Franklin Electric INLINE CONSTANT PRESSURE SYSTEM El Manual Del Propietario página 8

PRESSURE DROP
Although the pressure is constant at the pressure sensor,
pressure drops may be noticeable in other areas of the home
when additional taps are opened. This is due to restrictions in
the plumbing and will be more pronounced the farther the taps
are from the pressure sensor. This would be true of any system,
and if observed, should not be interpreted as a failure in the
performance of the Inline Constant Pressure System.
ADJUSTING THE PRESSURE SENSOR
The pressure sensor communicates the system pressure to the
Inline Constant Pressure System. The sensor is preset at the
factory to 50 psi (3.4 bar), but can be adjusted by the installer
using the following procedure:
a. Remove the rubber end-cap (FIGURE 4).
b. Using a 7/32" Allen-wrench (provided), turn the adjusting
screw clockwise to increase pressure and counter-clockwise to
decrease pressure. The adjustment range is between 25 and 80
psi (1.7 and 5.5 bar) (1/4 turn = approximately 3 psi (0.2 bar)).
c. Replace the rubber end cap.
d. Cover the pressure sensor terminals with the rubber boot
provided (FIGURE 4).
FIGURE 4:
Remove Rubber End Cap To Adjust Pressure
With 7/32" Allen Wrench Provided
Pressure Sensor
(Red/Black)
ADJUSTING PUMP SO SYSTEM DEMAND IS NOT
MORE THAN SYSTEM SUPPLY
Inline Systems are typically used to increase municipal water
pressure anywhere from 10 psi (0.7 bars) to 70 psi (4.8 bars)
above what is being supplied by the water utility. For the
pump to operate properly as it boosts the municipal water to
the desired pressure, a consistent and steady flow of water is
required. The system will fail prematurely if it is set to operate at
a point beyond what can be supplied.
PROCESS TO ENSURE PUMP IS RECEIVING
ENOUGH WATER TO MEET DEMAND
1.) Install a shut-off valve in the plumbing near the discharge of
the pump.
2.) Close the valve, but make sure that the supply water is
allowed to freely flow into the pump without restriction.
3.) Adjust system for maximum flow demand.
4.) Turn on the pump, and begin opening the discharge's
shut-off valve.
5.) Continue opening the discharge valve until a very distinct
noise is heard coming from the pump. This noise is called
Cavitation (which can destroy the pump over time), and will
sound like there is gravel inside the pump. STOP opening the
discharge valve once cavitation is heard.
6.) Slowly close the discharge valve until the cavitation is no
longer heard.
6
Non-Adjustable
Set at 100 psi
Pressure
Sensor
Boot
Quick Connect
Lead Connect
Pressure Shut-off Sensor
(Green/White)
Optional
7.) The pump is now adjusted so that the system demand will
not exceed what can be supplied.
8.) If the supply pressure or water demand varies over time, this
procedure may need to be repeated to eliminate cavitation.
DRIvE DIP SWITCH OPTIONS
The Inline System is factory set to properly operate in most
installations without needing any adjustments or changes to
the DIP switch settings. If changes are required, the following
is a description of what control logic changes will occur as a
switch's position is changed.
W A R N I N G Serious or fatal electrical shock may result from
contact with internal electrical components. DO NOT, under
any circumstances, attempt to modify DIP switch settings
until power has been removed and 5 minutes have passed for
internal voltages to discharge! Power must be removed for DIP
switch setting to take effect.
UNDERLOAD SENSITIVITY SELECTION
The Inline System controller is configured at the factory to
ensure detection of underload faults in a wide variety of
pumping applications. In rare cases this trip level may result in
nuisance faults. If the underload switch is activated it is best to
observe the system's behavior during the underload condition
to be sure it will perform as expected. Once the controller
begins to regulate pressure, check operation at several flow
rates to make sure the default sensitivity does not induce
nuisance underload trips.
If it is necessary to adjust the underload sensitivity, remove
power and allow the controller to discharge. Wait 5 minutes to
allow internal voltage to dissipate, locate the DIP switch bank.
Use a small screwdriver (provided) to move position 1 to "ON"
as shown.
STEADY FLOW SELECTION
The Inline System is configured at the factory to ensure quick
response to maintain constant pressure. In rare cases (as with
a water line tap before the pressure tank), the unit may need
to be adjusted to offer better control. If the unit is used on a
system that has a water line tap before the pressure tank or
where audible speed variations of the pump can be heard,
adjusting the pressure control response time may be necessary.
After enabling this feature, the installer should check flow
changes for possible overshoot. A larger pressure tank and/
or wider margin between regulation and valve pressure may
be required as the steady flow feature reduces the controller's
reaction time to sudden changes in flow.
If it is necessary to adjust the pressure control, remove power and
allow the controller to discharge. Wait 5 minutes to allow internal
voltage to dissipate, locate the DIP switch bank. Use a small
screwdriver (provided) to move position 2 to "ON" as shown.