Franklin Electric INLINE 400 Manual De Instalación Y Operación página 11

Priming the System
Risk of bodily injury or property damage.
• The Inline 400 Pressure Boosting System can develop very high pressure in some situations. Always
install a pressure relief valve able to pass full pump flow at 120 psi (6.9 bar). Install the pressure
relief valve near the pressure tank.
• It might be necessary to install a pressure reducing valve to limit the potential boost. Install the
pressure reducing valve after the pressure tank.
IMPORTANT: Prior to system start up, remove all air from the entire system using an air bleed plug to
assist with eliminating the air. Refer to
mation.
IMPORTANT: Never open the air bleed plug with the pump on as this may allow air to enter the pump
rather than expel it from the system.
1. Close all system water outlets.
2. Using a small flathead screwdriver, slowly open the air bleed plug (located directly under the pump outlet).
3. Open inlet valves to allow water supply to enter the pump.
• Air mixed with some water will discharge through the air bleed plug.
4. Close the air bleed plug when it stops sputtering and only a fine stream of water is being expelled.
5. Slightly open a system outlet valve.
6. Apply power to system.
7. If necessary, start the pump by pressing the pushbutton to put the pump into automatic mode.
8. Open a discharge valve to half open.
9. If, after a few minutes of running, pressurized water does not appear, repeat the priming process.
NOTE: If the unit does not prime in 10 seconds, the pump will stop and the red LED light will flash, in a
one blink pattern on the display. This is due to an underload fault in which the pump is not yet incurring
a load indicating water is being pumped. Press the pushbutton again to allow the pump to run for an
additional 10 seconds in order to attempt prime. Repeat as necessary.
10. Once the pump is operating, open the discharge valve and a system outlet fully, letting the pump oper-
ate until the water is running without any air sputtering.
NOTE: No further priming is necessary unless the pump is drained, or a leak develops in the suction
plumbing.
Adjusting Performance
High voltages capable of causing severe injury or death by electrical
shock are present in this unit.
• Disconnect power to the system before attempting to remove the control cap and adjust the dis-
charge pressure switch.
When installed properly with an external pressure tank, it is possible to adjust the pump cut-in pressure of
the unit.
• The pump is factory-set to start boosting (turn pump ON) when the discharge pressure drops
below 40 psi (2.8 bar).
• In certain applications, it may be desirable to adjust this setting to be higher or lower.
"Preparing System for Priming" on page 10
Priming the System
for additional infor-
OPERATION
11