Description
Relay adjustment: disconnect the pump power supply, remove the relay cover, and set the limits required for turning the pump on and off according to the following points:
– large spring (switch-on), adjusts the lower pressure level; to increase the pressure level at which the pump switches on, turn the adjusting nut the required number of turns. One full turn of the nut (360°) corresponds to a 1 atmosphere pressure change. To reduce the pressure level, turn the adjusting nut counterclockwise the required number of turns.
– small spring (off), adjusts the upper pressure level; to increase the pressure level at which the pump switches on, turn the adjusting nut to the required number of turns. One full turn of the nut (360°) corresponds to approximately a 0.2 atmosphere pressure change.
– to reduce the pressure – turn the adjusting nut counterclockwise the required number of turns.
