Operation - GRE AR-135 Installation And Maintenance Manual

2.2.4 Assembly the pressure gauge
WITHOUT
PRESSURE GAUGE
3 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 V. alternating current and 50 Hz power point, with earth connection.
Consumption: 3.4 A.
An omnipolar switch must be used to ensure there is no power feed to the filter when it is not in use. A 30 mA differential
must also be used to protect from electric discharges. (Not supplied. These items can be purchased at electric supply
stores.)
4 UPPER SELECTOR VALVE
The upper selector valve is responsible for selecting the 6 different filter functions: backwash, recirculation, rinse, filter,
waste, and close. To change the valve position, proceed as follows:
? Always disconnect the power socket.
? Press firmly on the upper valve control until the front rib is released from its housing and it can turn on its own axis.
? Gently turn the control until the front rib is aligned with the housing for the desired operation.
? Release the control gradually and check that the front rib is fully inserted in the appropriate housing.

5 OPERATION

The operation of this filter is based on the filtration capacity of the silica sand, which is inside. The water in the pool is
driven by the filter pump and forced to pass through the silica sand. The sand acts as a filtering element, which retains
the impurities in the water. The environment, trees, pollen, insects and frequency of bathing, as well as other factors,
determine the dirtiness of the water in the pool. Depending on the dirtiness, the silica sand in the filter should be cleaned
with greater or less frequency (see section 5.3).
To maintain the pool water in good condition, use the chemical products recommended by the manufacturer (chlorine,
alga protection, flocculant, etc.).
THE CHEMICAL PRODUCT SHOULD NEVER BE PLACED IN THE BASKET OR THROUGH THE FILTER, THIS
WOULD DETERIORATE THE MATERIALS OF THE UNIT AND LIMIT ITS EFFICACY.
5.1 Priming the filter
The filter must be correctly primed at all times. If the filter is not primed this means that an air chamber has been created
inside which causes defective circulation of water. This fact prevents proper filtration of the water by the silica sand and is
detrimental to the motor.
The filter may become unprimed for several reasons:
? Starting up a new unit.
? Starting up a unit after an extended period of inactivity.
? Following the incorrect use of a suction bottom cleaner.
? Air absorbed by the skimmer due to the low level of water in the pool.
? Due to incorrect use of the unit, suction cover or skimmer plug.
5.1.1 When is the filter unprimed?
The filter is unprimed when:
1
All electrical installations should comply with the following standard:
equivalent standard in force in each region or country.
2
NF C15-100
NF EN 60-335-2-41
4
3