CO2 Sensor Wireless User Manual Document in original language 2017-03-20 -en_GB A004 Contents 1 Declaration of Conformity ............................... 2 Product description ...................................... 2.1 CO2 measurement................................ 3 Guidelines for installation ............................... 4 Interface description ..................................... 4.1 Connections ....................................... 4.2 Power-up mode ................................... 4.3 Active/User/Fault mode .......................... 4.4 Binding mode ..................................... 5 Troubleshooting .......................................... 1 2 3 3 4 5 5 6 7 8 1 Declaration of Conformity Manufacturer Systemair AB Industrivägen 3 SE-739 30 Skinnskatteberg SWEDEN Office: +46 222 440 00 Fax: +46 222 440 99 www.systemair.com hereby confirms that SmartDial, CO2 sensor, Humidity sensor, Input module and RS485 Gateway comply with all applicable requirements in the Directive 2014/53/EU. The units will meet the requirements of the WEEE and ROHS directives. CO2 Sensor User Manual 1 Systemair AB The complete technical documentation is available. Skinnskatteberg, 20-03-2017 Mats Sándor Technical Director 2 Product description The CO2 sensor is a wireless sensor that measures the carbon dioxide (CO2) level in the air. The CO2 level is measured in Parts Per Million, PPM. If the sensor detects CO2 above a preset level, the air handling unit will start forced ventilation. The CO2 sensor is intended for wall mounting either on the wall or on a wall-box, however it should be placed where you want instantaneous for CO2. CO2 Sensor User Manual 2 Systemair AB 2.1 CO2 measurement Optimal measurement range is 400-2000 PPM. Measurement accuracy is ± 40 PPM +2% of measurement range at 20 °C. Measurement will be stable for 2 minutes after the unit is powered up. Measurement accuracy will be at its maximum 10 minutes after the unit is powered up. Note: The function of the CO2 sensor is configured in the Systemair air handling unit controller. See the Manual for the specific air handling unit. 3 Guidelines for installation See the RS485 Gateway User Manual for more information. CO2 Sensor User Manual 3 Systemair AB 4 Interface description The Man Machine Interface (MMI) for this product has one capacitive button and one combined (red and green) LED indicator that indicates the status of the device. 1. Green and Red combined LED 2. Capacitive button CO2 Sensor User Manual 4 Systemair AB 4.1 Connections The CO2 sensor requires 230 V AC 50 Hz, 4 VA power supply. Cable area: 0.25 — 2.5 mm2 L — 230 V AC N — 230 V AC 4.2 Power-up mode After the device has been turned on, the green LED lights up. After 2 seconds, the device will go to idle mode. In the idle mode the status LED’s are turned off. When the button is pushed the Active/User/Fault mode is entered. CO2 Sensor User Manual 5 Systemair AB 4.3 Active/User/Fault mode In the Active/User/Fault mode the LED’s can show following status: • Green LED continuously lit. System OK. • Flashing red (fault). This status is repeated every few seconds. • When the button is pushed and held for less than 1 second, a Party Active message is sent to the gateway. Note: It is not possible to deactivate the Party Active mode from this module. It must be deactivated on the air handling unit control panel or the wireless control panel if one is used. Note: There is no (visible) feedback when the button is touched. • When the button is pressed and held for 10 seconds, the green LED starts flashing for 3 seconds. • If the button is released within these 3 seconds, the binding mode is entered. • If the button is not released within these 3 seconds, the LED goes off and the gateway will go to idle mode. CO2 Sensor User Manual 6 Systemair AB • If the button is not pressed for at least 10 seconds, the module will go to idle mode. 4.4 Binding mode In the Binding mode, the module contacts the gateway and requests connection. Binding is only possible within 2 minutes after power-up. Note: Binding mode must first be activated on the gateway. See RS485 Gateway User Manual for more information. In the Binding mode the red and green LED’s are alternately lit for 2 seconds. • When the binding procedure is done or a timeout has occurred, the result of the binding is indicated for 2 seconds • Next, the Active/User/Fault mode is entered. Green LED lit — bind successful Red LED lit — bind failed CO2 Sensor User Manual 7 Systemair AB When the button is pressed again, the Active/User/Fault mode is entered. 5 Troubleshooting Indication Probable cause and action CO2 Sensor is not working Check AC power RF binding and/or communication problems Check if remote modules too close (< 1 m) or too far away (> 30 m) from the gateway CO2 Sensor User Manual 8 Systemair AB CO2 Sensor User Manual 9 Systemair AB lastpage Systemair AB reserves the right to make changes and improvements to the contents of this manual without prior notice. Systemair AB Industrivägen 3 SE-739 30 Skinnskatteberg, Sweden Phone +46 222 440 00 Fax +46 222 440 99 www.systemair.com
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