RC642/RC642D Room Controller RC642D RC642 Automated Logic’s RC642 Room Controller provides unprecedented power and flexibility to control a variety of packaged HV-ac equipment. Attractively packaged, the RC642 mounts directly on interior walls and provides local setpoint adjustment, schedule and override capabilities. The Room Controller has a large high contrast LCD and easy-to-use occupant controls. Additional remote RS sensors can easily be networked to the Room Controller for large spaces. Key Features and Benefits • Attractive, low profile enclosure in a neutral color complements any space. • Powerful zone controller for Fan Coil Unit, Heat Pump, Unit Ventilator, small Roof Top Units and similar applications. • Standalone or networked using native BACnet communications over a high speed ARCNET 156 Kbps or BACnet MS/TP network. • Precise built-in 10K Ohm thermistor with +0.36 F (0.2 C) standard accuracy and less than 0.18 F (0.01 C) drift over a ten year span – requires no maintenance or re-calibration. • Large easy-to-read high contrast LCD displays zone temperature, outside air temperature, heating and cooling setpoints, time, schedule and local override. • Uses a high speed 16-bit microprocessor with 1 Mbyte Flash and 512 Kbyte of RAM for unparalleled performance and flexibility – firmware upgrades are ‘flashed-in’ remotely. • The RC642 Room Controller is part of a full line of zone controllers which include Universal Inputs, relay driven Binary Outputs and 0-10V-dc Analog Outputs. • Battery backed real-time clock for standalone operation and local storage of trend data. • Rnet port supports Automated Logic’s complimentary line of RS room sensors and provides local access to the system. • Built-in control algorithms can easily be selected by DIP switches. • Custom programmed sequences of operation using Automated Logic’s ® powerful graphical programming tool, EIKON -LogicBuilder. • Mounts on standard electrical boxes for easy installation. RC642/RC642D Specif ications ® BACnet Support: Conforms to the Advanced Application Controller (B-AAC) Standard Device Profile as defined in ANSI-ASHRAE Standard 135-2004 (BACnet) Annex L. Tested to Protocol Revision 9 Communication: The following ports are available on the RC642 module: EIA-485 port for ARCNET 156 Kbps or MS/TP (9600 bps – 76.8 Kbps). Local access port for system start-up and troubleshooting. RC642D Rnet port: Supports up to four RS sensors for averaging or high/low. RC642 Rnet port: Supports up to four RS sensors and one RS Pro sensor for averaging or high/low. Digital Outputs: Six digital outputs, relay contact rated at 1A max @ 24V-ac, configured normally open. Universal Inputs: Four universal inputs with 10 bit A/D resolution. Two are configurable for dry contact or thermistor; and two for either dry contact, thermistor or 0-5 V-dc. Analog Outputs: Two analog outputs, 0-10V-dc with 8-bit resolution, 10mA maximum. Microprocessor: High speed 16-bit microprocessor with ARCNET communication co-processor. Memory: 512 Kbyte non-volatile battery-backed RAM, 1 MByte Flash memory, 16-bit memory bus. Battery: 7 year Lithium BR325 battery provides minimum 10,000 hours of data retention during power outage. Status Indicators: LED status indicators for EIA-485 communication, running, error and power. Module Addressing: Rotary dip switches for intuitive network addressing of modules. Protection: Built in surge and transient protection circuitry for power, communications and I/O. Listed by: UL916 (Canadian Std C22.2 No. 205-M1983), CE, FCC Part 15 – Subpart B – Class A, CE EN50082-1997 Environmental Operating Range: 0ºF to 130ºF (-17.8ºC to 54.4ºC); 10 -90% relative humidity, non-condensing. Power Requirements: 24V-ac ± 10%, 26V-dc (25 V min, 30 V max), 50-60Hz, 12VA Physical: Plastic enclosure, removable screw-type terminal blocks. Weight: 10.6 oz. (.03 Kg) Dimensions: Overall Mounting Width: 6.8 inches (17.3 cm) 2 inches x 4 inches electrical box U.S. Height: 4.3 inches (10.9 cm) 4 inches x 4 inches electrical box U.S. Depth: 1.3 inches (3.3 cm) 35mm BS4662 single gang electrical box RC642 © United Technologies Corporation 2013. All rights reserved. Copyright Policy BACnet is a registered trademark of ASHRAE. All other trademarks are the property of their respective owners. Specifications are subject to change without prior notice. Automated Logic is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp RC642_CS_r4 Made in the USA