Instructions / Assembly

Page 9
Stealth
™
Series Pumps Installation and Operation Manual
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 must be provided with covers that are
listed or certified to the latest version of ANSI/
ASME A112.19.8. The suction 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 Jandy 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 (NEC, NFPA-70)
requires all pool pump 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.
- 3" for 3.0 HP*
- 4" for 5.0 HP*
* HP refers to full-rated pumps
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
Size
Maximum Flow
Suction
(8 feet per second)
Maximum Flow
Discharge
(10 feet per second)
1½" 50 GPM (189 LPM) 65 GPM (246 LPM)
2" 85 GPM (322 LPM) 105 GPM (397 LPM)
2½" 120 GPM (454 LPM) 149 GPM (564 LPM)
3" 184 GPM (697 LPM) 230 GPM (871 LPM)
4" 317 GPM (1203 LPM) 397 GPM (1502 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.