Pentair BERKELEY Manual Del Usuario página 11

Installation • Swimming Pool Pump Suction Connection
Suction Requirements
Pump suction is hazardous and can
trap and drown or disembowel bathers. Do not use
or operate swimming pools, spas, or hot tubs if a
suction outlet cover is missing, broken, or loose.
Follow the guidelines below for a pump installation
which minimizes risk to users of pools, spas, and hot
tubs.
Entrapment Protection
The pump suction system must provide protection
against the hazard of suction entrapment or hair
entrapment/entanglement.
Suction Outlet Covers
All suction outlet covers must be maintained. They
must be replaced if cracked, broken, or missing.
All suction outlets must have correctly installed, screw-
fastened covers in place.
Testing and Certification
Suction outlet covers must have been tested by a
nationally recognized testing laboratory and found to
comply with the latest ASME/ANSI Specification for
Suction Fittings For Use in Swimming Pools, Spas, Hot
Tubs, and Whirlpool Bathtub Applications.
An NSF certified hair and lint strainer must be installed
with the pump in order to comply with NSF Standard 50.
Outlets Per Pump
Provide at least two hydraulically balanced main
drains, with covers (see Page 10), for each swimming
pool pump suction line. The main drains (suction
fittings) must be at least three feet apart, nearest point
to nearest point.
The system must be built so that it cannot operate with
the pump drawing water from only one main drain (that
is, there must be at least two main drains connected to
the pump whenever it is running). However, if two main
drains run into a single suction line, the single suction
line may be equipped with a valve which will shutoff
both main drains from the pump.
More than one pump can be connected to a single
suction line as long as the requirements above are
met.
Water Velocity
The maximum water velocity through any suction outlet
must be 1.5 feet per second. 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 feet per
second or less even if one main drain (suction fitting) is
completely blocked.
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