Mechanical — Addition and/or Alterations

FOR THE INSTALLATION OF REGISTERS, DIFFUSERS, AND THE REPLACEMENT OF APPLIANCES WITH ASSOCIATED DUCTWORK AND PIPING. APPLIANCES TO BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.