METHOD AND SYSTEM FOR CONTROLLING A FLUID PRESSURE IN A FLUID SYSTEM

Method of controlling a pump to control a fluid pressure in a fluid system comprising a distribution source, a supply grid and a return grid for respective recipients and the pump wherein the method comprises: receiving a local differential pressure between the supply grid and the return grid at a first location; receiving a remote differential pressure between the supply grid and a the return grid at a second location further displaced along the supply line downstream from the pump than the second location; controlling operation of the pump based on the received data and on a local pressure set point; responding to a detected failure to receive the primary remote sensor data at least by modifying, in particular increasing, the local pressure set point and by controlling operation of the pump based on at least the received local sensor data and the modified local pressure set point.