Nastec-SUND-1
Hydraulic part: High-performance hydraulic part with rapid extraction inlet pre-filter. Carbon-ceramic mechanical seal. Pump body, impeller and diffuser in reinforced technopolymer. Transparent polycarbonate filter cover. Guaranteed operation with sea water (available on request). Inlet and outlet connections to attach for PVC tubes with an external diameter of 50 mm.
Integrated inverter: Inverter attached to the motor, exclusively in aluminium, and with independent ventilation to guarantee excellent thermal performance.
Synchronous three-phase motor with highly efficient permanent magnets.

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.
Nastec-SUND-2

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.
Nastec-SUND-1_600

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
SUND-illustration-2
SUND-illustration

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)
Nastec-Sund-electronics

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.

MPPT

SUND Technical Specifications

Model V in DC V in AC * P1 max Net weight Packaging
dimensions
Total weight
VDC VAC W Kg mm Kg
SUND 50 90 – 400 1×90 – 265 800 10,7 535x240x350(h) 11,4

General specifications

Rated frequency 50 – 60 Hz (+/- 2%)
Max liquid temperature 40°C (104°F)
Max ambient temperature -10 – 50°C (-14 – 122°F)
Max altitude at rated current 1000 m
Protection degree IP66
Max current pressure 3 bar
Max aspiration height 2,5m
Motor insulation F
Settable digital outputs N.O. or N.C. 1. Motor run signal2. Alarm signal
Analog inputs (10 or 15 VDC)

 1. 4-20 mA2. 4-20 mA

3. 0 – 10 VDC

4. 0 – 10 VDC

Digital inputs 4 digital inputs, configurable N.O. or N.C. for motor run/stop
Communication RS485 MODBUS RTU, Bluetooth® SMART (4.0))
Nastec-SUND-dimensions