② how to adjust
ⓐ
first stage(low combustion) air adjustment : loosen the nut A, and adjust the
damper opening B for normal combustion.
then fully tighten the nut A.
ⓑ second stage(high combustion) air adjustment : loosen the nut D in the high
combustion mode, and tighten adjuster nut C to increase air flow rate until no
smoke coming out from the chimney, when adjustment is over, fully tighten
the nut D so that the adjuster nut is not loosened.
(2) damper motor.
① structure
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