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100 Operation and Maintenance Manual
15
Approximately 1.5 cm of the large ceramic tube should extend above the top
of the quartz heater assembly. Slide a 1/4" Swagelok nut over the large
ceramic tube and then also slide a 1/4" ferrule over the tube (flat side on
back of the nut).
16 To begin the final alignment and tightening, use a 7/16" wrench and 5/16"
wrench to tighten the 1/4" Burner adapter one-quarter turn past
finger-tight.
17 Using a 5/8" wrench on the heater swivel nut and a 1/2" wrench on one of
the flats of the tapered union fitting, tighten the heater swivel nut
one-quarter turn past finger-tight. Using a 5/16" wrench on the 1/4" Burner
adapter, rotate this fitting so that the brazed H
2
line is aligned 180 °
(opposite) from the oxidizer Inlet port.
18 Making sure that the Burner inlet fitting does not loosen, use a 1/2" wrench
on a flat of the tapered union fitting and 9/16" wrench on the 1/4" Swagelok
Figure 40 Large Ceramic Tube Properly Inserted into the Quartz Heater Assembly
Figure 41 Tightening the Heater Swivel Nut