Critical Environment Technologies CGAS-AP Installation Manual
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Critical Environment Technologies CGAS-AP Installation Manual

Indoor public spaces
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Installation Manual
Rev. A | 2020.11
cGas Detector
Indoor Public Spaces
www.critical-environment.com

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  • Page 1 Installation Manual Rev. A | 2020.11 cGas Detector Indoor Public Spaces www.critical-environment.com...
  • Page 2 Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 NEED MORE INFORMATION? This is the Installation Manual for the cGas Detector models CGAS-AP and CGAS-DP for indoor public spaces. The Operation Manual can be downloaded/viewed on our website: https://www.critical-environment.com/media/download/manuals/CGAS-AP-...

  • Page 3: Table Of Contents

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual TABLE OF CONTENTS 1 POLICIES .......................6 1.1 Important Note ..................6 1.2 Warranty Policy ..................7 1.3 Service Policy ..................7 1.4 Copyrights ....................8 1.5 Disclaimer ....................8 1.6 Revisions ....................
  • Page 4 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 6.3 Mounting the Transmitter ..............26 6.3.1 Wet Environment Considerations ..........27 6.3.2 EMI and RF Interference Considerations ........27 6.3.3 Mounting Height (Sensor Dependent) ........27 6.4 Enclosure Mounting Components ............
  • Page 5 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 8.2.3 Modbus® Holding Registers ............50 8.3 Confi guring BACnet® Settings ............50 8.3.1 Change BACnet® MAC Address ..........50 8.3.2 Change BACnet® Instance ID ............51 8.3.3 Change BACnet®...

  • Page 6: Policies

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 1 POLICIES 1.1 Important Note Read and understand this manual prior to using this instrument. Carefully read the warranty policy, service policy, notices, disclaimers and revisions on the following pages.

  • Page 7: Warranty Policy

    The product is only to be used for the purposes stated in the manual. Critical Environment Technologies is not liable for auxiliary interfaced equipment or consequential damage.

  • Page 8: Copyrights

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 individual warranties). Should your instrument require non-warranty repair, you may contact the distributor from whom it was purchased or you may contact CETCI directly. Prior to shipping equipment to CETCI, contact our offi ce for an RMA #. All returned goods, regardless of reason, must be accompanied with an RMA number.

  • Page 9: Revisions

    Should you detect any error or omission in this manual, or should you want to inquire regarding upgrading the device’s fi rmware, please contact CETCI at the following address: Critical Environment Technologies Canada Inc. Unit 145, 7391 Vantage Way, Delta, BC, V4G 1M3, Canada Toll Free: +1.877.940.8741...

  • Page 10: Introduction

    MS-TP RS-485 or Modbus® RTU RS-485 output for communicating with a controller, Building Automation System or other control panel. The analog models (CGAS-AP) have one analog output signal. Both the analog and digital models may be confi gured with an internal gas...

  • Page 11: Key Features

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual sensor or a remote refrigerant sensor (dongle). The internal sensor model is ideal for mounting fl ush with the wall. The remote refrigerant sensor model has a 9m / 29.5 ft dongle cable that is ideal for use in packaged terminal air conditioner (PTAC) applications.

  • Page 12: Instrument Specifications

    400 g / 14 oz Size 127.7 mm x 119 mm x 40 mm / 5.0 in x 4.7 in x 1.6 in 9 m / 29.5 ft (only available with the CGAS-AP-RD Dongle Cable Length and CGAS-DP-RD models) USER INTERFACE...
  • Page 13 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual Initiate calibration and menu options with internal UP, Push Buttons DOWN and ENTER push buttons Internal port for USB memory stick connection for USB Port fi eld confi guration/fi rmware upgrades Audible Alarm none ELECTRICAL...
  • Page 14 1 rev 14) RS-485 Stop bits: 1 Data bits: 8 Analog Output One linear 4 - 20 mA output (CGAS-AP models) Relay (Option - RLY) One SPDT dry contact, rated 30 volts, 2 amps max Available with CO or CO gas confi gurations...
  • Page 15 Detector for Indoor Public Spaces - Installation Manual CERTIFICATION Model: CGAS-DP-XXX S/N: CGASDP1909A0010 Model: CGAS-AP-XXX S/N: CGASAP1909A0010 Rating: 16-30 VDC, 3W, Class 2 12-27 VAC, 50-60 Hz, 3VA, Class 2 CERTIFIED FOR ELECTRIC SHOCK & ELECTRICAL FIRE HAZARD ONLY. LA CERTIFICATION ACNOR COUVRE UNIQUEMENT LES RISQUES DE CHOC ELECTRIQUE ET D’INCENDIE D’ORIGINE ELECTRIQUE.

  • Page 16: Enclosure Dimensions

    3.2 Enclosure Dimensions 4 SENSOR SPECIFICATIONS 4.1 Analog - Single Channel Sensors PART NUMBER SENSOR RANGE LIFESPAN CGAS-AP-CO2-5K Infrared Carbon Dioxide (CO 0 - 5,000 ppm ~ 8 years CGAS-AP-CO2-5% Infrared Carbon Dioxide (CO 0 - 5% vol ~ 8 years...

  • Page 17: Digital - Single Channel Gas Sensors

    0 -2,000 ppm ~ 5 years (internal) Solid State R410A Refrigerant CGAS-AP-SR507A 0 -2,000 ppm ~ 5 years (internal) CGAS-AP-RD + Solid State R410A Refrigerant 0 -2,000 ppm ~ 5 years ESH-B-SR410A (remote dongle) CGAS-AP-RD + Solid State R410A Refrigerant...

  • Page 18: Digital - Dual Channel Gas Sensors

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 User selectable PM1, PM2.5 (default) or PM10 CGAS-DP-PM Particulate sensor CGAS-DP-SLP PID TVOC sensor 0 - 30 ppm Solid State R410A Refrigerant CGAS-DP-SR410A 0 -2,000 ppm ~ 5 years (internal) Solid State R410A Refrigerant CGAS-DP-SR507A...

  • Page 19: Rh & Temperature Sensor (Option -Rht)

    For analog CGAS-AP models with an internal gas sensor and the optional RH & Temperature sensor, the analog output default is the gas reading. Because the CGAS-AP is a single channel device (it has only one analog output), the RH and temperature readings are for display purposes only; there is no current output or signal back to a controller or BAS/DDC for RH or temperature readings.

  • Page 20: Instrument Features

    LCD Display Œ Display Allows gas diffusion into sensor • Sensor Vents Remote refrigerant sensor for Remote Dongle hotel applications Ž (ie. ESH-B-SR410A) (for CGAS-AP-RD and CGAS-DP-RD models only) © 2020 All rights reserved. Data subject to change without notice.

  • Page 21: Analog - Interior System Layout

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 5.2 Analog - Interior System Layout • Œ • • ‘ ’ Front Side of Circuit Board “ Œ Ž • ” ” • ’ • ” Back Side of Circuit Board (removed from...
  • Page 22 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 NUMBER FEATURE FUNCTION Screws hold hinges together, fastened Œ Hinge Assembly from the back of the enclosure Pluggable terminal for 3-wire power and • Wiring Terminal analog signal output Ž...

  • Page 23: Digital - Interior System Layout

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 5.3 Digital - Interior System Layout • Œ • • ‘ ’ Front Side of Circuit Board “ Œ Ž • ” ” • ’ • ” Back Side of Circuit Board (removed from...
  • Page 24 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 NUMBER FEATURE FUNCTION Screws hold hinges together, fastened Œ Hinge Assembly from the back of the enclosure Pluggable terminal for 4-wire daisy chain • Wiring Terminal power and digital signal output Ž...

  • Page 25: Installation

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual Termination End of line termination jumper/network Jumper termination resistor 6 INSTALLATION The sensor(s) in the cGas Detector go through a burn in period at our factory prior to shipping so it is ready for operation upon arrival. When installing the cGas Detector for the fi...

  • Page 26: General Safety Warnings

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 6.1 General Safety Warnings The cGas Detector is intended for indoor use, permanently mounted at an appropriate height for the monitoring of the target gas. Refer to Section 6.3 Mounting the Transmitter.

  • Page 27: Wet Environment Considerations

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual screws. A large entry point is provided in back of the enclosure. Refer to Section 6.4 Enclosure Mounting Components. Care should be taken to ensure that the vents of the cGas Detector are not obstructed in order to maximize the sensor’s exposure to the environment being monitored.
  • Page 28 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 Heavier than air gases fall towards the fl oor and collect in low lying areas requiring the gas detector to be mounted 6 in / 15 cm from the fl oor. Lighter than air gases fl...

  • Page 29: Enclosure Mounting Components

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 6.4 Enclosure Mounting Components 6.4.1 Enclosure Base • Œ • • ‘ Œ • Ž NUMBER FEATURE Holes for the screws to hold hinges together, secured Œ from the back of the enclosure Entry Point 6 x 2 cm / 2.35 x 0.8 in •...

  • Page 30: Enclosure Bottom

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 Slots for the circuit board harness tabs to slide into, ‘ • secure with the singular screw (see 6.4.2 Enclosure Bottom Œ NUMBER FEATURE Sensor shroud with small barb hose fi tting to attach to Œ...
  • Page 31 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual requirements of the system will be supplied by RPS-24VDC Remote Power Supply devices. In an analog confi guration, a dedicated 4-20 mA signal wire is connected to each transmitter and only the ground and power wires are daisy chained.

  • Page 32: Analog Wire Gauge Vs Run Length

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 6.5.2 Analog Wire Gauge vs Run Length The table below shows the maximum cable length between the cGas Detector and the controller for normal installations (a separate signal line from the controller for each cGas Detector is required).

  • Page 33: Digital Wire Wiring Connections

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 6.5.3 Digital Wiring Connections All communications (network) wiring must be in shielded cabling. Wire shielding must be connected together at each device and taped off so it cannot cause a short on the circuit board when the door is closed.
  • Page 34 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 Wiring Example: 4-Wire VAC If the cGas Detector is being connected to a BAS, DDC or other control panel then either a 24 VDC power supply or 24 VAC Class 2 or better transformer needs to be used.

  • Page 35: Digital Wire Gauge Vs Run Length

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 6.5.4 Digital Wire Gauge vs Run Length It is important to use the appropriate gauge of wire for the required length of the run to ensure suffi cient available voltage, noise reduction, dissipation of heat, and overall optimum performance along the entire wire run.

  • Page 36: Wiring Remote (Dongle) Sensor To The Smart Board

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 Minimum Cable Length vs Size (AWG) for Digital Communication and Power Supply Cable Length # of Sensors Meters Feet 0.3 to 1552 1 to 500 AWG # 153 to 305 501 to 1, 000 AWG #...

  • Page 37: Wiring The Relay Smart Board (Option -Rly)

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 6.5.6 Wiring the Relay Smart Board (Option -RLY) The cGas Detector can be ordered with Option -RLY, an SPDT dry contact relay rated 30 volts, 2 amps max. The relay components are connected to a circuit board that plugs into one of the plug &...

  • Page 38: Basic System Operation

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 7 BASIC SYSTEM OPERATION The cGas Detector continuously monitors target gas concentrations on one or two confi gured channels. It must be connected to a controller, control panel or BAS / BMS / DDC system;...

  • Page 39: Navigating The Menu Structure

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 7.2 Navigating the Menu Structure The three programming push-buttons inside the enclosure to the right of and on the edge of the display are used to navigate through the cGas Detector menu structure.
  • Page 40 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 DESCRIPTION CODE NAME • Test Digital Output 0001 Test Menu • Test Analog Output • Test Relay * If confi gure as a Modbus® device • Comm Type •...
  • Page 41 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual • Selected Channel • Enable/Disable Channel 3022 Confi g Menu • Read from Sensor • Write to Sensor • Selected Channel • Set Calibration Gas • Calibrate Zero •...

  • Page 42: Change Units ( O C Or O F) Of Temperature Readings

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 From the main display, press ENTER. Enter passcode 3032 using the UP button and ENTER button. Enter Password 3032 Press ENTER to access the Calibrate Menu. Calibrate Menu Press Enter In the Selected Channel menu, if Temperature is not displayed, press ENTER and use the UP button to scroll to fi...

  • Page 43: Test Functions

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual number of degrees and the Humidity offset value is a percentage, both in either direction of 0. From the main display, press ENTER. Enter passcode 3032 using the UP button and ENTER button. Enter Password 3032 Press ENTER to access the Calibrate Menu.

  • Page 44: Test Analog Output

    Rev. A | 2020.11 7.6.1 Test Analog Output (CGAS-AP models) For analog cGas Detector models (CGAS-AP), testing the analog output allows you to determine if the installation was successful. Do this by sending a predetermined analog signal to the DDC or BAS to test that the correct signal is being sent out and the confi...

  • Page 45: Test Digital Output

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 7.6.2 Test Digital Output For digital models, for each gas channel, you can manually enter a gas reading value of your choice (within the range of the sensor) that will be sent over the digital network to test the connection and confi...

  • Page 46: Test Relay

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 Confirm? Test Reading >10.0 PPM NO2 >Y 10.0 PPM NO2 The test will start as soon as you press ENTER to confi rm and will remain in the test mode as long as the Test Reading screen remains untouched, up to 5 minutes.

  • Page 47: Modbus & Bacnet Configuration

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual 7 MODBUS AND BACNET CONFIGURATION NOTE: This entire chapter applies to CGAS-DP (digital) models only. The cGas Detector can be changed from Modbus® to BACnet® or vice versa in the fi...

  • Page 48: Confi Guring Modbus® Settings

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 8.2 Confi guring Modbus® Settings If a complete system (controller with digital transmitters and peripherals) is ordered from the factory, it will be shipped preconfi gured with the appropriate Modbus®...

  • Page 49: Change Baud Rate

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual Enter Password 1001 Press ENTER to access the Basic Menu. Basic Menu Press Enter The Comm Type displayed should be MODBUS. Press the UP button until you see Comm MAC.

  • Page 50: Modbus® Holding Registers

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 choose from: • 9,600 • 14,400 • 19,200 (default, confi gurable) • 38,400 • 57,600 • 76,800 • 115,200 Select the preferred baud rate by pressing ENTER to save and Exit. 8.2.3 Modbus®...

  • Page 51: Change Bacnet® Instance Id

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual The Comm Type should be BACnet. Press the UP button until you see Comm MAC. Comm Type Comm MAC BACnet Press ENTER. Use the UP button to change the numeric value. Move to the next digit by pressing ENTER.

  • Page 52: Change Bacnet® Baud Rate

    Select the preferred baud rate by pressing ENTER to save. 8.3.4 BACnet® PICS Information Critical Environment Technologies Canada Inc. (CETCI) has been granted the BACnet® Testing Laboratories (BTL) certifi cation for the CGAS Detector Family upon passing the BTL requirements for the BACnet® Smart Actuator (B-SA) designation.

  • Page 53: Maintenance

    Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual For a copy of the BACnet® Protocol Implementation Conformance Statement (PICS) information go to BACnet® International website: https://www.bacnetinternational.net/btl/index.php?m=81 or visit our website: https://www.critical-environment.com/media/download/btlpics/CGAS-Family- BACnet-PICS.pdf If you have specifi c requirements, have any questions or require clarifi cation about the BACnet®...

  • Page 54: Trouble Shooting

    cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 11 TROUBLE SHOOTING cGas Detector won’t power up. (blank display) Is the power properly connected? Check the wiring connections. Refer to Section 6.5 Wiring Connections. Display shows “ZERO FAULT” message. If the zeroing process fails, the cGas Detector will show a Zero fault., which means the cGas Detector was unable to complete the zeroing (null) process.
  • Page 55 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual Device cannot be seen by the Controller and/or the BAS / DDC on the BACnet® network. • Check the Baud rate. All devices in the network must have the same Baud rate.
  • Page 56 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 cGas cannot communicate with the smart board. Ensure the smart board is installed and Smart Board Fault installed on the correct side (left) if a single channel unit (without relay). Otherwise power cycle or replace the sensor smart board.
  • Page 57 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 58 cGas Detector for Indoor Public Spaces - Installation Manual Rev. A | 2020.11 NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 59 Rev. A | 2020.11 cGas Detector for Indoor Public Spaces - Installation Manual NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 60 CGAS-AP-DP-20201119-Rev-A-Installation Unit 145, 7391 Vantage Way, Delta, BC V4G 1M3 Canada Tel: +1.604.940.8741 Toll Free: +1.877.940.8741 www.critical-environment.com © 2020 All rights reserved. Data subject to change without notice.

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