Control Module - Astralpool VRAC Manual De Instalación Y Mantenimiento

ENGLISH
Wash process:
The valve automatically reverses the filtration cycle and commences the sand wash process,
this requires that the valve is set so that the water coming from the PUMP connection passes
through the valve and is taken to the filter by the BOTTOM connection, the sand is stirred and
the water, together with any accumulated dirt exits the valve TOP connection which
communicates with the WASTE connection and is taken to the drains. This process is carried
out in accordance with the pre-established timing.
Back-wash process:
The valve is positioned to compress the filter bed and not to send water containing sand to the
swimming pool, this is achieved by water coming from the PUMP connection entering the filter
by the TOP connection, it then compresses the sand and the water enters the valve via the
BOTTOM connection which then sends it to the WASTE connection. This process is carried out
in function of the pre-established time and once it has elapsed, the valve commences the
filtration process again.
VALVE CHARACTERISTICS
Sizes 1½" and 2", side and top mounting
Valve body manufactured in ABS
Internal distributor manufactured in PPO
Connection via threaded female, BSP or NPT, BOTTOM connection for gluing
Operating pressure 3.5 bars
Test pressure 5.2 bars

1.4 CONTROL MODULE.

This is the part of the valve which consists of a geared motor and an electronic card with limit
switches for the various valve operational positions.
An electronic circuit which receives commands so that the pre-established program is ex-
ecuted.
Mechanical components which carry out the various valve movements.
The entire assembly is mounted inside a transparent casing which is closed by four screws.
The module includes a signal receptor/transmitter unit for receiving and giving commands to
the valve.
The electrical input and output connections are protected by compression glands which pro-
vide perfect protection against external agents which could damage the assembly.
The power supply is 24 Vdc.
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