Device Protection Features; Hydraulic Connection - Italtecnica Sirio Entry 230 Instrucciones Para El Uso

DEVICE PROTECTION FEATURES

√ Dry running
√ Under-voltage on power line (activation at approx. 200 Volt)
√ Overvoltage on power line (activation at approx. 260 Volt)
√ Output terminal short circuit
√ Motor output current control
√ Internal overheating in inverter
√ Significant leakage with continuous motor pump restarts
INSTALLATION

HYDRAULIC CONNECTION:

The Sirio Entry must be installed on the pump delivery side, either upright or horizontally and
respecting the flow direction shown by the arrow on the cover. The pump outlet water flows
through the device before being distributed to the various appliances connected.
The water that enters the Sirio Entry unit must not contain any impurities and/or other substances
that could jam up the check valve fitted inside it. To reduce this risk as much as possible, it is
advisable to fit special filters on the intake side of the pump.
Install a small expansion tank (1-2 litres) after the Sirio Entry, to limit restarts caused by any
small leakages which are common in most systems. The pre-charge value of the tank must be
suitable for the pressure values set. This will also help to keep the operation constant in
applications where water requirements are greater (e.g. for dishwashers, toilet flushing systems,
etc.).
On no account must a check valve be fitted between the Sirio Entry and the motor pump or
between the device itself and the user appliances, as it could cause device malfunctions.
A check valve can be fitted on the motor pump intake pipe, though, to prevent it draining when the
pump stops.
It is recommended that you do not install the equipment in shafts or watertight casing where heavy
condensation can form.
CAUTION: when the pump stops, the conduits are still pressured so a cock must be opened
to bleed the system before any work is carried out.
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