It is used to start up the unit and regulate flow.
The black plastic control box is fitted with a switch, indicator light and dimmer:
On/off switch to control dispensing,
A green indicator light,
A flow potentiometer graduated from 0 to 30.
Power supply harness included with the box: The box includes a 3-pin plug for power supply to the tractor with a 6m harness (2×2.5mm cable) and a 2-pin plug for connection to the distributor.
Derivation: the standard T14 kit control box is also available with 2 variators (potentiometers) to control each distribution. This is the kit T14 double-adjustable control box.