1. Důležité bezpečnostní informace
Please read and understand all safety instructions before installing or operating this pump. Failure to follow these instructions may result in electric shock, fire, serious injury, or property damage.
- Elektrická bezpečnost: Ensure the power supply is disconnected before performing any installation or maintenance. Connect the pump only to a 12V DC power source. Use appropriate fuse protection as specified (15-18 amp doporučeno).
- Bezpečnost vody: This pump is designed for fresh water only. Do not use with flammable liquids, corrosive chemicals, or water above 110°F (43°C).
- Instalace: Mount the pump in a dry, well-ventilated area. Ensure all connections are secure and leak-free.
- Operace: Do not run the pump dry for extended periods. The pump features built-in thermal overload protection to prevent motor damage.
2. Konec produktuview
The Kohree 12V DC Fresh Water Pump (Model HY1733) is a self-priming diaphragm pump designed for reliable water transfer in various applications. It delivers a flow rate of 3.5 gallons per minute (GPM) with a pressure switch set to 55 PSI, making it suitable for RVs, campers, marine vessels, yachts, and garden irrigation systems.

Image: The Kohree RV Water Pump shown with various included accessories, such as hose barb fittings, a water strainer, and Teflon tape.
Klíčové vlastnosti:
- High Flow & Pressure: 3.5 GPM flow rate and 55 PSI pressure for efficient water delivery.
- Samonasávání: Primes up to 3 meters (approximately 10 feet), simplifying initial setup.
- Run Dry Protection: Can run dry for short periods without damage, preventing motor burnout.
- Ochrana proti tepelnému přetížení: Automatically shuts off the motor if it overheats, ensuring safety and longevity.
- Provoz s nízkou hlučností: Engineered for reduced operational noise.
- Odolná konstrukce: Features an iron base for stability and quality materials for reliability.

Image: A diagram illustrating the pump's low noise level, comparing it to common sounds like whispering and a car refrigerator.
3. Specifikace
| Specifikace | Hodnota |
|---|---|
| Číslo modelu | HY1733 |
| svtage | 12 V DC |
| Maximální průtok | 3.5 galonů za minutu (GPM) |
| Nastavení tlakového spínače | 55 PSI |
| Maximální výška zdvihu | 124 stop |
| Aktuální losování | 7.0 Amps (Max) |
| Doporučená pojistka | 15-18 Amps |
| Materiál | Copper, Nylon/Polypropylene |
| Rozměry produktu (D x Š x V) | 10.98 cm x 5.63 cm x 5.08 cm |
| Hmotnost položky | 10.2 unce (cca 290 gramů) |

Image: Visual representation of the pump's basic parameters: 12V operating voltage, 3.5 GPM flow rate, and 124 feet maximum lift.

Image: Detailed product dimensions of the Kohree water pump, including overall length, width, and height, and inlet/outlet sizes.

Image: An illustration detailing the quality materials used in the pump's construction, such as Nylon/Polypropylene shell, EPDM/Viton sealing, copper motor, and anti-vibration rubber pump bracket.
4. Instalace
Proper installation is crucial for optimal performance and longevity of your water pump.
4.1 Kontroly před instalací
- Ensure the mounting surface is solid and stable.
- Verify that the power source is 12V DC and can supply the required amperage (7.0 Amps).
- Confirm you have all necessary plumbing fittings and hoses.
4.2 Montáž čerpadla
Mount the pump in a location that is easily accessible for maintenance, protected from freezing temperatures, and as close as possible to the water source. Use the integrated mounting feet to secure the pump to a flat surface.
4.3 Vodovodní připojení
- Vstupní připojení: Connect the water supply line (from the freshwater tank) to the pump's inlet port. It is recommended to install a water strainer/filter on the inlet side to prevent debris from entering the pump.
- Výstupní připojení: Connect the discharge line (to the RV/marine plumbing system) to the pump's outlet port.
- Kování: Use the provided hose barb fittings for secure connections. Apply Teflon tape to threaded connections to ensure a watertight seal and prevent leaks.

Image: A schematic diagram illustrating a typical water pump installation in a yacht, showing connections to the freshwater tank, filter, accumulator tank, water heater, faucet, and shower.

Image: A schematic diagram illustrating a typical water pump installation within an RV's water system, connecting to various fixtures like sinks, toilets, and showers.

Obrázek: Detail view of the hose barb fittings provided for connecting water lines to the pump.

Image: A roll of Teflon tape, used for sealing threaded pipe connections to prevent leaks.
4.4 Elektrické připojení
- Connect the positive (+) wire from the pump to the positive terminal of your 12V DC power source, ensuring an in-line fuse (15-18 amp) je nainstalován.
- Connect the negative (-) wire from the pump to the negative terminal of your 12V DC power source.
- Ujistěte se, že všechna elektrická připojení jsou bezpečná a chráněna před vlhkostí.
5. Provoz
Once installed, operating the Kohree water pump is straightforward.
- Základní nátěr: Ensure the freshwater tank has water. Open a faucet in your system to allow air to escape. Turn on the pump's power. The pump will self-prime, drawing water and expelling air until a steady flow is achieved. Close the faucet once water flows consistently.
- Automatický provoz: The pump features a built-in pressure switch. When a faucet is opened, the pressure drops, and the pump automatically turns on. When the faucet is closed, the pressure builds up, and the pump automatically turns off.
- Run Dry Protection: The pump is designed to run dry for a short period without damage. However, it is best practice to ensure a water supply is always available to prevent unnecessary wear.

Image: A visual comparison showing low water flow before the pump and significantly improved, high water flow after the pump is activated, demonstrating its effectiveness.
6. Údržba
Pravidelná údržba pomáhá zajistit dlouhou životnost a efektivní provoz vašeho čerpadla.
6.1 Cleaning the Water Strainer
The inlet water strainer should be inspected and cleaned periodically, especially if you notice reduced water flow. To clean:
- Odpojte napájení čerpadla.
- Unscrew the clear housing of the strainer.
- Remove the mesh filter and rinse it thoroughly under clean water.
- Reassemble the strainer, ensuring a tight seal.

Obrázek: Rozložený view of the water strainer, showing its main body, mesh filter, and clear housing, indicating how to disassemble for cleaning.
6.2 Pressure Switch Adjustment
The pressure switch is factory-set to 55 PSI. If minor adjustments are needed, consult a qualified technician. Improper adjustment can lead to pump malfunction or damage.

Obrázek: Detailní záběr view of the pressure switch on the pump, highlighting the adjustment screw for fine-tuning pressure settings.
6.3 Zazimování
In freezing conditions, the pump and plumbing system must be winterized to prevent damage. This typically involves draining all water from the system or flushing with RV-specific antifreeze. Refer to your RV or marine vessel's specific winterization guidelines.
7. Řešení problémů
Tato část se zabývá běžnými problémy, se kterými se můžete setkat u svého vodního čerpadla.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Čerpadlo neběží | No power, blown fuse, loose wiring | Check power supply, replace fuse, tighten connections. |
| No water flow / Low flow | No water in tank, clogged strainer, air in system, kinked hose | Fill tank, clean strainer, prime pump, check hoses. |
| Čerpadlo běží nepřetržitě | Leak in system, faulty pressure switch, air in system | Check for leaks, inspect pressure switch, re-prime system. |
| Pump cycles on and off rapidly | Small leak, restricted flow, low voltage | Check for minor leaks, ensure clear flow path, verify voltage. |
8. Záruka a zákaznická podpora
The Kohree 12V water pump is certified to CE standards and comes with a one-year warranty. If you experience any quality issues or are not satisfied with your purchase, please contact Kohree customer service for assistance.
For customer support, please refer to the contact information provided with your purchase or visit the official Kohree webmísto.
9. Video zdroje
No official product videos from the seller were available for embedding based on the provided data. Please refer to the manufacturer's webwebu nebo stránky produktu s dostupnými video zdroji.





