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  1. #1

    allowable temperature variations

    Anyone know what is tolerable/allowable temperature variations between rooms (variance from thermastat) (industry standard? Can't seem to find any data on this.
    Much obliged

  2. #2
    Join Date
    Jun 2001
    Location
    Louisville, KY
    Posts
    12,134
    Per ACCA Manual B, 2°F is ideal. 4°F is maximum acceptable.
    Perhaps you should have read the instructions before calling.

  3. #3

    manual b?

    am searching for manual b on the internet and not much luck ...
    know where i might find it?
    many thanks,

  4. #4
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836

  5. #5
    Join Date
    Mar 2002
    Location
    Concord, CA
    Posts
    2,633
    Quote Originally Posted by jrbenny View Post
    Per ACCA Manual B, 2°F is ideal. 4°F is maximum acceptable.
    Does the ACCA standard make allowances for the building shell? Even a pretty mediocre HVAC system can keep a home even if the home is built like a thermos. Conversely, the best HVAC will have a hard time keeping things even in really old homes that are built like outhouses.

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