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DocuSign Envelope ID: E9612703-F25B-492D-9C8C-EC3F9728ECE6 <br /> 15622 PIPE AND PIPE FITTINGS: <br /> General - Run all piping parallel or perpendicular to building lines and walls unless otherwise <br /> shown. Exposed piping arrangements shall be symmetrical straight runs,evenly spaced and graded. <br /> A. PIPING: <br /> 1. Piping For A/C Condensate Water Lines: Pipe: A/C condensate pipe shall be "Cresline"PVC, <br /> schedule 40, or approved equal, conforming to ASTM Specification D1785-13, suitable for a <br /> minimum working pressure of 150 PSI, with water temperature of 120 degrees F. Pipe shall be <br /> furnished with couplings and PVC schedule 40 pressure fittings for cement joints. Adapter fittings <br /> with screw connections shall be furnished as required for connections to equipment,valves,unions, <br /> etc. Joints to be assembled in accordance with manufacturer's recommendations and instructions. <br /> Piping shall be adequately supported with hangers spaced in accordance with manufacturer's <br /> instructions and recommendations. <br /> All pipe shall be clearly marked with class, specification designation, and pressure rating. <br /> 15688 PAD MOUNTED CONDENSING UNITS: • <br /> Furnish and install air conditioning air cooled condensing units as shown on plans. Units shall be <br /> completely assembled,piped and wired internally ready for field connections. Condenser exhaust air <br /> shall be discharged out of top of unit, and unit to have guards on coils and fans. Unit shall be <br /> matched to air handling unit to give integrated capacities indicated on plans and of same <br /> manufacturer. Unit to be as manufactured by Carrier, Trane, or approved equal. <br /> Unit shall be test operated at factory before shipment. Units shall be installed on suitable 4"concrete <br /> pad by this Contractor if shown ground mounted,and on Greenheckpre-fab equipment supports style <br /> GESR,or Pate Equipment Curbs-installed per manufacturer's instructions if shown roof mounted. <br /> All roof penetrations shall utilize Pate pipe curb assembly. All wall penetrations to be properly <br /> sleeved and sealed. Utilize Mitsubishi Line Hide System for all vertical refrigerant piping,furnished <br /> complete with all accessories,fittings,brackets,etc.for a complete system—color by owner(either <br /> factory color or field-painted as required—coordinate). <br /> The refrigerant system shall include a liquid line service valve, compressor cycle protector, high <br /> pressure switch,low pressure switch, schrader fitting,refrigerant test valve,crank case heaters, and <br /> high capacity dryer. Refrigerant piping shall be Type "L"hard copper tubing,sized and installed per <br /> manufacturer's instructions,soldered with"silver solder",purged with dry nitrogen,evacuated before <br /> charged, insulated with 3/4" Armstrong "Armaflex" or approved equal. If installed below grade <br /> between unit and building to be in 3" schedule 40 PVC conduits. Pre-charged line sets preferred <br /> where available sized per manufacturer's recommendations. <br /> Unit to include cased, dx cooling coil furnished complete with drain pan (for installation at air <br /> 15H-19 <br />