Publicidad
Idiomas disponibles
Idiomas disponibles
INTRODUCTION
MAJOR COMPONENTS AND WHAT THEY DO
TANK AN AIR VOLUME CONTROL
The tank serves two functions: (1) it provides a reservoir of water
– some of which can be drawn through the house fixture before
the pump must start; (2) it maintains a cushion of air under
pressure.
When a Pre-charged Bladder Tank is used, no air volume control
is needed. This tank contains an isolated pre-charge of air.
When a non-bladder type tank is used, an air volume control
adds air to the tank as needed. The air volume control is hooked
to the side of the tank and a pressure tube is connected from the
air volume control to the suction side of the pump.
PRESSURE SWITCH
A pressure switch is provided for automatic operation. The
pump starts when the system pressure drops to the cut-in
pressure and stops when system pressure reaches the cut-out
pressure.
IMPELLER, JET AND PRESSURE REGULATOR
The pump impeller rotates with the motor shaft, causing an
increase in pressure. The rotation of the impeller creates a
vacuum, allowing water to be drawn into the pump. Part of the
water us diverted back to the jet, where it again passes through
the nozzle and venturi, creating additional vacuum to draw in
more water and deliver it at high pressure to the impeller.
In a deep well installation, the jet assembly is submerged in the
well because the vertical distance to the water level exceeds
the suction lift of the pump. Adjustment of the regulator causes
the correct amount of water to be diverted back to the jet for the
most efficient operation.
The regulator may be used to restrict the flow of water in a
shallow well system if the convertible pump. Has the capacity to
draw more water than the well can produce.
In a shallow well installation, the jet assembly is attached
directly to the pump because a vacuum will lift water to the
pump
4
WELL WATER LEVEL
Shallow well water systems are recommended for use in wells
where the sum of: (1) the vertical measurement from the pump
to the water level in the well; (2) the well water drawdown; and (3)
the suction pipe friction in feel equals 25 feet or less.
LOCATION
The unit may be installed in any convenient location to the well
that provides sufficient space for installation and servicing the
well. A dry basement, pit or utility room is an excellent choice
when allowed by law. Check with state and local agencies to
determine restrictions in your area.
WELLS
A new well should be sand-pumped until clear before
installation. Sand will damage pump parts and the seal. The
drawdown level of the well should not exceed the maximum
rated depth for the pump or the capacity will be reduced and
may cause loss of prime.
NOTE: Chlorinating the well may be required before installing
a new pump. Check with local health department for
recommendations.
PIPE
Plastic pipe is shown in the illustrations. Galvanized iron pipe
can be used if desired.
The piping must be clean and free of all foreign matter to.
Prevent clogging of the jet.
If the unit is installed offset from the well to the pump.
Unions should be provided where necessary.
Provide a drain cock at a low point in the service line to drain
the pressure tank.
Be sure all suction connections are airtight. The primary cause
of problems in a new installation is air leaks in one or more joints
in the suction line.
SEALING PIPE JOINTS
Use only PTFE pipe thread sealant tape of PTFE-based joint
compounds for making all threaded connections to the pump
itself.
Do not use pipe joint compounds on plastic pumps: they can
react with the plastic in pump components. Make sure that all
pipe joints in the suction pipe are airtight as well as water tight.
If the suction pipe can suck air, the pump will not be able to pull
water from the well.
P15004 (12-15-22)
Publicidad
