Priming - Franklin Electric INLINE 400 Manuel Du Propriétaire

Plumbing Considerations for Priming Purposes
The Inline 400 needs to be primed with water before it can function properly. There are two internal non-return (check) valves built into the head
of the unit that need to open during priming. This requires that the priming water has an incoming pressure of 1.5 psi minimum. This is especially
important if the application involves boosting water out of a shallow cistern. There are two simple ways to accomplish this in the suction plumbing:
PRIMING: 1.5 psi can be achieved on the inlet by pouring
water through a 3' vertical water column. Be sure to keep
the inlet valve closed and open the air-bleed valve until
all air is purged from unit.
Inline 400 Priming
Never run the pump dry. Fill the suction pipe, pump housing, and discharge piping completely with water. A typical installation will be supplied by
either a tank or a pressurized water source, creating what is known as flooded suction condition
With the unit fully plumbed into the system, open the water supply valve and allow pressurized water to flow through the unit. Place a small bucket
under the Inline tank to capture water that is expelled from the air-bleed during priming. With a small flathead screwdriver, slowly open the air bleed
valve (located directly under the outlet) to allow air to exit the internal pump and tank. When the valve stops sputtering and only a fine stream of
water is being expelled, close the air bleed valve. The unit is now primed and ready for operation.
10
ADD WATER FOR PRIMING HERE
SHUT-OFF VALVE
PRIMING TUBE
INLET
OUTLET LINE
OUTLET VALVE
AIR BLEED VALVE (VENT)
GARDEN HOSE FITTING
INLET
PRIMING: Adequate inlet pressure/flow can be achieved
on the inlet by connecting a garden hose to a fitting on
the inlet side of the pump. Be sure to keep the inlet valve
closed, turn on water supply, and open the air-bleed
valve until all air is purged from unit.
OUTLET LINE
OUTLET VALVE
AIR BLEED VALVE (VENT)