Electrical Installation - Jandy Stealth SHPF.50 Installation And Operation Manual

Page 8
ENGLISH
3.1.3.2 Discharge Pipe
When the pump is located up to 50 feet from the pool,
the recommended minimum pipe size for the discharge
side of the pump is:
• 2" for .75 to 1.5 HP*
• 2½" for 2.0 HP*
• 3" for 3.0 HP*
• 4" for 5.0 HP*
* HP refers to full-rated pumps
NOTE All pipe sizes are able to withstand the pressures
the pump will deliver, but not necessarily the flow. If
the pipe is too small for the pump, or it is elevated
above water, the maximum gallons per minute (GPM)
may not be delivered. If this happens, the pump will
develop an air pocket (cavitation) that will make noise
and the pump life will be shortened.
3.1.3.3 Installation Recommendations
1. If the pump is located below water level,
isolation valves must be installed on both sides
of the pump to prevent back flow of pool water
during any routine or required servicing.
2. To help prevent difficulty in priming, install the
suction pipe without high points (above inlet
of pump - inverted "U"s in plumbing), which
can trap air. For installations of equipment
up to 100 feet from the water, refer to the
pipe sizing chart, Table 1. For installations of
equipment more than 100 feet from the water,
the recommended pipe must be increased to the
next size.
Table 1. Pipe Sizing Chart for Schedule 40 PVC
Pipe Maximum Flow
Size Suction
(6 feet per second)
1½" 37 GPM (140 LPM)
2" 62 GPM (235 LPM)
2½" 88 GPM (333 LPM)
3" 136 GPM (515 LPM)
4" 234 GPM (886 LPM)
3. SHP Pumps come equipped with unions on
both the suction and discharge ports. This
feature simplifies installation and service, and
eliminates the possibility of leaks at threaded
adapters.
4. The SHP Pump must be connected to at least two
(2) hydraulically balanced main drains (suction
outlets) for each pool pump suction line. Each
drain (suction outlet) assembly must be provided
with covers and must be listed or certified to the
latest version of ANSI
successor standard, ANSI/APSP-16. The suction
Jandy Stealth
® ™
Maximum Flow
Discharge
(8 feet per second)
50 GPM (189 LPM)
85 GPM (322 LPM)
120 GPM (454 LPM)
184 GPM (697 LPM)
313 GPM (1185 LPM)
/ASME A112.19.8, or its
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Pumps Operation Manual
outlets of the main drains must be at least three
(3) feet apart or at different planes. The suction
outlets can be a drain and skimmer, two (2)
drains, two (2) skimmers, or a skimmer with an
equalizer line installed. Check the local codes for
proper installation requirements.
NOTE
To prevent entrapment, the system must be built so
that it cannot operate with the pump drawing water
from only one (1) main drain. At least two (2) main
drains must be connected to the pump when it is in
operation. However, if two (2) main drains run into
a single suction line, the single suction line may be
equipped with a valve which will shut off both main
drains from the pump.
5. The piping must be well supported and not
forced together where constant stress will be
experienced.
6. Always use properly sized valves. Jandy
Diverter Valves and Ball Valves typically have
the best flow capabilities.
7. Use the fewest fittings possible. Every
additional fitting has the effect of moving the
equipment farther away from the water.
NOTE
If more than 10 suction fittings are needed, the pipe
size must be increased.
8. If this is a new installation, pressure test
according to local codes. See Section 3.3,
Pressure Testing.
3.2

Electrical Installation

3.2.1 Voltage Checks
The correct voltage, as specified on the pump data plate,
is necessary for proper performance and long motor life.
Incorrect voltage will decrease the pump's ability to
perform and could cause overheating, reduce the motor
life, and result in higher electric bills.
It is the responsibility of the electrical installer to
provide data plate operating voltage to the pump by
ensuring proper circuit sizes and wire sizes for this
specific application.
The National Electrical Code
requires all permanently installed pool pumps intended
for use on 15 or 20 ampere, 120 through 240 volt,
single phase branch circuits be protected with a Ground
Fault Interrupter (GFCI). Therefore, it is also the
responsibility of the electrical installer to ensure that
the pump circuit is in compliance with this and all other
applicable requirements of the National Electrical Code
(NEC) and any other applicable installation codes.
Failure to provide data plate voltage (within 10%)
during operation will cause the motor to overheat
and may void the warranty.
(NEC , NFPA-70
® ®
CAUTION
)
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