Related Manuals for Contemporary Controls BASstat BAST-421C-BW2
Summary of Contents for Contemporary Controls BASstat BAST-421C-BW2
- Page 1 BAST-421C-BW2 Wireless BACnet Communicating Thermostat for Modulating Fan Coil Operation BASstat Wireless Modulating Thermostat User Manual #UM-15093500-AA1...
- Page 2 Trademarks BASautomation, Contemporary Controls, and CTRLink are registered trademarks of Contemporary Control Systems, Inc. BACnet is a registered trademark of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Powered by Sedona Framework is a trademark of Tridium, Inc. Other product names may be trademarks or registered trademarks of their respective companies.
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Page 3: Table Of Contents
Contents Introduction ........................ 3 Features and Benefits ..................4 Product Image and Main Features ............... 5 Specifications ......................6 Inputs ........................6 Outputs ........................ 6 Communication ....................6 Electrical ......................6 Environmental ...................... 7 Electromagnetic Compatibility ................7 Mechanical (all dimensions are in mm) ..............8 Installation ......................... -
Page 4: Introduction
Optionally, the buttons could be locked to limit user access to Engineering Menu after installation is complete. The second method is configuring the thermostat over the BACnet network using a BACnet client device or software such as Contemporary Controls’ free BACnet Discovery Tool (BDT). -
Page 5: Features And Benefits
Features and Benefits Stand-alone thermostat algorithm or fully BACnet network-controllable • • B-ASC device profile for integration into BACnet networks 24VAC (+/-10%) power input • • BACnet communication -BACnet/IP over Wi-Fi and can be integrated into any 802.11 b/g/n Wi-Fi network Suitable for 4-pipe modulating heat/cool control applications with manual or automatic •... -
Page 6: Product Image And Main Features
Product Image and Main Features BASstat 421C-B2 and BASstat 421C-BW2 Page 5 UM-15093500-AA1... -
Page 7: Specifications
2 Specifications Inputs Item Description Temperature Display Range -22 to 248°F (-30 to 120.0°C) with suitable sensor Temperature Display Resolution 0.1°F (0.1°C) Temperature Accuracy ±1.8°F (±1.0°C) with all outputs off Energy Savings Input Provision for external occupancy sensor Setpoint Range 32-122°F (0-50°C) in 0.5°... -
Page 8: Environmental
Environmental Item Description Operating Temperature 32° to 122°F (0 to 50°C) Storage Temperature 14° to 140°F (-10 to +60°C) Relative Humidity 5 to 95% non-condensing Electromagnetic Compatibility The BAST-421C-BW2 complies with the following specifications and bears the CE mark in accordance with the provisions of the Electromagnetic Compatibility (EMC) Directive 2004/108/EC based on the following specifications: Standard... -
Page 9: Mechanical (All Dimensions Are In Mm)
Mechanical (all dimensions are in mm) Mounts directly onto wall, panel, standard 65×65mm junction box (hole pitch 60 mm) or standard 2×4-inch vertical junction box (hole pitch 83.5mm). Width: 94mm Height: 118mm Depth: 34mm UM-15093500-AA1 Page 8... -
Page 10: Installation
3 Installation The BASstat 421C-BW2 is intended for surface-mount installation on an interior wall, away from direct sunlight or direct air movement. The display (top half) can be removed from its base by loosening the small Philips screw at the bottom of the display. Once the display is removed from the base, the base can be mounted onto the wall with appropriate fasteners. -
Page 11: Power Supply Precautions
Power Supply Precautions Internally, the BASstat utilizes a half-wave rectifier and can share the same AC power source with other half-wave rectified devices. Sharing AC power with full-wave rectified devices is NOT recommended. AC power sources that power several half-wave devices have a common secondary connection called COMMON, LO, or GROUND. -
Page 12: Operation
4 Operation User Mode User-side control is accomplished with six buttons – MODE (Heat, Cool, or Ventilate), FAN (Auto or On), UP, DOWN, SET, and POWER. There are also options to lock the panel buttons to limit user access if so required. A large LCD display indicates setpoint, space temperature, occupancy status, and current mode of operation using graphical icons. - Page 13 User Mode Thermostat Operation Item Description Remarks 1 Normal Display Display current room or set-point Use the (SP) parameter in the temperature Engineering Menu or [MSV6] Display to choose Current room or Set- point temperature on display. Set the desired temperature 2 Temperature The [AV0] / [AV3] Cool / Heat Occupied and [AV8] / [AV9]...
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Page 14: Control Type
User Mode Flow Chart Control Type Control Type, System Mode and Algorithm Configuration System modes available to the user are dependent on control type. 4-Pipe Cooling or Heating with Auto Changeover – This the default control type in this thermostat. Mostly used for standalone operation. The thermostat will switch between Cool and Heat modes automatically. - Page 15 BACnet network control mode, use the Lock [AV18] object bit 9: Control DOs by thermostat algorithm “0” (default) or BACnet supervisor “1” (add decimal=512). Cool Only and Heat Only modes (nullified/disabled in firmware) are control types listed in the BACnet object and Engineering Menu object but are not available for use. Control type is only configurable by the installer using Engineering Mode Menu or BACnet supervisor.
- Page 16 Floating Deadband The Heat and Cool temperature setpoints could be “attached” together. This means • that as one setpoint is adjusted and “hits” against the deadband region, it will “push” the deadband region and the other setpoint along the temperature setpoint axis to allow for adjustment while maintaining the configured deadband.
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Page 17: Engineering Mode Menu
Engineering Mode Menu Thermostat configuration can be performed using the engineering menu or by controlling BACnet objects using a BACnet client tool such as Contemporary Controls free BACnet Discovery Tool (BDT). It is highly suggested that engineering mode be operated by trained installers only, because it is related to system parameters that will affect the control results. - Page 18 to User mode. Engineering Menu Flow Chart Page 17 UM-15093500-AA1...
- Page 19 Engineering Menu Items Table BAST-421C-BW2 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range Deadband 0~10 0~18 0.5 (°C/°F) Unoccupied(ESI) cooling set point ESIC 25~35 82.5 77~95 1.0 (°C/°F) Unoccupied(ESI) heating set point ESIH 10.0~22.0 50.0~72.0 1.0 (°C/°F) Integral Time and Output Cycle Time 0~500 0-500...
- Page 20 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range 0: N.O. ESI (DI1) digital sensor contact definition 1: N.C. 0 (direct) Modulating Cooling direct/ reverse signal rE-C 1 (reverse) output 0 (direct) Modulating Heating direct/ reverse signal rE-H 1 (reverse) output...
- Page 21 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range 1: 4-Pipe cooling or heating Manual tyPE Changeover Control Type 2: 4-Pipe heating and cooling auto Changeover OPL2 Minimum Output for AO2 0(0V) 0~125 0 (0v) 0~125 1 (LSB) (0.044V) SPA2 Span Offset for AO2...
- Page 22 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range Phy3 MAC address 5th & 6th bytes hhhh hhhh h: 0~F in hex IP-1 1st byte of IPv4 address 0~255 0~255 IP-2 2nd byte of IPv4 address 0~255 0~255 IP-3 3rd byte of IPv4 address...
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Page 23: Bacnet Objects And Network Configuration
Engineer Menu, or once installed on the BACnet network, configuration can also be altered using BACnet commands. Network command-based configuration can also be accomplished using a Wi-Fi enabled laptop/computer/tablet/smart phone and Contemporary Controls’ free BACnet Discovery Tool. Wi-Fi Communication Configuration... - Page 24 Once connected to the thermostat as an access point, open its web page by typing its default address of 192.168.0.1 with admin for username and no password. Web page pictured below will be presented for IP Network Configuration. The default IP configuration is shown below. After initial connection using laptop or tablet or smart phone, the Wi-Fi mode in the thermostat can be changed to Infrastructure mode.
- Page 25 random the better. Use a mix of letters (uppercase and lowercase), numbers, and symbols. • Do not reuse or repeat passwords across router installations or job sites. Change Wi-Fi password regularly (not required but very secure). Provides guidelines for building •...
- Page 26 A reboot of the thermostat is required for new IP configuration to take effect. Click the Save & Restart button to reboot the thermostat, and you will be prompted to confirm the restart. Click OK to Save New Settings and Restart or click Cancel to revisit IP configuration. When OK is clicked, a confirmation is displayed to indicate configuration is stored in the thermostat’s EEPROM.
- Page 27 While rebooting, the thermostat will display “DP” icon in the lower right corner to indicate it is in the process of searching and connecting to the AP. Once the “DP” stops flashing, the thermostat has successfully connected to Wi-Fi access point. After reboot of the thermostat, the new Infrastructure mode with new IP settings will be used.
- Page 28 • Time to Live is the BBMD registration time. Specify the seconds between successive FDR registrations. Recommended value is 100. A reboot of the thermostat is required for new IP configuration to take effect. Click the Save & Restart button to reboot the thermostat, and you will be prompted to confirm the restart. Click OK to Save New Settings and Restart or click Cancel to revisit IP configuration.
- Page 29 BACnet Object Table BAST-421C-BW2 Object name Type & Instance Object Property Range (Readable/Writable) BACnet Thermostat 788C Device 700001 Model Name (R) Aug 6 2021 Application Software Version (R) Object Identifier (R) Object Name (R/W) 32 characters (max.) Type & Readable/ Object name Description Range and Definition...
- Page 30 -999~9999: -99.9～999.9 Current Dew Point Current Dew Point AI 5 °C/°F Current CO Current CO Reading AI 6 0~3000: 0~3000 ppm Reading Control Valve 0～1000 (0.0%～100.0%) Control Valve Feedback AI 7 Feedback Modulating/ Modulating/ Floating Output 0~100: 0～100 % AI 8 Floating Output 1 1 (Cooling) Modulating/...
- Page 31 Integral-Cycle Integral Time and Output 0~500 (Sec.) AV 10 Time Cycle Time Analog Minimum Minimum Output Voltage in AV 11 Output for AO1 Digital Value When Reach 0~125 (LSB) Low Limit for AO1 Span Offset for AO1 Span Offset for AO1 -55~0 (LSB) AV 12 °C :0~500 (0.0～50.0℃)
- Page 32 Modulating/floating Control Out Percentage of Modulating/ 0～100 (0%～100%) Percentage Floating Control Output AV 19 0~4194302 (Note: Changing this value needs to unlock modification for communication Device Instance AV 20 Device Instance parameters in advance. i.e. AV17=0~255 or 512~768. Please refer to LOCK(AV17) for details) UDP Port No UDP Port Number...
- Page 33 °C:0~500 (0.0～50.0℃) Minimum Cooling AV 39 Minimum Cooling Setpoint Setpoint °F: 320~1220 (32.0~122.0°F Maximum Heating °C:0~500 (0.0～50.0℃) Maximum Heating Setpoint Setpoint AV 40 °F: 320~1220 (32.0~122.0°F) Minimum Fan Minimum Fan Output at Auto Output Fan Mode (for Modulating AV 41 0%~Reg 51 Fan Application) Maximum Fan...
- Page 34 Relay 7 Status Status of Relay 7 0: Off, 1: On BI 9 Dl 1 Status Status of Digital Input 1 0: Off, 1: On BI10 Dl 2 Status Status of Digital Input 2 0: Off, 1: On BI11 Dl 3 Status Status of Digital Input 3 0: Off, 1: On BI12...
- Page 35 On-Off Control On/Off Status of Thermostat 0: Off, 1: On BV 5 0: °C Temperature Scale °C/ °F BV 6 1: °F Relay 1 Control On/Off Control of Relay 1 0: Off, 1: On Relay 2 Control On/Off Control of Relay 2 0: Off, 1: On Relay 3 Control On/Off Control of Relay 3...
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Page 36: Warranty
Changeover 5 Warranty Contemporary Controls (CC) warrants this product to the original purchaser for two years from the product shipping date. Product returned to CC for repair is warranted for one year from the date the repaired product is shipped back to the purchaser or for the remainder of the original warranty period, whichever is longer. -
Page 37: Declaration Of Conformity
7 Declaration of Conformity Additional compliance documentation can be found on our website. www.ccontrols.com United States China United Kingdom Germany Contemporary Control Contemporary Controls Contemporary Controls Contemporary Controls Systems, Inc. (Suzhou) Co. Ltd GmbH Tel: +1-630-963-7070 Tel: +86 512 68095866...
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