All installations and services must be performed by qualified service personnel.
17
and tank. This requires insertion of the "by-pass" plug into the fuel pump. If the lift
(vertical distance between the supply line inlet and the burner) exceeds
approximately 10 feet, a two-stage pump should be installed with a return line.
When a return line is used with either single or two-stage pumps, in-line air is
automatically returned to the tank, making the oil pump and lines self-purging.
Underground tanks should be located outside the building. Installation of above
ground tanks is permitted inside buildings, under certain conditions, as well as
outside. Consult the Standard for Installation of Oil-Burning Equipment for
restrictions. If permitted, connect the burner oil supply line near the base of the
tank, opposite of the fill end. Connection at this point tends to flush older oil
through and out of the tank. This helps to prevent the accumulation of rainwater
and condensed water vapor in the tank, which can cause the tank to corrode.
If the oil supplier does not already use oil additives, it is recommended that
additives be used to emulsify any water accumulation in the oil.
F. Oil Filter
It is strongly recommended that an oil filter assembly be installed in the oil supply
line to the unit. Use an oil filter with the capacity to trap a 40-50 micron particle
for all installations. Install the filter between the oil manual shutoff valve and the
burner.
The filter cartridge should be replaced at least once a year. The filter body should
be thoroughly cleaned before installing a new cartridge.
G. Burner Specifications And Performance
The appliance is supplied with two oil burner nozzles, one for the high-fire and
one for the low-fire heat input rate. The model OPA has the low-fire, oil nozzle
already installed in the burner by the factory. Table 2 gives the burner
specifications and the estimated performance of the appliance operating under
high and low fire conditions.
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