Protection Features; Maximum Inlet Pressure; Maximum Output Pressure; Maximum Operating Temperature - Franklin Electric INLINE 400 Manual Del Usuario

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OPERATION

Protection Features

Protection Features

Maximum Inlet Pressure

The maximum internal pressure rating of the Inline 400 is 100 psi (6.9 bar). Therefore, the maximum inlet
pressure when added to the maximum Inline 400 pump pressure must not exceed 100 psi (6.9 bar). The
unit incorporates an internal pressure switch that will not allow the unit to turn ON if the inlet pressure
exceeds 40 psi (2.8 bar) either before or during desired operation. The LED display will show rapid green
flash, 2 blinks per second, followed by a 1 second pause.
Example: If you wish to use this booster in an application with 45 psi (3.1 bar) incoming, it is recommended
to install a pressure reducing valve (PRV) on the inlet side of the unit. The PRV would be used to maintain a
constant pressure below the cut-in pressure and could be used to limit the maximum pressure created.

Maximum Output Pressure

The Inline 400 will maintain a "NO-FLOW" system pressure equal to the incoming pressure (psi/bar) plus
the shut-off pressure from the pump operating curve. For example, if the input pressure is 38 psi (2.6 bar),
at shut off the system will boost an additional 55 psi (3.8 bar). This means ALL plumbing downstream of the
Inline 400 would be subject to maintaining 93 psi (38 psi + 55 psi) or 6.4 bar (2.6 bar + 3.8 bar). If this high
pressure is undesirable due to the condition and/or configuration of the existing plumbing or appliances,
installing a PRV on the discharge of the Inline 400 is recommended to limit the maximum distributed pres-
sure.

Maximum Operating Temperature

The Inline 400 is equipped with two temperature sensors. One is installed integral to the motor to protect
the motor windings. The other is installed in the control head and senses the internal temperature of the
water. In both cases, the unit will fault at a maximum temperature of 120 °F (49 °C) and turn back on when
the temperature drops below 95 °F (35 °C). A control head sensor trip is indicated by a 5 flash pattern, fol-
lowed by a 1 second pause. The Inline 400 Control Head cannot detect a trip of the internal pump's motor
faulting from an overload.
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