Benefits All models can be equipped with a discrete optional Passive Infrared (PIR) motion sensor. With the embedded motion sensor, the VT8350 uses advanced occupancy routines to generate automatic energy savings during occupied and unoccupied periods without sacrificing comfort. • Generate automatic energy savings • Display custom logo • Interchange between °C/°F • Suitable for commercial/hospitality markets • 22 selectable languages Note: This specification applies to units with date code 1838 or later. Product at a glance The perfect balance between simplicity and sophistication. Select from a wide variety of configurable screen colors to match decor. Display your own logo and custom messages on screen to reinforce your brand and provide a more enjoyable occupant experience. • Interface: touch screen interface. • Aesthetics: up to 10 selectable screen colors. • Flexible: supports upload of custom standby screen and Lua scripts. • Conformity: conforms to ASHRAE specifications for Green Building Standards and applicable safety, EMC and radio standards. • Customize : supports the display of custom messages when integrated to a BACnet MS/TP or IP (requires a Wi-Fi module) system. • Protocols: wired BACnet MS/TP or Wireless BACnet IP, Modbus RTU, wireless ZigBee Pro and ZigBee Green Power. • Peripherals: easy to install ZigBee Pro plug-in module, CO 2 sensor plug-in module or Wi-Fi plug-in module. • Sensors: CO 2 , occupancy, motion, light, temperature, relative humidity and water leak sensors. • Automatic Demand Response: load shedding application for demand response. Version 13 VT8000 Room Controllers VT8350 Data Sheet Low Voltage Fan Coil Unit (FCU) and Zone Control Firmware release version 2.4 Application Specific low voltage Room Controller with customizable screen colors. Suitable for commercial and high end hospitality markets. It can also be used as a zone controller.2 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] VT8350 Overview Introduction Smart energy management has never been easier than with the VT8350 room controllers for Variable Air Volume (VAV) applications. Designed for new construction and retrofit projects, the room controllers dramatically decrease project delivery costs by reducing installation, configuration and commissioning time. No complex software or tools are required to customize functionality to meet your applications requirements. The room controllers provide all the advanced features and monitoring functions required by modern building automation systems in a simple compact enclosure. Application Specific and Programmable The VT8350 room controllers, part of the 8000 series, are both application-specific AND programmable. This enables the modification of pre-configured control sequences, or the creation of entirely new control sequences for VAV applications. Their configurable control sequences, and scheduler functionalities deliver all the flexibility necessary for optimal indoor air quality applications. Touch Screen with Customizable User Experience The touch screen of the VT8350 room controller offers a customizable user experience with selection of languages, temperature scales, buttons, and screen colors. Using the Uploader Tool, it also supports the upload of an image or logo that becomes the default standby screen of the device. Custom messages can also be displayed on-screen using BACnet® objects when the VT8350 room controller is integrated via a BACnet MS/TP, BACnet IP or Modbus RTU system. Optional Passive Infrared Motion Sensor All models are available with a discrete optional passive infrared (PIR) motion sensor. With this sensor, the VT8350 room controller uses advanced occupancy routines and optional additional Lua scripts to generate automatic energy savings during occupied and unoccupied periods without sacrificing comfort. Automatic Demand Response The Automatic Demand Respond (ADR) implements the Load Shedding application compatible with regulations for Occupant Controlled Smart Thermostats. The application requires a BACnet command from interfacing equipment to turn-on and turn-off the Load Shedding feature. Messaging and confirmations are performed by adjoining equipment having Internet connectivity and then providing the Room Controller the BACnet or Modbus command. ZigBee Wireless Sensors The VT8350 room controllers support pairing of a number of ZigBee wireless sensors. Facility managers benefit from being able to monitor critical areas and be informed of events of concern in a timely manner which facilitates the maintenance of a safe and efficient operation. Balancing During balancing, a technician will install a calibrated flow sensor (Balometer) over the outlet in each room and use this to calibrate the VT8350: • Pressure Independent: True air flow will be measured and compared to the airflow calculated by the VT8350 at various setpoints. VT8350 calibration parameters will be adjusted by the technician to ensure the calculated air flow matches the true air flow. • Pressure Dependent: True air flow at various damper percentages will be measured and used to set the appropriate damper percentages for the air flow required for the zone.3 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] VT8350 Features Product Highlights • Low-voltage microprocessor-based Variable Air Volume (VAV) controller. • Configurable to support damper control for Pressure Independent (PI) and Pressure Dependent (PD) VAV systems. • Pre-programmed, containing all required I/O to accomplish VAV Application. • Embedded local configuration utility using the touch screen allowing for simplified configuration, sequence selection, re- initialization, setting of setpoints and control of display settings. • Accurate temperature control using a PI (Proportional-Integral) algorithm. • Integrated Changeover function. • Configurable temporary or permanent local override setpoints. • Local or remote override during unoccupied mode. • Adjustable local unoccupied heating and cooling setpoint limits, as well as maximum heating and minimum cooling limits. • Adjustable dead and proportional bands. • Remote night set back. • Door, window, wall, ceiling or motion detection. • Custom programs using Lua Scripts. Communication & Connectivity The VT8350 Series Room Controller is ready for networked communication with a Building Management system using BACnet™ (MS/TP on board, or IP via Wi-Fi), ZigBee™ Pro, or Modbus (RS-485), as needed. Integration to Schneider Electric Systems The VT8350 Series Room Controller can be seamlessly integrated with the following: • EcoStruxure™ Building Expert™, EcoStruxure Building Operation and other Schneider Electric systems. • Wireless integration to BACnet IP via Wi-Fi. • Direct wired integration to BACnet MS/TP and Modbus. Custom Match Styling to Decor • LED-backlit LCD touch screen • 10 color options for LCD screen • 22 selectable languages • Over 12 screens are available for Commercial and Hospitality use cases 10 selectable screen colors 2018.04.1812:54 PM2018.04.1812:54 PM2018.04.1812:54 PM 2018.04.1812:54 PM2018.04.1812:54 PM CUSTOM STANDBY SCREEN AND MESSAGES > Custom standby screen > Custom BACnet MS/TP messages4 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] VT8350 Applications The VT8350 Room Controller is a new cost-effective solution that provides contractors with an easy to implement solution for Variable Air Volume (VAV) applications. It is designed for zone temperature control in Variable Air Volume systems. An Air Handling unit and a VAV rooftop unit serve many zones within a building by supplying a varying amount of supply air at a constant supply air temperature. The supply air is discharged into the main duct and branches from this main duct are run to individual zones. Each zone has its own Room Controller, which in turn controls a VAV box (damper). This damper opens and closes to maintain the zone setpoint by varying the airflow to the zone. It supports Pressure Independent (PI) operation using a differential air pressure sensor to manage air flow setpoints, and Pressure Dependent (PD) operation with approximate airflow based on balanced damper positions. Typical Pressure Independent Application (no fan) Baseboards BACnet MS/TP Wired communication protocol ZigBee ® Pro Optional wireless sensors BACnet IP Optional wireless communication Changeover sensor DP sensorActuator Supply air Flow sensorDamper Reheat Supply air sensor5 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] Typical Pressure Independent Application (parallel fan) Typical Pressure Dependent Application (no fan) ZigBee® Pro Optional wireless sensors BACnet IP Optional wireless communication Changeover sensor Supply air sensor Supply air Parallel fan Flow sensor Reheat Damper Baseboards BACnet MS/TP Wired communication protocol DP sensorActuator Changeover sensor Supply air sensor Baseboards BACnet MS/TP Wired communication protocol ZigBee ® Pro Optional wireless sensors BACnet IP Optional wireless communication Supply air Damper Reheat Actuator6 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] VT8350 Programming Programming with Lua: HVAC Applications and Beyond The VT8350 Room Controllers are programmable using the open programming language Lua. Although building management systems often use open protocols and standards, their program BACnet objects and scripting features remain proprietary and incompatible with third party devices. The VT8350’s use of an open language enables operability with all systems. Programming can be used to go beyond the pre-configured control sequences of the VT8350 to create customized HVAC applications. It can also be used to comply with specific project requirements and manage other applications, such as lighting and other equipment. Using Lua scripts also enables you to take advantage of the extra inputs and outputs of the VT8350 to manage other devices, such as sensors and relays. Loading Lua via BMS When integrated into a BACnet MS/TP or IP building management system, the VT8350 allows 10 Program BACnet objects able to contain 480 characters each. No special software, license or tool is required. Viewing Objects in EcoStruxure Building Operation All PG Objects of the VT8350 Room Controller can easily be viewed through a Building Management System. Loading Lua via USB When there is no BACnet MS/TP, BACnet IP or Modbus integration, a Lua script can be uploaded directly into the VT8350 unit using the 8000 Uploader Tool. Unlike the 10 PG objects used when the unit is integrated via BACnet MS/TP or Modbus, there is only one script, which can contain up to 80kBytes. In addition to Lua scripts, standby screen images and firmware upgrades can also be loaded into the VT8350 using the 8000 Uploader Tool. Viewing the Lua Status via VT8350 Touch Screen As shown on the screen captures below, we can: • View the first few lines of the Lua script (to facilitate identification of which script is running). • View the program status and any error information. • Start or stop the script. • View the status of 12 objects provided for general use by Lua scripts. 1/4 LUA LUA program’s name: User program Program: if not init then init=true delay=0 end if ME.BV1==1 then ME.BO98=1 delay=60 2/4 LUA Debug log: Program cmd Program status Program error Run Running No error 3/4 Lua 0 8 Param. B (AV26) Param. C (AV27) Param. D (AV28) Param. E (AV29) Param. F (AV30) 0 0 0 Param. A (AV25)5 4/4 Lua 0 0 Param. H AV226 Param. I AV227 Param. J AV228 Param. K AV229 Param. L AV230 0 0 0 Param. G AV22507 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] Specifications Main Specifications ItemDescription Dimensions12cm/4.72in (H) x 8.6cm/3.38in (W) x 2.5cm/1in (D) Power RequirementsInput: 24Vac ±15%, 50/60Hz Peak device consumption: up to 6VA with CO2 sensor or Wi-Fi module Plus Output Load (max total 100VA) Transformer maximum rating: 100VA, 4.17 A Output Ratings5 DO (Electronic Relays): 24Vac ±15%, 50/60Hz, 1.0 Amp., in-rush = 3.0 Amps (< 100 ms) 4 UO (Electronic Relays or Analog Outputs – Configurable): 0 - 10 Vdc, 5mA maximum, (2 kilo-ohm resistance) Configurable Output Analog/Electronic Relay Operating Conditions0 °C to 50 °C (32 °F to 122 °F) 0% to 95% R.H. non-condensing Storage Conditions-30 °C to 50 °C (-22 °F to 122 °F) 0% to 95% R.H. non-condensing Temperature SensorLocal 10 K NTC type 2 thermistor Temperature Sensor Resolution± 0.1 °C (± 0.2 °F) Temperature Control Accuracy±0.5 ° C (± 0.9 °F) @ 21 °C (70 °F) typical calibrated Humidity Sensor PrecisionReading range from 10-90 % R.H. non-condensing 10 to 20% precision: 10% 20% to 70% precision: 5% 70% to 90% precision: 10% Humidity Sensor StabilityLess than 0.25 % yearly (typical drift) Occ, Unocc and Standby Cooling Setpoint Range12.0 to 37.5 °C (54 to 100 °F) Occ, Unocc and Standby Heating Setpoint Range4.5 °C to 32 °C (40 °F to 90 °F) Room and Outdoor Air Temperature Display Range-40 °C to 50 °C (-40 °F to 122 °F) Proportional Band for Room Temperature ControlCooling and Heating: Default: 1.8°C (3.2°F) Analog InputsModulating 0-10 VDC across UI19, UI24 to Common Binary InputsDry contact across terminals UI16, UI17 to Common Remote Temperature Sensor10 K NTC type 2 thermistor UI20, UI22, UI23 Wire GaugePower supply: 18 gauge maximum Communications: 22 gauge typical, 22 gauge minimum Shipping Weight0.34 kg (0.75 lb)8 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] Safety and Certifications EMC/ Safety StandardsRadio Standards (For models with ZigBee Radio) EMV Directive 2014/30/EURE Directive 2014/53/EU FCC 15B Class BETSI EN 300 328 V2.1.1 ICES-003 Class BETSI EN 301 489-1 V1.9.2 ETSI EN 301 489-17 V2.2.1 EN 60730-1:2016FCC Part 15C IEC 60730-1:2010RSS-247 EN 60730-2-9:2010 IEC 60730-2-9:2008 EN 60730-2-13:1998 UL 60730-1:2016 CAN/CSA-E60730-1:2015 UL 60730-2-9:2017 CAN/CSA-E60730-2-9:2015 UL60730-2-13:2014 IEC 60730-2-13:2014 THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE , AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. In order to comply with FCC/ISED RF Exposure requirements, this device must be installed to provide at least 20 cm separation from the human body at all times. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : 1) l’appareil ne doit pas produire de brouillage; 2) l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Afin de se conformer aux exigences d’exposition RF FCC/ISED, cet appareil doit être installé pour fournir au moins 20 cm de séparation du corps humain en tout temps. Check with your local government for instruction on disposal of this product.9 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] Dimensions 27mm (1.06”) 86mm (3.39”) 120mm (4.72”) 10 028-0452-13_SDS-VT8350_A4_EN www.viconics.com January 2020 VT8350 [ Data Sheet ] Ordering Information VT8350 part numbers RH sensor PIR motion sensor ZigBee built-in VT8350U5000Bx VT8350U5500Bxx VT8350U5500BPxxx Communication modules Consult their respective datasheets for the latest available part numbers and features Part numbers Part numbers VT83B0050 RH sensor and control -50 = RH sensor with humidity control 55 PIR motion sensor -0 = No PIR -5 = PIR on board Network -B = BACnet ® MS/TP (ZigBee Pro communication module available separately) U Compatibility -U = Universal outputs There is one location in the back of the device where you can install a plug-in module. This can be either a ZigBee® Pro wireless plug-in module (PN VCM8000V5045P), a CO2 sensor plug-in module (PN VCM8001V5045) or a Wi-Fi plug-in module (PN VCM8002V5031), BUT NOT ALL THREE. P ZigBee Pro -P = on board -Blank = not on boardNext >