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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 238147 — DEDICATED OUTDOOR AIR SYSTEM <br />J. To increase the efficiency of the cooling system the DDC controller shall include a discharge air <br />temperature reset program for part load operating conditions. The discharge air temperature shall <br />be controlled between a minimum and a maximum discharge air temperature (DAT) based on one of <br />the following inputs: <br />1. Airflow <br />2. Outside air temperature <br />3. Space temperature <br />4. Return air temperature <br />5. External signal of 1 -5 vdc <br />6. External signal of 0 -20 mA <br />7. Network signal <br />2.016 ROOF CURB <br />A. A prefabricated heavy gauge galvanized steel, mounting curb shall be provided for field assembly <br />on the roof decking prior to unit shipment. The roof curb shall be a full perimeter type with complete <br />perimeter support of the air handling section and condensing section. The curb shall be a minimum <br />of 14" high and include a nominal 2" x 4" wood nailing strip. Gasket shall be provided for field mount- <br />ing between the unit base and roof curb. <br />END OF SECTION 239700 <br />Reece, Noland & McElrath, Inc. 238147-9 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />