Preparing To Start The Pump - Pentair FH Serie Mode D'emploi

Electrical / Preparing to Start the Pump
Connection Procedure:
1. Connect the ground wire first as shown in Figure 8. The
ground wire must be a solid copper wire at least as large as
the power supply wires.
2. There must be a solid metal connection between the
pressure switch and the motor for motor grounding protec-
tion. If the pressure switch is not connected to the motor,
connect the green ground screw in the switch to the green
ground screw under the motor end cover. Use a solid cop-
per wire at least as large as the power supply wires.
3. Connect the ground wire to a grounded lead in a service
panel, to a metal underground water pipe, to a metal well
casing at least ten feet (3M) long, or to a ground electrode
provided by the power company or the hydro authority.
4. Connect the power supply wires to the pressure switch as
shown in Figure 8, Page 7.

Preparing to Start the Pump

Never run pump dry. Running pump with-
out water may cause pump to overheat, damaging seal and
possibly causing burns to persons handling pump. Fill pump
with water before starting.
Figure 9: Prime the Pump
Motor
Series
FH50
BFH50
FH50S*
FHP50*
FH75*
*These models are no longer available for sale. Informational only.
Fill pump
and piping
through
priming tee.
1866 0795FH
Wiring Chart – Recommended Wire and Fuse Sizes
Max.
Load
HP volts Amp
1/2 115/230 9.4/4.7
1/2 115/230 9.4/4.7
1/2 115/230 9.4/4.7
1/2 115/230 9.4/4.7
3/4 115/230 12.2/6.1
Never run pump against closed discharge. To
do so can boil water inside pump, causing hazardous pres­
sure in unit, risk of explosion and possibly scalding persons
handling pump.
1. Remove the priming plug from the priming tee and fill the
pump. Fill all piping between the pump and the well and
make sure that all piping in the well is full. If you have
also installed a priming tee in the suction piping, remove
the plug from the tee and fill the suction piping. See
Figure 9.
2. Replace all fill plugs.
3. Power on! Start the pump. If you don't have water after
2 or 3 minutes, stop the pump and remove the fill plugs.
Refill the pump and piping. You may have to repeat this
several times in order to get all the trapped air out of the
piping. A pump lifting water 25' may take as long as 15
minutes to prime.
4. After the pump has built up pressure in the system and
shut off, check the pressure switch operation by opening
a faucet or two and running enough water out to bleed
off pressure until the pump starts. The pump should start
when pressure drops to 30 PSI and stop when pressure
reaches 50 PSI. Run the pump through one or two com-
plete cycles to verify correct operation. This will also help
clean the system of dirt and scale dislodged during instal-
lation.
Congratulations on a sucessful installation.
If you were unsuccessful, please refer to the Troubleshooting
section (Page 10).
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
Branch
0 ­ 100 101 ­ 200
Fuse
(0 ­ 30) (31 ­ 61)
Rating
Amp
15/15 14/14(2/2) 10/14(5.5/2) 10/14(5.5/2) 6/14(14/2)
15/15 14/14(2/2) 10/14(5.5/2) 10/14(5.5/2) 6/14(14/2)
15/15 14/14(2/2) 10/14(5.5/2) 10/14(5.5/2) 6/14(14/2)
15/15 14/14(2/2) 10/14(5.5/2) 10/14(5.5/2) 6/14(14/2)
20/15 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)
201 ­ 300 301 ­ 400
(62 ­ 91) (92 ­ 122)
AWG WIRE SIZE (mm )
2
6/12(14/3)
8
401 ­ 500
(123 ­ 152)
6/12(14/3)
6/12(14/3)
6/12(14/3)
6/12(14/3)
6/12(14/3)