23
Fuel Flow Measurements
If your heater is burning rich (making soot or smoking) or burning lean
(flames not burning above the top burner ring), adjust the valve fuel flow as
follows regardless of what type of fuel:
1)
Unscrew the compression nut from the bottom of the valve with 2
wrenches and bend away the copper fuel line. Allow the oil to drip into a
cup or container.
2)
Lift and turn the valve knob to the #1 setting. Measure the quantity
of oil dripping slowly from the fuel outlet.
Model 100 & 120
1 teaspoon in 90 seconds (2.5
c.c.'s / minute)
Model 170 & 180 1 teaspoon in 75 seconds (3 c.c.'s /
minute)
Fuel Variations
It is unlikely that the fuel you are using is the same viscosity as the fuel used
to calibrate the oil-metering valve. Diesel is one of the few fuels you can
reliably get all around the world but the quality and viscosity of that fuel is
variable. Fuel differs on a routine basis even though you buy the same oil
from the same supplier. Factors influencing oil viscosity include: the
temperature; the age and quality of the fuel; the regional differences due to
local refineries; and the particular mix of certain brands of fuel.
The oil metering valve is calibrated for #2 diesel, unless otherwise
requested. Burning diesel #1 (stove oil) will allow 25% more fuel and
burning kerosene will allow 50% more fuel to flow through the oil-metering
valve. Because of this, it is important to burn the fuel for which the heater
has been calibrated. Metering valves are available for diesel (D stamped on
the side of the valve), kerosene (K) or stove oil (SO).
It is important to know that although you can re-calibrate your valve to each
variation of fuel, you can also adjust the way you operate the heater to
compensate for these variations. If the oil is thicker than usual, open the
valve more or use less of the fan. If the fuel is thin, run the fan more to burn
off the fuel to keep a clean burn.
Содержание Sig100
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