Haier HCR2250ADS Installation Instructions Manual page 18

4. Replace the injectors with those supplied corresponding to the gas available (see
Burner and Injector Characteristics table).
5. Replace the various parts proceeding in reverse.
When converting from Natural Gas to LPG ensure that the NG regulator is removed
and replaced with the Test Point Assembly. A gas regulator suitable for a supply
pressure of should be part of the gas tank supply and the test point pressure should
be adjusted to the pressure according to the data plate.
SETTING THE MINIMUM FLAME
The flame on the small output is regulated by the factory. When the injectors have
been replaced or there are special mains pressure conditions, it may be necessary to
regulate the minimum flame again.
To set the minimum flame:
•
Light the burner
•
Turn the knob to the minimum position
•
Take out the knob (and gasket if there is one). Turn the screw fully clockwise, and
then turn it counterclockwise 1/4 turn for the Triple ring and 1/8 turn for all other
burners. The result should be a small, stable flame uniform around the entire
burner ring. If not, turn the by-pass screw counterclockwise until satisfied with
the flame.
•
Put the knob back on and turn it quickly from the maximum position to the
minimum position, checking that the flame does not go out.
•
For burners with safety valve, make sure that the regulation obtained is
sufficient to maintain heating of the thermocouple. If it is not, increase the
minimum.
THE BURNERS REQUIRE NO REGULATION OF THE PRIMARY AIR.
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