2017_E_TYPE-HL.doc Page 31 of 55 24-Oct-2017
4.5 Operating Sequence
The sequence of events that occur during normal operation of the oven is explained
below. Further, the electrical component firing sequence is listed in Table 4.1 The wiring ladder
diagram is included in the Appendix.
The process chamber must be heated slowly and evenly without direct exposure to the
flame. This prevents any distortion of material to be heat cleaned. The average time required to
heat the process chamber to operating temperature is 45-75 minutes, depending on the mass of
the material to be heat cleaned and the material being processed. The oxidizer chamber burner
preheats to 1400 degrees Fahrenheit before the process chamber burner activates. This ensures
that the oxidizer chamber is at temperature before any heat induced off gassing or waste
combustion occurs. During the first hour, most of the heat is used to heat the process chamber
and the parts being processed.
A specially designed platform cart is loaded with the material to be heat-cleaned. The
loaded cart is then pushed into the oven and the doors are closed.
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