Pipe Sizing - Zodiac Jandy Pro ePump Série Manuel D'installation Et De Fonctionnement

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ENGLISH
Figure 2. Typical Piping Installation

3.1.3 Pipe Sizing

NOTE All HP ratings given in this section apply to full-
rated pumps.
3.1.3.1 Suction Pipe
When the pump is located up to 50 feet from the
pool, the recommended minimum pipe size for the
suction side of the pump is 2" for .75 to 1.5 HP*. For
2.0 HP* pumps, the recommended pipe size is 2 ½". For
3.0 HP* pumps, the recommended pipe size is 3".
* 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*. For
2.0 HP* pumps, the recommended pipe size is 2½". For
3.0 HP* pumps, the recommended pipe size is 3".
* 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 is elevated above water, the
maximum gallons per minute (GPM) may not be
delivered. If this happens, the pump will develop
a pocket of air (cavitation) that makes noise.
This may shorten the life of the pump.
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 the back flow of pool water during any
routine or required servicing.
Jandy Pro Series ePump™ Series Pump | Installation and Operation Manual
®
2. To help prevent difficulty in priming, install the
suction pipe without high points (above inlet
of pump - inverted "U"s, commonly referred to
in plumbing as an airlock) that can trap air. For
installations of equipment up to 100 feet from the
water, refer to Table 1, the pipe sizing chart. For
installations of equipment more than 100 feet from
the water, the recommended pipe size must be
increased to the next size.
Table 1.
Pipe
Size
1½"
2"
2½"
3"
4"
3. ePump Series 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 Jandy Pro Series ePump must be connected to
at least two (2) hydraulically-balanced main drains
(suction outlets) for each pool pump suction line.
Refer to Figure 2. Each drain must be provided
with covers that are listed or certified to the latest
published edition of ANSI/ASME A112.19.8, or
its successor standard ANSI/APSP-16. The suction
outlets of the main drains must be at least three (3)
feet apart or at different planes. The suction outlets
AQUAPURE ®
MANUAL BYPASS IS USED
WHEN FILTRATION FLOW RATE
EXCEEDS THE LIMITATION OF THE
HEATER. REFER TO THE HEATER
MANUAL FOR MAXIMUM FILTRATION
FLOW RATES.
Pipe Sizing Chart for Schedule 40 PVC
Maximum Flow
Suction
(6 feet per second)
37 GPM (140 LPM)
62 GPM (235 LPM)
88 GPM (333 LPM)
136 GPM (515 LPM)
234 GPM (886 LPM)
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)