Astralpool A143C3 Посібник користувача - Сторінка 7

Переглянути онлайн або завантажити pdf Посібник користувача для Водяний насос Astralpool A143C3. Astralpool A143C3 16 сторінок. Self-priming commercial centrifugal pumps with trap for swimming pool use

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IAPMO Certified

Anti-entrapment

Cover or Suction Fitting,

screw-fastened to

Main Drain Sump

Suction Outlet

(Main Drain)

Figure 1 – Recommended pump suction layout.

Use larger pipe as required to keep water velocity below 7 feet per second or

local construction code limits, whichever is lower.

Suction pipe must rise continuously from source to pump. To avoid airlock-

ing, do not allow high spots in pipe.

When using reducer to connect to pump flange, use an eccentric reducer with

the straight side on top.

Piping – Discharge

Maximum water velocity should be 7 feet per second in metal pipe or 10 feet

per second in plastic pipe.

To minimize friction losses, make piping one size larger than pump openings.

Fittings restrict flow; for best performance use fewest possible fittings.

Avoid fittings which could cause an air trap.

Pool fittings must conform to International Association of Plumbing and

Mechanical Officials (IAPMO) standards.

POOL PUMP SUCTION

REQUIREMENTS

Pump suction is hazardous and can trap and drown or disem-

bowel bathers. Do not use or allow anyone else to use a pool, spa, or hot tub

unless it has at least two suction outlets to each pump suction line (see

"Outlets Per Pump," Page 8). 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.

At Least

3 Feet

No valves between

Tee and Main Drains

Valves OK between

pump and Tee