AIR VALVE
LABEL
CAP
AIR VALVE LABEL
IN POSITION
OVER CAP
PUMP CUT-IN
SETTING
PRESSURE
FROM PUMP
(SIDE VIEW
)
PUMP CUT-IN SETTING
DIFFERENTIAL
ADJUSTING NUT
(TOP VIEW)
GALVANIZED OR
EPOXY LINED
STEEL TANK
TO SYSTEM
WELL-X-TROL
TANK
FROM
PUMP
PRESSURE
SWITCH
RELIEF
VALVE
Installation
1.
Locate Well-X-Trol
®
in final desired location.
2.
Level as necessary.
3.
Connect to pump supply line with same size pipe as from
pump. Eliminate unnecessary friction loss.
4.
All piping should be in accordance with prevailing local codes
and standards.
WX-401(C) through WX-403(C): 1" elbow.
WX-404(C) through WX-407(C): 1 -1/4" elbow.
WX-421 through WX-422: 2" elbow.
WX-423 through WX-427: 3" elbow.
WX-447(C) through WX-452(C): 2" elbow.
WX-453(C) through WX-457(C): 3" elbow.
WX-458C through WX-463C: 4" elbow.
WX-35L(CL) through WX-100L(CL): 1 -1/4" elbow.
WX-130L(CL) through WX-300L(CL): 1 -1/2" elbow.
WX-400L(CL) through WX-600L(CL): 2" elbow.
Adjusting Well-X-Trol Precharge
Models
Factory Precharge
WX-401(C) through WX-407(C) ........30 psig
WX-421 through WX-463C ................25 psig
WX-35L(CL) through WX-600L(CL) ...25 psig
1.
Remove protective air valve cap and check precharge
pressure using a suitable pressure gauge. (Tank should be at
room temperature and empty of water.)
2.
Release or add air as necessary to make precharge pressure
equal to 2 psig below the pressure switch pump cut-in setting
or 10%-20% below system pressure for a surge application.
Note:
Pressure switch setting may be out-of-adjustment, i.e. If
labeled 30/50, it may actually be 28 or 29 to 48 to 49. See Fine
Tuning Procedure for correcting this situation. Do not adjust
Well-X-Trol precharge for this variation.
When the Well-X-Trol is installed in the system, system pressure
must be reduced to exhaust the tank of acceptance water before
precharging. Once this has been done, follow above steps 1-3.
Air Pressure - High Pressure Application
If increasing pre-charge above 55 psig, the following steps must
be followed:
a.
Tank must be connected to the system with isolation valve
open.
b.
System must be pressurized to 25-30 psig, matching the
pre-charge setting of the tank.
c.
Isolation valve then needs to be closed.
d.
The pre-charge pressure of the tank can now be increased
to the recommended high-pressure setting.
e.
Bring system up to pressure and then open the isolation
valve to the tank.
Failure to follow these instruction could result
in damage to the bladder or diaphragm and
void all warranties.
Remember to replace and seal the plug after you’ve reached
the correct air charge (it’s a good way to tell if anyone has been
tampering with the system).
Pressure Switch
For best performance, you should put the pressure switch
at or near the Well-X-Trol where pressure variations will be
dampened. When you fine tune the system, you should adjust
switch controls instead of the Well-X-Trol precharge.
Safety Protection
All installations should be according to prevailing codes and
standards. In addition, you should protect the system by
installing an adequately sized relief valve at or near the pump
discharge. You should also provide facilities to drain the system.
Fine Tuning Procedure:
1.
Fill the system and Well-X-Trol until pump cuts off.
2.
Open one or more fixtures to drain Well-X-Trol.
3
If there is a momentary pause in the water flow from the time
the Well-X-Trol is emptied and the pump starts, adjust pump
switch cut-in setting upward (clockwise) slightly (Figure 1).
(Refer to Adjustment Instructions by switch manufacturer).
4.
Close fixtures and refill Well-X-Trol to pump cut-off. Check
time to fill.
5.
Open fixtures and see if pause in water is eliminated at
pump cut-in. If not, continue adjusting pressure switch.
Figure 1
Replacing Galvanized or Epoxy Lined Tanks
Many times a defective steel tank must be replaced with a Well-X-Trol
to provide Effective System Protection, (ESP). Because the
Well-X-Trol is precharged with air, it will always occupy
less space for equal amounts of pressurized water than a
galvanized or epoxy lined steel tank.
It is required that a relief valve be installed at the
Well-X-Trol connection to ensure system protection (Figure 2).
Also BE SURE to plug the air port on a jet pump, as air is no longer
required to be supplied to the tank.
Figure 2
RECOMMENDED
PIPE SIZE FOR
PUMP FLOWS
PIPE FLOW
SIZE GPM
3
/
4
10
1
16
1
1
/
4
30
1
1
/
2
40
