Thermostats for VAV Controller TRLxx24-CO2-161012-ESA.docx www.neptronic.com Page | 1 Description TRL24/ TRLH24/ TRLG24/ TRLGH24 Temperature Sensor Setpoint range 10ºC to 40ºC [50ºF to 104ºF] Control accuracy Temperature: ±0.4ºC [0.8ºF] Display resolution ±0.1ºC [0.2ºF] CO 2 Sensor (TRLG24 and TRLGH24 only) Operating principle Self-calibrating, Non-Dispersive Infrared (NDIR) Sensor Range 0 to 2000 ppm Setpoint range 100 to 2000 ppm Accuracy ±30 ppm ±3% of reading Response time 2 minutes by 90% Display resolution 1 PPM Humidity Sensor (TRLH24 and TRLGH24) Sensor range 5 to 95%RH Display resolution 0.1% Electrical connection Three wires to EVCB controller and two wires to BACnet/Modbus network | 0.8 mm 2 [18 AWG] minimum Network service port Mini USB connector Power supply 24Vac or 24Vdc Power consumption 1VA Operating temperature 0ºC to 50ºC [32ºF to 122ºF] Storage temperature -30ºC to 50ºC [-22ºF to 122ºF] Relative humidity 5 to 95 % non-condensing Enclosure protection IP 30 (EN 60529) Weight 120 g. [0.25 lb] Dimensions A = 2.85” | 73mm B = 4.85” | 123mm C = 1.00” | 24mm D = 2.36” | 60mm E = 3.27” | 83mm Certifications Conforms to UL STD 873 Certified to CSA STD C22.2 No. 24-93 Note The thermostat functions only with the EVCB series VAV controller. All the inputs/outputs are located on the controller except for the temperature, humidity, and CO 2 sensor built-in the thermostat. Features: Used to configure and operate the EVCB VAV controllers Selectable internal or external temperature sensor (10 KΩ) Humidity sensing (TRLH24 and TRLGH24 only) Large LCD with backlight Icon-driven information and 1 line of text information Three wire connection between thermostat and controller Selectable Fahrenheit or Celsius scale Network service port via on-board mini USB connector CO 2 Features (TRLG24 and TRLGH24 only) Built-in, self-calibrating, non-dispersive infrared (NDIR) CO 2 sensor Adjustable CO 2 setpoint via EVCB controller menu CO 2 measurement display (lockable) TRL24 TRLH24 TRLG24 TRLGH24 A B C D EThermostats for VAV Controller TRLxx24-CO2-161012-ESA.docx www.neptronic.com Page | 2 Interface Cooling ON A: Automatic Communication Status Alarm status Heating ON A: Automatic Menu Locked Energy saving mode (NSB or Occupancy) Fan ON A: Automatic Programming mode (Technician setting) Percentage of humidity or ºC: Celsius scale ºF: Fahrenheit scale Mounting Instructions CAUTION: Remove power to avoid a risk of malfunction. A. Remove the captive screw that’s holding the base and the front cover of the unit together. B. Lift the front cover of the unit to separate it from the base. C. Pull all wires through the holes in the base. D. Secure the base to the wall using wall anchors and screws (supplied). Make the appropriate connections. E. Mount the control module on the base and secure using the screw. Settings on PC Board & Connections 3 wire cable (TB1 #1, 2 & 3) Connect TB1 #6 (A+) & #7 (B-) to EVCB for BACnet service port to work Mode Selection (JP1) RUN: Thermostat is in Operation Mode. Thermostat must be set in this mode to operate properly. If not locked, setpoint and control mode (Heating & Cooling ON, Cooling only ON or Heating only ON) can be modified by the end user. PGM: Thermostat is set in Programming Mode. Refer to the following section about all settings description C F %RH MOTUWETHFRSASU AM PM . . . . %RH CF A E D C B Mode Selector Jumper RUN = Operation Mode PGM = Programming Mode BACnet service port Avoid touching the CO2 sensor as this may cause incorrect readings TB1 1 2 3 4 5 6 7 PGMRUN A B C JP1 Optional: connect to BACnet network to enable service port CO 2 sensor (TRLG and TRLGH24 only) A+ DATA PWR COM B- Connect to VAV controller Temperature sensor (all models) Humidity sensor (TRLH24 and TRLGH24 only) PGM RUN JP1 PGM RUN JP1Next >