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Cold air return

Posted by john on January 8th, 2003 11:15 AM
In reply to Cold Air Return by Salt City Sheet Metal on January 7th, 2003 11:10 PM [Go to top of thread]

From a technical stand point, I have to disagree in part with you Donald-there is a problem with too much return air to the furnace. A squirrel cage blower motors amperage WILL increase with a lask or resistance to air flow, so if the furnace gets too much return air one would risk over heating the blower motor and that motor burning out or tripping on an internal limit. That furnace must only get the amount of return air that it requires or a little less.

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