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OIL SUPPLY PIPING
Combustion Air Requirements

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 Table 6 Oil Pump Suction Capacity and Filter Selection Chart Gas/Oil Model Oil Model GPH Power Flame Alternate Suction Oil Filter Oil Filter Capacity Model C1-GO-10 70(1) 7031160 73410 (Fulflo FB-6) C1-GO-12 C1-0 and Cl-OS 70(1) 7031160 73410 (Fulflo FB-6) C2-GO-15 C2-OA and C2-OAS 70(2) 7031160 . 73410 (Fulflo FB-6) C2-GO-20A C2-OB and C2-OBS 70 70101-100 73410 (Fulflo FB-6) C2-GO-20B C2.B and C2-OBS 70 70101-100 73410 (Fulflo FB-6) C3.GO-20 C30 105 70101-100 73410 (Fulflo FB.6) C3-GO25 C3-O0 105 70101-100 73420 (Fulflo FB.10) C3-GO-25B C3-OB 135 70101-100 73420 (Fulflo FB-10) C4GO25 C4-OA 135 701014100 73420 (Fulflo FB-10) C4GO-30 C4-OB 135 70101-100 73420 (Fulflo FB-10) G5-GO-30 & 30B C5-O & OB 250 70101-100 73290 (#72 1" Hayward C6-GO-30 C6-O 250 70101.100 with 100 mesh basket) 1.  The standard pump normally supplied is a19 GPH for On-Off  or  Modulating  and  40  GPH  for  fixed  air  low fire start, Low-High  Low  operation.    Optional  pumps are  available  which,  depending  on  model  specified, could  be  as  high  as  70  GPH.    Refer  to  information shipped with the burner and/or consult the factory for specifics. It is very important to properly size the oil suction line and oil    filter    to    provide    fuel    flow    to    the    burner    without exceeding 10” suction pressure (vacuum) at the oil pump suction port. 2.  The standard pump normally supplied is 40 GPH for Low-High-Off and Low-High-Low and 70 GPH for On- Off  and  Modulating  operation.    Optional  pumps  are available  for  Low-High-Off  and  Low-High-Low  which could  be  as  high  as  70  GPH.    Refer  to  information shipped with the burner and/or consult the factory for specifics. The  method  to  properly  size  copper  tubing  is  outlined below   (Fig.   10).      Consult   Power   Flame   Customer Services Department for sizing assistance regarding iron pipe. 1.    Check  oil  pump  “GPH  Suction  Capacity”  shown  in Table 6. 2.    Measure  total  tube  length  (horizontal  and  vertical) from the end of the line in the tank, to the connection at the oil pump. 3.    Choose  the  appropriate  graph  above  based  on  the tubing size.  Read up from horizontal line “total feet of copper tube” to “Suction Capacity” in GPH. 4.    Read  left  to  the  vertical  line  “Inches  of  Vacuum  at Fuel-unit”.  (This is the vacuum required to draw oil through the length of tubing selected.) 5. If installation has  lift  (“Lift”  is  defined  as  the  vertical distance  the  fuel  unit  is  above  the  top  of  the  tank) add “1” of vacuum for every foot of lift. 6. Add  the  vacuum  determined  from  items  4  and  5 together to determine total inches of vacuum. 7. If  total  is  over  10”,  move  to  next  larger  tubing  size chart and re-calculate total inches of vacuum. 8. The instructions above doe not allow for any added restrictions, such as line filter, elbows, sharp bends, check  valves,  etc.    Suction  line  vacuum  values  for such  components  vary  from  one  manufacturer  to another. A   Rule   of   thumb   to   determine   total   vacuum   for suction    line    sizing    is    to    add    10%    to    vacuum determined from Fig. 10 calculations. 9. It is always safe to size the return line from pump to tank at the size as the selected suction line. (page 3-962)







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