NERA 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.
NERA 1.3. Nastec NSC solar calculator To correctly size the solar pumping system, the Nastec NSC solar calculator is available free of charge on the site solar.nastec.eu. 2. Safety 2.1. Symbols This symbol indicates a TIP or recommendation. NOTE This symbol indicates a NOTE or an indication or concept to be emphasised.
NERA 2.2. Qualified personnel WARNING The installation, use and maintenance of the product are strictly for qualified personnel who have undergone appropriate training. Any use by unqualified personnel must be carried out under the approval, responsibility, and close monitoring of the latter. 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.
NERA DANGER The device, previously in stand-by condition, may suddenly start up following the reset of an alarm or changed system conditions. This may result in serious mechanical and electrical danger to the operator who, upon seeing the device stopped, may have intervened on it, on the load or on the system in which it is installed.
• Wait for the result from the Nastec technical support service. The outcome may envisage the following: • Absence of warranty based on the information received. A quotation for repair or spare parts may be made upon request.
If the warranty is applicable, Nastec will repair the device. Nastec is willing to refurbish the product upon offer. In the absence of a warranty, Nastec will make an offer to repair and/or refurbish the device. After 60 days from the offer, if no response is received from the buyer, Nastec will scrap the product upon notice.
NERA 3.6. Disposal Devices marked with this symbol cannot be disposed of in household waste but must be disposed of at appropriate waste drop-off centres. It is recommended to contact the Waste Electrical and Electronic Equipment drop-off centres (WEEE) in the area. If not disposed of properly, the product may have potential harmful effects on the environment and on human health due to certain substances present within.
In particular, store the pump in a place with a minimum temperature that is not below 4 °C (40 °F). For more information contact the dealer or technical support at service@nastec.eu or by opening a support ticket on the portal service.nastec.eu 5.
20% compared to the absorbed electrical power. For a correct sizing of the system, use the solar calculator available free of charge by connecting to the site solar.nastec.eu Figure 1. NERA 01/02H 131 ft...
NERA 6.1. Installation environment WARNING The environmental specifications stated in the technical data of the product must be strictly complied with. 6.2. Mechanical assembly of pump and motor Pump and motor are usually supplied already assembled. However, it may be necessary to assemble or disassem- ble the two parts for maintenance purposes.
NERA Gently insert the pump on the helical rotor, first wetting the surface with plenty of water to facilitate insertion. WARNING Excessive effort in inserting the pump can irreparably bend the flexible shaft compromising the use of the pump itself. Screw the four nuts with the relative split washers ("grower"...
NERA 6.3. Power connector The motor is supplied already equipped with a power connector. However, it may be necessary to remove and reconnect the power connector during maintenance. WARNING It is recommended to carefully read and strictly follow the instructions given in order to guarantee correct operation and reliability of the product over time.
NERA WARNING When radiance falls below the minimum necessary to ensure the presence of flow, the engine is no longer sufficiently cooled . The integrated electronics on-board the motor can protect the motor against excessive and sporadic overheating. However, prolonged operation without flow (no cooling) may cause premature deterioration of the mechanical and electronic parts of the pump and motor as well as damage to the pumping system.
NERA 6.6. Position of the pump The pump can be installed both vertically and horizontally, but the delivery must never be below the horizontal plane. Furthermore, in order to avoid counter thrust, a counter pressure of at least 10% of the maximum pump pressure must always be guaranteed.
NERA CAUTION Secure the pump in the well by means of the special steel safety rope connected to the eyelet in the pump delivery. 6.9. The level sensor The detection of the lack of water is carried out by the electronics integrated on the motor by measuring the impedance variation between the level electrode and the earthed pump body.
NERA 7. Electrical installation WARNING Read the safety chapter carefully before continuing. 7.1. Grounding DANGER Make sure that the device and the loads connected to it are properly grounded with the appropriate connection terminals before commissioning. Ensure that the grounding system is compliant and refer to local regulations for grounding devices. Each load must be fitted with its own earthing cable, the length of which must be as short as possible.
NERA • A black (negative) cable and a red (positive) cable for connecting the power supply. • Yellow/green protective ground connection. The motor is supplied with 2 m of flat cable which must be suitably spliced with the round cable of suitable length and cross-section.
NERA DC: - Color Comments Black WARNING Respect the polarity of the connections. DC Power Supply Yellow/ P.E. Green WARNING Failure to comply with the instructions may lead to loss of warranty. 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.
NERA 8.2. Powering DANGER Before supplying power to the device, make sure you have read, understood and implemented all the safety, mechanical, and electrical installation instructions. At the end, it shall be possible to: • power up the device. • wait for the water to come out of the delivery pipe. 9.
NERA 10. EC Declaration of Conformity The manufacturer hereby: Nastec srl Via della Tecnica, 8, 36048, Barbarano Mossano, Vicenza, Italy declares under its own responsibility that the product: NERA complies with the following directives: • 2011/65 / EU - RoHS Directive •...
NERA 11. UK Declaration of Conformity The manufacturer hereby: Nastec srl Via della Tecnica, 8, 36048, Barbarano Mossano, Vicenza, Italy declares, under its own responsibility, that the product: NERA complies with the following directives: • UK SI 2012 No. 3032. Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (RoHS2) •...
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