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Comments on the energy efficient control

(Overflow and economy mode)

The most original concept of the AS Control Plus is the tempera-

ture-dependent switching between overflow and economy (also

known as normal operation) modes of operation and the resultant

energy savings.

1. Overflow operation:

In the so-called overflow operation (normal operation) the water is

circulated via the overflow channel ➔ overflow tank ➔ pump

➔ pool ➔ overflow channel. The hydraulic operation is optimal

because the pool water is drained via the overflow. However, with

high water temperatures and low air temperatures there is a large

amount of heat loss (evaporation, convection). During operation,

with the pool covered open, the pool water has to be circulated

via the overflow.

2. Economy mode:

In so-called economy mode water is drained directly from the pool

(i.e. from one or more drains). Pool ➔ pump ➔ pool. Thus the

water no longer flows via the overflow. The heat loss is reduced

considerably. Economy mode is best suited to periods of cold

weather or during a pool heat-up period. During periods of use

the pool should always be run in overflow mode for reasons of

security and hydraulic efficiency.

Limits of liability:

We do not assume any liability for the layout or safety of the

drainage system. The correct layout of the drainage system is the

responsibility of the installation company. The local regulations

concerning the safety of drainage systems must be observed.

If there are no specific regulations we always recommend that

drains with hair-trap security be fitted. As well as installing at least

two drains with a distance of 1,5 m between them. The suction

speed of the drains should not exceed 1,2 m/s. The ideal position

for drains is where the bathers cannot come into contact with them.

CAUTION: incorrect drain installation can cause death.

Pump switched off:

If the pump is switched off or there is an electricity cut, the

Besgo valve will be in economy mode (drain directly from the

pool). In this way the pool will not be emptied by mistake. The

water cannot be fed back into the overflow tank via jets and the

filter. That would lead to a loss of water, if the water level in the

collection tank were to rise so high that the water flowed over

the edge of the buffer tank.

As additional security we recommend the installation of a

non-return valve into the inlet jet system as well as the

incorporation of a forced start (5th probe) in the collection

tank.

Limits of liability:

We do not assume any liability for the cost of loss of water, which

is caused by the failure, and/or misuse of the AS Control Plus or

the Besgo valves.

AS Control Plus

02-2019 EN

Overflow operation

Economy mode