Application: Control&Protect Single phase Pump for

pressure boosting,DOL

Intelligent pump controller L922-B is an easy to use

,programmable controlling & protection device for duplex

booster pump .

Model L922-B is specially designed for pressure booster

pumping system by adopting pressure transmitter (0.5-

4.5v),pump user can easily set the different pressure value

and observe the dynamic pressure value in the pipeline.

Duplex Pump Control Panel Model L922-B(Pressure Boosting Type)

Main Spec:

Main features:

Rated Inp t Voltage: AC 220V/50HZ,Single Phase

Rated Output Power:0.37W-2.2KW/3KW-4KW

- Double pumps control

 Main pump/standby pump automatically alternate

 Main pumps/standby pump automatically switch against malfunctions

 Standby pump participate running if required

- Present pressure transmitter with 0.5-4.5V analog signal

- Easily setting the different pressure value and observing the dynamic pressure value

- Eliminates the pressure switch:pressure setting for two pumps;pressure setting for one pump

- Automatically stop the pump in the case of water shortage, protecting it from drying running without installing the

float switch or liquid probe in the well

- Auto / Manual switch

- Pump accumulative running time displaying

- Pump last five fault record displaying

- LCD displays pump running information

- Protect the pump against many faults

- Grade of Protection IP 54

- Present remote monitor

- Present one dry contact point

- Visual & Audio alarm for fault prompt

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