Proper Operation - COZY BFT101 Installation And Operation Instructions Manual

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