Zavedení
This instruction manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your VEVOR 3 CFM 1/4 HP Single Stage HVAC Vacuum Pump. Please read this manual thoroughly before using the product and retain it for future reference. This vacuum pump is designed for various applications including HVAC system evacuation, refrigeration, and automotive air conditioning maintenance.

Figure 1: VEVOR 3 CFM Vacuum Pump with Manifold Gauge Kit in typical applications.
Důležité bezpečnostní pokyny
Při používání elektrických spotřebičů vždy dodržujte základní bezpečnostní opatření, abyste snížili riziko požáru, úrazu elektrickým proudem a zranění osob.
- Přečtěte si všechny pokyny: Familiarize yourself with the product's operation and safety guidelines.
- Elektrická bezpečnost: Ujistěte se, že napájecí zdroj odpovídá objtage specified on the pump's label. Do not operate the pump with a damaged cord or plug. Avoid using extension cords unless absolutely necessary and ensure they are rated for the pump's power requirements.
- Větrání: Operate the pump in a well-ventilated area to prevent overheating and accumulation of refrigerant vapors.
- Osobní ochranné prostředky (OOP): Always wear safety glasses and gloves when handling refrigerants or operating the vacuum pump.
- Manipulace s chladivem: Be aware of the specific safety requirements for the refrigerants you are working with. Some refrigerants are flammable or toxic.
- Hladina oleje: Regularly check the oil level and ensure it is within the specified range before and during operation. Operating without sufficient oil can damage the pump.
- Horké povrchy: The pump motor and housing may become hot during operation. Avoid direct contact.
- Stabilita: Place the pump on a stable, level surface to prevent tipping.
- Děti a domácí mazlíčci: Udržujte děti a domácí zvířata mimo provozní oblast.
Obsah balení
Verify that all items are present and undamaged upon unpacking. If any parts are missing or damaged, contact VEVOR customer service.
- 1 x VEVOR 3 CFM 1/4 HP Single Stage Vakuové čerpadlo
- 1 x Multifunctional Manifold Gauge Set
- 3 x Color-Coded Hoses (Yellow, Blue, Red)
- 2 x Adjustable Quick Couplers
- 1 x Bottle of Vacuum Pump Oil (Note: Oil may be shipped separately or not included depending on region/regulations)
- 1 x Návod k použití

Figure 2: Included components of the VEVOR Vacuum Pump Kit.
Vlastnosti produktu
The VEVOR 3 CFM 1/4 HP Single Stage HVAC Vacuum Pump is engineered for reliable performance and durability.
- Vysoká účinnost: Features a 3 CFM (85 L/min) flow rate and 1/4 HP motor for quick and effective vacuuming.
- Odolná konstrukce: Equipped with a robust die-cast aluminum housing and a strong copper motor for extended service life.
- Stabilní provoz: Four rubber feet provide enhanced stability and minimize vibration during use.
- Anti-Oil Reflux Design: Prevents oil from flowing back into the system, protecting connected equipment.
- Efektivní odvod tepla: Enlarged heat-sink holes and a cooling fan ensure rapid heat dissipation, preventing overheating.
- Oil Sight Window: A clear oil sight window allows for easy monitoring of oil levels and quality.
- Multifunctional Manifold Gauge: Includes a two-valve manifold gauge set with clear pressure readings for precise system monitoring.
- Color-Coded Hoses: Three durable, color-coded hoses (yellow, blue, red) with SAE 1/4" (6.35 mm) brass fittings for easy identification and connection.

Figure 3: Key features of the VEVOR Vacuum Pump, including copper motor and aluminum housing.

Figure 4: Oil sight window and heat dissipation features.
Specifikace
| Parametr | Hodnota |
|---|---|
| Model | RS-1 |
| svtage | 220 V 50 Hz |
| Flow Rate (Air Displacement) | 3 CFM (85 l/min) |
| Moc | 1 / 4 HP |
| Maximální vakuum | 5 Pa |
| Stage | 1 |
| Kapacita oleje | 220 ml |
| Rozdělovač | 2-cestný |
| Velikost hadicové přípojky | SAE 1/4" (6.35 mm) |
| High Pressure (Manifold Gauge) | 0~800 PSI |
| Low Pressure (Manifold Gauge) | 0~500 PSI |
| Max Working Pressure (Hose) | 800 PSI |
| Tlak prasknutí hadice | 4000 PSI |
| Rozměry produktu (D x Š x V) | 10.9 x 24.4 x 21.1 cm (4.3 x 9.6 x 8.3 palce) |
| Hmotnost produktu | 7.32 kg (16.14 lb) |

Obrázek 5: Rozměry produktu a typické aplikace.
Nastavení
Follow these steps for initial setup before operating the vacuum pump.
- Vybalte a zkontrolujte: Opatrně vyjměte všechny součásti z obalu. Zkontrolujte, zda nedošlo k poškození při přepravě.
- Doplnění oleje do vakuového čerpadla:
- Locate the oil fill cap on top of the pump.
- Sejměte víčko a pomalu nalijte dodaný olej z vakuového čerpadla do nádržky.
- Monitor the oil level through the oil sight window. Fill until the oil level is between the 'MIN' and 'MAX' marks. Do not overfill.
- Bezpečně nasaďte uzávěr plnicího otvoru oleje.

Figure 6: Oil sight window with MIN/MAX indicators.
- Umístění: Place the vacuum pump on a firm, level, and dry surface. Ensure adequate ventilation around the pump.
- Elektrické připojení: Connect the power cord to a grounded electrical outlet that matches the pump's voltage požadavky.
Návod k obsluze
This section outlines the general procedure for using the vacuum pump with the manifold gauge set for HVAC/refrigeration systems. Always refer to the specific service manual for the equipment you are working on.
- Připravte systém: Ensure the HVAC/refrigeration system is depressurized and all service ports are accessible.
- Connect Manifold Gauge:
- Connect the blue hose (low pressure) to the low-side service port of the system.
- Connect the red hose (high pressure) to the high-side service port of the system.
- Connect the yellow hose (service hose) from the manifold gauge's central port to the vacuum pump's inlet port.

Figure 7: Manifold gauge connections diagram.

Figure 8: Color-coded hoses connected to an HVAC unit.
- Open Manifold Valves: Fully open both the high-side and low-side valves on the manifold gauge set.
- Spuštění vakuové pumpy: Zapněte vakuové čerpadlo. Čerpadlo začne ze systému odčerpávat vzduch a vlhkost.
- Monitorovací vakuum: Observe the low-pressure gauge on the manifold. The needle should drop into the vacuum range. Continue running the pump until the desired vacuum level is achieved, typically for a specified duration based on system size and conditions.
- Isolate Pump: Once the desired vacuum is reached, close both the high-side and low-side valves on the manifold gauge set. Then, turn off the vacuum pump.
- Vacuum Hold Test: Allow the system to sit under vacuum for a period (e.g., 15-30 minutes) and monitor the gauge. If the vacuum holds steady, the system is leak-free. If the pressure rises, there may be a leak that needs to be addressed.
- Odpojit: After a successful vacuum hold test, slowly open the manifold valves to release the vacuum from the hoses, then disconnect the hoses from the system and the pump.
Údržba
Regular maintenance ensures optimal performance and extends the lifespan of your vacuum pump.
- Výměna oleje: Vacuum pump oil should be changed regularly, especially if it appears cloudy, discolored, or contaminated.
- To Change Oil:
- Ensure the pump is off and cool.
- Place a suitable container under the oil drain plug (usually located at the bottom or side of the pump).
- Remove the oil drain plug and the oil fill cap to allow the old oil to drain completely.
- Replace the drain plug and refill with new, clean vacuum pump oil as described in the 'Setup' section.
- Čištění: Keep the exterior of the pump clean and free of dust and debris. Ensure the cooling fins and fan area are clear for proper airflow.
- Skladování: When not in use, store the pump in a dry, clean environment. Ensure the oil is at the correct level before storing for extended periods.
Odstraňování problémů
V této části naleznete běžné problémy a jejich možná řešení.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Čerpadlo se nespustí | Žádné napájení Poškozený napájecí kabel/zástrčka Přetížení motoru | Zkontrolujte připojení napájení a zásuvku Zkontrolujte kabel/zástrčku, zda není poškozená, v případě potřeby ji vyměňte Allow motor to cool; check for obstructions |
| Pump runs but does not pull vacuum | Nízká hladina oleje Znečištěný olej Leaky connections System leak | Add oil to correct level Vyměňte olej Utáhněte všechny hadicové spoje Perform leak detection on the system |
| Čerpadlo je hlučné nebo nadměrně vibruje | Nízká hladina oleje Znečištěný olej Nestabilní povrch Vnitřní poškození | Zkontrolujte a přidejte olej Vyměňte olej Place pump on a stable, level surface Kontaktujte podporu VEVORu |
| Oil appears milky or cloudy | Znečištění vlhkostí | Change oil immediately; ensure system is dry before vacuuming |
Záruka a podpora
Výrobky VEVOR jsou navrženy pro odolnost a výkon. Konkrétní informace o záruce naleznete v záruční kartě dodané s vaším produktem nebo navštivte oficiální webové stránky VEVOR. website. If you encounter any issues or require technical assistance, please contact VEVOR customer support through their official channels. Provide your product model number (RS-1) and purchase details for efficient service.

Figure 9: Extensive applications of the VEVOR Vacuum Pump.