Section:
Pre-Installation Checklist
Combustion Air Supply
Adequate Combustion and
Ventilation Air Supply Required
Failure to provide adequate air supply could result in asphyxiation, explosion or fire hazards.
yThe burner cannot properly burn the fuel if it is not supplied with a reliable combustion air source.
yFollow the guidelines in the latest editions of the NFPA 31 and
The burner requires combustion air and ventilation air for reliable operation. Assure that the building and/or combustion air openings comply with National Fire Protection Standard for
31.For appliance/burner units in confined spaces, the room must have an air opening near the top of the room plus one near the floor, each with a free area at least one square inch per 1,000 Btu/hr input of all fuel burning equipment in the room. For other conditions, refer to NFPA 31 (CSA
If there is a risk of the space being under negative pressure or of exhaust fans or other devices depleting available air for combustion and ventilation, the appliance/burner should be installed in an isolated room provided with outside combustion air.
Clearances
With the burner installed in the appliance, there must be adequate space in front of and on the sides of the burner to allow access and operation. Verify that the clearance dimensions comply with all local codes and with the appliance manufacturer’s recommendations.
Fuel Supply
Oil Supply Pressure
Control Required
Damage to the filter or pump seals could cause oil leakage and a fire hazard.
yThe oil supply inlet pressure to the burner cannot exceed 3 psig.
yDo not install valves in return line.
yInsure that a pressure limiting device is installed in accordance with the latest edition of NFPA 31.
yGravity Feed Systems: Always install an
The fuel supply piping and tank must provide #1 or #2 fuel oil at pressure or vacuum conditions suitable for the fuel unit (oil pump) on the burner. Refer to fuel unit literature in the literature envelope in the burner carton to verify allowable suction pressure.
If fuel supply is level with or higher than fuel unit:
○When the fuel unit is not required to lift the oil, the installation is usually suitable for either a
○The fuel unit is shipped with the
When fuel supply is below the burner fuel unit:
○Use a
Nozzle Pressure
Correct Nozzle and Flow
Rate Required
Incorrect nozzles and flow rates could result in impaired combustion, under- firing,
Use only nozzles having the brand, flow rate (gph), spray angle and pattern specified by the appliance manufacturer.
Follow the appliance manufacturer’s specifications for the required pump outlet pressure for the nozzle, since this affects the flow rate.
yNozzle manufacturers calibrate nozzle flow rates at 100 psig.
yThis burner utilizes pressures higher than 100 psig, so the actual nozzle flow rate will be greater than the gph stamped on the nozzle body. (Example: An 8.00 gph nozzle at 150 psig = 9.80 gph and at 300 psig = 13.86 gph)
yFor typical nozzle flow rates at various pressures refer to Table 1.
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