Jacuzzi PROFESSIONAL Serie Manuel D'installation page 30

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Functions
The filter traps almost all impurities and sediments that get into the
hot-tub during use.
The following functions can be obtained by means of the handle of
the selector valve:
Standby position (0): used only when the hot-tub is not in use
and facilitates total drainage of water from the filter.
Filtering (1): this is position for normal use, where the water
from the hot-tub is pushed by the pump through the filtering
material, is recovered by the lower filtering elements of the in-
ternal distribution system, goes back up through the return at-
tachment, and then returns to the hot-tub through the nozzles.
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Backwash (2): the water is driven by the pump and is carried
in the opposite direction as in filtering, in order to clean the fil-
ter. In this case, the water enters the filter through the central
tube, exits from the lower filtering elements of the internal distri-
bution system, goes up through the filtering material and then
exits from the attachment to which the drain pipe is connected,
carrying with it the deposit trapped by the filtering mass during
filtering.
Discharge during filtering (3): in this position the water is
discharged into the ground drainage point after filtering. The
purpose is to eliminate the first filtered water and the position
can be used to clean the sand in the filter (during system start-up,
immediately after filling the filter with sand, or after changing it).
Drain (4): this position bypasses the selector valve. It is used
for draining water from the hot-tub (periodic emptying) with the
aid of the filtering pump. The water exits the attachment con-
nected to the drain.
Circulation (5): this is another position that bypasses the
selector valve. It can be sued to increase circulation speed and
hence the power of the jets at the nozzles in the tub. It is advisa-
ble to use this position only for short periods, since the water is
not filtered.
Closed (6): this position makes it possible to check for any
leaks in the pipes that go from the pump to the filter (not to be
used; required if the filter is used on systems with long pipes).
NOTE: the lever of the filter (mounted on the spa-pak) must be left
in the filtering position (1) during use of the hot-tub. Replacement
of the filter selector valve must be carried out with the filter
pump closed in order to avoid damage.
P
Always move the selector valve when the pump is
stopped to prevent pressure overloads.
Electric connections and safety
The hot-tub is provided separate from the control assembly
(spa-pak), which includes all electro-mechanical devices.
The compensation tank, which ensures maintenance of the cor-
rect water level in the hot-tub, must be connected to the spa-
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