GB.TBLZ74.160408 dh = D ØD Installation Instructions for the TBLZ-1-74-a Air quality sensor, duct mounting, GOLD/COMPACT dh = 2xHxB H+B H B 1. General The carbon dioxide content of the indoor air is an effective indicator of the occupancy load and the amount of ventilation required in the room. Ventilation control based on CO2 measurements can ensure the ample supply of fresh air, while the energy cost will be as low as possible. Examples of sources of disturbance MIN 5xd h MIN 3xd h MIN 3xd h GX GX MIN 5xd h GX GX 1.2 Operation The air quality sensor has an output signal of 0 – 10 V which corresponds to an operating range of 500 – 1500 ppm. The output signal is linear in relation to the CO2content. FAN MIN 3xd h 2. Installation MIN 5xd h MIN 3xd h GX GX Demand control MIN 5xd h GX GX COIL MIN 3xd h GX GX SILENCER MIN 3xd h Set the air handling unit to DEMAND CONTROL under the FAN REGULATION function menu (GOLD LP/COMPACT) or to Demand under Functions/Airflow/Regulation mode (GOLD RX/ PX/CX/SD, Version E/F). Set the set point required as a percentage of the sensor’s operating range. If a set point of 1000 ppm is required, for instance, set the set point to 50%. Enter the setting under the Flow/ Pressure menu group (GOLD LP/COMPACT) or under Functions/ Airflow/Operation level (GOLD RX/PX/CX/SD, Version E/F). See the Operating and Maintenance Instructions. DAMPER MIN 5xd h GX BEND GX MIN 5xd h GX MIN 3xd h BRANCH ReCO2 Set the GOLD unit to *CO2* under the ReCO2 function menu (GOLD LP/COMPACT) or under Functions/ReCO2 (GOLD RX/PX/ CX/SD Version E/F). Set the set point required as a percentage of the sensor's operating range. If a set point of 1000 ppm is required, for instance, set the set point to 50%. Enter the setting under the Flow/ Pressure menu group (GOLD LP/COMPACT) or under Functions/ ReCO2/CO2 (GOLD RX/PX/CX/SD Version E/F). See the Operating and Maintenance Instructions. MIN 3xd h GX MIN 3xd h MIN 5xd h GX GX GX MIN 5xd h ADAPTER EXTRACT AIR SUPPLY AIR AIR HANDLING UNIT 2.2 Installation Position the air quality sensor in the direction of flow, according to the airflow direction arrow. The sensor can be mounted horizontally or vertically in a vertical or horizontal airflow. If there are large temperature differences, e.g. outside or in cold attics, the sensor must be insulated from the surrounding air (due to the risk of condensation build-up in the sensor housing). To ensure optimum operation the air quality sensor should be positioned so that the distance to the nearest interfering source in the duct (see example of interfering sources), in the direction of airflow, is at least the same as 3 x the duct’s hydraulic diameter. Nearest location after an interfering source should be at least 5 x the duct’s hydraulic diameter. Hydraulic diameter CIRCULAR DUCT dh = D ØD RECTANGULAR DUCT dh = 2xHxB H+B H B We reserve the right to alter specifications. MIN 3xd h GX MIN 5xd h GX MIN 3xd h GX www.swegon.se MIN 5xd h GX 1 GB.TBLZ74.160408 Item 4 • Mount the tube and sensor onto the duct. • Secure the sensor housing at 3 points indicated by the arrows. Item 1 • Drill holes in the duct. See Items 8 and 9. N.B.! IMPORTANT! The airflow direction arrows on the air quality sensor (see the shape of the detector’s base or the top of the housing) must point in the same direction as the air flow in the duct. Item 2 • Measure the ventilation duct. • Cut the tube, if required, see Item 8. Insert the end plug. Do not cut this end! End plug Item 3 • Insert the seal onto the tube. • Insert the tube into the bottom of the sensor housing. • Lock the tube using the stop screw. Stop screw 5 Item 5 The air quality sensor is equipped with an airflow indicator, a red plastic tab, which, when the sensor is correctly installed, swings out due to the air flow. N.B.! If the indicator does not move at all, consider relocating the sensor at a new position. Airflow indicator 2 www.swegon.se We reserve the right to alter specifications. GB.TBLZ74.160408 Item 6 Electrical installation. Open the cover above the junction hood by lifting the snap-on fastener. Insert the cable through any cable grommet. Item 7 Performance checks • Move the test hole plug to the side and blow on the detector. N.B.! Refit the test hole plug. Snap-on fastener Grommet • Select 0 – 10 V operation by putting the jumper in the voltage position. Item 8 Installing different tubes in different duct widths. Outp. 2 Outp. 1 Jumper for a 0% or 20% output signal starting level 20% 0% 1 G+ 24V AC/DC 2 G0 System earth 3 + Out 1 CO2 (500-1500 ppm) 4 + Out 2 Temperature (0 – 50°C) For ducts up to and including 600 mm use a 600 mm venturi tube, standard. For ducts larger than 600 mm and up to and including 1,400 mm, use a 1,500 mm venturi tube. 600 mm Venturi tube. Current Voltage Current Voltage Opening ø 38 mm Jumper for selection of electric current or voltage of output signal Cut the Venturi tube, if required, to the right length. The tube should cover at least 90% of the duct’s diameter. 1,500 mm Venturi tube. Opening ø 38 mm N.B.! Opening ø 51 mm The Venturi tube must go through the entire duct. • Cut the tube to the correct length. • Insert the end plug. • Fit the terminal seal • Install rubber seal TET 26-35 as a bearing. Max. tube of 30 mm outside the duct. We reserve the right to alter specifications. www.swegon.se 3 GB.TBLZ74.160408 Item 9 Mounting fittings for circular or insulated flat ducts The duct diameter can be as small as 100 mm using the bracket. Circular duct. The bracket is supplied flat. Rubber seal. Insulated flat duct. The bracket is easy to bend/shape so that it fits circular or flat ducts. Fasten the bracket's legs to the duct. Rubber seal. Item 10 Final checks Check that the positioning arrow points towards the direction of flow. Check that the plug for the test hole is properly installed. Check that the airflow indicator shows flow (rocks). Opening Ø 51 mm. 4 www.swegon.se We reserve the right to alter specifications. GB.TBLZ74.160408 2.3 Electrical Connections. The electrical connections should be wired by a qualified electrician in accordance with local electrical safety regulations. GOLD RX/PX/CX/SD, Version E/F Demand control or RECO2 Air quality sensor GOLD RX/PX/CX/SD IQlogic control unit Jumper for a 0% or 20% output signal starting level Jumper for selection of electric current or voltage of output signal Outp. 2 Outp. 1 20% 0% 1 G+ 1 2 G0 2 3 + Out 1 3 4 + Out 2 1 31 G+ 2 32 G0 3 18 19 Current Voltage Current Voltage The following applies to the size 100/120 GOLD units only: If the total load on Terminals 31-32 is higher than 16 VA, then Terminals 201 (G) and 202 (G0) must be used. Terminals 201-202 can be loaded with a total of max. 48 VA. GOLD LP/COMPACT Demand control Air quality sensor GOLD LP/COMPACT IQnomic control unit Jumper for a 0% or 20% output signal starting level Jumper for selection of electric current or voltage of output signal Outp. 2 Outp. 1 20% 0% Current Voltage Current Voltage We reserve the right to alter specifications. 1 G+ 1 2 G0 2 3 + Out 1 3 4 + Out 2 1 9 G+ 2 10 G0 35 3 37* *Demand control should be selected for the one fan and slave control should be selected to the other fan if so desired. www.swegon.se 5 GB.TBLZ74.160408 3. Technical Data Power supply Frequency Power consumption Input signal Range of measurement Accuracy Warm-up period Reply promtness Enclosure Class Operating temperature Storage temperature 24 V AC ± 20% 50/60 Hz <3W 0 – 10 V DC. 500 – 1500 ppm ± 1% of the range of measurement ± 5% of measured value < 1 min. 2 min. IP 54 0 to +50 °C -20° to +70°C 4. Dimensions Length of Venturi tube: 600 alt. 1500 mm. 150 85 180 146 154 35 27 (All dimensions are given in mm) 6 www.swegon.se We reserve the right to alter specifications.
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