COZY BFT302 and Руководство по установке и эксплуатации - Страница 12

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The pilot pressure has been pre-set at the factory and with proper supply pressure will provide a safe,

CORRECT

FIGURE 7

All orificing and pressure setting was done at the factory and, with correct supply pressure will provide a safe, efficient

source of heat. If installed above 2,000 ft. elevation, the main burner orifice must be changed. See orifice chart on Page 10

for correct size. If there is any question about the manifold pressure, have a qualified serviceman check using a

manometer. The manifold pressure should be 3.0" w.c. for natural gas and 10.0" w.c. for L.P. gas. A proper burner flame

will have a soft blue outer mantel approximately 3.5 in. tall with a darker blue inner mantel approximately 1/4" tall.

INNER

MANTEL

1/4"

CORRECT FLAME

PROPER OPERATION

ODS / PILOT FLAME

reliable ignition source. See Figure 7.

INCORRECT -

LOW PRESSURE

BURNER FLAME

OUTER

MANTEL

3-1/2"

FIGURE 8

Page 12

INCORRECT - OXYGEN

LEVEL DROPPING

INCORRECT FLAME