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  • Users: norske35
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  1. norske35

    Ceiling fire dampers

    i have a fire rated ceiling in a noncombustible one family house the ceiling assembly is 1 hr Its a sheetrock ceiling with steel joist., the ul design number doesn't have any information on opening protection i'm looking for guidance on how to ceiling connection from equipment below and where...
  2. norske35

    market hvac

    sorry if i'm beating a dead horse hvac for 5000 sf (1STY) building It is and alteration to combine 5 retail stores into an nice food market. they have some seating at front for people to have lunch and checkout register. i did my load calcs , looked at supply/ exhaust / ventilation/...
  3. norske35

    space pressure and infiltration

    if a conditioned space has positive pressure how much of door infiltration is applicable (1 story building with automatic door and no vestibule) Initially looking at supply/exhaust Process exhaust and Mua Bathroom exhaust Ventilation space was slightly negitive . so i can introduce more mua...
  4. norske35

    commercial market alteration

    any thoughts on determing a infiltration rate for a market 2 automatic sliding doors . one entrance , the other exit i was looking a some data for estimating passages per occupant per hr and come ou . its a one story building with roof hvac units. if building pressure is positive how much can...

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