"ramp" - Setting of a time-delayed start by speed delay. Produces a low-noise gentle start of the pump.
"random flow" - Upon activation, a random alternating pulse frequency is used in a range of 0.5 to 3 seconds.
Additional applications at "interval" and "sequential"
"min. flow for switched off pumps"- The circulation pumps are not switched on and off alternately, but the pumps are set variably between a selectable output and the minimum output (30 per cent).