Orange County NC Website
DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 239500 - MULTI - INDOOR VRV SYSTEM <br />1. The fan shall be direct -drive turbo fan type with statically and dynamically <br />balanced impeller with three fan speeds available. <br />2. The fan motor shall operate on 208/230 volts, 1 phase, 60 hertz with a <br />motor output range from 0.06 to 0.14 HP. <br />3. The airflow rate shall be available in three settings. <br />4. The fan motor shall be thermally protected. <br />F. Filter: <br />1. The return air shall be filtered by means of a washable long -life filter with <br />mildew proof resin. <br />G. Coil: <br />1. Coils shall be of the direct expansion type constructed from copper tubes <br />expanded into aluminum fins to form a mechanical bond. <br />2. The coil shall be of a waffle louver fin and high heat exchange, rifled bore <br />tube design to ensure highly efficient performance. <br />3. The coil shall be a 3 -row cross fin copper evaporator coil with 21 FPI de- <br />sign completely factory tested. <br />4. The refrigerant connections shall be flare connections and the conden- <br />sate will be 1 inch outside diameter PVC. <br />5. A condensate pan with antibacterial treatment shall be located under the <br />coil. <br />6. A condensate pump with a 23 -5/8 inch lift shall be located below the coil <br />in the condensate pan with a built -in safety alarm. <br />7. A thermistor will be located on the liquid and gas line. <br />H. Electrical: <br />1. A separate power supply will be required of 208/230 volts, 1 phase, 60 <br />hertz. The acceptable voltage range shall be 187 to 253 volts. <br />2. Transmission (control) wiring between the indoor and outdoor unit shall <br />be a maximum of 3,280 feet (total 6,560 feet). <br />3. Transmission (control) wiring between the indoor unit and remote control- <br />ler shall be a maximum distance of 1,640 feet. <br />I. Control: <br />1. The unit shall have controls provided by Daikin to perform input functions <br />necessary to operate the system. <br />2. The unit shall be compatible with interfacing with a BMS system via op- <br />tional LonWorks or BACnet gateways. <br />3. The unit shall be compatible with a Daikin Intelligent Touch Manager ad- <br />vanced multi -zone controller. <br />J. Optional Accessories Available: <br />1. Remote "in- room" sensor kit (KRCS01 -4B). <br />i. The Daikin wall mounted, hard wired remote sensor kit is recom- <br />mended for ceiling- embedded type fan coils, which often result in a <br />difference between set temperature and actual temperature. The sen- <br />sor for detecting the temperature can be placed away from the indoor <br />unit (branch wiring is included in the kit). <br />2. Sensor Kit (BRE49131 F) <br />i. The infrared presence sensor can detect human presence and ad- <br />just the airflow direction automatically to prevent drafts. Optional and <br />configurable energy saving occupancy control can be performed when <br />no presence is detected <br />Reece, Noland & McElrath, Inc. 239500-63 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />