Circulation Pumps - Olimpia splendid SHERPA TOWER S2 E 4 Instrucciones Para La Instalación, Uso Y Mantenimiento

3.2.1 - Circulation pumps

The pumps are controlled through PWM, so as
to set the fixed number of revolutions for pump
operation.
Sherpa Tower is equipped with one high-efficiency circu-
lation 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.
• 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)
EN - 23
TOWER SMALL