Effect Of System Leaks - Franklin Electric INLINE 400 Serie Manuel Du Propriétaire

OPERATION
Priming the System
If the installer desires to change this from a 80 psi–40 psi drop to a 80 psi–50 psi drop, the discharge pres-
sure switch can be adjusted to turn the pump ON when the discharge pressure reaches 50 psi.
Follow these steps:
1. Disconnect the unit from incoming power.
2. Remove the six control cap screws and remove the cap.
NOTE: Be careful when removing the control cap, as there is an electrical cable attached to the cap.
3. Using a 7/32" hex wrench, turn the internal discharge pressure switch screw (2) clockwise one full turn.
This should raise the switch cutoff by 10–12 psi (0.7 - 0.8 bar).
4. Replace the control cap and re-install six control cap
screws.
5. If desired (not required), adjust the pressure tank pre-
charge pressure to a maximum of 2 psi (0.1 bar) below
the new outlet pressure switch setting (48 psi (3.3 bar)
in this example).
NOTE: NEVER adjust the discharge pressure switch to a
setting HIGHER than the SUM of your minimum incom-
ing pressure + 40 psi, as doing so may result in a system
fault (flashing red LED).
1. Water Source INLET
2. Pressure Switch adjustment screw
3. Water OUTLET

Effect of System Leaks

Leaking water systems may cause the system to cycle more than expected. This is due to the unit turning on
when the outlet pressure drops below the preset discharge pressure (factory-set at 40 psi/2.8 bar). Contin-
uous running or a high number of starts and stops will not hurt the controller, pump, or motor. The issue
should still be fixed, if possible, to eliminate an increase in power usage of the system.
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