In modern households, consistent water pressure and intelligent control have become key to a comfortable living experience.

Our Permanent Magnet Variable Frequency Booster Pump not only provides high-efficiency, energy-saving performance, but also supports RS485 communication, enabling multiple pumps to work either independently or in coordination.

RS485 Communication: When Pumps Talk to Each Other

RS485 is an industry-grade communication standard known for its strong anti-interference capability, long transmission distance, and high reliability.
With RS485, multiple pumps can be connected into a smart control network that allows:

• Independent Operation: Each pump starts or stops automatically based on real-time water demand.
• Coordinated Operation: Multiple pumps share the workload intelligently, switching on or off dynamically for better efficiency and extended lifespan.

This communication method ensures stable water pressure while significantly reducing energy consumption — making your water system both smart and sustainable.

Smart Control Meets Energy Efficiency

Through the RS485 network, the control system can monitor each pump’s status (pressure, current, speed, and faults) and automatically optimize operation. For example:

• When demand increases, additional pumps join automatically.
• During off-peak hours, the system switches to single-pump mode for energy savings.
• Remote monitoring and parameter adjustments are supported, enabling intelligent water management.

Designed for Diverse Applications

Whether for residential homes, villas, apartment buildings, or small-scale centralized water systems, our RS485-enabled booster pump offers an efficient and stable water-supply solution.

Key Benefits at a Glance

• Energy-saving Permanent Magnet Motor
• Precise Frequency Conversion Control
• Flexible Independent or Coordinated Operation
• RS485 Communication Interface (Modbus RTU Compatible)
• Easy Integration with Smart Home or IoT Systems

Typical Use Cases

• Constant water pressure for multi-story homes or villas
• Hotel, hostel, or apartment complex water systems
• Rooftop tank or variable-frequency constant-pressure retrofits
• Small commercial applications such as cafés or gyms

Technical Insight: Why RS485 Makes the Difference

• Stable Bus Communication: Daisy-chain connection ensures reliability and scalability (up to 16 pumps).
• Flexible Parameter Control: Supports dynamic setting of target pressure, pump speed, and standby rotation.
• Fail-safe Design: Even if the communication bus is disconnected, each pump continues operating based on its local pressure settings.
• IoT Ready: RS485 (Modbus RTU) can be bridged to Ethernet, Wi-Fi, or 4G gateways for remote data collection and control.

Recommended Wiring Tips

• Use shielded twisted-pair cables (e.g., RVSP) for the A+ / B– signal lines.
• Adopt bus topology instead of star connections; add a 120 Ω terminal resistor at both ends.
• Connect the cable shield to ground at one end only to avoid interference.

Our permanent magnet variable frequency booster pumps are not just about moving water — they are about connecting intelligence, stability, and efficiency.
By integrating RS485 communication, every pump becomes part of a coordinated ecosystem that adapts to your needs, saves energy, and guarantees consistent water pressure around the clock.

Empower your water system with smart communication — choose EIIMAN booster pumps for a connected future.