Pre-Installation Checklist - Amtrol Well-X-Trol WX101 Installation Operation & Maintenance

3. PRE-INSTALLATION CHECKLIST

IMPORTANT STEPS AND DECISIONS REQUIRED BEFORE INSTALLATION
THIS PRODUCT MUST BE INSTALLED AND MAINTAINED
BY A LICENSED PROFESSIONAL. IN ADDITION TO THE
INSTRUCTIONS IN THIS MANUAL, FOLLOW ALL
APPLICABLE LOCAL AND STATE CODES OR IN THE
ABSENCE OF SUCH CODES, THE CURRENT EDITIONS
OF THE NATIONAL PLUMBING CODE AND THE
NATIONAL ELECTRIC CODE.
4. REQUIRED COMPONENTS AND
IN LINE MODELS
WX101, WX102, WX-103, WX104, WX200
1. PRESSURE SWITCH
2. RELIEF VALVE
3. 1 UNION
4. 1 SHUT OFF VALVE
5. VALVE DRAIN
6. PRESSURE GAUGE
7. TANK-TEE (OPTIONAL)
UNDERGROUND MODELS
1. PRESSURE SWITCH
2. RELIEF VALVE
3. 1 UNION
4. 1 SHUT OFF VALVE
5. VALVE DRAIN (OPTIONAL)
6. PRESSURE GAUGE
7. TANK-TEE (OPTIONAL)
MAXIMUM WORKING PRESSURES
Every WELL-X-TROL is air tested to 125
psig, the maximum working pressure for the WELL-X-TROL line.
Should pressures exceed 125 psig, proper selection and sizing
of an A.S.M.E. constructed WELL-X-TROL should be made.
5. HOW YOUR WELL-X-TROL WORKS
OPERATING CHARACTERISTICS
The WELL-X-TROL principle employs a mechanical sealed-in
heavy duty diaphragm to allow an air cushion to be pre-pressurized
before leaving the factory.
Water is contained in a separate molded rigid polypropylene
liner that is supported by the outside steel shell and covered by
a diaphragm. This provides a completely non-corrosive water
reservoir, eliminating any contact of system water with ferrous
metal. The WELL-X-TROL is shipped with its total volume filled
with air pressured to a standard precharge. As water enters the
WELL-X-TROL, the diaphragm is flexed, compressing the air
cushion, reducing its volume by the same volume of water that
enters. As the volume of air decreases, the pressure in the
WELL-X-TROL increases, so that it always equals the pressure
exerted by the water. Since air pressure and water pressure are
always equal, the diaphragm is never under any strain. It merely
flexes or floats between the water and air. When properly sized,
the air cushion in the WELL-X-TROL will be of sufficient volume
ACCESSORIES CHECKLIST
DRIP PAN AND DRAIN: To avoid leaking and/or property
damage, install with a drip pan connected to an adequate
working drain kept clear at all times.
PUMP STAND MODELS
WX103PS, WX200PS, WX202 SPACESAVER
1. PRESSURE SWITCH
2. RELIEF VALVE
3. 1 UNION
4. 1 SHUT OFF VALVE
5. VALVE DRAIN
6. PRESSURE GAUGE
7. TANK-TEE (OPTIONAL)
8. PUMP STAND (WX202 SPACE SAVER) OPTIONAL
VERTICAL STAND MODELS
1. PRESSURE SWITCH
2. RELIEF VALVE
3. 1 UNION
4. 1 SHUT OFF VALVE
5. VALVE DRAIN
6. PRESSURE GAUGE
7. TANK-TEE (OPTIONAL)
RELIEF VALVE REQUIRED
A relief valve should be installed which is
set to open at excessive 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.
at minimum pressure (pump cut-in) to allow a desired volume of
water to enter the WELL-X-TROL with the subsequent pressure
increase within the specified operating pressure range as set by
the pressure switch.
NOTE: This is an example. Not all precharge pressure is 28 psi.
Not all system pressures shut pump off at 50 psi
28 PSIG
50
28
A
A. Factory installed precharged air cushion. Pump off.
B. When pump starts, water enters the reservoir. At 50 psig,
system is filled. Pump shuts off.
C. When water is demanded, pressure in the air chamber forces
water into the system. Pump stays off.
-4-
50 PSIG
45 PSIG
45
B C