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MASTER SPECIFICATIONS Division 23 HEATING …
www.northwestern.edumaster specifications: division 23 – heating ventilating and air conditioning . section # title 23 0000 common work results for hvac . 23 0513 motors . 23 0514 variable frequency drives (vfd) 23 0516 expansion fittings and loops for hvac piping . 23 0517 sleeves and sleeve seals for hvac piping . 23 0518 escutcheons for hvac piping