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  1. racingdan

    Laundry room

    TOO MUCH LOAD ... Punt ... at least that is a frequently used and realistic approach
  2. racingdan

    sequence of operations

    S.O.O.: 1. High Level 2. Fan On 3. Alarm to notify Plant Security and Manager 4. Plant Manager notifies SCBA qualified maintenance personnel to investigate. 5. Leak Rate determination initiated .. Repair or Retire Decision http://www.epa.gov/ozone/title6/608/compguid/guidance.pdf
  3. racingdan

    HVAC Running Cost

    60 kW * 3.413 BTUh= 204,780 BTUh _ MUCHO Tons ... in the 25-Ton range. Considering equipment S.H.R. and average efficiency, = $60 per day or $21,900 per year ( ~$2.50 /hour based on $0.10/kW) Just use a 7000 CFM Exhaust fan, to limit area temp increase to ~ 25'F __ ~105'F when it's ~ 80'F...
  4. racingdan

    duct sizing for range hood vent to exterior

    Fan curve can be obtained from the Technical Support Dept of the manufacturer ( or request from local vendor). Check overall pressure drop: 1. Using L/D of ~30 for 90 degree elbows of 10" diameter duct. Two 90D elbows - 60 x 10/12 = 50 feet of equivalent straight duct. Add ~ 25 feet of...
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