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Thread: Roof Top Unit Disconnect Breaker

  1. #1
    Join Date
    Aug 2011
    Location
    New York, NY
    Posts
    30

    Roof Top Unit Disconnect Breaker

    I am trying to calculate the size of disconnect breaker and i am a bit confused by the SF Hp and RF Hp
    I and the electrical data.
    DO i calculated SF Hp FLA*1.25 and sum of the rest or i do 250% of total FLA
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  2. #2
    Join Date
    Feb 2003
    Location
    Connecticut
    Posts
    3,045
    Quote Originally Posted by mepengineer View Post
    I am trying to calculate the size of disconnect breaker and i am a bit confused by the SF Hp and RF Hp
    I and the electrical data.
    DO i calculated SF Hp FLA*1.25 and sum of the rest or i do 250% of total FLA
    They tell you the breaker size in the "electrical data" section.

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