We also use a neutral tester. Don’t trust the dials on the controller. With line side energized and load side port we test across line side and load side and cycle the unit through its steps and verify proper operation. Then we verify 0. After verification of tester working and that the unit operates properly then we tie in load side.
We also use a neutral tester. Don’t trust the dials on the controller. With line side energized and load side port we test across line side and load side and cycle the unit through its steps and verify proper operation. Then we verify 0. After verification of tester working and that the unit operates properly then we tie in load side.