The Story
TREVOLI Booster Pump Controller
L922-B, L931-B, L932-B
This pump controller can control one or two three phase pumps.
It features a pressure transducer which removes the need for a mechanical pressure switch and allows the selection of pressure settings by simply pressing buttons on the controller.
Comes with a remote monitor which allows monitoring and controlling the pump from up to 1200m distance from the controller.
Technical Specifications
Rated output power: 0.37-2.2kW (single phase) 0.75-11kW (three phase)
Working temperature: -25℃ -to +55℃
Working humidity: 20% - 90%
Degree of protection: IP54
Install position: Vertical
Unit dimensions: (L x W x H) 31cm x 22cm x 12cm
Unit weight: 3.6 kg
Typical usage scenarios include:
Hotels
Farms
Water supply from wells
Irrigations of greenhouses, gardens, agriculture
Rain water reuse
Industrial plants
Main features:
Pressure transducer removes the need for a mechanical pressure switch and allows the selection of pressure settings by simply pressing buttons on the controller.
Automatically stops the pump in the case of water shortage, protecting it from dry running without installing float switch or liquid probe in the well.
Dynamic LCD displaying pump running state
Push Button Calibration
Displays Pump Accumulative Running Time
Displays Pump Last Five Fault Record
RS485 Communication
Starts and stops the pump in accordance with the different pressure settings
Audible overflow alarm (also visible on LCD display)
Protects the pump against many faults including:
-Dry run
-Over load
-Transient surge
-Under voltage
-Over voltage
-Pump shaft rust protection
-Pump stalled
-Short circuit
-Open phase
-Three phase unbalance
-Phase reversal
-Repeated start
| Model | Phase | Number of pumps | Suits Pump Type | Rated Output | Switch type | |||
| Submersible | Booster | kW | Level Sensor | Float Switch | Pressure Sensor | |||
| L931-B | 3 | 1 | .75 - 11 | |||||
| L932-B | 3 | 2 | .75 - 11 | |||||

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
TREVOLI Booster Pump Controller
L922-B, L931-B, L932-B
This pump controller can control one or two three phase pumps.
It features a pressure transducer which removes the need for a mechanical pressure switch and allows the selection of pressure settings by simply pressing buttons on the controller.
Comes with a remote monitor which allows monitoring and controlling the pump from up to 1200m distance from the controller.
Technical Specifications
Rated output power: 0.37-2.2kW (single phase) 0.75-11kW (three phase)
Working temperature: -25℃ -to +55℃
Working humidity: 20% - 90%
Degree of protection: IP54
Install position: Vertical
Unit dimensions: (L x W x H) 31cm x 22cm x 12cm
Unit weight: 3.6 kg
Typical usage scenarios include:
Hotels
Farms
Water supply from wells
Irrigations of greenhouses, gardens, agriculture
Rain water reuse
Industrial plants
Main features:
Pressure transducer removes the need for a mechanical pressure switch and allows the selection of pressure settings by simply pressing buttons on the controller.
Automatically stops the pump in the case of water shortage, protecting it from dry running without installing float switch or liquid probe in the well.
Dynamic LCD displaying pump running state
Push Button Calibration
Displays Pump Accumulative Running Time
Displays Pump Last Five Fault Record
RS485 Communication
Starts and stops the pump in accordance with the different pressure settings
Audible overflow alarm (also visible on LCD display)
Protects the pump against many faults including:
-Dry run
-Over load
-Transient surge
-Under voltage
-Over voltage
-Pump shaft rust protection
-Pump stalled
-Short circuit
-Open phase
-Three phase unbalance
-Phase reversal
-Repeated start
| Model | Phase | Number of pumps | Suits Pump Type | Rated Output | Switch type | |||
| Submersible | Booster | kW | Level Sensor | Float Switch | Pressure Sensor | |||
| L931-B | 3 | 1 | .75 - 11 | |||||
| L932-B | 3 | 2 | .75 - 11 | |||||

















