Beckett 24 VDC Manual Do Utilizador

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10
Explosion and Fire Hazard 
Failure to follow these instructions could 
lead to equipment malfunction and result 
in heavy smoke emission, soot-up, hot gas 
puff-back, fi re and asphyxiation hazards.
Do not attempt to start the burner when excess oil has 
accumulated in the appliance, the appliance is full of 
vapor, or when the combustion chamber is very hot.  
Do not attempt to re-establish fl ame with the burner 
running if the fl ame becomes extinguished during 
start-up, venting, or adjustment.
Vapor-Filled Appliance: Allow the unit to cool off 
and all vapors to dissipate before attempting another 
start. 
Oil-Flooded Appliance: Shut off the electrical power 
and the oil supply to the burner and then clear all 
accumulated oil before continuing.
If the condition still appears unsafe, contact the Fire 
Department. Carefully follow their directions. 
Keep a fi re extinguisher nearby and ready for use. 
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Section: Start Up Burner & Set Combustion
Professional Service 
Required
Incorrect installation, adjustment, and 
use of this burner could result in severe 
personal injury, death, or substantial 
property damage from fi re,  carbon 
monoxide poisoning, soot or explosion.
Please read and understand the manual supplied with this 
equipment. This equipment must be installed, adjusted 
and put into operation only by a qualifi ed individual or 
service agency that is:
Licensed or certifi ed to install and provide technical 
service to oil heating systems.
Experienced with all applicable codes, standards and 
ordinances.
Responsible for the correct installation and commission 
of this equipment.
Skilled in the adjustment of oil burners using 
combustion test instruments.
The installation must strictly comply with all applicable 
codes, authorities having jurisdiction and the latest revision 
of the National Fire Protection Association Standard for the 
installation of Oil-burning Equipment, NFPA 31 (or CSA-
B139 and CSA-B140 in Canada). Regulation by these 
authorities take precedence over the general instructions 
provided in this installation manual.
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C. Solenoid Valve Testing
To check solenoid operation, perform the following.
Check for oil fl ow and operating pressure by 
removing the copper tubing from the nozzle line 
and installing a pressure gauge in the line. With 
the motor running and the coil energized, check the 
gauge. The pressure should read 100 psig unless 
otherwise stated.
To check the solenoid valve cutoff function, deadhead 
the pressure gauge onto the copper connector tube 
attached to the nozzle port. Run the burner for a 
short period of time. Shut the burner off. The solenoid 
valve should close and the pressure should drop and 
hold.
Replace the solenoid valve if it does not pass the 
previous steps. 
Start Up Burner & Set 
Combustion
A. Basic Burner Operation
With 7559 Primary Safety Control
The 7559 control provides the benefi ts of added safety, 
convenience, and performance. It adds a valve on delay 
and motor-off delay to the burner’s operation sequence that 
promote clean burner operation. It has a lock-out function 
that shuts the burner down if it is not operating properly. The 
control adds fusing at the burner to protect against component 
failures. The control also has redundant motor relays that are 
checked for proper operation every heat cycle.
Variations to the burner circuits may occur due to optional 
temperature, pressure, and vacuum switches that control 
burner operation. Note that when external switches 
are used to control motor operation they must be sized 
correctly for the rated current or a relay should be installed 
to isolate the switches from the motor’s full load current. 
B. Combustion Set-up
As soon as burner motor starts rotating bleed all the air 
from the pump. (Required with single-pipe systems.)
To bleed the pump, attach a clear plastic hose over the 
vent fi tting. Loosen the fi tting and catch the oil in an empty 
container. Tighten the fi tting when all air has been purged 
from the supply system. Note: If the burner stops after a 
fl ame is established, the unit probably requires additional 
bleeding. Continue to bleed the system until the pump is 
primed and a fl ame is established when the bleed valve 
is closed.
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C. Set Combustion with Instruments