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Southern Human Services Center Smith Sinnett /2020072 <br />HVAC and Roof Renovations Orange County,North Carolina <br />BAS Sensors and Transmitters 23 09 13.23 - <br /> 1 <br />SECTION 23 09 13.23 <br />BAS SENSORS AND TRANSMITTERS <br />PART 1 GENERAL <br />1.01 REFERENCES <br />A.Refer to Section 23 09 00 -References <br />1.02 ACRONYMS,ABBREVIATIONS AND DEFINITIONS <br />A.Refer to Section 23 09 00 -Acronyms,Abbreviations and Definitions <br />PART 2 PRODUCT <br />2.01 SENSORS AND DEVICES <br />A.Input/output sensors and devices shall be closely matched to the requirements of the BAS <br />controller for accurate,responsive,noise-free signal input/output. Control input response shall be <br />high sensitivity and matched to the loop gain requirements for precise and responsive control. <br />B.Sensors and transmitters shall be manually calibrated on site so that the wiring length does not <br />detract from the sensor accuracy specified. <br />C.Provide guards (plastic or wire)for sensors,thermostats,and transmitters that are installed in <br />public areas such as gymnasiums,classrooms,corridors,and vestibules. <br />D.Temperature sensors shall have the following characteristics: <br />1.Sensors shall have +/-1.0 °F accuracy between 32 °F and 212 °F. <br />2.Space temperature sensors <br />a.Shall consist of an element within a ventilated cover. <br />b.Space sensors located in mechanical rooms and public shall contain a network jack,but <br />shall have no ability to adjust temperature setpoint (Set Point Adjustment). <br />c.Space sensors shall be provided in accordance with the drawings and specifications with <br />the following options: <br />1)Sensor complete with Network Jack <br />2)Sensor complete with Network Jack,and Set Point Adjustment <br />3)Sensor complete with Network Jack,and illuminated Override switch <br />4)Sensor complete with Network Jack,Set Point Adjustment,and illuminated <br />Override switch <br />5)Sensor complete with Network Jack,Set Point Adjustment,illuminated Override <br />switch and Fan Speed Selection. <br />E.RTD Transmitter <br />1.Where reference is made on the drawings for a RTD transmitter,it shall be interpreted as <br />follows: <br />2.Transmitters shall meet at minimum the following requirements. <br />a.Provide an RTD transmitter in configurations below meeting the following requirements: <br />1)100 ohm or 1000 ohm PT RTD <br />2)24V ac/dc power supply. <br />3)4-20 mA,0-10Vdc or 0-5Vdc outputs compatible with BMS. <br />4)Electronics accuracy of +/-0.1%of span. <br />5)Operating temperature range of 32°F to 158°F.OSA only -operating temperature <br />range of -40°F to 185°F. <br />6)Optional LCD display <br />F.Temperature Sensor –Outside Air <br />1.Provide outside air temperature sensors as indicated within the field termination schedules <br />and/or controls diagrams. <br />2.Temperature sensors shall meet,at minimum,the following requirements: <br />a.Aluminum LB with PVC sun and windscreen. <br />b.Wall mount weatherproof enclosure with conduit entrance. <br />c.Thermistor or RTD compatible with BMS <br />DocuSign Envelope ID: 94E7997D-4F29-42F6-A9B4-0A160438D2A6