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General information General information Safety notes Symbols are used in this manual to alert readers to Information about installation and commissioning areas of potential hazard. Signal words express the instructions degree of the hazard. This installation and commissioning manual enables Comply with all safety instructions and proceed carefully operating or service personnel to use the variable air to avoid accidents, injuries and damage to property.
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General information Safety notes as part of instructions Safety notes may refer to individual instructions. In this case, safety notes will be included in the instruc- tions and hence facilitate following the instructions. The above listed signal words will be used. Example: Loosen the screw.
Table of contents Safety ..............6 6.5.2 C values ..........1.1 Correct use ..........6 Maintenance ........... 21 1.2 Safety signs ..........6 7.1 System owner's responsibility ....1.3 Dangers when handling the unit ....6 7.2 Maintenance ..........21 1.3.1 Electric shock hazards ......
Safety Dangers when handling the unit Safety 1.2 Safety signs The following symbols and signs are usually found in 1.1 Correct use the work area. They apply to the very location where The VAV terminal unit from the TVLK type is used for they are found.
Safety System owner's responsibility 1.3.1 Electric shock hazards In particular: The system owner must be aware of the applicable Electric current occupational health and safety regulations and carry out a risk assessment to determine any additional DANGER! hazards that may exist or result from the specific working conditions at the installation location.
Safety General safety measures 1.5 Qualified staff Protective gloves WARNING! Danger of injury due to insufficiently qualified individuals! Incorrect use may cause considerable injury or Protective gloves protect hands from friction, abrasions, damage to property. punctures, deep cuts, and direct contact with hot sur- faces.
Transport, storage and packaging Packaging Transport, storage and packaging Safety notes on handling the unit CAUTION! Danger of injury from sharp edges and sheet metal parts. – Always wear protective gloves when handling the unit. NOTICE! Risk of damage to the unit! –...
Product description Labelling on unit > CE marking / declaration of incorporation 3.4.2 Adjustment sticker In accordance with the Machinery Directive, partly com- pleted machinery obtains a Declaration of Incorporation. The adjustment sticker documents the factory setting This Declaration of Incorporation confirms that the basic and the test steps stored for these variants.
Installation General installation information > Installation of sound attenuators, fire damper... Installation 4.1 Safety 4.2.1 Installation of sound attenuators, fire dampers and heat exchangers Personnel: If additional components are arranged upstream of a HVAC technician regulating device in the airflow direction, the clearances Protective equipment: specified in the table must be observed.
Installation General installation information > Airflow direction 4.2.2 Installation orientation For terminal units with diaphragm pressure transducers, the installation orientation of the control component (TROX Universal or EASYLAB controller) must be taken into account. The actual installation orientation must be compared with the variants on the sticker.
Installation General installation information > Upstream conditions 4.2.4 Upstream conditions The volume flow rate accuracy of the unit applies to a straight upstream section of the duct. Bends, junctions or a narrowing or widening of the duct cause turbulence that may affect measurement. The upstream conditions explained below must be adhered to in order to achieve the specified volume flow rate accuracy.
Installation Connecting the air duct 4.3 Fixing/suspension General installation information When designing and constructing ventilation and air conditioning systems, take into account the require- ments of VDI 6022, in particular: – Hygienic, clean installation of all components and their air distribution surfaces. –...
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Installation Connecting the air duct Dimensions and number of holes in accordance with EN 12220. Position the ducting exactly. Do not pull the dis- tances together via the flange connection. Fig. 12: Plastic spigot Installation on ducting in accordance with DIN 8077 ...
Electrical connection Installation instructions Electrical connection Observe wiring guidelines and project-specific circuit diagrams. 5.1 Safety notes The electrical connection may only be made after complete installation of the unit. For units with a 24 V supply voltage, observe the ...
Commissioning and operation Commissioning > Functional test Commissioning and opera- 6.3.2 Parameterisation by others and set- tings tion Subsequent adjustment of settings 6.1 Factory preparation Subsequent adjustments to the volume flow rate oper- TROX VAV terminal units are prepared, calibrated and ating range may require manufacturer-specific adjust- tested at the factory.
Commissioning and operation Volume flow rate measurement > C values Supply voltage or the compressed air supply is Attention: During the measurement, the actuator of the switched on. control component must be switched off, e.g. via a spe- cial function of a service tool or by switching off the Measuring hoses between differential pressure ...
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Commissioning and operation Volume flow rate measurement > C values TVLKwith bluff ØD [mm] C value body TVLK 250-100 25.00 TVLK 250-110 24.31 TVLK 250-140 21.53 TVLK 250-160 13.33 TVLK 250-180 15.14 C value in relation to l/s, (for air density 1.2 kg/m³ at 20 °C) 2) TVLK: with four parallel measuring hoses made up until approx.
Maintenance Maintenance service Maintenance Note: When reinstalling, push the sensor tubes back in completely and make sure that the meas- 7.1 System owner's responsibility uring hoses are not kinked. Check all screws for firm seating and retighten them, if necessary. WARNING! Check electrical feeder cables for damage and Only authorised specialist personnel are allowed...
Faults Troubleshooting Faults 8.1 Troubleshooting To troubleshoot the problem, check and log the following points. Take appropriate action if necessary. In case of inquiries to TROX Service, please send the fault log. System/area: TROX VAV terminal unit type (see adjustment sticker): Control component (see adjustment sticker): Operating mode (see adjustment sticker):...
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Faults Troubleshooting Description applicable Check control operation Setpoint control within the control range of the VAV terminal unit and its control component. If the setpoint value is not reached from the control mode, check whether an override control (Closed, q , qv , Open) suppresses the normal control vmin...
Decommissioning Disposal Decommissioning 9.2 Disassembly Before you start disassembly: If the unit is no longer used, it has to be removed and disposed of in an environmentally friendly manner. Switch off the unit and secure it against being switched on accidentally. Physically disconnect the unit from the power supply ...
Technical data Control component/attachments Technical data 10.1 General data Nominal sizes 250 mm Volume flow rate range 30 – 546 l/s or 108 – 1967 m³/h (The volume flow rate range depends on the ordered size of the bluff body or Venturi nozzle.) Volume flow rate control range (controller with Approx.
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