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Summary of Contents for Belimo C-22G 5A Series
- Page 1 Belimo Gas Monitors Operating Manual Discover the advantages www.belimo.com...
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Page 2: Table Of Contents
Belimo Gas Monitors Table of contents General description Warnings Applications Features 1.4 Specifications User Interface Model selection guide Installation Placement Wiring Check List Warm-up Time Operation Display Default Alarm Levels Password Protection Changing Settings List of Settings Sequence of Operations 5.0 Network configuration (CAN bus) -
Page 3: General Description
All Belimo gas monitors are factory calibrated and can monitor up to two different gases simultaneously. All monitors feature internal audible and visual alarms, and CAN bus communication that allows for standalone operation. -
Page 4: Warnings
Belimo Gas Monitors 1.1 Warnings • All Belimo gas monitors are designed to monitor for air quality and gas leaks, that under normal conditions, are not constantly present in high concentrations. • All devices must be powered down during installation, and prior to operation and maintenance. -
Page 5: Applications
Belimo Gas Monitors 1.2 Applications • Residential Applications • Vehicle Emissions (CO, NO2) • Private homes • Enclosed parking garages • Apartment buildings • Loading docks • Condominium buildings • Automotive maintenance facilities • Parking garages • Truck maintenance facilities •... -
Page 6: Features
Belimo Gas Monitors 1.3 Features • Gas monitors sense up to two different gases in each device • Stand-alone operation through CAN bus and integrated operation through BACnet MS/TP • Adjustable alarm levels, delays, relays, and analog outputs • Factory calibrated field replaceable sensor modules •... -
Page 7: Model Selection Guide
Belimo Gas Monitors 2.0 Model selection guide Gas Monitors Gas Type Identification Gas Type Identification Model of Number, Top Sensor Number, Bottom Sensor Gas Monitor 22Gxxyy-5A 22Gxxyy-5B 22Gxxyy-5C • CAN bus • CAN bus • CAN bus • BACnet MS/TP • BACnet MS/TP •... - Page 8 Belimo Gas Monitors Relay Units -22G Relay Unit C-22G-50 • CAN bus • 4 relays Sensor Modules Gas Type Identifi cation Number Miscellaneous Accessories -22G Accessory Identifi cation Number...
- Page 9 Belimo Gas Monitors GAS TYPE APPLICATION GAS TYPE ABBREVIATION IDENTIFICATION MEASURING RANGE NUMBER Carbon Monoxide 0...250 ppm Vehicle CO Null H2 0...250 ppm Emissions Nitrogen Dioxide 0…10 ppm Carbon Dioxide 15-003 0…2000 ppm Indoor Air 15-005 0…5000 ppm Quality 15-006 0…10000 ppm...
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Page 10: Installation
Belimo Gas Monitors 3.0 Installation 3.1 Placement Coverage area All Belimo gas monitors are diffusion type monitors. Guidelines for the placement of diffusion type monitors are based on the reasonable delay for gas to get from the source to the sensor. •... -
Page 11: Wiring
Belimo Gas Monitors 3.2 Wiring Use x1 14...20 AWG (2.5...0.5 mm²) or x2 18...20 AWG (0.75...0.5 mm²) for power. Use 22...24 AWG (0.34...0.25 mm²) twisted pair, low capacitance, shielded, communication cable for BACnet MS/TP and CAN bus. 3.2.1 Wiring Diagram -A Model (22Gxx-5A / C-22G-5A) - Page 12 Belimo Gas Monitors 3.2.2 Wiring Diagram -B Model (22Gxx-5B / C-22G-5B) 2 SPDT dry contact relays Binary Relay 1 Relay 2 BACnet input NO COM NC NO COM NC MSTP to limit network switch Transformer To other 24 V AC/DC Shield units...
- Page 13 Belimo Gas Monitors 3.2.3 Wiring Diagram -C Model (22Gxx-5C / C-22G-5C) Transformer To other 24 V AC/DC CAN bus units network 5 VA/W for each unit High (H) Independent circuit Low (L) 120 VAC Shield (on 1st unit only)
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Page 14: Check List
Belimo Gas Monitors 3.3 Warm-up Time All Belimo gas monitors require a warm up time for the sensor elements to stabilize. GAS TYPE IDENTIFICATION DESCRIPTION WARM UP TIME NUMBER 02, 03, 04, 14, 16, 17 02 (Carbon Monoxide) 5 minutes... - Page 15 Belimo Gas Monitors daisy chain to the last device. Maintain the same polarity on each unit. Do not use star, T, or H junctions, only a continuous daisy chain. Make all daisy chain connections at the devices. Connect the shield to “S” on the first device only and join shields together at each additional devices after the first.
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Page 16: Operation
Belimo Gas Monitors 4.0 Operation 4.1 Screen Display Address (See setting 56) Type of gas The LCD shows the gas type, concentration, and alarm level status. If the gas monitor has two sensor modules, the display will alternate between them. -
Page 17: Default Alarm Levels
Belimo Gas Monitors 4.2 Default Alarm Levels Alarm level thresholds are factory set with default values but should be set to suit local regulations. GAS TYPE MEASURING ALARM LEVEL 1 ALARM LEVEL 2 ALARM LEVEL 3 APPLICATION GAS TYPE IDENTIFICATION... -
Page 18: Password Protection
Please try again. 4.4 Password Protection All Belimo gas monitors and communication modules can be password protected with a six-keystroke passcode. This locks the keypad and programmable settings to protect them from being tampered with. The default passcode is ↑↓↑↓↑↓. -
Page 19: List Of Settings
Belimo Gas Monitors 4.5 List of Settings All programmable settings (shown in section 4.4) are factory set with default values to facilitate set up and commissioning and can be changed at any time. Alarm level thresholds are also factory set with default values but should be set to suit local regulations. Upgrading firmware will not affect... - Page 20 Belimo Gas Monitors Programmable settings for sensor B (bottom sensor module) NAME DESCRIPTION RANGE DEFAULT AL1-B Alarm 1 threshold, activates relay 1 by sensor type A1Del Alarm 1 delay on (seconds) 2...1000 A1Off Alarm 1 delay off (seconds) 0...1000 AL2-B...
- Page 21 Belimo Gas Monitors Programmable settings for the gas monitor. (Not specific for each sensor module) NAME DESCRIPTION RANGE DEFAULT R1Rx Receive message to activate relay 1, CAN bus 0...255 R2Rx Receive message to activate relay 2, CAN bus 0...255 R3Rx Receive message to activate sounder and strobe 0...255...
- Page 22 Belimo Gas Monitors Programmable settings for the gas monitor. (Not specific for each sensor module) NAME DESCRIPTION RANGE DEFAULT Warm up delay disables alarms, seconds 0...255 BACnet maximum MAC address when polling for master 0...127 BDiag BACnet diagnostic display while accessing this option.
- Page 23 Belimo Gas Monitors Programmable settings for the gas monitor. (Not specific for each sensor module) *0 = inactive NAME DESCRIPTION RANGE DEFAULT AMinB Analog drive. Minimum percent of scale for zero output. 0...255 Sensor B (bottom sensor) AMaxB Analog drive. Maximum percent of scale for full scale 0...100...
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Page 24: Sequence Of Operations
Belimo Gas Monitors 4.6 Sequence of Operation Gas monitors and communication modules are preloaded with default programmable settings for normal operation and can be changed by the user at any time via the key pad. 2. On power-up the display will show the firmware version number and the warm up timer will count down (setting 52, default 1 minute). Relays are inactive during this time. - Page 25 Belimo Gas Monitors If the temperature exceeds the high temperature alarm limit (programmable setting 51), relay 1 will activate, the alarm 1 red LED will turn on and the alarm 1 transmit message will be sent via the CAN bus network to other gas monitors and communication modules.
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Page 26: Network Configuration (Can Bus)
Belimo Gas Monitors 5.0 Network configuration (CAN bus) 5.1 Using CAN bus with a communication Zone 1 module A communication module serves as the central control point for 22Gxx-5C 22Gxx-5C 22Gxx-5C 22Gxx-5C the ventilation system. Model 22Gxx-5y gas monitors transmit... -
Page 27: Default Configurations
Belimo Gas Monitors 5.3 Default Configuration Gas monitors and communication modules are shipped pre-loaded with default settings which can be changed in the field to suit the desired sequence with simple keypad input. When a gas monitor or communication module goes into alarm level 1, 2 or 3 it activates its relays and transmits a message to other devices to activate their alarm levels and relays also. -
Page 28: Maintenance
± 2% accuracy (or better) should be used for both the zero and the span point. In conjunction with certified gas bottles, it is recommended to use the Belimo calibration kit (A-22G-A22) that includes a regulator (0.5 LPM), tube, and cap to adjust the sensitivity of the sensor module due to normal aging. For calibrating the span point, please use a certified gas bottle that is... - Page 29 To calibrate gas monitors it is important to keep the front cover on, and make sure it is securely screwed to the base. When not using the Belimo calibration cap, it is important that the calibration cap you are using has a small outlet hole, otherwise the pressure will increase and distort the reading.
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Page 30: Calibration Procedure: Infrared Broadband Sensor Modules
Press → and ← to get to SAS (sensor A span) or SBS (sensor B span). 7. While at SAS (sensor A span) or SBS (sensor B span) flood the certified span gas over the sensor module. To do this, connect the span gas bottle to the Belimo regulator, and insert the calibration cap onto the sensor hole located on the gas monitor front cover. Flood the sensor with the span gas at a flow rate of 0.5 LPM for 90 seconds... -
Page 31: Sensor Module Replacement
Press ↑ and → at the same time to enter the calibration mode. 10. While at SAZ (sensor A) flood the certified zero gas over the sensor module. To do this, connect the zero gas bottle to the Belimo regulator, and insert the calibration cap onto the rectangular sensor hole located on the gas monitor front cover. Flood the sensor with the zero gas at a flow rate of 0.5 LPM for 90 seconds or until the reading... -
Page 32: Sensor Module Expected Life Span And End Of Life
Belimo Gas Monitors 6.7 Sensor Module Expected Life Span and End of Life All sensor modules have an expected life span and an end of life. The expected life span is how long the sensor module will last (under normal conditions) until it should be replaced with a new one. -
Page 33: Fault Monitoring
Belimo Gas Monitors 6.8 Fault Monitoring FAULT CODE MESSAGE Error cleared (no error) No sensor Low voltage High voltage Sensor A missing or not registered Sensor B missing or not registered Both sensors missing or not registered Sensor A end of life (need to replace sensor) -
Page 34: Network Configuration (Bacnet Ms/Tp)
Belimo Gas Monitors 7.0 Network configuration (BACnet MS/TP) For instructions on changing settings, see section 4.3 Setting 46 BACnet Mode select 0, 1, 2 0 = communication disabled 1 = communication enabled 2 = communication enabled and display all monitors on CAN network... - Page 35 Belimo Gas Monitors Object Table TYPE AND OBJECT NAME OBJECT PROPERTY PARAMETER INSTANCE gas reading 1 Present value (R) Gas reading local sensor A gas reading 2 Present value (R) Gas reading local sensor B Ambient temperature Present value (R)
- Page 36 Belimo Gas Monitors Exceptional service At Belimo, we continually invest in new technologies that increase Global support customer value by improving occupant comfort, energy efficiency, simplified installation, and maintenance-free operation. Our sales team is available to consult and provide insight and advice on how to Tested quality achieve the best solution to help increase your system performance.
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