Installation & Operations Surface Temperature Sensor with Optional BAPI-Box Crossover Enclosure Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. 39165_ins_surface_sensor_passiverev. 05/03/17 1 of 3 • The Surface Sensor features a 0.75” diameter copper encapsulation shell with a thermally adhesive tape so that they can be mounted to flat surfaces. • Surface Sensors are commonly used on glass windows and doors, solar panel modules, and other hard-to-access areas where immersion or duct sensors do not fit well. • Surface Sensors are available with a new BAPI-Box Crossover enclosure. Fig. 2: Surface Sensor in a BAPI-Box Crossover (BBX) Enclosure (A Pierceable Knockout Plug is available for the open port to increase the rating from IP10 to IP44 or IP66 with cover gasket) Overview and Identification Fig. 1: Surface Sensor and Associated Parts Mounting the Surface Sensor Step 1: Clean desired surface using provided isopropyl prep pad and then dry. Step 2: Remove release sheet from adhesive and firmly place sensor on surface. Step 3: Slide foam insulation down the wire and place over the sensor. Be sure to prevent large air gaps under the foam. Step 3Step 2 Surface Sensor and Cable Foam Insulation Isopropyl Prep Pad Installation & Operations Surface Temperature Sensor with Optional BAPI-Box Crossover Enclosure Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. 39165_ins_surface_sensor_passiverev. 05/03/17 2 of 3 Wiring & Termination BAPI recommends using twisted pair of at least 22AWG and sealant filled connectors for all wire connections. Larger gauge wire may be required for long runs. All wiring must comply with the National Electric Code (NEC) and local codes. Do NOT run this device’s wiring in the same conduit as high or low voltage AC power wiring. BAPI’s tests show that inaccurate signal levels are possible when AC power wiring is present in the same conduit as the sensor wires. Fig. 4: 2-Wire Termination for Thermistor or RTDsFig. 5: 3-Wire Termination for RTDs Thermistor or RTD Sensor To Controller Analog Input (AI) (No Polarity) To Controller Analog Input (AI) (No Polarity) Mounting the Optional Enclosure Fig 3: Remote Probe with BAPI-Box Crossover (BBX) Enclosure Mount the enclosure to the surface using BAPI recommended #8 screws through a minimum of two opposing mounting tabs. A 1/8” inch pilot screw hole makes mounting easier through the tabs. Use the enclosure tabs to mark the pilot hole locations. The BBX6 version of the BAPI-Box Crossover comes with a cover gasket and a pierceable knockout plug for the open port. Insert the plug into the open port on the enclosure. The plug increases the enclosure rating from IP10 to IP66/NEMA 4X for enclosures with the cover gasket. The plug increases the rating from IP10 to IP44 for enclosures without the cover gasket. Notes: Drilling into the IP66/NEMA 4X (BBX6) version of the BAPI-Box Crossover enclosure will violate the IP and NEMA rating. Use caulk or Teflon tape for your conduit entries to maintain the appropriate IP or NEMA rating for your application. Conduit entry for outdoor or wet applications should be from the bottom of the enclosure. TERMINATION OF UNITS WITHOUT A TERMINAL STRIP OR TEST AND BALANCE SWITCH Installation & Operations Surface Temperature Sensor with Optional BAPI-Box Crossover Enclosure Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:sales@bapihvac.com • Web:www.bapihvac.com Specifications subject to change without notice. 39165_ins_surface_sensor_passiverev. 05/03/17 3 of 3 Wiring & Termination continued... Fig. 6: Terminal Strip (-TS) or Test and Balance (TB) Option for 2 Wire Sensors Fig. 7: Terminal Strip (-TS) or Test and Balance (TB) Option for 3 Wire Sensors Factory Wired Sensor To Controller Analog Input (AI) (No Polarity) Factory Wired Sensor To Customer-Supplied 3-Wire Transmitter Sensor Type Low Temp (40° F) Resistance Value High Temp (105°F) Resistance Value 1000Ω RTD1.02KΩ (41.20°F)1.15KΩ (101.5°F) 3000Ω Thermistor7.87KΩ (39.8°F)1.5KΩ (106.8°F) 10K-2 Thermistor30.1KΩ (34.9°F)4.75Ω (109.1°F) 10K-3 Thermistor26.7KΩ (35.9°F)5.11KΩ (108.4°F) 10K-3(11K) Thermistor7.32KΩ (43.7°F)3.65Ω (105.2°F) TEST AND BALANCE SWITCH: For units with a Test and Balance Switch, the Norm position allows the real sensor at be monitored at “Sensor A Out”. The High position forces the “Sensor A Out” to a very hot reading and the Low position forces “Sensor A Out” to a very cold reading (see Table at right). TERMINATION OF UNITS WITH A TERMINAL STRIP OR TEST AND BALANCE SWITCH Possible Solutions: -Confirm the input is set up correctly in the front end software - Check wiring for proper termination & continuity. (shorted or open) - For units with a Test & Balance Switch, verify that it is in the center position. - Measure the physical temperature at the temperature sensor’s location using an accurate temperature standard. Disconnect the temperature sensor wires and measure the temperature sensor’s resistance across the sensor output pins with an ohmmeter. Compare the temperature sensor’s resistance to the appropriate temperature sensor table on the BAPI website. If the measured resistance is different from the temperature table by more than 5% call BAPI technical support. Find BAPI’s website at www.bapihvac.com; click on “Resource Library” and “Sensor Specs” then click on the type of sensor you have. Possible Problems: Controller reports higher or lower than actual temperature DiagnosticsNext >