Hydraulic Connection; Electric Connection - GRE AR119 Manuel D'installation Et D'entretien

2 INSTALLATION
Place the filter on a flat, solid surface at a minimum distance of 3.5 metres from the pool (in accordance with standard
NF C15-100 or the equivalent standard of the region or country) and at the same level as the bottom of the pool to
prevent air from entering the cleansing circuit and the filter from becoming unprimed (Fig. 1). The filter should be
protected from sun and rain, and kept it in an area with sufficient ventilation during operation. Never cover it during
operation.
Do not turn over the carboy, since it contains the dry load of silica sand which is required (10 kg).

2.1 HYDRAULIC CONNECTION

After the monobloc has been set into place, proceed as follows:
Loosen the upper nut on the filter. Remove the cover and take out the protective plastic disc. (Fig.2)
Place the rubber coupling against the threaded tank opening. Then, insert the cover and the closing nut, and use the
appropriate clamps to connect the ø25 mm, 1 m. length (discharge) hose between the pump outlet and the filter cover.
(Fig.3)
Use the appropriate clamps to connect the ø32 mm, 4.5 m. length (suction) hose between the suction valve and the
pump inlet (Fig.4). Install the rubber bushing (Fig.4 position C) with the Teflon supplied.
Use the appropriate clamps to connect the ø25 mm, 4.5m. length (feedback) hose between the discharge valve and
the filter outlet.(Fig.5)
Fill the pool with water.

2.2 ELECTRIC CONNECTION

that refers "to the construction of electrical installations, both in indoor and outdoor swimming pools", or the
The pump must be connected to a 220/230 v. alternating current 50 Hz power outlet with earth connection. A
omnipolar switch must be used to ensure there is no power feed to the filter when it is not in use. A differential of 30
mA for protection from electrical breakdowns must also be used. (Not supplied. These items can be purchased at
electricity shops).
2.3 START-UP
BEFORE BEGINNING THE FIRST FILTRATION CYCLE, PERFORM AN BACKWASH OF THE SILICA SAND IN THE
FILTER. (SEE AUTOMATIC BACKWASH).
3 DRAINING THE FILTER
For proper operation of the filter, it should be drained when it is started up after changing the hoses or the initial
connection. In order to do so, while the pump is operating, unscrew the upper nut slightly in order to allow all of the air
which has accumulated in the carboy to be released, until water overflows without bubbles. Then, close the filter.
4 OPERATION
The operation of this filter is based on the retention capacity of the silica sand placed inside. To maintain the pool
water in good condition, the chemical products (chlorine, alga protection, etc. DO NOT USE FLOCCULANT )
recommended by the manufacturer should also be used. (See the pool manual). Depending on the periods of use, the
environment, pollen, trees and the frequency of bathing, factors which influence the dirtiness of the pool water, the
automatic backwash must be performed on the filter with greater or less frequency (See automatic backwash section).
5 FILTRATION (Fig.6)
The assembly described in the hydraulic connection section will prepare the unit for filtration.
All of the pool water should be recirculated once a day.
The service life of the filter will be extended if the periods of continuous operation are not longer than 2h. Its filtration
needs are determined by the relation between the volume of m
filter. Leave the motor idle at least 2h between operating intervals.
Example:
6 SAND BACKWASH (Fig.7)
An automatic sand backwash cycle should be performed every week.
To perform automatic sand backwash of the filter, proceed as follows:
• First of all, a garden hose which is connected to a tap is needed.
• Unplug the filter from the power point and close the suction and discharge valves.
All electrical installations should comply with the following standard:
NF EN 60-335-2-41
equivalent standard in force in each region or country.
Volume of the pool in m
Filter flow in m
3
8 m
= 4 hours
3
2 m /h
NF C15-100
3
of water in your pool and the 2m
3
= hours required
3
2 cycles of 2 hours with an intermediary
cycle of 2 hours rest
3
3
/h flow rate of the