Pellet Suction System; Assembly Of The Vacuum System - Okofen PELLEMATIC SmartXS Installation Manual

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7.2 Pellet suction system

The pellet suction system consists of the pellet hose, air hose and a suction turbine. The suction vacuum turbi-
ne in the hopper conveys pellets in the pellet line from the storage room or fabric tank to the hopper.
Key components of pellet suction system
1 Pellet- Suction hose
2 Pellet- Return air hose
3
Suction fan / Vac
turbine
4 T-piece at end of stora-
ge system auger
5
Suction Metering
Switch
Pellet boiler

7.2.1 Assembly of the vacuum system

The pellet hose and the air hose are flexible spiral hoses made out of plastic. A copper braid embedded in the
hose dissapates static charge when properly grounded.
Assembly guidelines
• Bending radius: The hose should be as short as possible and with as few curves as possible. Bending radius
may never be smaller than 12 inches.
• Vertical Lift: Max difference in height = 10 feet. A difference in height of up to 10 feet can be overcome at
one time.
Larger differences in height must by interrupted with a minimum 4 foot flat section of hose for the pellets.
• Impact protection / Velocity Control: The spiral hose can be run no more than 13 feet in a straight line.
Small bends particularly in front of curves reduces the abrasion of the spiral hose by controlling pellet
velocity.
• Installation in the soil and openings: When burying hose in the ground, it must be inside a protective pipe
such as electrical conduit that is 4 inch in diameter. This pipe must be sealed and may not make any arc mo-
re than 15°.
• Hose to be Air Tight: For trouble free operation, the vacuum system must be 100% air tight at all
connections!
All connection points must be secured with a hose clamp.
• Grounding: The hoses are provided with a copper braid which helps the hose dissipate static charge. In or-
der to ensure this function, copper braid must be connected to a known ground point at each end.
PE 607 USA_FA 2.1
Line from the storage room auger or fabric tank to the hopper.
Line from the suction fan to the storage room auger or fabric tank.
Located beside the hopper behind the Pellet boiler burner housing.
Located at front end of the storage room auger, outside the storage
room.
Located underneath the fabric tank.
Version A pellet storage room
Pellet suction system
Version B fabric tank