Installation; Physical Installation - Little Giant 5.5 Serie Manuel D'utilisation

INSTALLATION

Physical Installation

INSTALLATION
Physical Installation
1. Pump must be installed in a suitable gas-tight basin that is at least 14" in diameter and 18" deep and
vented in accordance with local plumbing codes.
2. Clean any debris from the basin and set the pump in the center of the basin (refer to
tion" on page 5
). A solid bottom will prevent clogging of the pump from sand and dirt.
3. The pump must be placed on a hard, level surface. Never place the pump directly on clay, earth or
gravel surfaces. These surfaces contain small stones, gravel, sand etc. that may clog or damage the
pump and cause pump failure.
4. Do not attempt to restrict the intake side of these pumps. Restricting the intake may cause damage to
the seal and may starve the pump. If reduced flow rates are required, place a valve on the discharge
side of the pump. Or, if flexible vinyl tubing is used, a clamp can be used on the tubing to restrict the
flow.
5. Connect discharge piping (or garden hose using included ¾" GHT adapter). Use pipe joint compound at
all connections. The discharge pipe should be as short as possible and contain as few elbows as possi-
ble. The discharge pipe should be the same diameter as the discharge size to reduce pipe friction
losses. A smaller pipe will restrict capacity and reduce pump performance. The pump comes with a 1 ½"
female NPT pipe thread discharge and a ¾" GHT garden hose adapter.
• Support the pump and piping while assembling and when installed. Failure to do so may cause the
piping to break, the pump to fail, motor bearing failures, etc.
• Always install a union in the discharge line just above the basin cover to allow for easy removal of
the pump for cleaning or repair.
6. A check valve must be used in the discharge line to prevent backflow of liquid into the basin. The check
valve should be a free-flow valve that will easily pass 3/8" semi-solids.
Risk of property damage due to flooding.
• Do not install the check valve in a vertical position, as solids may settle in the valve and prevent the
valve from opening on start-up. For best performance of the check valve when handling solids,
install it in a horizontal position or at an angle of no more than 45°.
• When a check valve is used, drill a relief hole (1/8" or 3/16" in diameter) in the discharge pipe. This
hole should be located below the floor line between the pump discharge and the check valve. Unless
such a relief hole is provided, the pump could "air lock" and will not pump water even though it will
run.
7. Tape the pump and switch cords to the discharge line with electrical tape. This will protect the cord
from damage.
8. Test the operation of the pump system by following the instructions in
page 6
of this manual. Do not attempt to operate the pump without water; this will damage the seals
and bearings and could result in permanent damage to the pump.
9. Place cover over basin. This cover will help prevent debris from entering the pit and will guard against
accidental injury.
4
"Typical Installa-
"Operation Testing" on