Xylem IM251R01 User Manual [en, es, fr]
• Safety Instructions
IM251R01
• Installation
• Operation
• Maintenance
• Warranty
Owner’s Manual
WATER SYSTEM TANK
SAFETY Label Part No. 205817
must be installed. If missing or
destroyed it must be replaced.
Certified to NSF/ANSI 61G
French version begins on page 9.
La version française commence à la page 9.
Thank you for purchasing our product. All Technical and Warranty
Spanish version begins on page 17.
Para la versión en español vaya a la página 17.
PRODUCT DESCRIPTION: Water System Tanks are a precharged diaphragm type vessel which have been manufactured to meet the requirements
of ANSI/NSF Standard-61 (for potable water). This product is specifically designed for ambient temperature water applications “only” where constant
system pressure is desired to minimize pump cycle (preventing frequent stops and starts). It is highly recommended that you enlist the aid of a qualified
service professional to properly size, install, and regularly maintain your Water System Tank to ensure years of safe and troubl
questions should be directed to your local dealer or you may write
us at the address provided on “page 7” of this manual.
e free service.
INSTALLER: PLEASE LEAVE THIS MANUAL FOR OWNER’S USE.
www.completewatersystems.com
For parts, product & service information visit 325116-000
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SAFETY GUIDELINES
Your safety and the safety of others is extremely important in the installation, use and servicing of this product. Many safetyrelated messages and instructions have been provided in this manual and on your own water tank to warn of potential hazards.
CAREFULLY READ AND OBEY ALL SAFETY MESSAGES AND INSTRUCTIONS BEFORE ATTEMPTING TO ASSEMBLE,
INSTALL, OPERATE, OR MAINTAIN THIS PRODUCT. To help recognize this information please observe the following symbols.
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message
and how to avoid the risk of injury.
IMPORTANT DEFINITION:
NSF (National Sanitation Foundation) - NSF International is The Public Health and Safety Company™, providing public health and
safety risk management solutions to companies, governments and consumers around the world.
SAFETY WARNINGS AND INSTRUCTIONS
WARNING
Electrical Shock Hazard
Risk of death, serious injur y, property
damage. Disconnect power and bleed
off water pressure before servicing
this product.
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TABLE OF CONTENTS
SAFETY GUIDELINES .............................................................. 2
Important Denition ............................................................ 2
SAFETY WARNINGS AND INSTRUCTIONS ............................ 2
FEATURES AND OPERATING CYCLES .................................. 3
The Water Systems Tank Concept ............................................ 3
INSTALLATION PROCEDURES ............................................... 4
Typical Submersible Pump Installation ...................................... 4
Typical Jet Pump Installation .............................................. 4
FEATURES AND OPERATING CYCLES
The Water Systems Tank Concept
The water system tank does more than simply store water. It
helps to protect the system components. A properly sized tank
will provide adequate ow even when the pump is not running. It
saves energy by reducing the number of pump starts. In addition,
the water system tank provides 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 internal corrosion.
MULTIPLE TANK INSTALLATION PROCEDURE ..................... 4
OPERATION .............................................................................. 5
TROUBLE SHOOTING ............................................................. 5
Air Charge in Tank and Pressure Switch Setting ................ 5
Tank Decommision and Disoposal ..................................... 6
NOTES ...................................................................................... 6
WARRANTY .............................................................................. 7
1. Prior to shipping, the tank
is pressurized to a standard
precharge as defined in
the “OPERATION” part of
this manual.
2. A s water enters the
ta nk, the air above th e
diaphragm is compressed
and its volume is reduced
by the volume of water
that enters.
3. The pressure in the tank
rises. Water continues to
enter until the pump cut-out
pressure is reached. The
pump shuts off and the tank
is now lled.
AIR WATER
3
4. The pressure in the air
chamber forces water into
the system when a demand
occurs without causing the
pump to operate immediately.
Pressure in the chamber
finally drops to the pump
cut-in pressure, the pump
switch activates the pump and
repeats the lling cycle.
INSTALLATION PROCEDURES
Typical Submersible Pump Installation
FIGURE 1.
1. When replacing an existing water tank, drain-off water and
bleed-off air completely from tank before discarding.
2. Set and position new tank on a rm, level surface with adequate
drainage. Typical installation shown in gures 1 & 2.
3. For best results use new piping; i.e.: Iron, copper, or rigid PVC.
Typical Jet Pump Installation
FIGURE 2.
4. If your system is capable of exceeding a working pressure of
125/100 psig (typically submersible pumps), install a pressure
relief valve (rated at 125/100 psig or less, but greater than
turn off pressure) in the system no more than 10 feet from the
tank. The valve should be the same pipe size as the tank outlet.
This is not necessary on tank-mounted jet pump units.
MULTIPLE TANK INSTALLATION PROCEDURE
Water system tanks can be connected together to increase supply
of usable water (drawdown). Two tanks of same size will double
the supply and three tanks will triple the supply. When using a high
capacity pump, the manifold and pressure switch assembly must
be installed in the pipe line as close to center of tanks as possible.
Manifold and main should be 2 times the size of feederline.
5. Connect tank to the pump discharge line using the same
size pipe as the pump tap, or larger.
6. The tank should be flushed 5 times prior to household
use, see Operation section.
4
OPERATION
BEFORE PUMPING WATER INTO YOUR SYSTEM:
1. Verify your tanks standing air pressure:
• record here: PSIG (as received new)
2. Determine the pumps cut-in pressure setting:
• record here: PSIG (switch)
3. Adjust tanks pre-charge air pressure:
• 2-3 PSIG (below) cut-in pressure setting of pump.
• record here: PSIG (active tank).
4. Release air or add air to the tank to make the pressure in the
tank 2-3 psig LESS than the pump cut-in pressure setting.
5. 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.
6. It may be necessary to make nal 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 follow these steps:
a. Fill the system until the pump shuts off.
b. Open a faucet and drain water system tank until
c. If there is a pause in water ow from time water system tank is
emptied and pump starts up again, decrease air pressure in tank
until it is 2 to 3 psig below cut-in pressure setting. See Trouble
Shooting section 3(a-b) for procedure.
d. Close the faucets and rell the watersystem tank. Repeat
steps (b) and (c) if necessary until there is no longer a
pause in water ow.
pump starts.
TROUBLE 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 ow (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 tting
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. The tank drawndown is governed by the air pressure in the tank
and the cut-in and cut-out pressure settings on the pressure
switch. If you have concerns about the drawndown, you should
check those settings as follows:
a. Air charge in Tank. Turn off electric power to the pump.
Open a nearby faucet 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
not approximately 2-3 psi below the pump cut-in setting,
tank pressure must be adjusted by a qualified professional.
Replace the valve stem cap. For suspected air leakage
soapy water can be used to check the air valve and tank
seams for leaks. If a tank leak appears replacement by a
qualified professional is required.
b. Pressure Switch Setting. Start the pump allowing system
pressure to build until cut-off setting is reached (note gauge
pressure once pump stops). Then open faucet draining tank
down until cut-in setting is reached (note gauge pressure
once pump starts). The proper pressure differential would
be 20 psi (not exceeding 25 psi). If your system pressure
is not maintaining a proper differential you should contact
a qualified professional for service.
5
TANK DECOMMISSION AND DISPOSAL
Your water system tank has a limited life expectancy and will undoubtedly
need to be replaced at some point. When decommissioning your old
pressurized tank it is necessary to follow these important procedures
to ensure safe disposal:
NOTES
6
LIMITED WARRANTY
Xylem Inc , the warrantor, extends the following LIMITED WARRANTY to the owner of this water system tank.
1. TANK
If within five years after in stal lation the tank or, a pa r t thereof shall prove upon examination by the warrantor
to be defective in material or workmanship, the warrantor, at his option, shall exchange or repair such part or portion. The warranty on
the replacement tank will be limited to the unexpired term of the original warranty.
2. CONDITIONS AND EXPECTATIONS
This warranty shall apply only when the tank is installed in accordance with local plumbing and building codes, ordinances, regulations,
and good industry practices, and only when the tank is installed, operated and maintained in accordance with this manual and Seller’s
instructions. In addition, a high pressure electrical cut-off switch and/or a pressure relief valve must be installed when the tank is installed
on an ambient temperature water system whose maximum working pressure has the ability to exceed 100 pounds per square inch gauge (psig).
a. This warranty shall apply only when the water system is used:
(1) on ambient temperature water systems at pressures not exceeding the working pressure for the water system;
(2) in the United States, its territories or possessions, and Canada,
b. The following shall void this warranty: any accident, any misuse, physical damage, abuse (including freezing) to the water
system tank; any alteration of the tank; any operation of the tank in a modified form; any repair of the tank other than by
Seller or without Seller’s written approval; any damage from ordinary wear and tear, corrosion, or chemical attack; and
any damage due to a defective power supply or improper electrical protection,
c. Seller’s obligations to repair and/or replace hereunder are conditioned upon written notice of any alleged defect within
then (10) calendar days of its discovery.
3. SERVICE AND REPAIR EXPENSE
Under this limited warranty the warrantor will provide only a replacement tank or part thereof. The owner is responsible for all
other costs. Such costs may include but are not limited to:
a. Labor charges for service, removal, repai
b. Shipping and delivery charges for forwarding the new tank or replacement part from the nearest distributor and returning
the claimed defective tank or part to such distributor except in the state of California where such charges are the
manufacturer’s responsibility.
4. LIMITATION ON IMPLIED WARRANTIES
Implied warranties, including any warranty of merchantability imposed on the sale of this tank under state law are limited to five (5) year
duration for the tank or any of its parts. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation
may not apply to you.
5. CLAIM PROCEDURES
Any claim under this warranty should be initiated with the dealer who sold the tank, or with any other dealer handling the warrantor’s
products. If this is not practicable, the owner should contact:
U.S. Customers Canadian Customers
Xylem Inc. Xylem Inc.
2881 East Bayard St. 55 Royal Road
Seneca Falls, NY 13148 Guelph, ON N1H1T1
a. The warrantor will only honor replacement with identical or similar tank or parts thereof which are manufactured or
distributed by the warrantor,
b. Dealer replacements are made subject to in-warranty validation by warrantor,
6. LIMITATIONS/DISCLAIMERS
NO OTHER EXPRESS WARRANTY HAS BEEN OR WILL BE MADE ON BEHALF OF THE WARRANTOR WITH RESPECT TO THE
TANK OR THE INSTALLATION, OPERATION, REPAIR OR REPLACEMENT OF THE TANK.
IN NO EVENT IS SELLER LIABLE FOR ANY OTHER FORM OF DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED,
INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES, INCLUDING BU T NOT LIMITED TO
LOSS OF USE OF THE UNIT, INCONVENIENCE, LOSS OR DAMAGE TO PERSONAL PROPERTY, LOSS OF PROFIT,
LOSS OF PRODUCTION, LOSS OF ANTICIPATED SAVINGS OR REVENUE, OR LOSS OF OPPORTUNITY.
THE WARRANTOR SHALL NOT BE LIABLE BY VIRTUE OF THIS WARRANTY OR OTHERWISE FOR DAMAGE
TO ANY PERSONS OR PROPERTY, WHETHER DIRECT OR IND
a. Some states do not allow the exclusion or limitation of the incidental or consequential damages, so the above limitation or
exclusion may not apply to you.
b. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state,
c. The terms of this agreement and all rights and obligations hereunder shall be governed by the laws of the jurisdiction of
seller’s office to which this order has been submitted.
Fill in the following for your own reference. Keep it. Registration is not a condition of warranty. The model and serial number are found on
the water system tank.
r, or reinstallation of the water system or any component part,
IRECT, AND WHETHER ARISING IN CONTRACT OR IN TORT.
Model No.________Serial No._____________________________Date Installed________ Dealer’s Name_______________________
__________________________________ Dealer’s Address________________________’._______________Phone No.___________
City & State (Provincial)______________________________________Zip (Postal Code)_______
KEEP THIS WARRANTY POSTED ADJACENT TO THE TANK FOR FUTURE REFERENCE.
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IM251R01
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