Clarus Fusion Series Owner's Manual - Page 6

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Excavate an area large enough for the Fusion

Excavation dimensions are calculated by adding 12-18" (305-457 mm) to the length and width of the Fusion

proper backfilling.

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 inch (3 mm).

If the unit is not level, it will cause uneven water flow as well as unbalanced aeration, which will result in poor performance.

Gently lift the unit at all four lifting points with a harness and install it on leveled stone pad (Figure 8).

Check unit to make certain it is level by placing a level at several locations on the riser. (riser covers removed) (Figure 8).

BACKFILLING

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

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.

See riser/conversion kit installation.

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.

Fill area around air port with gravel to prevent breakage due to

settling of unit (See figure 7).

Tamp soil around perimeter of the unit as it is backfilled to stabilize

the unit and to reduce settling.

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. Riser extensions are

available for deeper burial.

CAUTION

MAXIMUM soil burial depth is 12" (305 mm).

Table 1

number of access risers in fusion

ZfL-1120

18" (457

) D

iameter

24" (610

) D

iameter

Figure 6 - Dimensions

NOTES:

Dimensions "I" and "E" are to the bottom of

the inlet/outlet pipe.

The overall height dimension "H" is to the top

of the unit.

Riser kits are purchased separately.

EXCAVATION AND INSTALLATION

Series unit to be installed. See Figure 6 and Table 2 for the actual dimensions of the unit.

series

ZfL-1440

ZfL-1680

ZfL-2000

ZfL-2400

COLD WEATHER INSTALLATION

When installing a Fusion

specify insulated lids and risers. In addition, the blower must be

protected from snow drifts by installing it 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° angle at the end to prevent

snow and water entry. Also, the top and the sides of the Fusion

must be insulated with insulation sheeting or other means to provide a

minimum insulation value of R-8. Please contact the factory for further

information.

It is necessary to anchor the Fusion

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

sections, items 1 - 5 to properly prepare and level the Fusion

excavation.

2. Follow the procedures outlined in the Backfilling section, items 1 - 2

to properly fill the Fusion

3. Refer to Figure 9, Anchoring Schematic to determine the minimum

amount of backfill to be placed around the Fusion

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

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 manner to minimize trapped air

within the concrete. Agitating or lightly mixing the concrete with a

metal rod or other small device, once poured, will help release

trapped air.

5. Allow the concrete to harden before final backfilling.

6. Complete the procedures outlined in the Backfilling Section, items 5 - 8.

INLET

. This will allow sufficient room for

unit in cold climates, the designer should

ANTI-FLOTATION

in high groundwater conditions to

with water.

in the excavation.

OUTLET

SK3037

unit

. Pour