1. Introduction
1.1. Purpose of the manual
The purpose of this manual is to provide users with detailed information on the installation, operation, and mainte-
nance of the product, with special regard to safety regulations.
WARNING
Read the manual carefully before installing and using the product.
WARNING
Failure to follow the instructions may result in damage to the product, the system in which it is
installed and, in the worst cases, damage to property or persons with even fatal consequences.
NOTE
Store the manual in a protected and easily accessible place next to the installation location for
possible consultation. A digital copy of this manual can be downloaded from the manufacturer's
website or via the QR code shown on the product itself.
The complete installation, use and maintenance manual of the product, constantly updated in its contents, can be
downloaded by scanning the QR code shown in the product with the smartphone camera and following the relative
link.
1.2. Product overview
SUND Range of solar pumps for the circulation and filtering of swimming pool water. It guarantees:
• Energy saving thanks to photovoltaic power supply and variable speed operation.
• Quick return on investment.
• Extended life of the system and greater reliability.
• Quick and simplified installation thanks to the electronics integrated on-board the motor and control via smart-
phone.
• Extremely silent operation.
• Installation in humid and dusty environments thanks to the IP55 protection rating (NEMA 4).
In the application with photovoltaic panels, the MPPT (Maximum Power Point Tracking: tracking of the maximum
power point) function allows maximizing the electrical power obtained from the panel or the quantity of water
pumped for different irradiation and temperature conditions. When irradiation increases, the pump increases its
running speed and the water flow increases as a consequence. When irradiation decreases (at the passage of
clouds or at different times of the day), the pump reduces the frequency and consequently the flow rate, but
continues to supply water until irradiation falls below the minimum necessary to guarantee operation.
SUND it is powered by photovoltaic panels or, if necessary, by the mains. In this way, the operation of the pump
is guaranteed at any time of day. It is also possible to satisfy the demand peaks through mains power supply thus
avoid the oversizing of the photovoltaic system.
When installed, accessory HMA automatically manages the switching from one energy source to another based on
multiple logics that can be selected by the user:
SUND
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