Pentair MYERS HJ Serie Manual Del Usuario página 5

Installation
Shallow Well Installation
Refer to Figure 1 for typical Shallow Well installations.
1. Connect foot valve to 1-1/4" plastic pipe adapter.
Cement adapter to 1-1/4" rigid PVC pipe. All
connections must be air- and water-tight for pump to
operate correctly.
2. Add rigid PVC pipe sections and couplings (as
required) while lowering foot valve into well. As
much as 30 feet of pipe could be required.
NOTICE Removing foot valve screen will
void warranty.
3. Install well seal over rigid PVC pipe and into well
casing. Cement 1-1/4" PVC elbow to top of pipe at
correct length to position foot valve 5 feet above
bottom of well. Lower foot valve/piping assembly
carefully into well, using pipe clamp. Draw up bolts
on well seal until rubber gaskets are tight against
both the well casing and the pipe.
4. For shallow well pumps – Cement one end of
horizontal 1-1/4" pipe into elbow. Add sections to
reach the pump. This pipe should slope up to the
pump from the elbow. Thread 1-1/4" adapter into
pump. Cement horizontal pipe into adapter that has
been threaded into pump.
4A. For convertible pumps – Install plastic nozzle and
venturi into ejector housing. Secure shallow well
ejector assembly and gasket to pump case with
bolts supplied.
5. Connect pressure tube between pump case and
pressure switch on pump.
6. Thread 1-1/4" PVC adapter into shallow well ejector.
Cement horizontal pipe into adapter threaded
into ejector.
7. Using pipe wrench, install discharge tee in pump
discharge until tight.
8. Go to Electrical section and make electrical
connections as described.
9. After electrical work is completed and before pump
is connected to pressure tank, the pump should be
primed and test run. To prime, remove bushing from
top of discharge tee. Fill piping and pump with water
until the water overflows from top of tee. Replace
bushing and tighten to seal. Install pressure gauge
(purchase separately). Before starting pump, place
large bucket or other container under check valve
opening.
10. Start motor. If pump is installed with a horizontal
offset line of 4 feet or more, it may take several
minutes to prime. If pump does not prime in
5 minutes: (1) stop motor; (2) remove discharge plug
and pressure gauge; and (3) add more water.
11. Allow pump to empty into container long enough to
clear the well of any sand or dirt and to be sure the
well is not going to run out of water.
12. Stop pump and complete connections to pressure
tank, as described in Tank Connection. Allow
pump to cycle automatically several times to check
pressure switch setting and operation. Make sure
the pressure switch is set low enough to shut off the
pump. If a valve is shut off and the pressure switch
setting is too high, the pump will run continuously
without water flow. This will overheat and damage
the pump.
NOTICE If pump is being used as a lawn sprinkler or
irrigation pump, you MUST remove the pressure switch
and wire the pump direct. Also, no pressure tank is used.
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