Renfert Bijou 90 Series User manual

Bijou 90
No. 960-0000 F / 961-0000 N (H) / 961-0001 N (L)
Bedienungsanleitung
Instruction manuel • Manuel de service
Modo d´impiego • Instrucciones para el servicio
Handleiding
Renfert GmbH • Industriegebiet • 78247 Hilzingen
Germany • Tel. [phone] • Fax [phone]
[email protected] • www.renfert.com
Made in Germany
1101 21-7417

ENGLISH
Bijou 90
No. 960-0000 F / 961-0000 N (H) / 961-0001 N (L)
You have purchased a brand product
from Renfert. To ensure that you
enjoy using this product for many
years, please follow these instruc-
tions carefully.
1. Description /
Applications
The Bijou Burner 90 (F=propane,
N=natural gas) is a very stable labo-
ratory burner with easily adjustable
working position and the option of
operation with pilot flame or ignition
flame.
The burner is supplied in the
following versions:
No. 960-0000 F
>>> burner for propane
No. 961-0000 N (H)
>>> burner for natural gas E
No. 961-0001 N (L)
>>> burner for natural gas LL
Please note:
Old New
natural gas N (H) natural gas E
natural gas N (L) natural gas LL
The burner is type-tested and
approved by the DVGW (German
Association of Gas and Water
Installers).
Type: GH-100-011,
Reg.No. NG-2211A00737
(93.01e044)
2. Installation /
Operation
The burner may only be installed by
qualified staff in accordance with the
DVGW regulations.
1. Insert and fix the gas lever
supplied with the burner into the
screw thread hole on the bur-
ner's operating element.
2. Check whether the type of gas
and operating pressure required
for the burner are compatible
with your gas supply.
3. Inspect the connection pipe to
ensure it is correctly fitted and in
perfect condition.
4. Shut off the gas tap on the
laboratory bench.
5. Push the gas hose (DIN 30664)
onto the inlet nozzle of the Bijou
Burner right up to the last
groove. If necessary, secure the
tube with a clip or circular spring
to prevent it slipping off (see
DVGW worksheet G 621).
6. Adjust the Bijou Burner's gas
lever to position A and open the
shutoff valve on the laboratory
bench. You should now clearly
hear gas flowing out. Carefully
ignite the burner from the side.
Regulate the flame as des-cribed
in point 4. (Handling).

3. Areas of Caution
• The burner should not be used in areas where there is a strong
draught, as this may cause the flame to be extinguished
unintentionally.
• Laboratory burners must only be used under constant
supervision. After finishing work, the gas supply to the
burner must be shut off(shutoff valve, disconnection from the
gas main).
• When used in classrooms, laboratory burners may only be put
into operation after first switching on the upstream shutoff
devices, such as central shutoff for the entire room, group
shutoff device and shutoff valve.
• For installation and operation of gas systems in labs and science
lecture rooms the regulations in the DVGW Worksheet G621
(German regulations) must be heeded.
• After use, the gas supply should be shut off immediately via the
shutoff valve, or, by separating the gas connection safety valve.
• If there is a strong smell of gas, close the gas shutoff valve
imme-
diately and take safety precautions (see DVGW regulations).
• Always observe the accident prevention regulations of the
relevant employer's liability insurers.
3.1 Exclusion of liability
Renfert GmbH rejects any claims for compensation as well as
warranty claims in case of:
• the product is used for any other purpose than those mentioned
in the instruction manual
• the product is changed or amended in any way beyond those
mentioned in the instruction manual
• the product is repaired by a non-authorized party or the product is
not fitted with original Renfert replacement parts
• the product is used continuously despite visible safety faults
4. Handling
The laboratory burner does not have
a closed position! The flame of the
Bijou Burner can be preselected by
means of the gas lever.
The play in the control elements is
intentional. It results from the
prescribed decoupling of valve and
control element. This guarantees
that the valve is always activated
under identical conditions, which is
essential for operational safety.

Position A:
Ignition or pilot flame burns
Position B:
Main flame and ignition flame burn
Position C:
Main flame burns
When selecting positions A and C
the gas lever must always be moved
all the way to the limit stop so that,
firstly, the position is quickly and
unambiguously identifiable if the
burner goes out and, secondly, to
prevent any possibility of flashback
to the burner's jet.
4.1 Regulating the main
flame
The burner's main flame can be re-
gulated by simply turning the knurled
ring on the main burner tube.
A smooth flame is produced by
turning the knurled ring upwards.
The air feed is reduced and the
flame becomes smooth.
A harsh flame is produced by
turning the knurled ring downwards.
The air feed is increased and the
flame becomes harsh.
4.2 Regulating the pilot
flame
A smooth flame, which burns very
stably, is produced by pushing the
sleeve over the air-feed holes of the
small burner tube.
A harsh flame, which is, however,
more easily extinguished, is pro-
duced by pushing the sleeve away
from the air-feed holes of the small
burner tube.
CB
A
The ignition flame should be as
stable, and therefore as smooth,
as possible in order to ensure
reliable burner operation. Adjust
the flame so that it cannot be
extinguished unintentionally.
4.3 Adjusting the burner
position
The burner can be positioned at
three different angles:
To adjust the burner to the angle
which suits you best, simply lift it out
of its base and reinsert in the
required position.
The burner is thus equally well suited
for left-handed and right-handed
users.
60o90o 120o
The burner should not be
used in the 90° position when
wor-king with wax, since
dripping wax may block the
jets and cause the burner to
malfunc-tion.

Fault Cause Remedy
If the burner will not
light in spite of the
gas shutoff valve
being open and no
gas is heard
escaping.
•Central gas supply
has not been turned
on / gas bottle is
empty.
•Jets are blocked or
dirty.
•Operational error.
•Screw off burner tubes
and carefully clean the
jets with a soft cloth.
Do not screw out the
jets !
If the burner will not
light even though
there is a loud noise
of escaping gas.
•Strong draught in the
area of the burner.
•Incorrect type of gas
or supply pressure.
•Eliminate the draught,
reposition the burner.
•Check supply pressure
and type of gas.
If there is a smell of
gas when the burner
is alight.
•Connections are
leaking.
•Burner is leaking.
•Check the
connections.
•If the burner leaks do
not carry out repairs
yourself, send burner
for inspection.
5. Troubleshooting Guide
6. Cleaning /
Maintenance
The Bijou Burner requires no
maintenance. From time to time the
burner should be cleaned. Please
observe the following cleaning
instructions:
1. Never clean the burner with
boiling water! The burner cone is
sealed with grease which
may be washed away causing
the burner to leak.
2. The maximum temperature for
cleaning is 50oC (122ºF).
3. Do not use cleaning agents
because of the risk of chemical
reaction.
4. To clean the valve only use a
duster or moist leather (must not
be dripping wet)!
5. To clean the burner close the
shutoff valve, pull the hose off
the burner and wipe the burner
clean with a cloth or leather. The
burner tubes can be screwed off
and cleaned separately.
6. Do not dismantle the burner!
7. Never drill out the burner jets.
8. Do not blow out the burner's inlet
nozzle with compressed air.
This could blow away the
sealing grease and cause the
burner to leak.
9. The burner jets must not be
screwed out for cleaning. The
burner could start to leak and
safe use is no longer
guaranteed.

If the burner nozzle becomes
plugged, disassemble the
tubes than hold the burner
with the nozzle facing down.
Use a hair dryer or other
device genera-ting hot air,
7. Switching to a
different type of gas
The Bijou 90 conforms with the regu-
lations set out in DIN 30665 Part 1
and enables a switch to another type
of gas by changing the set of burner
nozzles.
Type of gas and power:
Rated power
Type of gas Small
nozzle
Large
nozzle Load Load large tube
Load small
tube
Product ref.
mark
Liquid gas
G 30 /
50 mbar
D 0.18 mm D 0.34 mm 0.66 kW 0.5 kW 0.16 kW 960 F
Natural gas
H (E) G 20 /
20 mbar
D 0.32 mm D 0.55 mm 0.66 kW 0.49 kW 0.16 kW 961 N
Natural gas
L (LL) G 25 /
20 mbar
D 0.35 mm D 0.61 mm 0.66 kW 0.48 kW 0.16 kW 961 N
melt the wax plug and allow the
molten wax to completely run
out.
If this method fails to clean the
nozzle, it must be either cleaned
or replaced by an authorized
technician.
The installed nozzles are not
marked.
• The natural gas H version is
distinguished with the sticker
"Erdgas H" (Erdgas E).
• The natural gas L version is
distinguished with the sticker
"Erdgas L" (Erdgas LL).
• The liquid gas version is
distinguished with the sticker
"Flüssiggas".
The predetermined lab burner can be
switched over to natural gas H (E),
natural gas L (LL) and liquid gas by
changing the set of nozzles and its
respective sticker. The relevant
conversion sets are given in the table
above. Each set consists of a small
nozzle, a large nozzle and a sticker
naming the respective type of gas.
The conversion sets are featured in
the spare parts list.
The changeover of the nozzles
must only be carried out by quali-
fied specialists in accordance with
DVGW regulations (German legis-
lation - check local regulations).

8. Spare Parts
You will find the order numbers in the
attached list.
9. Guarantee
All burners are examined carefully
by us before dispatch. Should any
malfunctions occur please send in
your burner for repair with a descrip-
tion of the problem. Do not try and
repair the unit yourself!
The burner’s nozzle and pipe are
harmonised and should not be
changed as they will then no longer
comply with regulations. When used
properly Renfert guarantees all parts
of the Bijou 90 for 3 years. Parts
given to natural wear and tear are
excluded from this guarantee.
The guarantee is void for damage
caused by mis-use, disregard of the
instructions for use, cleaning, main-
tenance and connection, for self-
repaired units or repair by untrained
personnel, for use of spare parts
from other manufacturers and on
influences outside the normal prac-
tice or unauthorised in the instruc-
tion manual. Services under guaran-
tee do not extend the guarantee.
Type
960-0000
F
961-0000
N (H) / (E)
961-0001
N (L) / (LL)
Height 100 to 107 mm
(depending on the angle)
Weight 530 g (with burner base)
Connec-
tion hose As per DIN 30664
Supply
pressure 50 mbar 20 mbar 20 mbar
Consump-
tion 48 g / h 63 l / h 72 l / h
Output 660 W
Mode of
operation Continous operation
Ambient
tempera-
ture
max. 40ºC (104ºF)
11. Parts supplied
1 burner
1 gas lever set
1 burner base
1 manual
1 spare parts list
10. Technical
Specifications
Subject to modification.