Air Handler Disconnects

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adavey

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New York
Do air handelers (10,000 CFM) normally have two disconnect switches. one for the supply fan and another for the return fan ??????
 
Air handlers often have 2 disconnects so they can put the fans on emergency power and keep the air circulating when the power goes out. One disconnect for normal and one disconnect for emergency.
 
If your talking about air handlers for household heating, your could have two disconects for the heat strips. 15kw heat requires two disconects. The fans are usually wired into one of these and you would not have a seperate disc for the fans.
 
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