ENGLISH
57
‐
At the end of pump startup (as described in par. 5.2), the flow is checked; if it regular, Priming has already been
completed and it passes to the conditions of the active setpoint.
‐
If this is not the case, the system has discharged and must be primed again: it now enters the second phase,
where the pump is activated at
Maximum Priming Speed
, until it is primed or at any rate for all the time specified
by the parameter “
Max Priming Time
”.
Here too, if priming has been successful, it proceeds regularly according to the active setpoint.
But if priming has not been successful, it goes into “
NoPriming
” fault status (block). On blocks and resets, see chapter
7.
Figure 36
The “
Priming
” item on the menu allows you to:
‐
enable or disable the function (factory value: enabled);
‐
select
“
Max Priming Speed
”, between 50% and 100%;
‐
select “
Max Priming Time
”, between 1 and 30 minutes.
The factory values are given in chapter 8.
In installations below water level, it is not generally necessary to perform Priming each time the pump is
started (and it can be disabled).
The maximum speed during priming (“Max Priming Speed”) can be reduced in the case of systems that
are not able to withstand high speeds.
6.2.8 Antifreeze (Protection against water freezing in the pump)
As is known, the formation of ice, that is the change of state of water from liquid to solid, causes an increase in
volume, with the risk of breakages for the systems containing water.
For this reason it is generally recommended to empty any pump and hydraulic system during winter, when the
temperatures are close to freezing point.
However, our system is equipped with the “
Antifreeze
” function, which automatically rotates the pump if the
temperature falls to values close to zero. The water inside the pump is thus kept moving and slightly heated, thus
limiting the risk of the formation of ice.
This function protects the pump, but it cannot generally prevent the formation of ice in the swimming
pool or in other parts of the system.
The temperature sensor is fitted close to the motor and does not directly feel the water temperature, but
that of the pump motor assembly.
If the pump is in a technical room, the outdoor temperature may be lower, even much lower, than the
one measured by the sensor.
ATTENTION: The
Antifreeze
protection works only as long as the system is regularly powered: with the
electric power disconnected or in the absence of current (even accidental, such as after a blackout) the
protection cannot work. So it is advisable not to leave the system loaded during periods of inactivity in
winter, but empty it accurately.
In cases of long inactivity, it is advised not to disconnect the electric power to keep the
antilock
protection active (see the following paragraph).
The intervention of the Antifreeze function turns the pump even if the system is in STOP status (white
led
blinking), and is not influenced by the active operating mode (manual or automatic).
If you want to prevent the Antifreeze function intervening and turning on the motor, the function
must be disabled.
