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OC Sportsplex Pool HVAC Unit Replacement <br />PDC Project 23022 Pool Dehumidification Unit 23 84 16 - 2 <br />6.Interference with existing or planned ductwork,piping and wiring <br />7.Electrical power requirements and wire/conduit and over current protection sizes. <br />8.Trap height requirements <br />1.06 QUALITY ASSURANCE <br />A.Manufacturer Qualifications: <br />1.Company that has been manufacturing variable refrigerant volume heat pump equipment for <br />at least 5 years. <br />1.07 DELIVERY,STORAGE,AND HANDLING <br />A.Accept products on site in factory-fabricated protective containers,with factory-installed shipping <br />skids and lifting lugs. Inspect for damage. <br />B.Store in clean dry place and protect from weather and construction traffic. Handle carefully to <br />avoid damage to components,enclosures,and finish. <br />C.Do not operate units until ductwork is clean,filters are in place,bearings lubricated,and fan has <br />been test run under observation. <br />PART 2 PRODUCT <br />2.01 MANUFACTURERS <br />A.Dectron <br />B.Desert Aire <br />C.Innovent <br />D.PoolPak <br />E.Seresco <br />F.Or Approved Equal <br />2.02 PRINCIPLE OF OPERATION <br />A.The unit shall control space temperature and relative humidity,pool water temperature and shall <br />provide ventilation.Warm moist air from the natatorium is drawn over the evaporator coil by the <br />return fan and latent and sensible heat is removed from the air.The heat captured by this process <br />and the heat generated from the compressor power consumption are absorbed by a mechanical <br />refrigeration system.The resulting dryer,cooler air is drawn is blown into a mixing box.The air <br />from the mixing box is drawn over a reheat condenser coil and auxiliary heating coil by a supply <br />fan. <br />B.The unit shall include an automatic heating and cooling economizer control function in which the <br />system logic determines what portion,if any,of the “leaving evaporator”air to exhaust from the <br />mixing box and replace with an equal amount of outside air.The selected exhaust air quantity is <br />that which will result in the least electrical consumption by the unit,based upon a comparison of <br />outside air temperature and humidity,return air temperature and humidity and “leaving evaporator” <br />air temperature and humidity. <br />C.The refrigeration system may be activated if any of the following occur: <br />1.First priority is given to maintaining the natatorium space temperature.No supplementary <br />space heating system external to the unit is required. <br />2.Second priority is given to maintaining the pool water temperature. <br />3.All heat is then transferred to a Remote Air-Cooled Condenser. <br />2.03 UNIT CASING <br />A.All panels and structural steel members shall be constructed of G-90 galvanized steel,treated and <br />painted prior to assembly to provide a chlorine and pool chemical resistant finish.The paint shall <br />be TGIC polyester based powder coating,applied 0.003 inch (2-3 mils)thick,baked and bonded <br />until it forms a hard vinyl textured surface. <br />B.Structural frame shall be 3/16-inch steel channel base with 12-gauge steel cross bracing.Vertical <br />support posts for removable panels shall be formed from 18-gauge galvanized steel and powder <br />Docusign Envelope ID: D4F3B98E-0756-4A0C-A3AD-05AA32D39F1C