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Piping:
Use at least 1-1/2" (38mm) pipe (use 2"(51mm) pipe if possible). Increase size
if a long run is needed. When using 1-1/2" pipe, connect to pump with 1-1/2"
to 2" (38 to 51mm) reducing adapter.
To avoid strains on the pump, support both suction and discharge pipes inde-
pendently. Place these supports near the pump.
To avoid a strain left by a gap at the last connection, start all piping at the
pump and run pipe away from the pump.
To avoid airlocking, slope suction pipe slightly upward toward the pump.
NOTICE: To prevent flooding when removing pump for service, all flooded
suction systems must have gate valves in suction and discharge pipes.
Fittings:
Fittings restrict flow; for best efficiency use fewest possible fittings.
Avoid fittings which could cause an air trap.
Pool fittings must conform to International Association of Plumbing and
Mechanical Officials (IAPMO) standards.
Use only non-entrapping suction fitting or double suction.
TABLE I - RECOMMENDED FUSING AND WIRING DATA
Serv. to Motor - Dist. in Ft. (M)
Motor Branch Fuse Max Load Voltage/ 0-100' 101-200' 201-300'
HP Rating Amps* Amps Hz/Phase (0-30) (30-60) (60-90)
1/2 15 8.5 115/50/1 2.0 2.0 2.5
3/4 20 11.4 115/50/1 2.5 4.0 6.0
1 20 14.0 115/50/1 2.5 4.0 6.0
1-1/2 30 16.6 115/50/1 4.0 6.0 10.0
1/2 15 4.25 230/50/1 2.0 2.0 2.0
3/4 15 5.7 230/50/1 2.0 2.0 2.0
1 15 7.0 230/50/1 2.0 2.0 2.0
1-1/2 15 8.3 230/50/1 2.0 2.0 2.0
1/2 15 2.51 230/50/3 2.0 2.0 2.0
3/4 15 3.38 230/50/3 2.0 2.0 2.0
1 15 3.66 230/50/3 2.0 2.0 2.0
1-1/2 15 4.8 230/50/3 2.0 2.0 2.0
1/2 15 1.45 380/50/3 2.0 2.0 2.0
3/4 15 2.0 380/50/3 2.0 2.0 2.0
1 15 1.83 380/50/3 2.0 2.0 2.0
1-1/2 15 2.8 380/50/3 2.0 2.0 2.0
* Time delay fuses are recommended instead of standard fuses in any motor circuit.
Metric
Wire
Size
(MM
2
)
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