MEDIBURN30 10 D-115 Rev 010
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BUTTERFLY ASSEMBLY
The butterfly assembly, located just above the lower burner, is used to open
and close an air bypass. This motor function should be checked on a regular
basis to ensure that it is working properly. In the top of the motor bracket,
there is a small hole that will allow you to view the shaft coupler set screw.
This set screw will turn and disappear out of sight when the motor is activated.
This process can be easily viewed when the lower chamber temperature is
between 600° Celsius and 1000°
Celsius (1112° Fahrenheit and 1832°
Fahrenheit).
The picture to the right shows the set screw
(arrow) as it appears when the MediBurn30 is in
idle. This set screw will rotate out of view when the
temperature climbs above 600° Celsius (1112°
Fahrenheit), indicating the butterfly valve has
opened, allowing air to bypass into the under-air
system. When the lower chamber temperature
reaches 1000° Celsius (1832° Fahrenheit), the
butterfly valve will close and the set screw will
again be visible. It can also be felt by using your
finger. This bracket rarely gets very hot, due to the
cold air that passes through the tubing and
butterfly valve, making it possible to check this by
hand as well as sight. Should you have to replace
this motor, be sure to orient the set screw so that it
can be viewed through the view hole.
NOTE: It is important to maintain this motor in good working condition, as it is
instrumental in the process of fuel savings.
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