Xylem RJ User Manual [en, es, fr]

Read and Follow
Safety Instructions!

DANGER

WARNING

CAUTION

This is the safety-alert symbol. When you see this symbol on your system or in this
manual, look for one of the following signal words and be alert to the potential for
personal injury;

DANGER warns about hazards that will cause serious personal injury, death or
major property damage if ignored.

WARNING warns about hazards that could cause serious personal injury, death or
major property damage if ignored.

CAUTION warns about hazards that may result in minor or moderate injury or
property damage if ignored.

This label NOTICE indicates special instructions which are important but not related
to hazards.

Carefully read and follow all safety instructions in this manual or on system.

Keep safety labels in good condition.
Replace missing or damaged safety labels.

Safety Instructions

1. WARNING - THESE WATER TANKS ARE DESIGNED FOR

2. It is your responsibility to make sure your installation meets all national and

3.

4. If a captive air water systems tank replaces a standard galvanized tank on a

5.

OPERATION ON AMBIENT TEMPERATURE WATER SYSTEMS LIMITED
TO A MAXIMUM WORKING PRESSURE OF 125 POUNDS PER SQUARE INCH
GAUGE (PSIG). IF YOUR SYSTEM HAS THE ABILITY TO EXCEED 125 PSIG
WORKING PRESSURE (100 PSIG IF THIS IS A PUMP MOUNTED UNIT), A
SUITABLE SAFETY DEVICE MUST BE INSTALLED. THIS CAN BE EITHER A
HIGH PRESSURE ELECTRICAL CUT-OFF SWITCH AND/OR A PRESSURE
RELIEF VALVE. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN CAUSE
TANK RUPTURE AND RESULT IN PERSONAL INJURY AND/OR PROPERTY
DAMAGE.

local plumbing and electrical codes.

DANGER - Before installing or servicing your pump or tank be sure power

source is disconnected.

submersible pump installation, bleeder orifices or other air charging devices
must be removed. Air charging devices on jet pumps must be removed.

CAUTION - Storage tanks are designed for use on ambient temperature

- (maximum temperature of 120
this product on other applications could cause tank failure and possibly
personal injury. Use of this tank on other applications voids the warranty.

o

F, effective Feb. 2001) water systems. Use of

6. Complete pump, tank and piping system must be protected against freezing.
Failure to do so will cause severe damage and voids the warranty.

7.

DANGER - Tank contains air pressure. Do not puncture. Never throw tank

into fire or incinerator.

2

The water systems

40

45

tank

concept

Here’s how the
tank works for a

The water system tank does more than simply
store water. It helps to protect the system
components. A properly sized tank will provide
adequate flow even when the pump is not
running. It saves energy by reducing the
number of pump starts. Another benefit is
increased system component life due to fewer
pump cycles.

The water system tank consists of a steel tank
(A) containing a sealed-in-place heavy duty
diaphragm (B) which separates air from the
water. The portion of the tank where water is
stored (C) is lined to isolate water from the
metal tank. This protects the tank from
corrosion.

water system
designed to
operate at a
30/50 psig
pressure
switch
setting.

30

Prior to shipping, the tank

1.

is pressurized to a standard
precharge as defined in
“OPERATION” part of this
manual.

50

As water enters the tank, the

2.

air above the diaphragm is
compressed and its volume
is reduced by the volume of
water that enters.

The pressure in the tank

3.

rises. Water continues to
enter until the pump cut-out
pressure is reached. The
pump shuts off and the tank
is now filled.

AIR WATER

The pressure in the air chamber

4.

forces water into the system
when a demand is made
without causing the pump to
operate immediately. When
the pressure in the chamber
finally drops to the pump cut­in pressure, the pump switch
activates the pump and

3

repeats the filling cycle.

Installation Procedures

TYPICAL SUBMERSIBLE

PUMP INSTALLATION

1. The water system tank should be installed as close
as possible to the pressure switch (24 inches or less)
to reduce the adverse effect of friction loss and
elevation differences.

2. Disconnect electric power.

3. Drain system and remove old tank. On new system
installation this step is unnecessary.

4. Locate the water system tank on a firm, level surface
with adequate drainage. Typical installations are
shown in the following section.

TYPICAL JET

PUMP INSTALLATION

5. If your system is capable of exceeding a working
pressure of 125 psig (typically submersible pumps),
install a pressure relief valve (rated at 125 psig or
less, but greater than turn-off pressure) in the system
near the tank. The valve should be the same pipe
size as the tank outlet.This is not necessary on tank­mounted jet pump units.

6. Connect tank to the pump discharge line using the
same size pipe as the pump tap, or larger.
WARNING: Hold 90° tank street elbow with wrench
when threading and tightening connecting pipe.

7. The tank should be flushed 5 times prior

to household use. (See operation section)

Multiple
Tank
Installation
Procedure

Water system tanks can be connected
together to increase the supply of usable
water (drawdown). Two tanks of the same
size will double the supply and three tanks
will triple the supply. When using a high

4

capacity pump, the manifold and pressure switch
assembly must be installed in the pipe line as close
to the center of the tanks as possible. Manifold and
main should be 2 times the size of the feederline.

Underground
Pressure
Tanks

Operation

Buried model water system tanks are
designed for direct burial and can be
installed in the horizontal or vertical position.
To eliminate the danger of freezing, tank
must be buried below frost line.

The following steps should be taken when
installing the water system tank.

1. Make sure that tank will be buried below
frost line and above water table.

WARNING

2. Use galvanized or plastic pipe
for section of pipe buried in the ground.

3. Check tank precharge. Tank precharge
must be adjusted to the pressure required
by the pressure switch setting (see section
on Operation).

4. Install tank on firm rock-free earth.

5. The water line from the pump to the
tank and from the tank to the pressure
switch location should be the same size.

6. Check system for performance
and inspect for leaks.

7. Backfill hole with sand or rock-free dirt.
Firmly tamp fill to prevent settling.

8. Make note of tank location so that it
can be easily located at a later time.

THESE WATER TANKS ARE DESIGNED FOR OPERATION ON AMBIENT TEMPERATURE WATER SYSTEMS
LIMITED TO A MAXIMUM WORKING PRESSURE OF 125 POUNDS PER SQUARE INCH GAUGE (PSIG). IF YOUR
SYSTEM HAS THE ABILITY TO EXCEED 125 PSIG WORKING PRESSURE (100 PSIG IF THIS IS A PUMP MOUNTED
UNIT), A SUITABLE SAFETY DEVICE MUST BE INSTALLED. THIS CAN BE EITHER A HIGH PRESSURE ELECTRICAL
CUT-OFF SWITCH AND/OR A PRESSURE RELIEF VALVE. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN
CAUSE TANK RUPTURE AND RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE.

Before you operate the system you must check your water system tank and system to ensure proper operation.
All water system tanks are precharged at the factory. All 8 and 11 inch diameter tanks are precharged at 18 psig. The 15

inch diameter tanks are precharged at 28 psig while the 22 and 26 inch diameter tanks are precharged to 38 psig. The
final precharge pressure should always be 2 to 3 psig below the cut-in (pump turns on) pressure of the pressure switch.
Release air or add air as required using the following procedure.

1. Determine the pump cut-in pressure setting. The pressure switch should have this information located on/in the
cover.

2. With no water in the tank, measure the precharge of the water system tank using an accurate pressure gauge at the
air valve (similar to an auto tire gauge).

LESS

3. Release air or add air to the tank to make the pressure in the tank 2 to 3 psig
setting.

4. It will be necessary to expel air from the piping system on new installations. To do this open all faucets and turn on the
pump. Observe that a mixture of water and air will sputter from the faucet. Run the system until a steady flow of
water exists. Open and close the faucets several times to assure that all air has been removed. If streams do not
become steady, an air leak may exist. Check for leaks on suction side piping.

5. It may be necessary to make final adjustments on the system pressure switch setting because at times the actual
pressure switch setting will vary from what is stated on the cover. Such variation, though not harmful, could cause a
momentary lag of water delivery. To make this adjustment the following steps should be followed:

a. Fill the system until the pump shuts off.
b. Open a faucet and drain the water system tank until the pump starts.
c. If there is a pause in the water flow from the time the water system tank is emptied and the pump starts up

again, decrease the air pressure in the tank until it is 2 to 3 psig below the cut-in pressure setting. (See
Trouble Shooting section 3(a-b) for procedure)

d. Close the faucets and refill the water system tank. Repeat steps (b) and (c) if necessary until there no

longer is a pause in water flow.

5

than the pump cut-in pressure

Trouble

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RETEMAIDTHGIEHGISP04/02GISP05/03GISP06/04

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P6ET 8 61/51117.06.05.02.1MTPN"4/3

P51ET 1161/51317.14.12.17.2MTPN"4/3
P52ET 1161/1321.36.22.25.4MTPN"4/3
P54ET 8/35161/1121.53.47.34.8MTPN"1

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548/35161/51421.53.47.34.8FTPN"1
068/3518/3233.71.63.51.21FTPN"1
088/35161/9939.87.77.69.31FTPN"1

0018/3514/1748.119.96.88.31FTPN"1
0412261/9635.619.311.213.72FTPN"4/11
002228/5849.320.024.713.93FTPN"4/11

05262649.039.525.228.05FTPN"4/11
0622261/11062.132.628.227.44FTPN"4/11
0536261/3169.249.535.135.07FTPN"4/11

SLEDOMDEIRUB

B548/35161/1121.53.47.34.8MTPN"1
B068/3512/1823.71.63.51.21MTPN"1

B0412261/3235.619.311.213.72MTPN"4/11
B002224/1449.320.024.713.93MTPN"4/11

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Shooting

IF YOU THINK YOU HAVE A PROBLEM WITH YOUR WATER SYSTEM TANK, YOU SHOULD MAKE THE FOLLOWING
TESTS AND OBSERVATIONS BEFORE YOU CALL YOUR PROFESSIONAL DEALER.

1. Observe water system operation and note any unusual occurrence such as water spurting from a faucet rather than a
steady flow (indicates air in the system) or short cycling of the pump (rapid starts and stops).

2. In the event that evidence of a small leak near the water fitting appears, check at elbow. The introduction of cold
water to a warm tank may form condensation especially in warmer climates. It is important to provide adequate
drainage.

3. Measure the water drawdown by collecting water in a sufficiently sized container from the time the pump is off (cut-off
point) to the time it turns on (cut-in point). Compare the gallons with that shown in the table below for your model of
tank. If the volume is close to that shown in the table, your system is operating properly.

a. Air charge in Tank. Turn off electric power to the pump. Open faucet nearby and drain the tank completely.

Check the pressure in the water system tank using a standard, high quality tire gauge. If the air pressure in
the tank is below the pump cut-in setting by more than 3 psi, add air to the tank to make it 2 psi less than the
cut-in setting. Replace the valve stem cap. Check around the air stem using a soapy solution to check for
leaks around welds and seams on the remainder of the tank. If a leak appears on the tank itself then
replacement of the tank will be necessary.

b. Pressure Switch Setting. Start the pump and allow the system pressure to shut off pump. Note both the

cut-in and cut-off pressure values on gauge. The difference should not exceed 25 psi. Adjust the pressure
switch if necessary after shutting off the electric power to show a difference of 20 psi. Instructions from the
pressure switch manufacturer will explain how to do this. Test the system after adjusting the limits. If the
pressure switch can’t maintain the proper differential then it may need replacement, not the tank

.

Tank
Specifications

6