Can anyone explain why the manufacture would recommend #8 conductor for installation. I came calculated 22 amps. Why would they recommend #8? Thanks Doug
One possibility is the device itself could require an oversized conductor to dissipate heat from it's terminals without exceeding the conductor temperature limits. Since it is so close to the source, you may want to check the temperature of the breaker terminals to ensure they do not exceed 75 degrees C after 3 or 4 hours of run time.