Xylem IM125 R02 RJA & RJDS Quick Set - Manual (Page 6)

6
INSTALLATION TIP
The pressure switch supplied with ½ HP Jet Pumps is preset
to 20-40 PSI (pump turns on when system pressure drops
to 20 PSI - pump turns off when system pressure reaches 40
PSI). ¾ HP and 1 HP Jet Pumps are preset at 30 - 50 PSI.
If adjustments are necessary to fit your system needs,
follow the adjustment instructions on the inside cover of the
pressure switch. If you are using a precharged pressure tank
with your system, be sure that the empty tank pressure is
2 PSI lower than the cut in pressure setting of your pressure
switch. (See Section 7 - page 10)
Section 3
Deep Well Installations -
Introduction
In order to install the Red Jacket Convertible
Jet Pump in a deep well system, a Red Jacket
deep well conversion kit must be purchased. The kit
contains a deep-well plug, pressure gauge and a manual
regulator. Kit Order No. is 1441315
Section 4
Installing a New Deep Well
If you are replacing an existing deep well pump, refer to
Section 5.
Red Jacket convertible jet pumps can be adapted to the fol-
lowing deep well systems: 1) horizontally to a 3" or 4" double
pipe well seal (Figure 5); 2) horizontally to a vertical 2" well
adapter (Figure 6).
INITIAL PIPING IN A DEEP WELL
Step 1. On a deep well system similar to Figure 5, a foot
valve should be attached to a tail pipe ( a 5' to 10' length of
pipe attached to the bottom of the injector). The suction pipe
is larger than the drive pipe and should be the same size
at the tapped opening in the jet pump (1¼"). On deep well
systems similar to Figure 6, a 2" single pipe injector is used.
In this installation the well casing serves as the drive pipe.
FIGURE 4
FIGURE 5 FIGURE 6
Step 2. Before installation, single pipe injectors, packers,
should be soaked in water for at least two hours so the leath-
ers seat properly. Special turned couplings, order no. 64655,
are required for 2" injectors.
NOTE: AS the horizontal distance and the pipe size increase, the length of time to prime increases.
PRIMING PLUG
POUR WATER
INTO PUMP
CASE
SUCTION
PIPE
SERVICE
LINE
PRESSURE SWITCH
DRIVE PIPE
DRIVE PIPE
SUCTION
PIPE SUCTION
PIPE
CHECK
VALVE
WELL SEAL
SUCTION PIPE
WELL CASING
FOOT VALVE
TABLE C — PIPE SIZES FOR HORIZONTAL RUNS
TAIL PIPE (5' TO 10')
2" SINGLE PIPE
EJECTOR
PACKER ASSEMBLY
2" WELL
ADAPTER FLANGE
FOOT VALVE
SUCTION PIPE
WELL CASING
3" OR 4"
EJECTOR
TAIL PIPE (5")
DRIVE PIPE
NOTICE