Nice ! Reviewing for GA Conditioned Air Board Lic Non restricted. Did HVAC tech in 2013 and have 4yr Dg in Science from 2000. Currently GA Board EN Master Elect but refreshing for CN test 4 hrs a day.
@@hvacjames509 Aren't you supposed to use the bottom chart (common vent capacity) for each of the common vents between the NAT appliances in your 4 appliance example? I think that if you do, you would have been able to keep the final vent to be 8 inches. 33:54
@@jeramytarwater8382Because the common vent you're speaking of is actually called a common vent connector, I was taught and the way our test is structured is that we only use the bottom for that last vertical part and that we treat the horizontal parts as just a single appliance from the top of the chart.
