Beckett AFII 150 Manuel D’Utilisation

Page 6

 

RWB 6104 BAFII R01

Inspect/Prepare Installation Site

  Inspect the chimney or vent. Make sure it is properly 

sized and in good working condition. Follow the in-
structions supplied by the appliance manufacturer.

  See NFPA Standard 31 for complete details.

  Appliances located in confi ned  spaces:  All 

confi ned spaces should have two (2) permanent 
openings; one near the top of the enclosure and 
one near the bottom of the enclosure. Each open-
ing must have a free area of not less than one (1) 
square inch per 1,000 BTU’s per hour of the total 
input rating of all appliances within the enclosure. 
The openings should have free access to the build-
ing interior, which should have adequate infi ltration 
from the outside.

  Exhaust fans and other air-using devices: Size 

air openings large enough to supply all air-using 
devices in addition to the minimum size required 
for combustion air. If there is any possibility of the 
equipment room developing a negative pressure 
due to exhaust fans, clothes dryers, etc., either 
pipe combustion air directly to the burner or provide 
a sealed enclosure for the burner and supply it with 
its own combustion air supply.

·  When sidewall venting appliances, carefully follow 

appliance and power venter instructions for instal-
lation and wiring.

·  AFII burners are equipped with a removable air in-

let to allow use of a 4” duct to supply outside air 
for combustion. Do not exceed 70 equivalent feet.  
Allow 6 feet for each elbow.

1. Remove the inlet cover.
2. Insert 4” duct into the inlet ring.  
3. Fasten duct into place using at least 3 sheet met-

al screws evenly spaced around the inlet ring. 
Refer to Figure 2.

4. Remove the barometric draft control unless it is 

in the same atmospheric pressure zone as the 
inlet.

  On the outside of the home use a 90° elbow pointed 

downward with a 

1/4

” mesh screen over its opening.  

The air inlet elbow must be located above the snow 
line and in such a way as to prevent leaves and/or 
other debris from blocking the air fl ow.  Such debris 
will prevent proper operation of the burner.  Refer to 
local codes for proper location of inlet.

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 ad-
equate air for combustion and ventilation.

•

•

WARNING

4 inch Duct

Air
Inlet
Elbow

1/4”
Mesh
Screen

Inlet Ring

SK8810

SK9642

SK9642