Product Overview

W191 is a compact intelligent controller for water pump applications. It is designed for 220V input systems and supports pressure-based pump operation, multi-pump linkage and multiple operating modes.

The series is especially suitable for small pump systems where compact dimensions, simple setup and automatic pressure control are important.

Key Selling Points

• Compact 2.2kW pump controller with 10A rated output current.
• Supports three-phase motor output terminals U/V/W and single-phase motor output via V/W.
• Supports up to two auxiliary pumps, allowing up to three pumps in linkage operation.
• Operating modes include upstream pressure boosting, downstream pressure boosting, water tower supplement, manual mode and air blower mode.
• The keypad supports pressure setting, parameter setting, monitoring display switching and fault reset.
• Fault alarms include low pressure, high pressure, low water level and pressure transducer fault.

Core Parameters

Model Coverage

Interface and Control

• L and N are single-phase AC input terminals.
• U, V and W are motor output terminals for three-phase motor wiring.
• V and W can be used for single-phase motor output wiring.
• PE grounding terminal is provided.
• Control wiring should use shielded or twisted-pair cable and should be kept away from strong-current wiring.

Application Scenarios

• Small water pressure boosting systems.
• Water tower supplement systems.
• Small pump control systems requiring automatic pressure control.
• Applications where compact installation space is required.

Installation and Use Notes

• Set motor phase, rated power, frequency, speed, voltage and current according to the motor nameplate.
• Set the pressure transducer measuring range according to the transducer label.
• If actual pressure display is inaccurate, adjust the pressure correction parameter.
• Before use, confirm that pump rotation direction is correct.