The Grundfos SQE is the only constant pressure pump on the market fully equipped with built-in electronic controls which allow for advanced computer controlled performance and state of the art protection features including sophisticated diagnostics. The motor is a Variable Speed Drive which electronically changes the pump speed to match demand, providing you with the comfort of constant pressure.
Below is a chart to illustrate Cable Sizing (Copper Wire – AWG)
The table below lists the recommended copper cable sizes and cable lengths for SQE motors. Proper wire size (gauge) will ensure that adequate voltage will be supplied to the motor.
To assure adequate voltage, the maximum cable lengths are calculated for when the motor is running at maximum nameplate amps.
Cable sizes (gauges) larger than specified may always be used and will reduce power loss.
The use of cable sizes (gauges) smaller than the recommended sizes will VOID the warranty. Smaller cable sizes (gauges) may cause under-voltage alarms.