Bosch HGB330E50Q, Руководство пользователя и инструкции по установке, Страница: 36 / 40

en
Installation instructions
36
21.6 Leak test and function test
The leak test must be carried out by two people.
WARNING ‒ Risk of explosion!
Sparks, flames or open flames may cause explosions
during the leak and function test.
▶
Ensure that no sparks are produced.
▶
Do not use any fire or naked flames.
▶
Only check the leak tightness using a suitable foam.
Gas leak
¡
Close the gas connection locking device.
¡
Ventilate the relevant location sufficiently.
¡
Check the gas and nozzle connections once more.
¡
Repeat the leak test → Page 36 .
Checking the gas connection
1.
Open the gas connection shut-off.
2.
Apply suitable foam around the gas connection.
a
If dispersions and bubbles occur on the foamy sur-
face and these indicate that gas is escaping, follow
the instructions in the section entitled "What to do if
there is a gas leak" →
Page 36 .
3. Follow the same instructions for the part that is
sealed with the blind plug.
Checking the cooker burner nozzles
Check the leak tightness of each nozzle.
1.
Open the gas connection shut-off.
2.
To check, carefully cover the hole in the burner
nozzle with your finger or a special device.
3.
Apply suitable foam around the nozzle.
4.
Press on the burner knob and turn the knob anti-
clockwise. Gas therefore comes to the nozzle.
a
If dispersions and bubbles occur on the foamy sur-
face and these indicate that gas is escaping, follow
the instructions in the section entitled "What to do if
there is a gas leak" →
Page 36 .
Checking the bypass nozzles
Check the leak tightness of each bypass nozzle.
1. Open the gas connection shut-off.
2.
To check, carefully cover the hole in the burner
nozzle with your finger or a special device.
3.
Apply suitable foam around the bypass nozzle on
the burner that is to be checked.
4.
Press on the tap spindle and turn it anti-clockwise.
Gas therefore comes to the nozzle.
a
If dispersions and bubbles occur on the foamy sur-
face and these indicate that gas is escaping, follow
the instructions in the section entitled "What to do if
there is a gas leak" →
Page 36 .
Checking the lower oven gas burner nozzle
Check the leak tightness of each bypass nozzle.
1.
Open the gas connection shut-off.
2.
To check, carefully cover the hole for the burner
nozzle in the oven's lower gas burner with your fin-
ger or a special device.
3.
Apply suitable foam around the nozzle.
4.
Press the function control knob for the oven and
turn the knob anti-clockwise. Gas therefore comes
to the nozzle.
a If dispersions and bubbles occur on the foamy sur-
face and these indicate that gas is escaping, follow
the instructions in the section entitled "What to do if
there is a gas leak" →
Page 36 .
21.7 Checking the correct burner behaviour
Check the burning and soot formation of each burner
after the product has been converted to a different gas
type. If there is a problem, compare the nozzle values
with the values in the table.
Checking the correct burner behaviour of the
cover burner
1.
Ignite the gas cooker burners in accordance with
the instructions in the operating manual.
→
"Operating the hotplate", Page 15
2. Set the gas cooker knob to the small flame setting.
Check whether the flame safety system is working
by keeping the flame at the "small flame" setting for
one minute.
3. Check that the burners are burning correctly with
both large and small flames.
a The flame must burn evenly and steadily.
4.
Turn the burner knob back and forth quickly
between the large flame setting and the small flame
setting. Repeat this process several times.
a The gas flame must not flicker or go out.
Checking the correct burner behaviour for the
lower oven gas burner
1.
Ignite the lower oven gas burner in accordance with
the instructions in the operating manual.
→
"Basic operation", Page 16
2. Open the oven door and observe the flame.
a
The flame must burn evenly.
a The flame may fail during the first few minutes. How-
ever, the flame must stabilise after a few minutes.
3. Switch on the appliance for a few minutes to check
whether the thermocouple becomes sufficiently
warm.
a
Adjust the settings, if required. If the bypass nozzle
on the burner is faulty, replace this.
21.8 Technical data – Gas
The different types of gas and the corresponding val-
ues are listed.
Information on some types of gas
Note the following information for the gas types that are
listed in the table for some burners.
Type of gas Explanation
G20/25
(20/25 mbar) For France and Belgium
G2.350
(13 mbar) For Poland
G30 (50 mbar) The after-sales service must order
the nozzle set HEZ298070.