Hastings COUNTERFLO CF SERIES, Инструкция по установке и обслуживанию

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WARNING: Never stand within the swing radius of the access door when making flame
observations through the peephole.
Proper flame travel within the stainless steel combustion chamber differs from the
pattern usually desired for a refractory lined furnace. Never adjust the burner to
produce a short “bushy” flame concentrated in the front end of chamber as shown in
Figure 10A. Such a flame concentrates heat release in the front end of the chamber
and creates a short circuit between the burner and economizer tube section which
results in high stack temperature. Figure 10B illustrates a flame that is much too long
and will cause over-heating of the rear wall. A correct flame should be fairly vigorous,
free of smoky haze, and should barely impinge on the rear wall of the chamber. Figure
10C illustrates proper flame travel. This long steady flame provides adequate time for
complete combustion and balanced heat release to all surfaces of the chamber. Typical
draft conditions are noted in Figure 11 for firing at full rate capacity. Adjust to field
conditions when necessary.
12. Burner Start-UP
a. Gas Systems:
Open the air louver on the air inlet to approximately the one-half open position.
Open the manual gas valve slowly, burner will ignite. Open valve until gas pressure
on the gauge is approximately 4 ounces. Observe flame conditions. If gas flame
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