SHUR-DRI SDPT20 Manual De Instalación página 4

Installation
For jet pump installation, remove AVC tube from port in
pump body or jet body and plug port (see Figure 3). New
pumps come with plug installed.
Figure 3: Plug AVC Port when installing pre-charged tank on
existing pumps. New pumps come with plug Installed.
NOTICE: When working on submersible pumps in wells
be sure safety rope is solidly connected to pump and to
secure anchor at the well head at all times. Do not drop
the pump down the well!
Pitless
adaptor
Check valve
Bleeder orifice
& tee
Pipe coupling
Tape cable
to pipe
Pump
Figure 4
For parts or assistance, call SHUR-DRI Customer Service at
148 0893
Ventilated
well cap
Submersible
cable
2 ft.
(.6m)
158 0893
NOTICE: For submersible pump installations, there may
be bleeder orifices in the vertical discharge pipe. When
the bleeder orifices are functioning correctly, they add air
to the water in the system. They must be removed and
the tees plugged when a pre-charged tank is installed in
the system. To do this, raise the pump and discharge pip-
ing enough to bring the bleeder orifices clear of the well.
Remove the bleeder orifices from tees and replace with
plugs (see Figure 4). Bleeder orifices may be any of sev-
eral sizes. Have a pair each of 1/2", 3/4", and 1" plugs
available. Replace pump and reconnect the discharge
pipe.
NOTICE: To be sure joint is not cross-threaded and
threads are clean, make connections by hand (without
sealer) first. When threads are clean, remove pipe, add
Teflon tape or Plasto-Joint Stik, and remake connection.
Tighten by hand first; finish with pipe wrench.
In areas where temperature is high for long periods of
time, tank pre-charge pressure may increase. This may
reduce tank drawdown (amount of water available per
cycle). If this occurs, adjust pre-charge pressure accord-
ing to Chart 1, page 3.
Flush all air out of piping system and water reservoir por-
tion of pre-charged tank. Required on: new installations,
pumps requiring repriming, and pumps disassembled for
service. Do as follows:
Step 1. Open faucets furthest from tank and run pump.
Step 2. Run pump until sputtering stops and steady
stream of water flows.
Step 3. Open and close faucets repeatedly until all air
has been removed.
Step 4. If stream does not become steady, air may be
leaking into system; check for leaks in piping on
suction side of pump.
NOTICE: To prevent waterlogging, check tank air charge
annually.
TO CHECK TANK AIR CHARGE
If drawdown decreases significantly, check as follows:
Step 1. To check air charge in tank, shut off electric
power to pump, open faucet near tank, and
drain completely.
Step 2. At air valve, check tank air pressure with tire
gauge. See Chart 1, page 3, for correct pressure
setting. If needed, adjust tank pressure up or
down.
Step 3. Use soap or liquid detergent to check for air
leaks around air valve. Continuous bubbling
indicates leak. If necessary, release air pressure
and install new core in air valve, (same as used
for automobile tubeless tires.)
1-800-535-4950
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