Hkoenig BW1890 Manuel D'utilisation page 18

It is normal to have more bubbles when pouring the first 3 cup
11.
of beer.
There will be a sharp and high-speed jet when pouring the last
12.
cup of beer from keg.
Please adjust the CO2 pressure regulation knob to "-" position to
close the CO2 supplying and save the CO2.
C. HEINEKEN KEG
Heineken kegs are pre-charged with CO2, and do not require the
use of regulator, no need to install the CO2 cartridge. And the knob
on the top cover does not work.
CO2 connector position
The Heineken connector that comes with your beer cooler can
1.
work with all Heineken 5 liter kegs. However you must use a flat
head screwdriver to remove the green base from the keg in
order to install the new connector, provided with the beer
cooler.
When install the new connector to the Heineken keg, you must
2.
firstly install the clear beer tube one end to the connector, one
end to the tap mechanism, then install the connector to the
Heineken keg.
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Figure 21