The Combustion Principle For Gas; Operating Instructions - Jøtul GF 3 BF2 Instrucciones Para Instalación

ENglish
8.0 The combustion principle
for gas
Combustion requires 3 main ingredients: Heat, fuel and oxygen. If
one of the main ingredients is altered, it may result in incomplete
combustion. This basic principle is important to remember in the
trouble-shooting process. Combustion is not possible if one of
the 3 ingredients is missing.
Oxygen blend:
10 m 3 oxygen to 1 m 3 natural gas
Natural Gas:
24 m 3 oxygen to 1 m 3 propane/butane
Propane/butane:
8.1 Required heat during combustion
Constant flame heat during use of the stove is crucial for
complete combustion. The personnel installing and servicing
the stove must ensure that the ceramic logs/coals are placed
correctly in the firebox and not allowed to drop on to burner
holes for example.
The customer must be made aware of this, if the customer
personally is going to remove and replace the logs/coals.
If the ceramic logs or coals are obstructing the flame too much,
they may attract heat from the flame and consequently lower
the temperature of the flame. This would result in incomplete
combustion, poor flame pattern and increasing values of
carbon monoxide (CO). A high production of CO could lead to
accumulation of soot on the ceramic logs/coals, the glass and
on the exterior of the building.
(See if possible section under Trouble shooting - Problems with
the flame pattern.)
8.2 Generation of sparks at the pilot head
Jøtul GF 3 BF2 is equipped with a spark ignitor. This is a normal
spark ignitor, which is supplied with many current gas products.
The spark generator is operated when the control knob is pushed
in and turned by the ignition position. The spark is conducted
via an insulated wire to the pilot burner, where it is fastened
with ceramic insulation The hot spark jumps from the tip of the
ignitor, called the electrode, to the pilot head and returns to the
ground connection. The hot spark is sufficient to light natural
gas and propane.
The spark ignitor in a gas stove generates:
Natural gas requires:
Propane/butane require:
Required gas pressure
Gas type Right testpoint (A)
Inlet pressure
Nat. Gas G20 20 mbar
Nat. Gas G25 25 mbar
LPG G30/G31 37 mbar
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9.0 Operating instructions

9.1 Lighting
Note! Odours when using the stove:
When used for the first time, the stove may emit an irritating gas
that may smell a little. The gas is not toxic, but the room should
be thoroughly aired out.
During first-time use, it may take a little while before the gas
reaches out to the stove, but subsequently the stove should
function as described in the lighting instruction.
The stove operates with the aid of a pilot flame, which is lit
manually according to the lighting instructions.
Prior to lighting: Check the area around the stove for possible
gas leaks/odours. Especially check near the floor, since propane/
butane is heavier than air and would gather close to the floor in
the event of a leakage. (Note: Natural gas is lighter than air and
will gather under the ceiling). If you detect an odour of gas, see
warning under: «3.0 Safety precautions».
Only use your hands to operate the control knobs; do not use
tools. If you are unable to turn or push in the control knob, do
not use force. Call for assistance.
Do not use the stove if any part of it has been submerged in water.
Call for service to replace the parts that have been in water.
9.2 Lighting instructions
Lighting the pilot flame (fig. 7)
• The control knobs are located under the stove.
• Make sure any gas valve on the pipe to the stove is open.
• Make sure the control knob (2) is in the correct position
(max.).
• Turn the control knob (1) a little to the left (to «Ignition») until
it stops. Push in and hold it in whilst turning it until you hear
a clicking sound. Repeat this until you see the pilot flame on
the left side below the front coals/log in the burn chamber.
• Continue to hold the knob in for approx. 10-15 seconds before
you let it go.
• If the pilot flame goes out, turn the control knob back and try
again. Make sure that it is held in firmly for at least 10 seconds
after lighting.
• Note: It is impossible to turn the gas control knob unless it
920°C
is pushed in a little. Do not use force.
620 °C
• Then turn the knob (without pushing it in all the way) to the
500-600°C
position «ON» (picture of big flame).
• Note: If the appliance is shut down during operation it may
take up to 2 minutes before the control knob can be turned
from the OFF position again. This is a safety feature and is
perfectly normal.
Note: If the gas control knob does not pop out when released,
call for service.
Left testpoint (B) Hot
Set by adjustment
High Low
12,5 mbar 3,6mbar
10,0 mbar 3,6 mbar
19,0 mbar 8,9mbar
Left Testpoint (B) Cold
Set by adjustment
High Low
12,0 mbar 3,1 mbar
9,5 mbar 3,1 mbar
18,5 mbar 8,4 mbar