barbas UNICA 50 User manual

INSTRUCTIONS FOR USE INSTALLATION INSTRUCTIONS
COUNTRY NATURAL GAS PROPANE
GREAT-BRITAIN / IRELAND UNICA 50 NG UNICA 50 PG
UNICA 52 NG UNICA 52 PG
UNICA 65 NG UNICA 65 PG
UNICA 70 NG UNICA 70 PG
UNICA 100 NG UNICA 100 PG
UNICA 50
UNICA 52
UNICA 65
UNICA 70
UNICA 100

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CONTENTS
1. INSTRUCTIONS FOR USE......................................................
2. INSTALLATION INSTRUCTIONS...............................................
3. MAINTENANCE......................................................................
4. FAULTS.................................................................................
5. ELECTRICAL DIAGRAM.........................................................
6. DIMENSIONS.........................................................................
7. TECHNICAL DETAILS/REGULATIONS......................................
8. REPLACEMENT PARTS LIST..................................................
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1 INSTRUCTIONS FOR USE
1.1 INTRODUCTION
Congratulations on your purchase of this modern BARBAS gas fire. This quality
product will provide you with many years of enjoyment due to the flame effect
and warmth that it provides. Please read the instructions for use carefully before
using the appliance for the first time. Keep this booklet in a safe place.
1.2 BUILT-IN PROTECTION OF THE APPLIANCE
The appliance is fully protected by means of a thermo-electric pilot light shut off
in the event of a gas escape from the main burner. Additionally, the gas fire is
fitted with a thermal one-way protection safety system. This system shuts off the
appliance if the flue gas is not exhausted.
1.2.1 Safety
Do not place any embers, vermiculite granules or logs against
the pilot light burner. Make sure that the pilot flame can burn at
all times freely over the main burner. Only in this way is proper
ignition of the main burner ensured.
Ignoring these directions could lead to a dangerous situation.
It is essential that the appliance, the chimney and the burner
air intake are cleaned and inspected annually by a
recognised fitter/gas specialist. The safe operation of the
appliance will thus remain guaranteed.
See for additional instructions Chapter 3: Maintenance.
If the pilot flame goes out for any reason, wait for 5 minutes
before attempting to re-light it.
The gas fire must never be used with the door open or the
door glass removed.
Never place flammable material on the ceramic log set.

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The filling of the main burner with embers, vermiculite granules
and wood logs may not under any circumstances be changed
or added to.
Do not place easily-flammable materials, such as nylon clothing
or flammable liquids, in the vicinity of the gas fire.
Ensure at all times that children and other people who are not
aware of the operation of the gas appliance are only in the
vicinity of the appliance exclusively under supervision.
Use a fireguard to protect children and other persons
mentioned above against possible burns.
1.3 OPERATION : HAND CONTROL
The gas regulating block, with which the fire is operated, is located behind the
operating hatch. The fire has one main burner which can be operated by the
thermostatic knob and/or the sliding knob.
The thermostatic knob is used to choose the correct setting and the modulating
thermostat ensures that the set temperature (13 - 38°C) is maintained.
The slider, is used to select the desired position, the burner will now
continueously burn as an atmospheric burner until the setting is changed.
Both operating knobs can be used in combination.
The Unica 65, Unica 70 and Unica 100 are fitted with a double convection fan as
standard. For the Unica 50 and Unica 52 is this an option (factory-done). The
fan speed can be regulated with the knob located on the right-hand side of the
gas regulating block. The knob on the Unica 52 and 65 can be found by opening
the operating hatch on the right hand side.
When the appliance reaches a temperature of 40°C, the convection fan will
automatically be activated. After the appliance has been switched off, the fan
will continue until the temperature has fallen below 35°C.

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Figure 1: Hand control
1.4 IGNITING THE FIRE
lOpen the gas supply valve in the gas pipe to the appliance.
lLock the slider into “l” position.
lTurn the thermostat knob to the ignition position “«” and then push the
knob in.
lWhile keeping the thermostat knob pushed in, press the ingition button a few
times to ignite the pilot light. Check through the glass that the pilot light has
been lit.
lWhen the pilot light is lit, keep the thermostat knob pushed in for a further 10
seconds, after which it can be released.
Important: If the pilot flame goes out, then wait for at
least 5 minutes before repeating the above
procedure.
lBy turning the thermostat knob to the required setting and/or pushing the slider
into a downward position: the burner will now ignite.
“OFF” POSITION
SLIDER SLIDER “OFF” POSITION
THERMOSTAT KNOB “IGNITION” “IGNITION” KNOB
POSITION

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1.5 TURNING OFF THE FIRE
lTurn the thermostat knob to the ignition position “«”.
lLock the slider to the “l” position.
The burner will now be fully extinguished.
If the thermostat knob is turned back to the “1” position, then the burner will
continue to operate for as long as the room temperature remains below 13°C.
1.6 EXTINGUISHING THE PILOT LIGHT
lExtinguish the pilot by setting the thermostat knob to the “l” position.
lIf the gas fire is not going to be used for a long period of time, it is
recommended to close the gas supply valve to the fire.
Important: If the pilot flame goes out for any reason,
wait for 5 minutes before attempting to
re-light it.
lIf the pilot light frequently goes out, then please contact your installer.
1.7 OPERATION: REMOTE CONTROL
1.7.1 In general
The pilot light and burner are switched to “ON “ or “OFF” by means of the control
knob A. The flame height of the burner is regulated by control knob B.
The desired position is selected and the burner will burn continuously in this
position, until this is changed.
The control knob Bcan be used in different ways:
1. Manually, by turning the knob by hand in the desired position.
2. By means of the cordless remote control, where the desired position of the
knob and also the flame height are regulated by ultra-sonic signals.

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B A
Figure 2: Operating switch
1.7.2 Igniting the fire
lOpen the gas valve in the gas supply pipe to the appliance
lTurn the control knob Bto the position where the “big flame”-symbol is located.
lTurn the control knob Aa little to the left until the stop.
lPress knob Aand keep the button pressed approximately 5 seconds
(the gas flows to the pilot light).
lContinue turning the pressed knob Afurther to the left to the ignition position
(from the «symbol to the “small flame” symbol). A “click” is heard indicating
the ignition spark for the pilot light.
If necessary, click a few times until the pilot light burns.
lAs soon as the pilot light burns, keep knob Apressed for another 10 seconds,
then release.
Important: If the pilot light goes out, then wait for at least
5 minutes before repeating the above mentioned
procedure.
lContinue turning knob Afully to the left until the “ON” position, (the “big
flame” symbol) and the main burner is ignited.
Beware: it takes a few seconds for the burner to ignite!

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1.7.3 Flame height
The flame height of the main burner can now be adjusted by means of control
knob B. Manually in approximately 20 steps or by means of the cordless
remote control (continuous). Turning knob Bto the left in the direction of the “big
flame” symbol increases the flame height, to the right in the direction of the
lsymbol decreases the gas supply from the minimum position to the “OFF”
position.
1.7.4 Remote control
The remote control operates according to the “ultrasonic” principle and consists
of
a hand-held transmitter and a reciever. For a correct operation, aim the front of
the hand-held transmitter towards the eye of the reciever in the appliance. The
appliance must already be switched on with the control knob A.
It is recommended to adjust always the flame height to the minimum or “OFF”
position, before entirely switching off the appliance with the control knob A.
Battery compartment
LED indication
Figure 3: Reciever

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Changing batteries signal
Temperature display
°C - °F
Heating period
P1 and P2
Time display
Button
High MAN
Setting TIMER
Setting TIME
Button
Low MAN
Setting TIMER
Setting TIME
SENDsymbol
AUTO
TIMER
MAN
display
Button AUTO
Button TIMER
Figure 4: Hand-held transmitter
Figure 5: 4 x Connectors to gascontrols
Room temperature /
Set roomtemperature

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1.7.5 Extinguishing the fire
Turn knob B, possibly with the remote control, fully to the right to the
lsymbol and/or turn the control knob Ato the right until the stop (“small flame”
symbol = pilot light position).
The main burner will still burn for a few seconds, after which it will be
extinguished completely.
1.7.6 Set the display
lAfter connecting the batteries or when simultaneously pressing AUTO and
TIMER, the display will flash. You are now in “SET” mode.
lPress AUTO to switch from °F (and standard time) to °C (and military time) or
vice versa.
lThe display will automatically return to manual mode after some time, but you
may immediately return to MAN by pressing the TIMER button.
1.7.7 Set the current time
lAfter connecting the batteries or when simultaneously pressing AUTO and
TIMER, the display flashes. You are in SET mode.
lPress to set the hour and to set the minute.
lWait or press TIMER to return to MAN mode.
1.7.8 Programming the desired temperature
lPress AUTO until display flashes.
lPress or to set the temperature.
lWait or press AUTO to switch to automatic mode.
1.7.9 Programming the timer
lPress TIMER until P1 flashes (heating period 1, heat ON)
lSet the time for the beginning of the first heating period by pressing
for hour and for minute’setting.
lPress TIMER again; P1 appears on the display. Set the time for the end of
the first heating period.
lPress TIMER again to set the second heating period P2 (heat ON) and
P2 (heat OFF).
lStore both heating periods by pressing TIMER again.
lIf only one heating period is desired, program the same time for P2 and P1.

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1.7.10 MAN mode for manual flame height adjustment
lPress to turn on the fire (main burner) or to increase flame height.
lPress to decrease flame height or to turn down the main burner. The pilot
stays on.
lTo incrementally increase or decrease the flame height lightly tap either the
or button.
lThe SEND symbol appears in the upper left corner of the display when either
button or is depressed.
lThe LED of the receiver flashes if you reach the end stops of the valve.
1.7.11 Automatic mode for temperature control
l Briefly press AUTO. The set temperature will appear briefly before the display
reverts to the room temperature.
1.7.12 TIMER mode (TIMER in display)
lDuring heating periods P1 and P2, the temperature is controlled in the same
manner as in AUTO mode.
lWhen the timer program turns to (heating cycle off), the motor will turn the
valve to pilot and there is no temperature control. This minimizes battery
consumption.
lYou may press AUTO to verify the set-temperature and then press TIMER to
return to timer mode.
lPress either the or button from any mode for manual override.
lFor the AUTO or TIMER mode to function correctly, the transmitter must
remain with range of the receiver.
1.7.13 Changing the battery
lIf BATT appears in upper right corner of the display or if the LED of the
receiver becomes faint, please change the battery from transmitter or receiver.
See also 1.7.15
lIf the batteries lose power, the flame height can be adjusted by manually
turning knob B.
1.7.14 Extinguishing the pilot light
lThe pilot light extinguishes by slightly pressing the spring loaded control knob
Aand by turning it to the right to the “OFF” position (l-symbol).
lIf the gas fire is not going to be used for a long period of time, it is
recommended to close the gas supply valve to the fire.

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Important: If the pilot light goes out for any reason,
wait for 5 minutes before attempting to
re-light it.
1.7.15 Replacing the batteries
The batteries of the hand-held transmitter and reciever have a lifespan of
approximately one year.
If BATT appears in upper right corner of the display, please change the battery
from the hand-held transmitter.
If the LED of the reciever becomes faint, please change the battery from the
reciever.
Hand-held transmitter:
lOpen the cover at the back of the hand-held transmitter.
lCarefully remove the 9V block battery and release it from the contact maker.
Do not pull the wires!
lConnect the new battery and refit. Close the cover.
Receiver:
lRemove the battery support from the housing and release it from the contact
holder.
lRemove the batteries from the battery support.
lPlace the 4 new batteries of 1,5V (type LR6 or AA) in the battery support as
indicated. The pressure spring always against the negative pole (-) of the
battery. Connect the battery support with the contact maker. Replace the
support and close the cover. Incorrect placement of the batteries or the
battery support can lead to irreparable damage to the electronics or the
electric propulsion.
NOTE:
Please note, the placement of the transmitter (temperature sensor) is
important to assure proper temperature regulation. Generally, a more constant
temperature will be assured, if the transmitter is not too far from the gas
appliance. Before switching to AUTO or TIMER mode, press either knob or
to verify the reception (when the SEND symbol appears in the transmitter
display, the receiver’s LED must illuminate).

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1.8 USING THE APPLIANCE FOR THE FIRST TIME
The gas fire is coated with a lacquer layer resistant to high temperature.
During the first hours of operation, the burning in of the lacquer may result in
an unpleasant smell. This is harmless, however. Operating the gas fire at full
capacity for a few hours, while ventilating the room, will eliminate the smell.
Moreover, deposits may form on the inside off the glass; these can be removed
with a dry cloth when the gas fire has cooled down.
1.9 DAILY MAINTENANCE
lRegulary check that the air supply is still open.
lEnsure that as little dust, and as few particles of cigarette smoke, candles and
oil lamps as possible pollute the air in the room in which the appliance is used.
Heating of these particles by the convection system of the appliance could
lead to discoloration of the walls and ceiling. It is therefore very important to
ensure that the room in which the appliance is located is sufficiently ventilated.
Regularly remove any dust deposits from behind the control flap by means of
a vacuum cleaner.
Important: If the glass is broken or cracked, it must be
immediately replaced before operating the
gas fire again.
lIf anything is spilt on the fire, switch it off immediately and wait for it to cool
down sufficiently before cleaning. Never use scouring powder, aggressive
cleaners or fire polish on the gas fire. Use only a dry lint free cloth.
lBarbas heat resistant lacquer in aerosols can be obtained from your
distributor. During the yearly maintenance, the lacquer can be used to repair
small areas of damage.
IMPORTANT
The installation must only be carried out by a
CORGI registered installation engineer.

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2 INSTALLATION INSTRUCTIONS
2.1 GENERAL
The gas fire must be positioned and connected as a “open” appliance by
a CORGI registered installation engineer in accordance with the following
installation instructions, nationally and locally applicable regulations (see
“Technical Details/ Regulations” at the rear of this manual).
If you have any queries regarding the installation, please consult your local gas
company.
If an existing chimney is to be used, please consult your installer first. If the
chimney was previously used for a wood or coal fire, then it should be cleaned
by an expert. A chimney draw of approximately 5 Pa (=0,05 mbar) is sufficient for
full load of the appliance. If the chimney draw is more than 20 Pa (=0,2 mbar),
then it is recommended to reduce it.
Before beginning the installation, check that the details on the rating plate
correspond to the gas type and pressure to which the appliance will be
connected.
2.2 FLUE PROTECTION
The appliance is supplied with a security system T.T.B. It is a thermostat
which shuts off the pilot light and main burner under any of the following
circumstances:
l insufficient chimney draw.
lunder-pressure in the house due to a mechanical exhaust system.
lbad connection between the appliance and the flue.
lpartial or total blockage of the flue, for instance, due to falling debris.
linsufficient external air supply in an entirely closed house.
lflue down draught due to wind.
After the problem has been rectified, the appliance can be put back into
operation. It is not permitted to bypass the security system. Always call your
installer in case of any problem.
Replace the security system only with parts identical to those originally supplied!

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2.3 PREPARATIONS BEFORE INSTALLATION
Before installing the appliance, first observe the following instructions.
2.3.1 The most important facilities according to the regulations:
1 NATURALLY VENTILATED HOUSE (see Figure 6).
lThe room in which the appliance is to be fitted must have a non-
closable combustion air supply opening. The minimum dimensions
are detailed in “Technical Details/Regulations” at the rear of this
manual (see also Paragraph 2.4, point 4).
lThe flue gas exhaust must exit at “outlet area I”.
Figure 6: Naturally ventilated house
GAS
OUTLET AREA I
AIR SUPPLY
OPENING

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2 MECHANICALLY VENTILATED HOUSE (see Figure 7)
lThe room in which the appliance is to be fitted must have a non-
closable combustion air supply opening. The minimum dimensions
are detailed in “Technical Details/Regulations” at the rear of this
manual (see also Paragraph 2.4, point 4).
lThe flue gases must be extracted by means of a flue extraction fan.
Figure 7: Mechanically ventilated house
GAS
AIR SUPPLY
OPENING
FLUE EXTRACTION
FAN

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2.4 GENERAL SERVICES
1. UNPACKING THE APPLIANCE
The appliance is fitted with two “carrying handles” at the top. If required,
they may be removed during installation.
2. FRAME
The appliance is fitted with a 20 mm wide frame as standard. A detachable
50 mm (Unica 50: 32 mm) wide frame is placed on top.
3. FLUE
Before installation, it must be verified that the flue has sufficient draw.
Remove all flue gas dampers (if present) in the flue or fix them in the open
position. The flue must be at least 2 metres long. In order to prevent
condensation in a masonry flue and, if necessary, to improve correct
operation of the appliance, it is recommended that the flue be fitted with an,
(isolated) aluminium or (flexible) stainless steel pipe of Ø100 mm (minimum).
An protective cap must be placed on top of the chimney to prevent rain
entering.
4. COMBUSTION AIR SUPPLY
The combustion air supply has to comply with national and local
regulations. The minimum dimensions are detailed in “Technical Details/
Regulations” at the rear of this manual. The air supply opening must be
non-closable.
5. THERMOSTAT SENSOR
The appliance is equipped with a thermostat sensor which is normally fitted
to the bottom plate. The thermostat function can be improved by positioning
the sensor in the bottom left- or right hand side, or at the height of the plinth
underneath the appliance. Ensure that the sensor remains easily accessible
at all times for service and maintenance.
6. GAS CONNECTION
The Ø12 mm or Ø15 mm gas connection is located on the left side of the
appliance. Connect the gas supply to the appliance using the push
coupling. Use only gas piping with a minimum diameter of 1/2” G with a
shut-off valve.
7. ELECTRICAL CONNECTION
If the appliance is equipped with a convection fan, there must be a wall
socket with earth connection, preferably at the right-hand side of the
appliance. The socket should be accessible at all times.

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2.5 POSITIONING THE APPLIANCE
Important: lNever use combustible materials during the
installation.
lInsulate the gas fire using white loose insulation
wool (heat resistant up to 1000°C).
Not at the bottom !!
lFlammable materials, such as curtains, should
not be placed in the vicinity of the gas fire.
Minimum safe distance: 100 cm.
lDuring installation of the gas fire, a clearance of
3 mm should be maintained on all sides of the
appliance to allow for expansion of the appliance
during operation.
lThe opening underneath the operation hatch
(2 cm) must remain completely free.
lPosition the appliance at least 12 cm above
the floor height.
Read one of the following instructions for fitting the appliance, as applicable:
Paragraph 2.5.1 Fitting into a new chimney
Paragraph 2.5.2 Fitting into an existing opening larger than the fire insert
Paragraph 2.5.3 Fitting into an existing opening equal or smaller than the
fire insert.
2.5.1 Fitting into a new chimney
The fireplace must be mounted on a concrete floor. If there is no concrete floor,
it is essential to re-enforce the floorboards underneath with concrete. Build in
the fire insert up to the top of the fireplace opening. Push the appliance into the
opening and make the chimney connection using an (insulated) aluminium or
(flexible) stainless steel pipe of Ø100 mm.
Connect the gas supply using the separately provided gas inlet connector.
Ensure that the gas regulating block is straight during the connection. Ensure
that the gas regulating block and pipework are not put under stress.
Make the electrical connection to the fan.
(Only applicable if the appliance is provided with an convection fan.)