Nastec SUND Series, Инструкция по установке и эксплуатации

Страница: 3 / 24

3
1. Introduction
SUND is a range of solar pumps for the circulation and filtering of pool water. It guarantees:

Energy saving thanks to photovoltaic energy supply and variable-speed operation.

Quick return on investment.

Lengthening of system life and greater system reliability.

Quick and simplified installation thanks to the electronics integrated into the motor and smartphone control.

Extremely low noise operation.

Installation in humid and dusty environments thanks to IP55 (NEMA 4) protection rating.
In the application with photovoltaic panels, the MPPT algorithm maximizes, for various conditions of irradiation and
temperature, the electric power obtained from the panels thus the amount of pumped water. Pump speed is adjusted in
relation to solar irradiation. When solar irradiation increases, pump will run faster thus pumping more water. When solar
irradiation decreases (clouds moving or early/late hours of the day) pump will reduce its frequency and so delivery but it
continues pumping till solar irradiation reaches the minimum value necessary for working.
SUND is powered by solar panels or, if necessary, by mains supply. In this way, the pump’s operation is guaranteed at any time
of day. It is also possible to meet demand peaks through mains power in order to avoid the over-dimensioning of the
photovoltaic system.
When installed, the HMA accessory automatically manages the switch from one source of energy to the other based on multiple
logics that the user can select:

radiation level

time of day

achievement of the daily flow requirement

remote control via

digital input.