System ductwork causing airflow issue leading to the tripping of the big limit safety. Bedroom return 12x12x1 with 10” flex. Hallway return 12x24x1 with 14” flex. Manometer readings: 0.65WC return and 0.15WC supply . 0.8WC delta. Adjusted the zone setting on the zone control panel to stop heating before the furnace limit switch trigger. This should stop the furnace from turning off in high limit and blowing air to all zones.
