Nastec Vasco Variable speed pump controller INSTALLATION & USE Connect device to the power supply. Connect device to the pump. Connect device to the sensor, located wherever in the piping you want to maintain the desired constant physical dimension (pressure, flow, liquid temperature, etc.) Set device to configure the pump to the system and the desired performance. When first powering the device, a quick initial wizard is required for complete configuration of the drive. Additional parameters can be configured later by entering three different setting levels: End user level.  The only level which can be accessed without a password. It allows the user to monitor electrical and hydraulic parameters and the status of device and pump. Installer level.  In this level the installer can configure pump system to the characteristics of the hydraulic system. A password is required. Advanced level.  This level allows the electrical configuration of device according to t