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INSTRUCTION MANUAL
To perform the functions indicated, the unit is principally
formed of the filter, the pump and the selector valve.
The selector valve may have 4 or 6 positions, depen-
ding on the number of functions of each equipment unit.
The filtration unit has been designed to comply with
the ANSI / NSF 50 standard.
2.1. Principal functions
ENSURE THAT THE PUMP IS NOT IN OPE-
RATION BEFORE CHANGING THE POSI-
TION OF THE VALVE.
2.1.1. Filtration
This consists in recirculating the water of the swim-
ming pool from the skimmer and overflow, driving it by
means of the pump through the filter and returning
the filtered water to the swimming pool. (Fig. 1)
The operating time of the equipment depends on
the volume of water in the swimming pool and the
filtration capacity of the equipment (flow). See
point (3-4) Start-up.
2.1.2 Pressure control
The pressure gauge permits control of filter pressure.
It is important to check the pressure at regular inter-
vals to ensure optimum equipment operation.
When the pressure increases by 0.5 kg/cm
tion to the initial reading the filter is reaching satura-
tion point, thus reducing filtering capacity. When the
pressure shows such an increase the washing pro-
cess must be carried out. It is therefore important to
observe and note down the pressure at first start-up.
The use of certain swimming-pool accessories, such
as the bottom-suction device, can reduce filtering
effectiveness and lead to gradual saturation of the
filter.
2.1.3. Washing
If the filter is saturated, it must be washed. This con-
sists of 2 stages:
a) Backwashing: countercurrent circulation of the
water through the filter and towards the outflow for
approximately 3 minutes. (Fig. 2)
b) Rinsing: circulation of water through the filter
towards the outflow, until the water is clear. (See
inspection window). In the absence of a window,
perform this operation for 1/2-1minute. (Fig. 3)
2.1.4. Recirculation – Bypass (only for units with 6-
position valves)
When the selector valve is in this position, the water
from the pump is recirculated directly towards the
swimming pool, without passing inside the filter.
Ensure that the pump is not in operation, turn the
valve to the "RECIRCULATION" position and start up
the pump.
To apply this process during the chemical treatment
of the water. (Fig. 4)
2.1.5. Emptying (only for units with 6-position valves)
If the swimming pool does not have an outflow at the
bottom, it can be emptied by means of the equipment
pump. This function can also be used to remove large
particles of dirt from the bottom of the pool with the
pool bottom cleaner; in this way the dirt will not pass
through the filter. (Fig. 5)
2.1.6. Closed (only for units with 6-position valves)
In this position all the functions are interrupted. This
is used to carry out maintenance work on the filte-
ring tank. (Fig. 6)
3. INSTALLATION AND START-UP
3.1. Typical installation diagram. (Fig. 7)
3.2. Fitting instructions
in rela-
2
7
– The equipment must be installed and fitted
by an authorised fitter.
– Installation must be carried out in accor-
dance with the safety standards for swim-
ming pools, especially standard EN 60364-7-
702 and the particular standards for each
application.
– For the safety of persons, it is imperative
that the filtration unit is installed at a distance
of at least 3.5 m from the swimming pool and
in compliance with the regulations in force.
If it is installed less than 3.5 m from the swim-
ming pool, use of this equipment is prohibited
while the pool is being used.
– The power supply line must be protected by
an automatic shutoff device, a differential cir-
cuit breaker with a cut-off current of no more
than 30 mA.
– Special care must be taken to prevent water
entering the pump motor or other live electri-
cal parts of the installation.
– Check that the mains voltage and frequency
correspond to those indicated on the pump
specifications plate.
– The premises must be equipped with a ven-
tilation inlet to ensure the optimum operation
and reliability of the equipment.
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