Clarus Environmental Fusion Series Treatment Systems 2800/3200/3600/4000 - Manual (Page 6)

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Table 2
FUSION ® DIMENSIONS
SYSTEM L W H I E
ZFL-2800 14' 8" (4.5 m) 7' 0" (2.1 m) 7' 10" (2.4 m) 6' 1" (1.9 m) 5' 7" (1.7 m)
ZFL-3200 15' 0" (4.6 m) 7' 5" (2.3 m) 7' 10" (2.4 m) 6' 1" (1.9 m) 5' 7" (1.7 m)
ZFL-3600 15' 5" (4.7 m) 7' 9" (2.4 m) 8' 0" (2.4 m) 6 '3" (1.9 m) 5' 9" (1.8 m)
ZFL-4000 15' 6" (4.7 m) 8' 0" (2.4 m) 8' 4" (2.5 m) 6' 7" (2.0 m) 6' 1" (1.9 m)
NUMBER OF ACCESS RISERS IN FUSION ® SERIES
ZFL-2800 ZFL-3200 ZFL-3600 ZFL-4000
24" (61 cm ) D iameter 3 3 3 3
26.5" (67.3 cm ) x 45" (114.3 cm ) 1 1 1 1
Table 1
I
E H
OUTLET
INLET
W
L
1) DIMENSIONS "I" AND "E" ARE TO THE BOTTOM
OF THE INLET/OUTLET PIPE.
2) THE OVERALL HEIGHT DIMENSION "H" IS TO THE
TOP OF THE NARROW ADAPTER RING, NOT THE RISER LID.
NOTES:
3) A RISER COVER COMES STANDARD. ADDITIONAL RISERS ARE
PURCHASED SEPERATELY.
Figure 5- Dimensions
sk2624
1. Excavate an area large enough for the Fusion ® Series unit to be installed. See Figure 5 and Table 2 for the actual dimensions of the unit. In
areas where high groundwater is not a concern, excavation dimensions are calculated by adding 12-18" (305-457 mm) to the length and width
of the Fusion ® . This will allow sufficient room for proper backfilling. If it is reasonable to expect a seasonally high water table, consult the Anti-
Flotation Procedures section below.
2. Construct a 6" (152 mm) thick stone pad of either 1/4" - 1/2" (6-13 mm) diameter stone or concrete pad and level to within 1/8" (3 mm).
3.
If the unit is not level, it will cause uneven water flow as well as unbalanced aeration, which will result in poor performance.
4. Gently lift the unit at all four lifting points with a harness and install it on leveled stone pad (Figure 11).
5. Check unit to make certain it is level by placing a level at several locations on the riser. (riser covers removed) (Figure 11).
1. If groundwater is present, anti-flotation measures must be used to
stabilize the unit prior to backfilling. Please follow the procedures
in the Anti-flotation section to properly anchor the Fusion ® .
2. Fill the unit with clean water to the normal operating depth prior to
backfilling. Partition walls between chambers are water-tight and will
fill in succession beginning on the inlet side of the unit. Therefore,
it is best to alternate chambers when filling with water so the unit
remains level. Check for leakage around the unit.
3. See riser instructions page 7. See Table 1 for number and size of
access openings. Riser extensions are available for deeper burial.
Make certain risers are sealed properly and watertight.
4. Install riser covers.
5. Backfill with good quality granular soil around the unit that is free
of organic matter, rock, stone, tree roots, or other debris that could
damage the unit. Unit can be backfilled partially before risers are
installed to aid in riser installation.
6. Tamp soil around perimeter of the unit as it is backfilled to stabilize
the unit and to reduce settling.
7. Finalize backfill with a mounded contour so that surface water is
shed away from the unit. Under no circumstances should surface
water be allowed to accumulate around unit.
8. CAUTION MAXIMUM soil burial depth over the unit is 36
inches (914 mm).
EXCAVATION AND INSTALLATION
BACKFILLING COLD WEATHER INSTALLATION
When installing Fusion ® in cold climates, the blower must be protected
from snow drifts by installing it either inside a garage, home, basement,
crawlspace or riser. If installed in a riser, the blower must be protected
from inundation and must have a vent pipe installed to above the
maximum snow depth with a 180 degree angle at the end to prevent
snow and water entry. Also, the top and sides of the Fusion ® must be
insulated with insulation sheeting or other means to provide a minimum
insulation value of R-8, along with the risers and lids. Please contact
the factory for further information.
ANTI-FLOTATION PROCEDURES
It is necessary to anchor the Fusion ® in high ground water conditions to
prevent flotation. If groundwater rises above the rock or concrete pad
that the Fusion ® sits on, anchoring is required. Please consult a design
engineer, soil scientist or other qualified individual to determine high
groundwater conditions.
1. Follow the procedures outlined in the Excavation and Installation
Section items 1-5 to properly prepare and level the Fusion ®
excavation.
2. Follow the procedures outlined in the Backfilling Section items 1-4
to properly fill the Fusion ® with water and add risers if needed.
3. Refer to Figure 12, Anchoring Schematic to determine the
minimum amount of backfill to be placed around the Fusion ® in the
excavation. Tamp the fill to prevent settling.
4. Refer to Table 3, Concrete Anchoring Dimensions to determine
the amount of concrete needed for the concrete anchor collar that
is poured around the entire circumference of the Fusion ® . Pour
concrete to the specified dimensions to fully engage the mid-seam
of the Fusion ® , which will anchor it once the concrete cures. Make
certain to pour the concrete in a manor to minimize trapped air
within the concrete. Agitating or lightly mixing the concrete with
a metal rod or other similar device once poured will help release
trapped air. Be careful not to puncture or crack the unit.
5. Allow the concrete to harden before final backfilling.
6. Complete the procedures outlined in the Backfilling Section,
items 5-8.