Contemporary Controls BASstat BAST-221C-BW2 User Manual
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Contemporary Controls BASstat BAST-221C-BW2 User Manual

Wireless multi-stage thermostat
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BAST-221C/CH-BW2
Wireless BACnet Communicating Thermostat for Multi-Stage Heating/Cooling/Ventilation
BASstat
Wireless Multi-Stage Thermostat
User Manual
# UM-15090500-AA1

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Summary of Contents for Contemporary Controls BASstat BAST-221C-BW2

  • Page 1 BAST-221C/CH-BW2 Wireless BACnet Communicating Thermostat for Multi-Stage Heating/Cooling/Ventilation BASstat Wireless Multi-Stage Thermostat User Manual # UM-15090500-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.

  • Page 3: Table Of Contents

    Contents Introduction ........................3 Features and Benefits ....................4 Product Image and Main Features ................5 Specifications ........................7 Inputs .......................... 7 Outputs ........................7 Communication ......................7 Electrical ........................7 Environmental ......................8 Electromagnetic Compatibility ..................8 Mechanical (all dimensions are in mm) ............... 9 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 • BTL listed with B-ASC device profile for seamless integration into BACnet networks • 24VAC (+/-10%) power input • Manual-changeover or Auto-changeover control types • BACnet/IP over Wi-Fi can be integrated into any 802.11 b/g/n Wi-Fi network •...

  • Page 6: Product Image And Main Features

    Product Image and Main Features BASstat 221C-BW2 UM-15090500-AA1 Page 5...
  • Page 7 BASstat 221CH-BW2 UM-15090500-AA1 Page 6...

  • Page 8: Specifications

    2 Specifications Inputs Item Description Temperature Display Range 14 to 140°F (-10 to +60°C) Temperature Display Resolution 0.1°F (0.1°C) Temperature Accuracy ±1.8°F (±1.0°C) with all outputs off Setpoint Range 32 to122°F (0 to 50°C) in 0.5° (°F or °C) increments Remote Temperature Sensor Provision for NTC Type 3kΩ...

  • Page 9: Environmental

    Environmental Item Description Operating Temperature 32°F 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-221C 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 10: Mechanical (All Dimensions Are In Mm)

    Mechanical (all dimensions are in mm) Wiring: 14 to 22 AWG wires or 1.5mm wires 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-15090500-AA1 Page 9...
  • Page 11 UM-15090500-AA1 Page 10...

  • Page 12: Installation

    3 Installation The BASstat is intended for surface-mount installation at eye-level 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 13: 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 14: Operation

    4 Operation User Mode User-side control is accomplished with six buttons – MODE (Heat, Cool, or Ventilate), FAN (Auto or Continuous), UP, DOWN, SET, and POWER. There are also options to lock select buttons or all buttons on the thermostat 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 15 User Mode Thermostat Operation Item Description Remarks Normal Display Display current room or set-point Use the (SP) parameter in temperature the Engineering Menu or [MSV6] Display Option for BW2 or [MSV7] Display Option for B2 model to choose Current room or Set- point temperature on display.

  • Page 16: Control Type

    User Mode Flow Chart Control Type Control Type, System Mode and Algorithm Configuration The BAST-221C supports two different control types, selectable in Engineering Menu item (tyPE) BACnet object [MSV7]. Control type is only configurable by the installer using Engineering Mode Menu or BACnet supervisor.
  • Page 17 Heat or Ventilation@Heat when the thermostat is in Heat mode (automatic), and Cool or Ventilation@Cool when the thermostat is in Cool mode (automatic). Dual Stage Heat and Cool with Manual Changeover – In this control type the thermostat will wait for a command from user or BACnet supervisor to switch between Cool and Heat modes. The user will be presented with a choice of Heat or Ventilation@Heat when the thermostat is in Heat mode, and Cool or Ventilation@Cool when the thermostat is in Cool mode.
  • Page 18 System Mode • The default control type is 2-stage cooling and heating with automatic changeover. This makes the thermostat operate fully stand-alone. Control Type can be selected in (tyPe) or [MSV7]. Manual Changeover control type allows restriction of mode selection to Cool only or Heat only in applications where necessary.
  • Page 19 This feature is useful for thermostat models with multiple fan speeds. • Fan Mode can be toggled between AUTO or CONTINUOUS by using the FAN button on the thermostat (user) or BACnet object [MSV0] Fan Mode (BACnet supervisor). By default, this value is set to “Auto(1)”, the AUTO icon is displayed, and the fan will be controlled automatically.

  • Page 20: Engineering Mode Menu

    Engineering Mode Menu Thermostat configuration can be performed using the engineering mode menu described below or 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 21 loops back to first item at the end of items in menu. Press the MODE button to enter a submenu item. • Press the UP or DOWN button to change the setting in the submenu item or hold to speed up setting value change. Press the MODE button to confirm the setting and return to menu item selection.
  • Page 22 Engineering Menu Items Table °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 23 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range 0: N.O. ESI (DI1) digital sensor contact definition 1: N.C. rE-C Not used rE-H Not used 0: built-in Present Temperature is getting from built-in 1: remote sense temperature Sensor, remote temperature 2: assigned sensor, or assigned through communication through...
  • Page 24 °C Scale °F Scale Step Item Mnemonic Description Default Range Default Range 0: Cooling Only 1: C&H Manual tyPE 2: C&H Auto Control Type 3: Heating Only NOTE: Cool only and Heat only types disabled OPL2 Minimum Output for AO2 (not used) SPA2 Span Offset for AO2 (not used) CO2L...
  • Page 25 °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...
  • Page 26 Lock Function Setup and Examples The 16-bit binary encoded decimal register accessed through Lock [AV17] BACnet object and LOC engineering menu item is used to enable/disable features in the thermostat. The first 10 bits are used (bit 0 ~ bit 9), bits 10~15 are reserved/unused. Bits are represented by their decimal values and are added or subtracted to toggle from “0”...

  • Page 27: Bacnet Objects And Network Configuration

    All configuration parameters are settable through use of the buttons on thermostat by entering the 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 on the bench using a Wi-Fi enabled laptop/computer/tablet/smart phone and Contemporary Controls’ free BACnet Discovery Tool.
  • Page 28 This requires connecting to the thermostat as an access point for initial configuration using a Wi-Fi enabled laptop/computer/tablet/smart phone. Look for the BASstat- 221C-BW2 with its unique SSID of “WiFi-122B-xxxx” and no access point passphrase by default (simply click to connect to Access Point). The digits “xxxx”...
  • Page 29 After initial connection using laptop or tablet or smart phone, the Wi-Fi mode in the thermostat can be changed to Infrastructure mode. The local Wi-Fi router/access point can be selected from the Available AP drop-down list, or an AP SSID can be entered manually. Enter the AP Passphrase to authenticate and connect to the AP.
  • Page 30 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 31 Click OK on the confirmation message and wait 20 seconds for the reboot process to complete. 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.
  • Page 32 Reset Settings The BASstat will store configuration in the event of power loss. If configuration fails or the thermostat needs to be configured to use a different Wi-Fi access point, the thermostat must be reset and reconfigured. There are 2 reset settings options for the Wi-Fi thermostat: •...
  • Page 33 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 34 BACnet Object Table - Wi-Fi Model (BACnet/IP) Object name Type & Instance Object Property Range (Readable/Writable) BACnet Thermostat Device 100001 Model Name (R) Application Software Version (R) Object Identifier (R) Object Name (R/W) 32 characters (max.) Type & Readable/ Object name Description Range and Definition Instance...
  • Page 35 Type & Readable/ Object name Description Range and Definition Instance Writable -999~9999: -99.9～999.9 Current Dew Point Current Dew Point (221CH AI 5 °C/°F models only) 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...
  • Page 36 Type & Readable/ Object name Description Range and Definition Instance Writable Integral-Cycle Integral Time and 0~500 (Sec.) AV 10 Time Output Cycle Time Analog Minimum Minimum Output Voltage AV 11 Output for AO1 in Digital Value When 0~125 (LSB) Reach Low Limit for AO1 Span Offset for AO1 Span Offset for AO1 -55~0 (LSB)
  • Page 37 Type & Readable/ Object name Description Range and Definition Instance Writable Modulating/floating Percentage of Modulating/ 0～100 (0%～100%) Control Out Floating Control Output AV 19 Percentage 0~4194302 Changing this value NOTE: needs to unlock modification for communication parameters in advance. Device Instance AV 20 Device Instance i.e., AV17=0~255 or...
  • Page 38 Type & Readable/ Object name Range and Definition Instance Writable Description Humidity Input Low 0~1000 (0.0～100.0 Humidity Input Low Value Value AV 39 %RH) Humidity Input High 0~1000 (0.0～100.0%RH) Value Humidity Input High Value AV 40 Minimum Fan Minimum Fan Output at Auto Output Fan Mode (for Modulating 0%~Reg 51...
  • Page 39 Type & Readable/ Object name Description Range and Definition Instance Writable 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...
  • Page 40 Type & Readable/ Object name Description Range and Definition Instance Writable On-Off Control On/Off Status of Thermostat 0: Off, 1: On BV 5 0: °C Temperature Scale BV 6 °C/ °F 1: °F Relay 1 Control On/Off Control of Relay 1 0: Off, 1: On (Cooling Stage 1) Relay 2 Control...

  • Page 41: Warranty

    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 42: Returning Products For Repair

    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 Tel: +44 (0)24 7641 3786...

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Basstat bast-221ch-bw2

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