Bubble Bb1 Operating instructions

B
BU
UB BB BL LE E M
MA
AR RI IN NE E S
ST
TO OV VE ES S
S
SE
ER RV VI IC CE E I
IN
NS ST TR RU UC CT TI IO ON NS S
Keep with the appliance at all times
http://www.oilstoves.co.uk/

I
IN
ND DE EX X
Index ________________________________________________ 2
1.Warnings ____________________________________________ 4
1. Hot Burner ____________________________________________ 4
2. Post Service ___________________________________________ 4
3. Health and Safety_______________________________________ 4
4. Control of Substances ____________________________________ 4
2. Servicing Pre-Amble___________________________________ 4
Round Stoves And Triangular Stoves POT Sectional Drawing.__________ 5
BB1, Belfort And BB2 Pot Sectional Drawing______________________ 6
3. Servicing ___________________________________________ 6
1. Poor Oil Flow ___________________________________________ 6
2. Servicing Dirty Burners ___________________________________ 7
2-1 Cleaning Procedure______________________________________ 8
2-3 Remove Drain and Clean the Oil Control Valve __________________ 9
2-4 Check that oil flows freely into the pot. _____________________ 10
2-5. Check for Good Ignition ________________________________ 10
2-6 Adjust the high and low firing rate. ________________________ 10
3. Adjust Descaling Device Fig 1______________________________ 10
4. Clean the oil feed Pipe ____________________________________11
5. Check that the Oil Flows Freely into the Pot____________________11
6. Check for Good Ignition___________________________________11
7. Check the Low and high Fire Flame BB1, BB2 and BELFORT ________ 12
8. Check the Low and high Fire Flame (CORNER AND ROUND STOVE)__ 13
9. Check Action Of OPERATING AND Safety Thermostats__________ 14
10. Clean the Stove Internals________________________________ 15
11. Clean the Stove Externally _______________________________ 15
12. Check the Door Seals ___________________________________ 15
13. Clean the Door Glass ___________________________________ 15
14. Adjust the Door Fastening._______________________________ 16
15. Stoves with Barometric Dampers – Check Function______________ 16
16. Stoves with Combustion Air Restrictors – Check Function_________ 16
17. Check if the Holes in the Pot are Free from Obstructions ________ 16
18. Check the coal kit _____________________________________ 17
19. Stoves with Electric Ignition _____________________________ 17
20. Ventilation __________________________________________ 17
21. Oil Tank, Valve Filters and Line____________________________ 18
22. Flue _______________________________________________ 19
4 Fault Finding ________________________________________ 20
1. Fuel Supply Problems ____________________________________ 20

3
2. Air Supply Problems_____________________________________ 20
3. Commissioning Problems __________________________________ 21
4. Plumbing Circuit Design __________________________________ 21
5 Burner Does Not Light Easily ______________________________ 21
6 Stove Goes Out When The Central Heating Pump Is Turned Off_____ 21
7 Flue Vacuum___________________________________________ 22
8 Burner Quickly Carbons Up ________________________________ 22
9 Oil Will not Enter the Pot_________________________________ 22
10 Check for Oil Leaks_____________________________________ 23
11 Check that the Oil is in the Correct Place23
12 Flooded Oil Control Valve_________________________________ 23
13 Oil Smells____________________________________________ 23
14 Operating Flow Rates ___________________________________ 23
15 Burner Flares Up During Ignition ___________________________ 24
16 De-Flooding a Flooded Pot ________________________________ 24
17 Racing ______________________________________________ 24
Figures ______________________________________________ 25
Fig 2 Section of Bubble 1 Pot________________________________ 25
Fig 3 Section of Corner and Round Bubble Pot____________________ 25
Additional Publications___________________________________ 26
Installer info. ____________________________________________ 26
User info. _______________________________________________ 26
Parts lists _______________________________________________ 26
Price Lists _______________________________________________ 26
Other Info.______________________________________________ 26

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1
1. .W WA
AR RN NI IN NG GS S
1
1. . H HO
OT T B
BU
UR RN NE ER R
Never try to re-light a hot burner, make sure that the burner is completely cooled
down before re lighting.
Make sure that any excess oil has been removed from the base of the burner before
lighting. (SEE 4-16)
2
2. . P PO
OS ST T S
SE
ER RV VI IC CE E
Always check for oil leaks before leaving the site.
3
3. . H HE
EA AL LT TH H A AN ND D S
SA
AF FE ET TY Y
Always observe good health and safety routines (use suitable gloves and mask.)
4
4. . C CO
ON NT TR RO OL L O OF F S
SU
UB BS ST TA AN NC CE ES S
Take great care when handling materials such as:
Insulation boards, glass fibre ropes, ceramic wool, artificial coals, kerosene oil, diesel oil
they are all irritants and suitable protective clothing such as disposable gloves dust masks
and protective goggles should be 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.
2
2. . S SE
ER RV VI IC CI IN NG G P
PR
RE E-
-A AM
MB BL LE E
1. Normally, you will only be called out to a Bubble stove when it doesn’t work correctly,
generally this means that it sooted up and won’t burn with a blue flame.
2. The main cause of stoves not working correctly is lack of oil flow and this can be
attributed to by-:
2-1. The stove not being installed and commissioned correctly from new.
2-2.A progressive build up of carbon deposits caused by lack of servicing or cleaning
3. Lack of oil flow, for whatever reason, stops the burner reaching the required
temperature to make the oil vaporise.
As a consequence, the incoming diesel burns as a single streak of dirty yellow flame rising
vertically from the oil inlet.
If the stove is allowed to run for any period of time in this condition, rapid sooting of the
stove and pot internals will occur.
This situation constitutes 99% of all call outs on bubble stoves and once it has
occurred it will be necessary to carry out a thorough clean out as per section 3-2.

5
When the burner is adjusted correctly, sufficient oil will flow into it to allow vaporisation
to occur, at this point the diesel fuel will burn as a gas with the resultant clean blue
flame.
Note
We use two types of burner in our stoves, one has a single central catalyser and a flame
ring halfway down the pot and it is used on round stoves and triangular stoves.
The other has a lower and upper catalyser and a flame ring, which fits on top of the upper
catalyser, used on BB1, Belfort and BB2.
Make sure that you know which burner you are working on; the bb1 burner is capable of
generating a taller blue flame on high fire and a smaller flame on low fire.
R
RO
OU UN ND D S
ST
TO OV VE ES S A
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ND D T
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RI IA AN NG GU UL LA AR R S
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TO OV VE ES S P
PO OT T S SE
EC CT TI IO ON NA AL L D
DR
RA AW WI IN NG G.
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B
BB B1 1, , B BE
EL LF FO OR RT T A
AN
ND D B
BB B2 2 P PO
OT T S
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EC CT TI IO ON NA AL L D
DR
RA AW WI IN NG G
3
3. . S SE
ER RV VI IC CI IN NG G
1
1. . P PO
OO OR R O
OI
IL L F
FL
LO OW W
The main causes of poor oil flow are -:
1. Water contaminated diesel.
2. Boat out of trim and stove out of level.
3. Syphonic oil feed in contradiction of installation advice.
4. Air locked metering stems or oil feed pipes.

7
If any one of 1 to 4 is at fault then 5 will be the result.
5. Badly carboned-:
5-1. Descaling device.
5-2. Vaporising pot.
5-3. Oil feed pipe from valve to descaller.
2
2. . S SE
ER RV VI IC CI IN NG G D
DI
IR RT TY Y B
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UR RN NE ER RS S
This information is given on the assumption that the appliance has run correctly for some
time and then has progressively started to run sooty.
If the burner in the appliance has never been able to run in blue flame combustion,
there will be a problem, normally associated with oil flow.
If the burner in the appliance will only run for a short period of time, in blue flame
combustion, there will be a problem, normally associated with oil flow.
1. When 35-second diesel oil is vaporised in the burner, there will be a progressive build up
of carbon in the bottom of the pot and around the inlet port of the burner, to deal with
this a certain amount of service work is required.
2. Oil flows into the pot through the brass adaptor called the descaling device located at
the base of the pot. (SEE FIG1)
3. Through the centre of the descaling device is a round metal rod called a descaling lever?
4. When the decaling lever is rotated it is so designed to remove some of the carbon,
which builds up on the inside bore of the device.
5. Oil flows into the pot via gravity with very little head pressure and so the slightest
build up of carbon around the descaler will cause a resistance to the flow of oil.
6. The burner needs a minimum flow of oil to generate enough heat to keep it up to its
critical vaporizing temperature.
7. The critical vaporizing temperature is that at which the burner is hot enough to
turn the oil into gas indicated by the presence of blue flame combustion.
8. The oil flow setting on low fire is deliberately set slightly higher than is required for
two reasons -:
9. To allow the burner a margin of excess to compensate for the progressive build up of
carbon and subsequent progressive reduction of oil flow.
10. To give the flame enough energy to take the burner through the critical vaporising
temperature barrier.
11. If the oil flow into the burner is allowed to reduce to a level lower than that required
to keep the burner at or above the critical vaporising temperature, the burner can no
longer do what it was designed to do and as a consequence, oil just burns at a much lower
temperature, generally in a single streaky, dirty yellow flame up one side of the pot,
generally the flame will rise vertically from the oil inlet.

8
This will result in -:
Smoke issuing from the chimney.
Rapid soot and carbon build up on, the burner, the stove glass, the chimney and the flue
ways.
If this situation exists, the whole lot must then be thoroughly cleaned before the stove
can be adjusted or ignited again.
2
2- -1 1 C CL
LE EA AN NI IN NG G P
PR
RO OC CE ED DU UR RE E
Before starting make sure that you have dustsheets down and plenty of tissue.
1. Remove the oil feed pipe in between the oil control valve and the descaling device.
(This procedure will be different on each stove.)
2. Unscrew the descaling device from the pot and dismantle it making sure that every
scrap of carbon is removed from the descaler body and the descaling lever.
(If it is not possible to remove the descaling device, make sure that it is thoroughly
cleaned.)
Note we use two types of burner, one has a central catalyser and a flame ring and it is
used on round stoves and triangular stoves the other has a lower and upper catalyser and a
flame ring used on BB1, Belfort and BB2. (SEE FIG 2 & 3 and detail drawings)
3. Refer to the sectional illustrations of the pots and you will note that there is a space
between the inner and outer skin of the burner, on BB1 and Belfort burners this gap can
be heavily contaminated with hard carbon scale.
Check this gap and thoroughly clean it out to remove every scrap of carbon build up. (SEE
FIG 2 & 3)
Cleaning is a difficult job as the carbon can be rock hard; the best way is to gently scrape
an edge and then work around the pot off the edge.
We have a cleaning tool, which can be useful if the pot is not too heavily carboned,
otherwise a small bent scraper has to be fabricated.
BB1, BB2 and BELFORT SCRAPER TOOL

9
BB1,BB2 and BELFORT, SCRAPER TOOL IN POT.
Use a toffee hammer to tap the scrapping tool.
(Use a mirror on a stick to view the carbon in the annulus.)
4. Clean the catalysers with a brush
5. Clean the flame ring with a brush
6. Clean the stove or boiler internals with a soft brush
(If there is a thick coating of soot or scale on the stove it may be necessary to use a
scraper tool to remove it)
7. Check that the chimney is clean.
8. Check that your oil supply tank is not water contaminated by flushing oil through the
valve, into a settlement jar.
9. Clean or change all oil filters and water traps if fitted.
10. If applicable- Remove the door and door glass and thoroughly clean in warm soapy
water.
11. If applicable- check all door seals.
2
2- -3 3 R RE
EM MO OV VE E D
DR
RA AI IN N A AN ND D C
CL
LE EA AN N T TH HE E O
OI
IL L C
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ON NT TR RO OL L V
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AL LV VE E
12. Drain the oil control valve using the drain screw.
(See Toby valve booklet.)
13. Remove and clean the internal filter in the oil control valve.
(See Toby valve booklet.)
14. Brush all dust from the stove.
15. Vac up, clean all brassware and repaint the stove.

10
16. Rebuild in reverse order
2
2- -4 4 C CH
HE EC CK K T TH HA AT T O OI IL L F FL LO OW WS S F FR RE EE EL LY Y I IN NT TO O T TH HE E P PO OT T.
.
2
2- -5 5. . C CH
HE EC CK K F FO OR R G
GO
OO OD D I
IG
GN NI IT TI IO ON N
Test fire the appliance to make sure that it lights easily, make sure that the low and high
firing rates are correct.
2
2- -6 6 A AD
DJ JU US ST T T TH HE E H HI IG GH H A AN ND D L LO OW W F FI IR RI IN NG G R RA AT TE E.
.
Descaling Device fig 1
Cranked Descaling Lever
Descaler Body
Compression Seal
Compresion Nut
Compression Olive
Slim Back Nut
Slim Back Nut (not shown)
3
3. . A AD
DJ JU US ST T D
DE
ES SC CA AL LI IN NG G D
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EV VI IC CE E F
FI
IG G 1
1
Every 12 Weeks
The descaling device is screwed directly into the vaporising pot and needs to be
dismantled adjusted and cleaned on a regular basis.
When the low fire flow rate is set on a new and clean pot there is no resistance to the
flow of oil.
During normal use carbon will build up around the inner diameter of the descaling device.
This build up will act as a resistor to the flow of oil and the low firing rate will gradually
diminish until there is insufficient oil flow to support low fire, blue flame combustion.