SUND Overview
SUND is the Nastec 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 and simplified installation thanks to the electronics integrated into the motor and smartphone control.
- Quick return on investment.
- Lengthening of system life and greater system reliability.
- Extremely low noise operation.
- Installation in humid and dusty environments thanks to IP55 (NEMA 4) protection rating.
Quick and simplified installation and extremely low noise operation
- 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.
Energy Saving
- Energy saving thanks to photovoltaic energy supply and variable-speed operation.
- Return on investment.
Lengthening of system life and greater system reliability
The average speed of a pump driven by an inverter is inevitably lower than a comparable fixed speed pump. This reduces component wear such as bearings, bushings, seals, etc.
The inverter also starts and stops the pump gently, reducing the mechanical stress on the shaft and impellers and avoiding water hammer. Hardware and software protections prevent any damage to the pump and the system.
At lower speeds, the system will also generate less noise.
Built-in protections against:
- Overvoltage and undervoltage.
- Overcurrent and no load.
- Dry running.
- Overtemperature.
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
EMC compatibility for residential environment:
- Integrated PFC (P.F. 1) to meet EN61000-3-2
- Integrated input filter for Category C1 (EN61800-3), Class B (EN55011)
MPPT: always the maximum power available.
Based on the varying conditions of solar irradiation and temperature, MPPT (Maximum Power Point Tracking) maximises the electrical power drawn from the panels and therefore the amount of water pumped.
The greater the solar irradiation the faster the pump’s rotation speed, and consequently water flow increases.
When solar irradiation decreases (due to clouds or the different times of day), the pump reduces frequency and therefore the flow, but it continues to provide water until the irradation falls below a minimum level necessary to ensure operation.
SUND Technical Specifications
General specifications
