Amtrol WX-401, WX-401C, WX-403, WX-403C, WX-404 Installation & Operation Instructions
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WELL-X-TROL
®
COMMERCIAL PRE-PRESSURIZED WELL TANKS
INSTALLATION & OPERATION INSTRUCTIONS
Models WX-401(C) through WX-407(C)
Models WX-421 through WX-427
Models WX-447(C) through WX-463C
Models WX-35L(CL) through WX-600-L(CL)
NOTE: Inspect for shipping damage and notify freight carrier or store where purchased immediately if damage is present. To avoid risk of personal
injury and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a licensed professional immediately. Current
copies of the Product manual can be viewed at www.amtrol.com. Use proper safety equipment when installing.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER HAZARDS.
OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL INJURY AS WELL AS
PROPERTY DAMAGE.
READ CAREFULLY THE PRODUCT
INSTALLATION & OPERATION INSTRUCTIONS.
FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE
MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR
PROPERTY DAMAGE, AND WILL VOID THE PRODUCT WARRANTY.
THIS PRODUCT MUST BE INSTALLED BY A LICENSED
PROFESSIONAL. FOLLOW ALL APPLICABLE LOCAL AND STATE
CODES AND REGULATIONS, IN THE ABSENCE OF SUCH CODES,
FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING
CODE AND NATIONAL ELECTRIC CODE, AS APPLICABLE.
EXPLOSION OR RUPTURE HAZARD. THE EXPANSION TANK MUST
BE OPERATED SO THAT THE PRESSURE DOES NOT EXCEED THE
MAXIMUM WORKING PRESSURE.
EXPLOSION HAZARD. Failure to follow the
instructions in the accompanying product manual
can cause a rupture or explosion; possibly causing serious or fatal injury,
leaking or flooding and/or property damage.
Use only with potable water system. Do not
operate in a setting with freezing temperatures or
where the temperature can exceed 200°F and do not exceed the
maximum working pressure specified for this Product in the Manual.
Mount vertically only.
Chlorine & Aggressive Water: The water quality
can significantly influence the life of this Product.
You should test for corrosive elements, acidity, total solids and other
relevant contaminants, including chlorine and treat your water
appropriately to insure satisfactory performance and prevent
premature failure.
explode, causing serious or fatal injury, leaking or flooding and/or
property damage. To minimize risk, a licensed professional must install
and periodically inspect and service the Product. A drip pan connected
to an adequate drain must be installed if leaking or flooding could cause
property damage. Do not locate in an area where leakage of the tank or
connections could cause property damage to the area adjacent to the
appliance or to lower floors of the structure.
excess of local code requirement or maximum working pressure
designated in the Product Manual, whichever is less. Do not expose
Product to freezing temperatures or temperatures in excess of 200° F.
Do not adjust the pre-charge or re-pressure this Product except for any
adjustments required at the time of initial installation, especially if Product
corroded, damaged or with diminished integrity. Adjustments to precharge must be done at ambient temperature only. Failure to properly
size the Product or follow these instructions may result in excessive strain
on the system lead to Product failure, serious or fatal personal injury,
leakage and/or property damage.
cause cancer and birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.
This Product, like most Products under pressure,
may over time corrode. weaken and burst or
EXPLOSION OR RUPTURE HAZARD A relief
valve must be installed to prevent pressure in
This product can expose you to chemicals including
lead, which is known to the State of California to
PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY
IMPORTANT GENERAL SAFETY INFORMATION -
ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.
DANGER! EXPLOSION HAZARD. WHEN THE
CHANGE TO A HIGHER PRE-CHARGE PRESSURE IS NECESSARY
DUE TO A REQUIRED CHANGE IN THE PRESSURE SWITCH SETTING,
FAILURE TO FOLLOW INSTRUCTIONS BELOW CAN CAUSE A
RUPTURE OR EXPLOSION, POSSIBLY CAUSING SERIOUS OR
FATAL PERSONAL INJURY, AND/OR PROPERTY DAMAGE.
•DO NOT ADJUST OR ADD PRESSURE IF THERE HAS BEEN A
LOSS OF AIR.
•DO NOT ADJUST THE PRE-CHARGE PRESSURE IF THERE IS
VISIBLE EXTERIOR CORROSION.
•DONOT ADJUST THE PRE-CHARGE PRESSURE IF THERE HAS
BEEN A REDUCTION OF THE PUMP CYCLE TIME OR THE PRECHARGE PRESSURE COMPARED TO ITS INITIAL SETTING.
THIS IS BECAUSE REDUCTION IN PUMP CYCLE TIME CAN
RESULT FROM LOSS OF TANK AIR PRESSURE WHICH IN
TURN CAN MEAN THERE MAY BE INTERNAL CORROSION AND
ANY RE-PRESSURIZATION OR ADDITIONAL PRESSURE COULD
RESULT IN RUPTURE OR EXPLOSION.
pressure for the Well-X-Trol line. Should pressures exceed 125 psig,
proper selection and sizing of an ASME constructed Well-X-Trol should
be made.
pressures (75 psig or more). This will protect the Well-X-Trol and other
system components should the pressure switch malfunction and fail to
shut the pump off. The relief valve should be installed at the connection
of the Well-X-Trol to the system piping and have a discharge equal to the
pump’s capacity at 75 psig.
YOUR WELL TANK, ESPECIALLY DURING TIMES OF NON-USE.
CONSULT YOUR LOCAL PLUMBING OFFICIAL REGARDING ANY
STEPS YOU MAY WISH TO TAKE TO SAFELY DISINFECT YOUR
HOME’S PLUMBING SYSTEM.
WELL TANK HAS BEEN IN SERVICE AND A
MAXIMUM WORKING PRESSURES. Every Well-X-Trol
is
air tested to 125 psig, the maximum working
RELIEF VALVE REQUIRED. A relief valve should
be installed which is set to open at excessive
AS IN ALL PLUMBING PRODUCTS AND WATER
STORAGE VESSELS, BACTERIA CAN GROW IN
A water test must be taken before installation of any
water treatment equipment.
DANGER! EXPLOSION HAZARD. IF YOU
ADJUST THE PRE-CHARGE PRESSURE OR ADD
PRESSURE TO A TANK THAT IS CORRODED OR DAMAGED OR
WITH DIMINISHED INTEGRITY THE TANK CAN BURST OR EXPLODE,
POSSIBLY CAUSING SERIOUS OR FATAL PERSONAL INJURY AND/
OR PROPERTY DAMAGE.
•ONLY ADJUST THE PRE-CHARGE AS DESCRIBED IN THIS
MANUAL WHEN THE TANK IS NEW OR WHEN THE INTEGRITY OF
THE TANK AND LACK OF INTERNAL OR EXTERNAL CORROSION
IS CONFIRMED.
•ONLYLICENSEDPROFESSIONALSSHOULDCHECK,ADJUSTOR
RE-CHARGE THE PRE-CHARGE OF TANKS.
For your safety, the information in this manual must
be followed to minimize the risk of electric shock,
property damage or personal injury.
•Properlygroundtoconformwithallgoverningcodesandordinances.
Do not install in direct sunlight. Excessive sun heat
may cause distortion or other damage to nonmetallic parts.
Use only lead-free solder and flux for all sweat-solder
connections, as required by state and federal codes.
Maximum allowable inlet water pressure is 125 psig.
If daytime pressure is over 80 psig, nighttime
pressure may exceed the maximum. Use a pressure-reducing valve to
reduce the flow if necessary.
ELECTROCUTION AND EXPLOSION HAZARD.
before work is performed on the tank, turn off the
power to the pump and release all water pressure in the tank and
pumping system.
Pre-Installation
Proper WELL-X-TROL® Location
The surface which supports the Well-X-Trol should be capable
of supporting its operating weight (including the weight of water).
The Well-X-Trol should be installed as close as possible to the
pressure switch. This will reduce the adverse effects of added
friction loss and differences in elevation between Well-X-Trol and/
or water supply main and switch.
1. Adjacent to pump. This is the location chosen most often. The
Well-X-Trol tank can be used whether pumps are above or
below the surface. In either case, it protects the pump by
reducing surge, dampening pressure spikes, offering a point
of pressure control, and providing minimum run time. This
location also permits all equipment to be placed in an area
that’s both serviceable and secure.
2. At the end of long pipe runs. Sometimes it’s better to put the
Well-X-Trol tank at the end of a long run of pipe so
it can provide rapid system response and adequate
protection. When this location is chosen, the
pressure switch should either be relocated with the
Well-X-Trol tank or the setting should be adjusted to
compensate for any line pressure drop.
3. Adjacent to shock creating components. If you want to use the
Well-X-Trol tank to control shock or pressure fluctuations,
then you should locate the tank as close to the cause as
possible. This should be done when and where you have
back flow preventors, check valves, solenoid, mixing and
meter valves, pumps and other system controls which can
contribute to system shock.
Do not use for shock with flow velocities greater
than 10 FPS.
DO NOT LOCATE IN AN AREA WHERE
LEAKAGE OF THE TANK OR CONNECTIONS
COULD CAUSE PROPERTY DAMAGE TO THE AREA ADJACENT TO
THE APPLIANCE OR TO LOWER FLOORS.
System Connection
The connecting pipe between the Well-X-Trol tank and the
system should be as short as possible with a minimum of bends.
It should also be as large in diameter as possible, consistent
with system piping. You should never bush down from the
Well-X-Trol tank (Figure A).
Figure A
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