appliance 8
3.6 Regulate the hot water temperature 8
What if... Page
4.1 I suspect a gas leak 9
4.2 I have to frequently to top-up the system 9
4.3 The reset light is on 9
4.4 The appliance is due its annual service 9
4.5 I need to call an engineer 9
INTRODUCTION
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Linea HE
Fig. 1
1= central heating temperature control
2= ON/OFF/RESET button
3= MODE button
4= INFO button
5= hot water temperature control
current water pressure
outside sensor
current appliance temperature
error code
current mode of operation
burner on
frost protection on
insufficient water pressure
Symbols description
Summer
Spring
Autumn
Winter
central heating temperature bar
hot water temperature bar
service request
reset
1
5
3
4
2
4
Linea HE
THINGS YOU SHOULD KNOW
1.1 GAS APPLIANCE
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 competent
person and in accordance with the latest regulations.
1.2 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!
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 should be recorded in your
Benchmark
Log
Book. You can check your installer by calling
CORGI direct on 01256 372300. Failure to install
and commision 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 Linea HE boiler is a high efficiency combination boiler, which supplies heated water to your
radiators and hot water to your taps.
The central heating is controlled via a time clock
and/or any thermostats that your installer may
have fitted. The boiler will light when a hot water
outlet (a tap) is opened. The boiler may also
function periodically to pre-heat the hot water heat
exchanger. The Linea HE boiler 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 DIMENSIONS
HEIGHT
WIDTH
DEPTH
845 mm
453 mm
390 mm
1.7 CLEARANCES REQUIRED
ABOVE
BELOW
SIDES
FRONT
150 mm
120 mm
12 mm
600 mm
1.8 FROST PROTECTION SYSTEM
The Linea HE is equipped with a built-in frost
protection system, this enables the boiler to override the time controls – if switched off – and
operate the burner and/or pump, should the temperature drop below 6 °C.
Please note that the frost protection system is
designed to protect the appliance only, should
frost protection be required for the central heating
system, additional controls may be required.
NOTE
The frost protection system is reliant on the appliance having a permanent electrical supply, and
being in a non-fault condition.
1.9 ADDITIONAL CONTROLS
Additional controls such as an external temperature sensor kit or under floor heating safety thermostat are available as optional accessories for
this appliance. You should consult your installer
and/or the supplementary instructions supplied,
on their use (if installed).
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Linea HE
GETTING STARTED
2.1 BEFORE SWITCHING ON
Before switching the appliance on please
familiarise 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;
● any external thermostats/time switches and
their functions;
● the appliance controls.
2.2 APPLIANCE CONTROLS (see fig. 1)
The appliance controls are concealed behind
the front cover. To gain access to the controls
simply push-in the release button to open the
cover. The appliance is equipped with a simple
control panel that can be used to alter or control
the following functions:
● ON/OFF selection;
● mode of operation;
● the outlet flow temperature to the central heating
system;
● the outlet temperature for domestic hot water.
In addition, the large LCD display shows the status
of the appliance:
● current mode of operation;
● current appliance temperature;
● current temperatures selected;
● current system water pressure.
The system water pressure display shows the
current pressure of the system, andWhen the
appliance is operating the display may rise or fall,
this is quite normal. The minimum permissible
level for the safe and efficient operation of the
appliance is 0.6 BAR. Should the pressure fall
below 0.6 BAR, the boiler may lockout.
Depending on the type of controls specified by
your installer you may have an external time clock
or programmer fitted, please refer to the instructions supplied with such.
2.3 LIGHTING THE BOILER
Ensure the gas and electrical supply to the boiler
are turned on.
Using figure 1 as a guide, locate and press the ON/
OFF selection button if the appliance isn’t already
switched on. The boiler will now go through a selftest sequence. On completion of the self-test
sequence, the boiler will be ready to provide
heating and/or hot water if required.
2.3.1 MODES OF OPERATION
When the appliance is switched on one of four
modes of operation can be selected:
● summer;
● spring;
● autumn;
● winter.
Summer
When the summer mode is selected, the appliance will respond to requests for Domestic Hot
Water (DHW). In the summer mode the TSC
(Temperature Stability Control) function is active.
All heating requests will be ignored.
Spring
When the spring mode is selected, the appliance
will respond to requests for Domestic Hot Water
(DHW). All heating requests will be ignored.
Autumn
When the autumn mode is selected, the appliance
will respond to requests for DHW and/or heating.
During the autumn mode, the SARA function
(Automatic Temperature Control), and the TSC
(Temperature Stability Control) are active.
Winter
When the winter mode is selected, the appliance
will respond to requests for DHW and/or heating.
During the winter mode, the booster function and
pre-heat function are active.
2.3.2 FUNCTIONS
●●
●●
● TSC: when the TSC function is active (sum-
mer/autumn) the appliance may over-ride the
selected DHW temperature in order to maintain
temperature stability.
● SARA: when the SARA function is active (au-
tumn) and the selected heating temperature is
set between 55o – 65oC, the appliance will
automatically raise the heating outlet temperature when the selected set temperature cannot
be achieved or maintained.
● BOOSTER: when the booster function is active
(winter), the appliance will automatically raise
the heating outlet temperature when the selected set temperature cannot be achieved or
maintained.
● PRE-HEAT: when the pre-heat function is active
(winter), the appliance will periodically heat the
DHW heat exchanger to reduce waiting time
during DHW requests.
● FROST PROTECTION: the frost protection
function is active at all times even when the
appliance ON/OFF selector is at OFF. Should
the temperature fall to 6 oC, the boiler will operate to reduce the risk of frost damage.
●●
●●
● ANTI-BLOCK: the anti-block function is active
at all times even when the appliance ON/OFF
selector is at OFF. Should the appliance be
inactive for 19-hours, both the pump and divertor
valve actuator will be energised for a short period
to reduce the risk of component seizure.
NOTE
The frost protection and anti-block functions are
reliant on the appliance having a permanent
electrical supply, and being in a non-fault condition.
2.3.3 HEATING REQUEST
When there is a demand for heating via the time
clock etc, the boiler will go through an ignition
sequence, whereby the burner will light.
When the appliance reaches the set temperature,
the burner will go off for minimum period of approximately 5 minutes.
When the programmer/time clock or external thermostats heating request has been satisfied, the
appliance will switch off automatically.
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Linea HE
2.6 FAULT CODE TABLE
Reason
Ignition anomaly
No flame detected
Restarts ignition
Wiring fault
Heat exchanger temperature
too high
Wiring fault
Wiring fault
Fan fault
Fan fault
Low water pressure
Low water pressure
Pressure gauge fault
Internal fault
Internal fault
Sensor fault
Wiring fault
Temperature anomaly
Temperature anomaly
Wiring fault
Temperature anomaly
Internal fault
Condense pipe blocked
Condense pipe blocked
Wiring fault
Code
10
11
12
13/14
20/21/22
23/31
30
32/34
33/35
40
41
42
50/51/52
53/54/55/56
60/61
62
70/72/74
71/73
75/76
77
80/90/91
92
93/95
94
Action required
Reset appliance, if fault continues, call engineer
Wait
Wait
Call engineer
Call engineer
Wait
Call engineer
Call engineer
Wait
Check/restore system pressure and reset
Check/restore system pressure
Call engineer
Reset appliance, if fault continues, call engineer
Reset appliance, if fault continues, call engineer
Call engineer
Call engineer
Call engineer
Wait
Call engineer
Call engineer
Call engineer
Call engineer
Wait
Call engineer
2.3.4 HOT WATER REQUEST
When a hot water outlet or tap is opened, the
boiler senses water flow and initiates an ignition
sequence. The boiler will modulate the output according to the temperature required, when the hot
water request has been satisfied, the boiler may
continue to operate if the pre-heat function is
active.
NOTE
If the appliance fails to ignite during the ignition
sequence, it will re-attempt ignition several times
before going to a lockout condition. Should this
occur, please allow a period of two minutes before
re-setting.
2.4 ADJUSTING THE OPERATING TEMPERATURES (see fig.1)
The temperature selector knobs can be rotated to
increase or decrease the currently selected temperatures. The display will show any increase or
decrease relative to the corresponding selector
knob.
2.4.1 ADJUSTING THE CENTRAL HEATING TEMPERATURES (see fig.1)
If an outside temperature sensor is not connected
to the boiler the heating selector can be adjusted
between 20 °C and 80 °C.
If an outside temperature sensor is connected to
the boiler (
on) the central heating temperature
is automatically calculated from the boiler in order
to have a room temperature of 20 °C. It is possible
to adjust this value with the heating selector knob
from - 5 °C up to + 5 °C.
2.4.2 ADJUSTING THE HOT WATER TEMPERATURES (see fig.1)
The hot water selector can be adjusted between
35° and 60 °C.
2.5 DIGITAL DISPLAY
The digital display shows the current mode of
operation and/or status of the boiler.
Should a fault develop, the display will show a
unique fault code that can be used to help rectify
the cause of the fault.
Should a fault code be displayed, check the
fault code table to identify the cause and course
of action to take.
Always wait 2-minutes before pressing the
reset button.
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Linea HE
2.7 INFORMATION MODE
The appliance keypad can be used to display
certain information on the working status of the
boiler. Push the Info button ( ) to enter the info
menu (fig. 2). The following information are shown
pushing subsequently the button:
Info 1 outside temperature (only if outside sensor
connected) (fig. 3)
Info 2 water pressure (fig. 4)
Info 3 CH temperature set (fig. 5)
Info 4 DHW temperature set (fig. 4.6)
.
Fig. 3
Fig.4
Fig. 5
Fig. 2
Fig. 6
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Linea HE
HOW TO...
3.1 HOW TO TOP-UP THE SYSTEM PRESSURE
(fig. 4)
The system pressure must be checked periodically to ensure the correct operation of the boiler.
The display should ideally be reading between
0.6 (minimum) and 1.5 (maximum) when the
boiler is in an off position and has cooled to room
temperature. If the pressure requires ‘topping-up’
use the following instructions as a guide.
● Locate the filling valve connections (beneath
the boiler).
● Attach the filling loop to both connections.
● Open the filling valve slowly until you hear water
entering the system.
● Close the filling valve when the displayed pres-
sure (on the boiler) reads between 1 and 1.5.
● Remove the filling loop from the connections.
3.2 HOW TO RESET THE APPLIANCE
When the display is flashing, or when the reset
icon is shown, the appliance will require to be
reset manually. Before resetting the boiler ensure
that the displayed pressure is indicating the correct level. Allow a period of two minutes to elapse
before pressing the reset button.
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 time clock to the off
position. It is also advisable to turn off the main
water supply to the house.
3.4 HOW TO 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, water, and electricity supply to the house
should also be turned off. For more detailed
advice contact your installer.
3.5 HOW TO CARE FOR THE APPLIANCE
To clean the outer casing use only a clean damp
cloth. Do not use any scourers or abrasive cleaners.
3.6 HOW TO REGULATE THE HOT WATER TEMPERATURE
Usually your installer will have adjusted the hot
water output to suit your requirements, however
if you would like to adjust the outlet temperature,
please follow the instructions in section 2.4.
NOTE
If you find that the hot water temperature is still
insufficient, try reducing the flow of water through
the tap.
normal operating
position
filling position
closed
position
Fig. 5
Fig. 4
Hot water outlet
Cold water inlet
stopcock/filling
valve
Gas
cock
Filling loop
C/H flow
valve
C/H return
valve
Safety
valve outlet
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Linea HE
4.5 WHAT IF 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 (UK) or 05655057
(ROI) have all your details to hand including full
address and postcode, relevant contact numbers, and your completed appliance log book.
WHAT IF...
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. I you require further advice please
contact your nearest Vokera office.
4.2 WHAT IF I HAVE FREQUENTLY TO TOP-UP
THE SYSTEM
If the system regularly requires topping-up, it may
be indicative of a leak. Please contact your installer and ask him to inspect the system.
4.3 WHAT IF THE RESET LIGHT IS ON
If the reset icon is shown, it indicates that the
boiler has failed to ignite or has overheated, when
this happens the boiler automatically shuts down
and requires to be reset manually (see 3.2).
4.4 WHAT IF THE APPLIANCE IS DUE ITS ANNUAL SERVICE
Advice for tenants only
Your landlord should arrange for servicing.
Advice for homeowners
Please contact Vokera Customer Service (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 service the appliance for you.
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Linea HE
NOTE
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Linea HE
Registered address:
Vokèra Ltd
Borderlake House
Unit 7 Riverside Industrial Estate
London Colney
Herts AL2 1HG
enquiries@vokera.co.uk
www.vokera.co.uk
www.vokera.ie
Sales, General Enquires
T 0844 391 099
F 0844 391 0998
Vokèra Ireland
West Court, Callan
Co Kilkenny
T 056 7755057
F 056 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
Cod. 10026492 - 10/05 - Ed. 2
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