Beckett CULUS CF1400 Manuel D’Utilisation

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Pre-Installation Checklist
Combustion Air Supply
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 one-pipe or 
two-pipe oil system. The oil pressure at the inlet of 
the fuel unit must not exceed 3 psig.
The fuel unit is shipped with the by-pass plug 
installed. Leave the by-pass plug installed for all 
low/high fi ring burners, regardless whether one-
pipe (with by-pass loop) or two-pipe. See Figure 
9
 for installation of the by-pass loop required for 
one-pipe fuel supply installations. See Figure 10 for 
connections to the fuel unit for two-pipe fuel supply 
installations.
When fuel supply is below the burner fuel unit:
Use a two-pipe oil system when the fuel unit must 
lift the oil more than 8 feet. The return line provided 
by the two-pipe system is needed to minimize the 
effects of air-related problems during operation.
Nozzle Pressure
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 Oil-Burning Equipment, NFPA 
31. For appliance/burner units in confi ned spaces, the 
room must have an air opening near the top of the room 
plus one near the fl oor, 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 B1139-M91 in Canada).
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
Adequate Combustion and 
Ventilation Air Supply Required
Failure to provide adequate air supply could result in 
asphyxiation, explosion or fi re hazards.
The burner cannot properly burn the fuel if it is not 
supplied with a reliable combustion air source.
Follow the guidelines in the latest editions of the 
NFPA 31 and CSA-B139 regarding providing 
adequate air for combustion and ventilation.
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Oil Supply Pressure 
Control Required
Damage to the fi lter or pump seals could cause oil 
leakage and a fi re hazard.
The oil supply inlet pressure to the burner cannot 
exceed 3 psig
.  
Do not install valves in return line.
Insure that a pressure limiting device is installed in 
accordance with the latest edition of NFPA 31. 
Gravity Feed Systems: Always install an anti-siphon 
valve in the oil supply line or a solenoid valve (RWB 
Part # 21789) in the pump/nozzle discharge tubing 
to provide backup oil fl ow cut-off protection. 
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Correct Nozzle and Flow 
Rate Required
Incorrect nozzles and fl ow rates could 
result in impaired combustion, under-
fi ring, over-fi ring, sooting, puff-back of 
hot gases, smoke and potential fi re or 
asphyxiation hazards. 
Use only nozzles having the brand, fl ow rate (gph), 
spray angle and pattern specifi ed by the appliance 
manufacturer.
Follow the appliance manufacturer’s specifi cations for 
the required pump outlet pressure for the nozzle, since 
this affects the fl ow rate. 
Nozzle manufacturers calibrate nozzle fl ow rates at 
100 psig.
This burner utilizes pressures higher than 100 psig, 
so the actual nozzle fl ow 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)
For typical nozzle fl ow rates at various pressures 
refer to Table 1.
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Section: Pre-Installation Checklist