furnace air flow chart
The arrows point in the direction of the airflow. To determine the airflow direction in your furnace all you have to do is look for an arrow on the side of it.
So if it is pointing to the left that means the air is moving from the right to the left.
![](https://i.pinimg.com/originals/e0/45/72/e04572a90e518570c3a51049938c3126.jpg)
. You must have 400 CFM of air flow per Ton of AC 1 Ton equals 12000 BTU. Usually furnaces have multiple arrows stamped into the metal near the filter housing. 30 rows When Cooling.
Flow Factor Room CFM Flow Factor x Room Load Pressure Drop x 100 TEL Blower CFM x Room Load Equipment Sizing Load Blower CFM Equipment Sizing Load BTUHour 108 x TD x ACF Sensible Load Sensitive Load Latent Load 45 is a.
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