Pool Pump Suction Entrapment Prevention Guideline - Jandy AquaLink TCX Manual De Instalación Y Operación

Jandy AquaLink TCX™ Power Center
® ®
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Pool Pump Suction Entrapment Prevention Guideline

Pump suction is hazardous and can trap and drown or
disembowel bathers. Do not use or operate swimming
pools, spa, or hot tubs if a suction outlet cover is
missing, broken, or loose: The following guidelines provide
information for pump installation that minimizes the risk of
injury to users of pools, spas, and hot tubs:
Entrapment Protection: The pump suction system must
provide protection against the hazards of suction entrapment.
Suction Outlet Covers: All suction outlets must have
correctly installed, screw-fastened covers in place. All suction
outlet (drain) covers must be maintained. Drain covers must
be listed/certified to the latest version of ANSI
A112.19.8 or its successor standard, ANSI/APSP-16. They
must be replaced if cracked, broken, or missing.
Number of Suction Outlets Per Pump: Provide at least
two (2) hydraulically-balanced main drains, with covers, as
suction outlets for each circulating pump suction line. The
centers of the main drains (suction outlets) on any one (1)
suction line must be at least three (3) feet apart, center to
center. See Figure 1.
The system must be built to include at least two (2) suction
outlets (drains) connected to the pump whenever the pump
is running. However, if two (2) main drains run into a single
suction line, the single suction line may be equipped with a
valve that will shut off both main drains from the pump. The
system shall be constructed such that it shall not allow for
separate or independent shutoff or isolation of each drain.
See Figure 1.
More than one (1) pump can be connected to a single suction
line as long as the requirements above are met.
Listed/certified to the latest
published version of
ANSI /ASME
®
its successor standard,
ANSI/APSP-16.
Anti-entrapment
Cover/Grate or Suction
Fitting, securely fastened to
Main Drain Sump
Suction Outlet
(Main Drain)
Valves permitted only after tee
Figure 1. Number of Suction Outlets Per Pump
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Installation & Operation Manual
/ASME
®
A112.19.8 or
®
No valves between
Tee and Main Drains
SAVE THESE INSTRUCTIONS
Water Velocity: The maximum water velocity through the
suction fitting or cover for any suction outlet must be 1.5
feet per second unless the outlet complies with the latest
version of ANSI/ASME A112.19.8 or its successor standard,
ANSI/APSP-16, the standard for Suction Fittings For Use in
Swimming Pools, Wading Pools, Spas, and Hot Tubs. In any
case, do not exceed the suction fitting's maximum designed
flow rate.
If 100% of the pump's flow comes from the main drain system,
the maximum water velocity in the pump suction hydraulic
system must be six (6) feet per second or less, even if one
(1) main drain (suction outlet) is completely blocked. The
®
flow through the remaining main drain(s) must comply with
the latest version of ANSI/ASME A112.19.8 or its successor
standard, ANSI/APSP-16, the standard for Suction Fittings
For Use in Swimming Pools, Wading Pools, Spas, and Hot
Tubs.
Testing and Certification: Suction outlet covers must have
been tested by a nationally recognized testing laboratory
and found to comply with the latest version of ANSI/ASME
A112.19.8 or its successor standard, ANSI/APSP-16, the
standard for Suction Fittings For Use in Swimming Pools,
Wading Pools, Spas, and Hot Tubs.
Fittings: Fittings restrict flow; for best efficiency use fewest
possible fittings (but at least two (2) suction outlets).
Avoid fittings which could cause an air trap.
Pool cleaner suction fittings must conform to applicable
International Association of Plumbing and Mechanical
Officials (IAPMO ) standards.
®
At Least
3 Feet
Listed/certified to the latest
ENGLISH
WARNING
published version of
ANSI/ASME A112.19.8 or
its successor standard,
ANSI/APSP-16.
Anti-entrapment
Cover/Grate or Suction
Fitting, securely-fastened
to Main Drain Sump
Suction Outlet
(Main Drain)
Pump
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