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The NHW-E 120 Home Waterworks is a robust and versatile pumping system designed for various domestic and garden water supply applications. This device is engineered to provide reliable water pressure for irrigation, garden watering, and service water supply, drawing water from diverse sources such as ponds, streams, rainwater butts, rainwater cisterns, and wells.
The NHW-E 120 operates as a self-priming jet pump with an integrated pressure tank, ensuring consistent water pressure. It features a water drain screw (1) for easy emptying, a level indicator (2) to monitor water levels, and a pressure gauge (14) for real-time pressure readings. The suction connector (3) and pressure connector (5, 8) facilitate the connection of intake and discharge lines. A coarse filter screw (4) and coarse filter (12) with a non-return valve (13) are integrated into the system to protect the pump from solid foreign bodies and ensure efficient priming. The ventilation screw (6) allows for air release during priming, while a carry handle (7) ensures easy transport. The power switch (9) controls the operation of the pump. A dedicated wrench (10) is provided for the coarse filter screw. The unit also includes an air valve for precharge pressure (16) with a protective cover (15).
The NHW-E 120 is designed for pumping clear water (fresh water), rainwater, or light suds/service water. It is crucial that the maximum temperature of the fluid does not exceed +35°C during continuous operation. The device is not suitable for pumping flammable, gassing, or explosive fluids, nor aggressive liquids (acids, alkalis, silo seepage, etc.) or liquids with abrasive substances (sand). It is explicitly not designed for conveying drinking water.
Before starting, users must ensure the appliance is placed on a solid, level surface. The intake line, preferably a reinforced plastic hose of at least 19 mm (¾”), should be securely fastened to the suction connection. A connection adapter (11) is provided to reduce the thread of the suction connection if needed. The intake line should be equipped with an intake valve or a non-return valve (13) and positioned to rise from the water withdrawal point to the equipment, avoiding any sections higher than the pump itself to prevent airlocks. Both intake and discharge lines must be installed without exerting mechanical pressure on the unit.
Priming the pump involves removing the ventilation screw (6), unscrewing the coarse filter screw (4) with the provided wrench (10), and removing the coarse filter (12) with the non-return valve (13). The pump housing can then be filled with water through the coarse filter screw opening, which accelerates the priming process. During priming, all shut-off mechanisms in the pressure line (spray nozzles, valves, etc.) must be fully open to allow air to escape. The appliance connects to a 220-240 V ~ 50 Hz earthed socket-outlet with a minimum 10 Ampere fuse. An integrated thermostat protects the motor from overloading, automatically switching off the pump if it overheats and restarting it after cooling. The pump automatically cuts in at approximately 0.15 MPa (1.5 bar) and cuts out at 0.3 MPa (3 bar).
The NHW-E 120 is largely maintenance-free, but regular checks and care are recommended for a long service life. Before any maintenance, the appliance must be disconnected from the power supply by unplugging it.
In case of a damaged power cable, it must be replaced by the manufacturer, its after-sales service, or similarly qualified personnel to avoid hazards. For spare parts, users should provide the machine type, article number, identification number, and the required spare part number.
General| Brand | Neptun |
|---|---|
| Model | NHW-E 120 |
| Category | Water Pump |
| Language | English |
