Circulation Pumps - Olimpia splendid Sherpa Aquadue S2 E Small Instructions Pour L'installation, L'emploi Et L'entretien

3.2.1 - Circulation pumps

The pumps are controlled through PWM, so as to set the fixed number of revolutions for pump
operation.
Sherpa Aquadue is equipped with one high-efficiency
circulation pump.
The pumps with permanent magnet wet rotor have an
electronic adjustment module with integrated frequency
converter.
On the adjustment module is present a control knob.
The DHW pump is equipped with a LED indicator to display
the operating status of the pump.
All the functions can be set, activated or deactivated with
the control knob.
The circulator of the DHW circuit is set factory set at a con-
stant number of revolutions I,II and III. It also may work in
the modes with variable pressure difference and constant
pressure difference.
• Check that load losses of the system ensure the required water flow rate
(see par. 4.2).
• If higher prevalences should be necessary due to high load losses of the
system, it'll be necessary to add a hydraulic separator and an external
reactivation pump.
• Check if the system has the minimum required content of water to ensure
good operation of the system; if it is insufficient, add such accumulation
so that the required content is reached.
• The water distribution pipelines will have to be insulated adequately with
polyethylene foam or similar materials. The non-return valves, the bends
and the various fittings shall also be insulated adequately.
• To avoid air pockets inside the circuit, insert the automatic or manual vent
devices in all the points (highest pipelines, siphons etc.) where air may
accumulate.
To set the speed pump, please see paragraph 5.8.9
(fig.18-18a-18b)
EN - 23
AQUADUE SMALL