Thermo Products OPB (24, 36)- 80, 30 F. Oil Filter, G. Burner Specifications And Performance

All installations and services must be performed by qualified service personnel.

When the oil tank is located below the level of the burner, it is necessary to “lift” the oil to the burner. A return line should be connected between the fuel pump 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. The OPB has been shipped with a pre-mounted oil filter. Should the filter need to be changed, replace with a similar or better filter with the capacity to trap a 40-50 micron particle.

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 model OPB has been factory equipped with the Beckett AFG oil burner. A

.60 gal. X 80° A nozzle has been factory installed to provide low-fire operation. Table 2 gives the burner specifications, estimated input/output performance and the required nozzle size for high-fire operation.

Note: High-fire nozzle is not included with OPB.

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