Beckett 800 Manuel D’Utilisation

Page de 16
6104 BCF5 R07
7
Mount the burner
Mount fl ange(s) on air tube
This section does not apply to burners with welded fl ang-
es.
Do not install air tube on burner.
For  non-pressure  fi ring  fl ange, refer to Figure 4: Install 
gasket (item a) and fl ange  (item  d). Ignore the next 
paragraph.
For pressure-fi ring fl ange, refer to Figure 4: Slide gasket 
(item a) onto the air tube, making sure the top of the air 
tube is up. Pre-drill holes in the pressure fi ring plate (item 
b) to match the appliance studs. Slide the pressure fi ring 
plate (item b) and fl ange  (item  d) onto the air tube as 
shown. Wrap ceramic fi ber rope (item c) around the air 
tube and press tightly into the inside diameter of the fl ange 
(item d).
Slide the air tube (item e) into position in the appliance 
front. Tighten the fl ange-mounting-stud nuts. Set the 
insertion of the air tube so dimension G is 1/4” nominal.
Pitch the air tube at 2° from horizontal as shown and secure 
the fl ange to the air tube.
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y
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y
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Protect the Air Tube From 
Overheating
Overheating could cause damage to the air 
tube and other combustion components lead-
ing  to equipment malfunction and impaired 
combustion performance.
The end of the air tube must not extend into the com-
bustion chamber unprotected unless it has been facto-
ry-tested and specifi ed by the appliance manufacturer.
Position the end of the air tube 1/4” back from fl ush 
with the refractory inside entry wall to prevent damage 
from overheating.
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Figure 4 - Mount fl ange(s) on air tube
Firebox 
pressure             
(in w.c.)
CF500
CF800
CF500
CF800
Tube 
KK
Tube 
KH
Tube 
KJ
Tube 
KK
Tube 
KH
Tube 
KJ
No reserve air
10% Turndown
0.0”
5.50
7.00
8.00
4.95
6.30
7.20
0.1”
4.75
6.25
7.50
4.27
5.62
6.75
0.2”
4.00
5.50
6.75
3.60
4.95
6.07
0.3”
3.50
4.50
6.25
3.15
4.00
5.62
0.4”
2.75
3.75
5.50
2.47
3.37
4.95
0.5”
2.00
3.00
5.00
1.80
2.70
4.50
Note: The above ratings may vary 5% due to variations in actual 
job conditions. 
Table 2 - Air tube capacities vs fi rebox pressure
Stray Light
‰
The control must detect a dark, no-fl ame condition in 
order to start the burner or it will hold in the stray light 
lockout mode.
Shield the burner from direct exposure to intense 
light.
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y
Protect Against Stray 
Light Lockout 
Failure to follow these instructions could cause 
loss of burner operation resulting in no heat, an 
unplanned process interruption, work stoppage 
and the potential for frozen plumbing or other 
cold weather property damage.
This burner is designed for clean, dry installations.
Electrical controls are not protected against rain or 
sprayed water.
Keep the installation clear of dust, dirt, corrosive va-
pors, and moisture.
Protective covers and more frequent maintenance may 
be required.
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y
y
y
Wet, dusty environments could lead to blocked 
air passages, corrosion damage to components, 
impaired combustion performance and result in 
asphyxiation, explosion or fi re.
Protect Against Dust and 
Moisture 
Dust and Moisture
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