The EWP/Fan DigitalController has two specific functions:

1. Will manage the operation of the EWP by varying the speed of the pump in response to the coolant temperature
2. Manage control of your electric engine fan.

The Controller has a push-button to lock in any temperature from 40°C (104°F) to 110°C (230°F). It's recommended you set/target theController to closely match your engine's existing thermostat temperature.
The Digital Controller will operate the engine's electric fan automatically once the engine has reached +3°C (+5.4°F) above the targeted / set temperature. Another significant benefit isthat the Controller allows theEWP & Fan to run on after ignition shutdown for either 3minutes or -10°C (-14°F) of set set / target temperature to eliminate heat soak.