Bradford-White Corp Powered Direct Vent Series Manual De Usuario

 

 

33 

 

 
Cast Iron Burner:  At the time of installation and at periodic intervals (not more 
than 6 months), a visual check of the main burner and pilot flames should be 
made to determine if they are burning properly.  For ideal operation, the gas and 
air must be properly proportioned.  The proper air-gas mixture is obtained by 
adjusting the air shutter on the mixer face of the main burner (See Figure 11).  To 
adjust for proper burning, loosen the air shutter nut (if provided), rotate shutter to 
close the opening in the burner then slowly rotate the shutter until the yellow tips 
disappear and the flame becomes blue. On 75-gallon models fired on LPG or 
propane, adjust the air shutter as described above until the yellow flame is 
minimized (note-the burner flame may contain a mixture of yellow and blue). 
Tighten the air shutter nut (if provided).  Too much air will cause the flame to lift 
off the burner ports and create noisy operation.  Too little air will result in soot 
formation.  The main burner flame should light smoothly from the pilot. 
 
Steel Burner:  These models are equipped with self adjusting air mixture and do 
not have an adjustable air shutter (See Figure 11).  At periodic intervals a visual 
check of the main burner and pilot flames should be made to determine if they 
are burning properly.  The main burner flame should light smoothly from the pilot.