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Section 1: DescriptionlGFisoo
1-12 BURNER
This burner is a Bunsen type with a specially
structured flame port section, which shapes and
positions the flame, so it can be wrapped by the
secondary air flow, and burn completely.
Secondary Air
Flame Port Section
Primary Air and Gas
Mixture
Burner Port Assy
Burner Assy
Mixing Plate
Burner Chamber
Secondary Air
Orifice
Figure 1 -6
1-13 ORIFICE
NOTE:
The orifice is made of brass, inserted into the
For altitude applications over 2,000 feet refer to
gas passage of the mixer, and fixed by the gas
page 22.
pipe.
/^WARNING:
Use of incorrect orifice will create a fire hazard
and damage unit.
Gas Type
Shape, Stamp
Orifice size
Natural
h
IIS
V
Dia 2.38mm
LP
Dia 1.87mm
Figure 1-7
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