FRANCO BELGE COLIBRI Seriez User guide

COLIBRI
Ref. 971.14.11.Z - Output 14kW
Ref. 971.21.11.Z - Output 21kW
Central heating hot water oiler
Natural draft vaporising pot urner.
CONTENTS
These instructions have een laid out as follows.
1-0 HEALTH AND SAFETY
2-0 APPLICABLE REGULATIONS
3-0 INTRODUCTION
3-0-1 MATERIALS REQUIRED
4-0 GENERAL INFORMATION
5-0 INSTALLATION AT A GLANCE
9-0 LIGHTING & COMMISSIONING
10-0 FAULT FINDING
User and Installer
Instructions

Reference 971.14.11Z 971.21.10Z
Total Output (Max/Min) (kW) 4.5 to 14.1 6,5 to 21
Output to water (kW) 4 to 12.6 5.8 to 19
Output to space (cover closed) (kW) 0.4 to 1.5 0.7 to 2
Oil flow rates:
Minimum (litres per hour) 0.45 0.66
Maximum (litres per hour) 1.37 2.11
Required Chimney Vacuum
Minimum (inch water gauge) 0.35 0.5
Maximum (inch water gauge) 0.65 1.1
Water volume in oiler (litres) 14 14
Max. running temperature (degree C) 90 90
Max. operating pressure ( ars) 3 3
Flexi oil hose diameter (mm) 6 x 8 6 x 8
Weight (kg) 105 116
1-0 HEALTH AND SAFETY
Control of Su stances.
Take great care when handling materials
such as insulation oards, glass fi re
ropes, ceramic wool, artificial fuel and
kerosene oil, diesel oil, they are all
irritants and suita le protective clothing
such as disposa le gloves dust masks and
protective goggles should e worn.
Wash off thoroughly after handling any of
these materials.
Carefully dispose of redundant or surplus
materials and always vac up after service
or installation work.
Fig. 1 - Pressure drop across heat
exchanger.

2-0 REGULATIONS
The installation of an oil fired appliance must e carried out y a technically competent
person, experienced in oth solid fuel and oil fired installation and capa le of installing,
commissioning and servicing to the current requirements of the relevant local uilding
regulations.
In England and Wales these are J 1-2-3 Provision for introduction of air supply and discharge
of products of com ustion.
Provision for protection against fire and heat.
In Scotland Part F sec 3.
In Northern Ireland Part L.
In Ireland Part J.
British IEEE is wiring regulations, latest edition.
Codes of practice which apply in the UK are -:
B55410, installation of oil fired space heating and hot water supply Part 1, oilers of rated
output not exceeding 44KW
B54543, Specification for chimney for oil fired appliances Part 3.
B55449 central heating for domestic premises Part 1 Forced circulation hot water systems.
BS 5601, B58303 & B56461 Pts 1 & 2 1984,
B57566 Parts 1 to 4
The installer should have passed the OFTEC course OFT 101 or attended specialist training
availa le at this company.
Failure to comply with the relevant requirements listed a ove can e hazardous and could
lead to prosecution under the law.
If you have any difficulties please phone our sales department on
Telephone: [phone]. (3 lines.)
INTRODUCTION
1.The Coli ri is an oil fired, free standing central heating oiler, powered y a natural draft
vaporising pot urner.
2.It can e supplied with a uilt in presure vessel for unvented installation.
3.It has a cast iron hot plate which can e used for slow cooking.
4.It is operated y an automatic thermostaticaly controled oil valve with a uilt in safety cut
out.
5.It can e flued verticaly or horizontaly.
6.There is a lightweight hot plate cover which can only e used as it was intended on rear flue
installations.
7.On top flue installations the cover will not hinge and stay in a vertical position.
8.The appliance is manualy ignited and must not e operated without the lighting port ung
fitted.
9.Before installation of a Coli ri oiler you must make a solutely sure that the chimney does
not have a history of downdraughting either intermittent or permanent, see figs 11 and 12.
MATERIALS REQUIRED
1. 125mm dia chimney liner for Coli ri 14, 150mm dia chimney liner for Coli ri 21.
2. Suita le anti downdraft terminal.
3. Suita le appliance adapter.
4. Suita le Copex vit adapter
5. Oil isolation valve
6. KBB remote sensing firevalve.
7. Boiler unions.
8. lOmm kutalex copper tu e.
9. 22mm waste pipe (for wall sleeving.

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
10. Silicone sealant.
11. Stadium air vent
12. Vermiculite loose fill
13. Cement.
14. Sharp sand.
15. Plugs and screws.
16. Switch fused neon isolator. (for time clock if fitted)
17 Suita le compression fittings.
4-0 GENERAL INFORMATION.
4-1 Chimney
To ensure satisfactory performance from the COLIBRI 14/21 hot and cold condition
chimneys must e capa le of maintaining a constant steady vacuum as stated in the technical
specs.
Particular attention is required with the Coli ri 21 as the requirement for high fire vacuum is
in excess of 0.1” W.G.
It is most important that any existing chimney faults such as :-
1. Occasional or permanent down draughts
2. Excessive up draughts
3. Fume leaks
4. Regular lockages are esta lished and corrected efore any installation work is
carried out.
If you are unsure a out the condition of the chimney, have it thoroughly cleaned and checked
y a suita ly qualified person.
Always reline and ackfill around the chimney lining with vermiculite to keep it warm,
prevent condensation and improve the chimney vacuum.
The chimney should terminate 2 feet a ove the ridge of the main or highest roof, in
compliance with relevant legislation.
For a guide to terminal positions (see FIGS 5 and6)
Provision must e made to allow adequate and easy access into the chimney for cleaning
purpose.
The flue pipe from the appliance must not e less than 125mm diameter and must comply to
one of the following -:
Acid resistant vitreous enamelled flue pipe to BS 1344 Part 2.
Stainless steel to B51449 Part 2.
Cast iron to BS41.
Mild steel with a wall thickness of 3 mm minimum.
CHIMNEY TERMINATION
The chimney must e terminated with a suita le anti downdraft cowl such as a VEDETTE or
EUROCOWL ETC.
WARNING.
A normal chimney terminal locations are very likely to cause pro lems under certain windy
weather conditions.
For details see Figs 11 and 12.
Bends in flues and chimneys
Flues and chimneys should always e vertical wherever possi le.
On installations where using a end is unavoida le the maximum allowa le end angle from
the vertical is 45 degrees.
45 degree runs should e kept as short as possi le (less than 1 metre long) and there should
never e more than two ends used.
WARNING
Horizontal flue runs are not allowed.

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
4-3 OIL FEED AND STORAGE REQUIREMENTS
NOTE
28 Second Commercial Kerosene to B52869 Part 2: 1988 Class C2 is suita le for use with
this appliance.
35 second versions are availa le.
Installation of all oil feed pipework and storage equipment should e in line with -:
B55410 Part 1
Steel oil storage tanks to B5799 Part 5, if there is any dou t consult the tank manufacturer.
OFTEC requirements ook T3 July 1995 rev.7.95
Minimum size storage tank should e 300 gals.
The urner can e supplied with oil via a gravity or pumped oil feed system. See FIG
If a gravity system is used the ase of the tank must not e less than half a metre
a ove
the urner.
Where the tank will e fitted at a lower level than the appliance a lift pump must e used with
max. head a ove the urner ase of 3 metres, the max head of the lift pump over the oil
supply tank must not exceed 5 metres.
A suita le filter must e fitted and the minimum fuel line diameter is 8 mm ut this is
dependent upon the length of run.
If other appliances are eing supplied from the same oil supply allowance must e made when
pipe sizing to ensure that an adequate supply of oil e maintained for each appliance.
The oil line must e sleeved and sealed in a plastic tu e where it passes through any
rickwork. see FIGS 7 and 8
A remote acting fire valve such as a Teddington KBB C 150 deg F must e fitted with the
phial ul eing mounted under the front fender and the valve eing fitted at the point where
the fuel line enters the property. see FIGS 7 and 8.
There must also e an isolation valve fitted in the same room as the appliance in a
conveniently accessi le place. see FIGS 7 and 8.
Environment protection is of paramount importance. Where properties are prone to e at risk
from flooding take great care when fitting oil storage tanks.
Make sure that they are supported on reinforced concrete walls which are uilt high enough to
keep the tank well a ove any potential flood level and strong enough to withstand swollen
river current or flood tide conditions.
Make sure that the tank is firmly fixed to the supporting walls so as not to e washed away.
Tall, slim line plastic oil tanks must e secured to a su stantial ase to prevent them from
eing lown over when the are empty or have a low oil content.
4-4 VENTILATION REQUIREMENTS
Air Supply To The Burner.
See Building Regulations J11213 section 4. and B55410 part 1.
Calculate air requirements at 5.5 cm sq. per kW of output.
It is most essential that a permanent free air supply is esta lished as the urner cannot
function correctly without it.
Provision for an adequate FREE air supply in to the room or house where the appliance is
fitted is required and can e esta lished y multiplying the kW oil input of the appliance y
5.5cm sq.
The air supply will take the form of a purpose designed, NON hit or miss, air vent of correct
cross sectional area.
If an extractor fan is fitted in the same room as the appliance or if there is an open fire in an
adjoining room then extra compensatory air must also e made availa le for oth these extra
requirements.
Minimum extra requirement for extractor fans is 55 sq. cm and it is preferred if the extra air
supply can e positioned in such a way as it can supply air to the extractor fan without the air
stream passing the appliance.
Minimum ventilation requirement for open fires is 212 sq. cm

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Test for adequacy of air supply is to-:
Set the oil fired appliance going, close all doors and windows in the room, turn on the
extractor fan to its maximum capacity, light the open fire and let it get well esta lished.
Test for adequate maintenance of chimney vacuum on the appliance, oth efore and after the
extractor fan is turned on, with the open fire going.
During the tests the flue vacuum of the oil fired appliance should e measured to see if there
is any noticea le reduction eyond that called for in these instructions.
WARNING
Instructions on ventilation must e adhered to.
4-4a WATER HEATING
Coli ri Boilers are all high water content oilers and as such can easily replace solid fuel
installations with the minimum of complication.
Before you start to install a water heating Coli ri Boiler remem er that the central heating
system must comply with BS:5449 part 1.
If a com ined heating and domestic hot water system is to e used, then a dou le feed indirect
hot water storage cylinder to BS:1556 part 1 should e used.
In order to prevent the uild up of scale and corrosion a suita le inhi itor should e used.
The system must e correctly vented.
The height differential etween the header tank and the appliance must not exceed 15.2
metres (50 feet) Where a common return is used an injector tee must e incorporated into the
system to ensure adequate primary circulation when the circulating pump is operating. (see
detail in FIG16)
The system must incorporate a gravity circuit which will normally heat the domestic hot water
and an un-valved radiator or radiators with an output of at least equal to the minimum water
heating output of the appliance. (see technical spec for details)
When the appliance is not connected to a domestic hot water system a gravity system must
still e used with the unvalved radiator(s) on the gravity circuit having a total output of at
least the minimum output of the appliance, this is to prevent oiling in case of pump failure.
Min. pipework in the primary circuit must e 28mm diameter and the gravity flow pipe must
rise continuously from the oiler to the open vent.
Typical systems are shown in illustrations FIGS 15,16,18,19 and 20
Connect the heating system to the oiler ensuring that the primary flow pipe rises
continuously from the appliance to the vent.
Fill the system with water and check for leaks and air locks.
APPLIANCE CONTROLS
The appliance can e controlled via -:
The oil control valve which is fitted with-:
1. A manually operated oil flow control kno
2. A manually set, automatic thermostat, uilt into the oil control valve.
3. A manually and automatically operated oil cut off lever, uilt into the oil control valve.
4. An automatically operated safety shut off thermostat, uilt into the oil control valve which
trips the oil flow cut off lever mentioned in 3 a ove.
The valve operates as follows, it has flow control potential from mini to maxi via six
graduations and so the appliance can e manually controlled from MINI to MAXI y simply
turning the flow control kno (1 a ove), in addition it also has a water sensing thermostat and
an automatic safety oil cut off device should the appliance water temperature exceed 90
degree C.
The water sensing thermostat will automatically control the oiler water temperature at what
ever setting is required up to a maximum of 70 degree C. (2. a ove) and it is operated y a
control kno situated alongside the oil flow control kno .

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
If the appliance is fired up at full output it will run on full flame until it achieves the target
water temperature, set y rotating the stat kno to the desired position, (clockwise to reduce
temperature, anti clockwise to increase temperature)
The flame then drops to its low fire position, from there on it will automatically modulate the
flame from high to low in line with the heating load demand.
ADJUSTMENT OF THE OPERATING STAT
Set point of the operating stat can e adjusted as follows.
The thermostat drive kno has a plastic push on cover which slips over it and grips it acting as
an adjusta le driver.
The plastic driver has a dead stop which acts against a small rass screw so restricting the
rotational movement to one full turn, thus allowing adjustment of water temperature from
mini to maxi through one full turn.
If the water temperature settings are not as required remove the plastic push on cover and
rotate the aluminium kno anticlockwise until the weight comes off, allow the appliance to
come up to the required temperature (say 65 deg c) and then rotate the aluminium kno until
the fire starts to reduce, refit the plastic push on cover with the scale set as required.
ADJUSTMENT OF THE SAFETY STAT
The safety stat can also e adjusted if it does not trip off at the desired temperature of 90 deg
C.
To adjust the set point on the safety stat the aluminium top cover of the oil valve has to e
removed. It is held in place y the three slotted screws and the ase casting of the thermostat
stand.
Undo the three slotted screws and slacken the other two, lift the cover up and work it out from
under the aluminium thermostat casting.
When the cover is removed it will reveal the operating ellows of the safety stat, on the left
hand end of the ellows is a straight knurled nut which if screwed in will decrease the
temperature set point and if screwed out will increase the temperature set point.
(The Oil Controls International oil control valve has a second safety float cham er designed
as a safety ack up to the first one.
It is possi le during installation to accidentally flood the second cham er, if this occurs it will
not e possi le to trip the safety cut off kno as the flooded safety float disarms the trip
mechanism. To re esta lish the action of the safety cut off kno the second float has to e
depressed a few times to remove some of the excess oil. This can e done using a small screw
driver, access to the float is o tained y removing the lOmm dia plastic cap pressed into the
top of the O.C.V.)
SYSTEM CONTROLS
The circulating pump may e controlled y means of time switches, or room thermostats.
Radiators may e either manually or thermostatically controlled except for the heat leak
radiators.
These controls will all work in conjunction with the thermostat on the appliance and the low
limit pipe thermostat.
We recommend fitting a pipe thermostat onto the gravity return to act as low limit thermostat.
This should e wired into the mains supply to the pump so that if the gravity return
temperature drops elow 45 deg C, the pump will cut out.
This will help to prevent condensation forming on the oiler faces and will there y increase
the life of the oiler. It will also ensure that priority is given to the domestic hot water. These
thermostats are availa le from ourselves if you are una le to o tain them locally.
THE APPLIANCE
The appliance has the oil valve situated ehind the front door.
5-0 INSTALLATION AT A GLANCE

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
l. PREPARE THE HEARTH
Prepare the opening and or hearth .
4. DROP THE LINER DOWN THE CHIMNEY.
6A. FIT SUITABLE VENTILATION INTO THE APPLIANCE SITE SEE SEC 4-4.
7. RUN THE OIL SUPPLY. SEE SEC 4-3.
Run the oil line and, remem er that the KBB fire valve may well need in service replacement,
an allowance must e made for this to e easily carried out, should the need arise.
Install fuel tank in line with our instructions in sec 4-3 and run a fuel line up to the rear right
hand side of the appliance, fit the remote firevalve phial, if it is located in a position where the
temperature can exceed 150 deg F, it will trip and need to e reset on the firevalve ody.
Fit the isolation valve see figs 7 and 8.
7a RUN THE ELECTRICAL SUPPLIES (optional)
8. FIT THE APPLIANCE.
Before attempting to fit the appliance make sure that it has not suffered any damage in transit
particularly
around the oil control valve area.
Check that the lighting port plug is in situ.
Remove all the urner components, as follows -:
CATALYSER AND RING
Check that the swinging arometric damper is swinging freely and closing properly.
Level the appliance in oth directions using the adjuster feet, take great care to make sure that
the oil runs very slightly towards the lighting port, when it first enters the pot.
11. CONNECT THE PLUMBING
12 CONNECT THE CHIMNEY.
13. CONNECT THE ELECTRICAL SUPPLY. (optional)
14. CONNECT THE OIL SUPPLY.
The appliance leaves the factory with the oil control valve correctly adjusted on the O.C.V.
racket clamping olts.
Using a small spirit level check the Oil Control Valve which must e made level in oth
directions ut do not distur the level of the valve as this can cause a pro lem on oil flow.
14. FILL THE HEATING SYSTEM WITH WATER AND CHECK FOR LEAKS.
22. FIT ANTI DOWN DRAUGHT COWL AND FINISH FLAUNCH CHIMNEY TOP.
(SHARP SAND / CEMENT.) fig. 2
23. MAKE UP THE OIL SUPPLY AND PURGE THE LINE.
24. REFIT ALL THE INTERNALS AND EXTERNALS OF THE APPLIANCE.
25. TEST FIRE AND COMMISSION.
9-0 COMMISSIONING
Turn on the oil at the isolation valve.
Press the oil safety cut off kno down to trip the oil on via an audi le click. Make sure that
the stat is calling.
CHECK FOR OIL LEAKS.
Check that oil does not leak from the pot, valve, descaling device or pipework. If no leaks
proceed as follows -:
Turn the oil flow off.
Empty the pot of all oil.
Remove the lighting port cover.
Turn the oil on to the first position via the flow control kno and when oil can e seen to
trickle into the pot turn it off so as not to allow an excessive uild up, all that is required is a
pool the size of a small iscuit.
Dip the lighting wick in the pool of oil and light it, when it is alight place it into the urner
and allow 20 – 30 seconds for the oil to cach fire, remove the lighting wick and replace the
lighting port cover, turn the fuel flow on again at the lowest setting,

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
NOTE
If during the lighting stage, excess oil is allowed to uild up in the pot, the urner will race
and generate quite loud audi le vi rations, if this occurs don't panic, lift the oil cut off kno
and wait a few minutes until the urner flame starts to reduce in size, at this stage depress the
lever to restart the flow of oil so allowing the urner to run correctly at its low speed.
When the urner has een running for five minutes on position 1 LOW FIRE the
lower catalizer will e glowing dull red, with very little lue flame, if this is not the
case adjust the low fire screw accordingly, when you are happy with the low fire turn
the urner slowly and progressively up to full flow, which after 5 minutes, should
produce a larger yellow flame. If there is excessive yellow reduce the high fire
accordingly.
When you are happy with the flame picture on high and low fire you must then check the
action of the APPLIANCE TEMPERATURE CONTROL mechanisms
Check the appliance controls are working correctly See section on-:
ADJUSTMENT OF THE OPERATING STAT. ADJUSTMENT OF THE SAFETY STAT.
make sure that the valve does not shut down when the appliance is working under the control
of the oiler stat on gravity flow without the pump running.)
NEVER TRY TO RELIGHT A HOT BURNER, MAKE SURE THAT THE BURNER IS
COMPLETELY COOLED DOWN BEFORE RE LIGHTING.
EXTINGUISHING
Shutting the urner off is a very simple manoeuvre.
Turn the oil flow control kno fully in a clockwise direction until you feel it stop in its off
position.
After a few minutes, the flame will die down and eventually extinguish itself.
INSTRUCT THE USER
1. LIGHTING PROCEDURE
2. POSITION OF ALL OIL CUT OFF SAFETY DEVICES
3. ON THE PRINCIPLES OF CONTROL.
4. THE IMPORTANCE OF REGULAR MAINTENANCE.
FILL IN THE WABRANTY FORM
The warranty covers PARTS ONLY for a period of ONE YEAR and is conditional upon all
the requirements of our installation instructions eing fully adhered to.
La our, travelling or consequential loss or damages are not covered.
ARRANGE AN APPOINTMENT FOR SERVICING
6 monthly.
NOTE-;
Once the installation is completed it should e inspected to make sure that the work is of a
satisfactory standard.
Commissioning should not e signed off unless the commissioning engineer is satisfied that
all the work done complies with the relative standards and regulations detailed within this
document.
Checks should e carried out on the following-:
Tank- check for leaks-sta ility-height-position-vent.
Fuel- check for correct grade
Filter- is it fitted-check for function and leaks.
TANK Site Glass- check for function and leaks
Oil line- check for function, positioning, material suita ility and leaks.
Fire valve-check for function and leaks.
Through Wall Sleeving- Check that it is fitted and sealed
Isolation' valve-check for function, convenience of positioning and leaks.

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Flush at least 5 litres of oil through the line to check for contamination and to clear the oil line
of installation de ris and trapped air.
Electrical- check for correct fusing, location and specification of any isolation devices.
Ventilation - make sure that ventilation is provided in line with O.F.T.E.C requirements.
Water systems should e prechecked for leaks and satisfactory functioning and safety of all or
any control devices. Make sure that the heat leak circuit is adequate and unvalved.
Chimney system should e checked to make sure that it complies with the relative standards,
regulations and all other instructions given.
Check the appliance is fitted with adequate clearances from com usti les. Check high and
low fire as per section 9-0
Check action of arometric damper.
Check correct hot condition functioning of water heating system and all controls.
Ensure that the customer is instructed on the asic use of the appliance, timers, controls and
oil electrical isolation devices if fitted.
Ensure that the warranty registration documentation is returned to Harworth Heating Ltd.
10-0 FAULT FINDING
1. RACING
1. Audi le vi rations generated y the flame caused y too much oil in the pot.
2. Turn off the oil flow until the urner has settled down to a steady urn rate and then turn
the fuel on again ut don't let the flame go out otherwise the urner MUST e allowed to cool
down fully efore a reignition is attempted.
2. FLUE VACUUM
1. The pot type urner is extremely sensitive to flue vacuum variations.
2. Good com ustion will not e possi le unless our instructions on chimneys and flue vacuum
are followed.
3. If the urner does not urn with a lue flame, recheck the chimney vacuum and oil flow
rate.
4. If the urner does not run well check that the seals in the appliance are good and that there
is no ingress of air into the appliance flue ways.
5. Check that the swinging damper is not jammed open.
6. Check that the correct fuel oil is eing used.
7. Check the levels.
3. BURNER RUNS SOOTY.
If the pro lem has just started it may e the fuel or an unusual wind condition, check these out
efore car-lying out any adjustments to the flow rates.
1. If the appliance soot’s up this indicates that there is not adequate air for lue flame
com ustion or there is an excess of fuel.
2. Check that the chimney is correctly lined and ackfilled with vermiculite, particularly
important on exposed ga le end chimneys.
3. Check that the fuel is the correct type and quality.
4. Check that the flow rates are correct.
5. Where urners are run at high fuel flow rates on low chimney vacuums, long unsatisfactory
yellow flame com ustion and ad sooting will occur.
6. To rectify this pro lem, reduce the high fire flow rate screw on the Oil Control Valve until
lue flame com ustion occurs.
7. Never switch from low settings to high settings, a longer urner life will e achieved if the
regulator is moved only y one num er at a time leaving approx. one minute etween each
setting change.
4. BURNER DOES NOT LIGHT EASILY
1. Check the level of the ottom of the pot and make sure that the appliance is levelled so that
the oil flows very slightly towards the glow plug or ignition wick.

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
5. OIL WILL NOT ENTER THE POT
1. Check that the safety cut out lever has not een accidentally shut off.
2. If it is not possi le to reset the safety cut out lever phone us for advice. In case of failure of
the first float the second one catches the excess oil and trips the safety cut out lever, making it
impossi le to reset.
3. Simulated failure can occur if a full oil control valve is distur ed causing the secondary
float cham er to flood.
6. APPLIANCE GOES OUT WHEN THE CENTRAL HEATING PUMP IS TURNED OFF.
This pro lem can e caused y one of the following
1. The flow to the heat leak rad is inadequate.
2. The size of the heat leak rad is inadequate.
3. The safety stat set point needs increasing.
OPERATING FLOW RATES
Flow rates are shown in cc per minute.
Min. max.
Coli ri 14 0.45l/hr 1.37l/hr
Coli ri 21 0.66l/hr 2.11l/hr
To achieve optimum urner performance at these flow rates you will need to have matching flue
vacuums as stated.
If the chimney does not generate enough vacuum the flow rates will have to e adjusted so that the
urner maintains equili rium, i.e. lue flame com ustion.
This will result in lower output from the appliance.
OIL SMELLS
Visual check on all joints for o vious leaks.
Check that the descaling lever packing gland nut is adjusted.
11-0 SERVICING
 HARWORTHING HEATING LTD 30.06.98
This pu lication, nor any part of it, may not e copied y any means, without written permission from
the authors.
This product is su ject to continuous development and improvement and it is consequently
acknowledged that due to this process there may e some omissions and errors.
This pu lication is intended only to assist the reader in the use of this product and therefore Harworth
Heating Ltd shall not e lia le for any loss or damage whatsoever arising from the use of any
information, error or omission found in this guide.
Maintenance on this product must e carried out only y approved personnel, WHO HAVE BEEN
SUITABLTY TRAINED.

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Fig. 3 – Schematic of flue
gas flow
Fig. 4 – 14kW Burner Fig. 5 – 21kW Burner

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
| Fig. 6 – Diagram for Parts List

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Fig. 8 –
Fig. 9 -
Fig.10 -
C.C -
R -
S.S -
V3V -
V.E -

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Fig. 11 Fig. 12
Fig. 13
Fig. 14

COLIBRI REF. 971.14.11 Z - 971.21.11 Z
Fig. 15 - Fig. 16 -
Fig. 17 Fig. 19

COLIBRI REF. 971.14.11 Z - 971.21.11 Z