Replacing the mechanical pressure switch at the pumping station. Electrical connection, errors

In the video, the standard mechanical pressure switch has been replaced by the Optima PM-52 pressure switch

Specifications Pressure switch Optima PM-52

Optima PM-52 pressure switch in transparent case and mechanical type
Installed only in conjunction with a hydraulic accumulator
The minimum threshold level for shutdown of the pump in the range of 0.4 - 0.6 bar
Working pressure of the relay from 1 to 5.5 bar
Connection type - threaded
Country of origin Poland
Brand - Optima
Product material - Plastic
Maximum water temperature - 40 С
Power source - 220V (from the network)
Product type - Pressure switch
Purpose - Pump control
Protection class - IP65
Maximum pressure - 6 bar
Automation model - PM-52
Dry run protection - No
Auto Restart - No
Starting pressure - 04-55 Bar
Shutdown pressure - 15-6 bar
Weight: 039 kg