Installation Instructions Issue Date September 1, 200 Supersedes December 1, 2004 © 2009 Johnson Controls, Inc. 1 9 LN Series Sensors Application Requirements The LN Series Sensor analog wall sensor family is specifically designed to interface with fan coil, heat pump, rooftop and other terminal unit building automation controls. The units provide precise indoor local temperature sensing. Local setpoint adjustment with various scales is available. The modern, attractive, low profile enclosure is suitable for classrooms, hotels, executive areas, office spaces, and other commercial areas. Mounting Location Consideration Install the sensor away from any heat source. Do not install the sensor: • on an outside wall • near an air discharge grill • in a location affected by direct sun radiation • in a location that restrains vertical air circulation to the thermostat Code No. LIT-1201871 www.johnsoncontrols.com Figure 1: LN Series Sensor Installation Note: Wall surface must be flat and clean. 1. Remove security screw on the bottom of thermostat cover. 2. Pull the bottom side of thermostat to open (Figure 1). 3. Pull cables 6 inches out of the wall. 4. Insert cable in the central hole of the base. 5. Align the base and mark the location of the two mounting holes on the wall. Install proper side of base up. 6. Install anchors in the wall. 7. Insert screws in mounting holes on each side of the base. Do not overtighten. 8. Strip each wire 1/4 inch. 9. Insert each wire according to wiring diagram. 10. Gently push excess wiring back into the hole in wall. 11. Press printed circuit board into place. 12. Install the cover, top side. 13. Install security screw. Wall AnchorPull on plastic tab to release the printed circuit boardFlip printed circuit board to access mounting hole Security Screw Figure 2: Sensor Installation Wiring Figure 3 shows the terminals. Generic Sensor wiring is in Figure 4; please check Table 1 and Table 2 to verify models. Figure 3: Terminals 10K type 2 NTC thermistor5% precision10K DA setpoint potentiometer20% toleranceResistance increases on CW rotation Normally openMomentarily closedOverride button12345624 Vac / Vdc externally powered LEDfor occupied / unoccupied system status78 LONWORKS Network Terminals 1-2 TP-FT10or Smart Sensor +/-remote connection viaLONWORKS Network Port1/8 inch LONWORKS Network Port Connnection1234CN2CN1Figure 4: Sensor Wiring Table 1: Sensor Functions Part Number Sensor Temperature Override ± Scale C. Scale F. Scale Terminals LN-SENSOR-0 X 1, 2, 7, 8 LN-SENSLO-0 X X 1, 2, 5, 6, 7, 8 LN-SENOCW-0 X X X 1, 2, 3, 4, 5, 6, 7, 8 LN-SENOSC-0 X X X 1, 2, 3, 4, 5, 6, 7, 8 LN-SENOSF-0 X X X 1, 2, 3, 4, 5, 6, 7, 8 2 LN Series Sensors Installation Instructions LN Series Sensors Installation Instructions 3 Table 2: Sensor Models Part Number Description LN-SENSOR-0 Room sensor – no setpoint LN-SENSLO-0 Room sensor with LED, override push button LN-SENOCW-0 Room sensor with LED, override push button, and setpoint adjustment (cool/warm) LN-SENOSC-0 Room sensor with LED, override push button, and setpoint adjustment (°C) LN-SENOSF-0 Room sensor with LED, override push button, and setpoint adjustment (°F) LN-SENAV1-0 Room sensor containing four thermistors. Jumper configurable for averaging up to maximum of for sensors connected in parallel. No setpoint. LN-SENAV2-0 Room sensor containing four thermistors. Jumper configurable for averaging up to a maximum of four sensors connected in parallel. With LED and Override push button. No setpoint. Averaging Sensors Wiring Examples Single Remote Room Sensor AUD1RSScomCD2ScomRSScomRSCDIAuxScomRSScomRSOROR12ONDip switchsetting for:1 sensorS2-1 = ON S2-2 = ON 1 x LN-SENAV2-0Wiring 1 SensorS2 -1 = ON / S2 -2 = ONLN-SENAV1-0Wiring 1 SensorS2 -1 = ON / S2 -2 = ON Figure 5: Single Remote Room Sensor Wiring Example Two Room Sensors for Averaging Applications AUD1RSScomCD2ScomRSScomRSCDIAuxScomRSScomRSCDIAux AUD1RSScomCD2ScomRSScomRSScomRSScomRSCDIAux 12ONDip switchsetting for:2 sensorsS2-1 = OFF S2-2 = ON AUD1RSScomCD2ScomRSScomRSScomRSScomRS2 x LN-SENAV2-0Wiring 2 sensorsS2 -1 = OFF / S2 -2 = ON1 x LN-SENAV1-0 and1 x LN-SENAV2-0Wiring 2 sensorsS2 -1 = OFF / S2 -2 = ON2 x LN-SENAV1-0Wiring 2 sensorsS2 -1 = OFF / S2 -2 = ONNotes for averaging applications:LN-SENAV-1 and LN-SENAV2-0 can be mixed matched.Wire LN-SENAV-1 and LN-SENAV2-0 in parallel.Request the dip switch setting in each remote sensor. Figure 6: Two Remote Sensors for Averaging Applications Wiring Example 4 LN Series Sensors Installation Instructions Three Room Sensors for Averaging Applications AUD1RSScomCD2ScomRSScomRSCDIAuxScomRSScomRSScomRSScomRS2 x LN-SENAV1-0 and 1 x LN-SENAV2-0Wiring 3 sensorsS2 -1 = OFF / S2 -2 = OFF1 x LN-SENAV1-0 and 2 x LN-SENAV2-0Wiring 3 sensorsS2 -1 = OFF / S2 -2 = OFF12ONDip switchsetting for:3 sensorsS2-1 = OFF S2-2 = OFF AUD1RSScomCD2ScomRSScomRSCDIAuxScomRSScomRSScomRSScomRSCDIAux Figure 7: Three Room Sensors for Averaging Application Wiring Example Temperature versus Resistance Chart for 10 K ohm NTC Thermistor ºC ºF K ohm ºC ºF K ohm ºCºF K ohm ºCºF K ohm ºC ºF K ohm -20 -4 87.1310 -10 14 51.3490 0 32 31.1410 10 50 19.4020 20 68 12.3980 -19 -2 82.5330 -9 16 48.7820 1 34 29.6670 11 52 18.5320 21 70 11.8710 -18 0 78.2010 -8 18 46.3570 2 36 28.2700 12 54 17.7050 22 72 11.3690 -17 1 74.1190 -7 19 44.0650 3 37 26.9460 13 55 16.9190 23 73 10.8900 -16 3 70.2710 -6 21 41.8990 4 39 25.6910 14 57 16.1720 24 75 10.4340 -15 5 66.6420 -5 23 39.8490 5 41 24.5000 15 59 15.4620 25 77 10.0000 -14 7 63.2200 -4 25 37.9110 6 43 23.3710 16 61 14.7870 26 79 9.5858 -13 9 59.9910 -3 27 36.0770 7 45 22.3000 17 63 14.1450 27 81 9.1909 -12 10 56.9430 -2 28 34.3410 8 46 21.2840 18 64 13.5330 28 82 8.8143 -11 12 54.0660 -1 30 32.6970 9 48 20.3190 19 66 12.9520 29 84 8.4549 Building Efficiency 507 E. 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