Askoll Energy Saving 15-60/130 Instructions D'installation Et Fonctionnement page 20

activation of the circulator
CAUTION!
CAUTION!
size the activation stage of the circulator taking into account this current peak. For
further details contact Askoll.
Activation frequency: activations/deactivations through the mains voltage ≤ 20/24 h.
3.3 Start
CAUTION!
The circulator can be noisy at start due to the presence of air. Such noise should
stop after few minutes of operation. Usually air is drained from the circulator after
short time.
automatic detection of the presence of air - vent system.
The Askoll energy Saving and energy Saving Solar circulators are equipped with
a special software system that detects the presence of excess of air within the
heating system.
The guide light (LED) shows the presence of air in the hydraulic circuit by flashing
and performing a rapid succession of different colour.
Following the light signal, it's possible to easily vent the heating system as follows:
• open the air vent valve in the hydraulic circuit above the circulator;
• set the circulator to MAX position (maximum performance setting);
• let the circulator run for a short period, according to the construction and the plant size;
• once vented the system - the guide light (LED) stops blinking and the possible noise
stops - set the circulator as indicated in Settings concerning circulator performance.
Repeat the procedure if necessary.
CAUTION!
With solar thermal systems, fill the system with mixtures prepared for that
application. The circulator can not be used to mix the fluids in the system.
Do not touch the fluid or the circulator when the temperature is greater
than 60 °C. Hazard of scalding by simple contact.
Settings concerning circulator performance
With the help of the selector potentiometer (fig. M), set the performance of the
circulator (head) according to the needs.
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Circulators with permanent magnets can not be driven in
speed by means of phase control of the supply voltage.
Circulators driven by an electronic frequency converter have a
current peak at each activation (inrush current) greater than
traditional circulators (asynchronous). Askoll recommends to
Absolutely avoid dry operation. Start the circulator only after
having completely filled the plant.
the plant cannot be drained by using the circulator.