TVE-Q Rectangular VAV Terminal Units
Product Information
Specifications
Product Name: VAV terminal unit TVE-Q
Manufacturer: TROX SE
Model: TVE-Q VARYCONTROL
Country of Origin: Germany
Contact: Phone: +49 2845 202-0, Email:
trox-de@troxgroup.com, Website: www.troxtechnik.com
Manual Version: CD10018, 5, GB/en 04/2025
Product Usage Instructions
1. General Information
Before proceeding with any tasks, carefully read through the
user manual.
2. Safety
- Correct Use: Ensure the unit is used correctly
as per the manual. - Safety Signs: Pay attention to safety signs
for proper handling. - Dangers: Be aware of potential dangers when
handling the unit.
3. Transport, Storage, and Packaging
- Delivery Check: Perform a check upon delivery
to ensure no damage. - Transport: Handle transportation on-site with
care. - Storage: Store the unit appropriately to
prevent damage. - Packaging: Dispose of packaging materials
responsibly.
4. Product Description
The VAV terminal unit TVE-Q is designed to provide variable air
volume control for efficient ventilation systems. It offers a
comprehensive set of features for optimal performance.
Frequently Asked Questions (FAQ)
Q: How do I commission the VAV terminal unit TVE-Q?
A: To commission the unit, follow the steps outlined in section
7 of the user manual. Ensure all installation and connection
requirements are met before proceeding with parameterization and
functional testing.
Q: What should I do in case of faults?
A: Refer to section 9 for troubleshooting guidelines in case of
faults. If issues persist, contact the manufacturer’s support for
further assistance.
Installation and operating manual
GB/en
VAV terminal unit
TVE-Q
VARYCONTROL
Read the instructions prior to performing any task!
TROX SE Heinrich-Trox-Platz 47506 Neukirchen-Vluyn Germany Phone: +49 2845 202-0 Fax: +49 2845 202-265 Email: trox-de@troxgroup.com Internet: http://www.troxtechnik.com
CD10018, 5, GB/en 04/2025
© TROX GmbH 2023 2
VAV terminal unit TVE-Q
Table of contents
1 General information …………………………………. 4
7.2 Requirement for commissioning ………….. 19
1.1 About this manual ……………………………….. 4
7.3 Commissioning …………………………………. 19
1.2 Explanation of symbols ……………………….. 4
7.3.1 Installation and connection ………………. 19
1.3 TROX Contact information …………………… 5
7.3.2 Parameterisation by others and settings
1.4 Legal information ………………………………… 5
……………………………………………………… 19
2 Safety ………………………………………………………. 6 2.1 Correct use ………………………………………… 6 2.2 Safety signs ……………………………………….. 6 2.3 Dangers when handling the unit ……………. 6
7.3.3 Functional test ……………………………….. 19 7.4 Operation …………………………………………. 20 7.5 Volume flow rate measurement …………… 20 7.5.1 C values ……………………………………….. 20
2.3.1 Electric shock hazards ……………………… 7 8 Maintenance …………………………………………… 21
2.4 System owner’s responsibility ………………. 7
8.1 System owner’s responsibility …………….. 21
2.5 Staff qualifications ………………………………. 8
8.2 Maintenance …………………………………….. 21
2.6 Personal protective equipment ……………… 8
8.3 Inspection measures …………………………. 21
2.7 Repair and replacement parts ………………. 8
8.4 Repair ……………………………………………… 21
2.8 General safety measures …………………….. 8
8.5 Maintenance service …………………………. 21
3 Transport, storage and packaging …………….. 9 9 Faults …………………………………………………….. 22
3.1 Delivery check ……………………………………. 9
9.1 Troubleshooting ………………………………… 22
3.2 Transport on site …………………………………. 9 10 Decommissioning …………………………………… 24
3.3 Storage ……………………………………………… 9
10.1 Safety ……………………………………………. 24
3.4 Packaging ………………………………………….. 9
10.2 Disassembly …………………………………… 24
4 Product description ………………………………… 10
10.3 Disposal …………………………………………. 24
4.1 Product overview ………………………………. 10 11 Technical data ………………………………………… 25
4.2 Functional description ……………………….. 10
11.1 General data …………………………………… 25
4.3 Position of the damper blade ………………. 10
11.2 Control component/attachments ………… 25
4.4 Labelling on unit ……………………………….. 10 12 Index………………………………………………………. 26 4.4.1 Rating plate …………………………………… 10
4.4.2 Scale sticker (Easy control component only) ……………………………………………… 10
4.4.3 Adjustment sticker ………………………….. 11
4.4.4 CE marking / declaration of incorporation ……………………………………………….. 11
5 Installation ……………………………………………… 12
5.1 Safety ……………………………………………… 12 5.2 General installation information …………… 12 5.2.1 Installation of sound attenuators, fire
dampers and heat exchangers …………. 12 5.2.2 Installation orientation …………………….. 12 5.2.3 Control units with acoustic cladding ….. 12 5.2.4 Airflow direction ……………………………… 13 5.2.5 Upstream conditions ……………………….. 13 5.3 Fixing/suspension ……………………………… 15 5.4 Installation of secondary silencer TX ……. 16 5.5 Connecting the duct ………………………….. 16 5.6 Control unit with acoustic cladding ………. 17
6 Electrical connection ……………………………… 18 6.1 Safety notes …………………………………….. 18 6.2 Installation instructions ………………………. 18
7 Commissioning and operation ………………… 19 7.1 Factory preparation …………………………… 19
VAV terminal unit TVE-Q
3
General information
Explanation of symbols
1 General information
1.1 About this manual
Information about installation and commissioning instructions This installation and commissioning manual enables operating or service personnel to use the variable air terminal unit (hereinafter also referred to as VAV terminal unit or unit) safely and efficiently.
This manual must be kept near the unit to be available for use at all times. The personnel performing work on the device must read and understand this manual carefully before starting any work. The basic prerequisite for safe working is to comply with all safety notes and instructions in this manual. In addition, the local health and safety regulations and general safety regulations apply to the area of application of the device. Illustrations in this manual are mainly for information and may differ from the actual design.
1.2 Explanation of symbols
Safety notes Symbols are used in this manual to alert readers to areas of potential hazard. Signal words express the degree of the hazard. Comply with all safety instructions and proceed carefully to avoid accidents, injuries and damage to property.
DANGER! Imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING! Potentially hazardous situation which, if not avoided, may result in death or serious injury.
CAUTION! Potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
Other applicable documentation
In addition to these instructions, the following documents must be observed:
Product data sheets Instructions for the electrical control components
(assemblies) Instructions for the electric actuators Project-specific wiring documents, if any
NOTICE! Potentially hazardous situation which, if not avoided, may result in property damage.
ENVIRONMENT! Environmental pollution hazard.
Tips and recommendations
Useful tips and recommendations as well as information for efficient and fault-free operation.
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VAV terminal unit TVE-Q
General information
Legal information
Safety notes in the operating instructions Safety notes can refer to specific, individual instructions. Such safety instructions are embedded in the instructions so that they do not interrupt the flow of reading when carrying out the task. The above listed signal words will be used. Example: 1. Loosen the screw. 2.
CAUTION! Risk of jamming on the lid!
Close the lid carefully. 3. Tighten the screw.
Further symbols/markings The following markings are used to highlight instructions, results, lists, references and other elements in this manual:
1.4 Legal information
Claims for material defects Claims for material defects are subject to the seller’s terms of delivery.
Copyright This documentation including all illustrations is protected by copyright and pertains only to the corresponding product. Any use without our consent may be an infringement of copyright, and the violator shall be liable for damages. This applies in particular to: Publishing content Copying content Translating content Microfilming Saving and processing in electronic systems
Marking 1., 2., 3. … ð
[Push button] `Display’
Explanation Step-by-step instructions
Results of actions References to sections in this manual and to other applicable documents Lists without a defined sequence Control elements (e.g. push buttons, switches) or display elements (e.g. LEDs) Screen elements (e.g. buttons, assignment of function keys)
1.3 TROX Contact information
To ensure that your request is processed as quickly as possible, please have the following information available:
Product name TROX order number and line number Delivery date Issue or fault report Ä Chapter 9.1 `Trouble-
shooting’ on page 22
Please refer to your local TROX website for the latest contact information.
VAV terminal unit TVE-Q
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Safety
Dangers when handling the unit
2 Safety
2.1 Correct use
The VAV terminal unit from the TVE-Q type is used for variable volume flow rate control, throttling or shut-off in ventilation systems within closed rooms. If the air is contaminated with dust, fluff, moisture or sticky particles, only VAV terminal units that use a control component with a static differential pressure transducer may be used. The VAV terminal unit type TVE-Q must not be used in ventilation systems with chemical contamination (e.g. extract air from fume cupboards or point extraction systems). The VAV terminal unit may only be used in kitchen extract air systems if it is ensured that the extract air is cleaned by highly effective aerosol separators (>90 %); observe VDI 2052. In addition, shortened inspection and cleaning intervals must be included in the maintenance plan.
2.2 Safety signs
The following symbols and signs are usually found in the work area. They apply to the very location where they are found.
WARNING! Danger due to illegible signage! Over time, stickers and signs may fade or become otherwise illegible, meaning that hazards cannot be identified and necessary operating instructions cannot be followed. There is then a risk of injury. Ensure that all of the safety, warning and oper-
ating information is clearly legible. Replace illegible signs or stickers immediately.
Electrical voltage
Incorrect use
WARNING!
Danger of injury or risk of damage to property due to unauthorised use! Incorrect use of the VAV terminal unit can lead to dangerous situations.
Do not use the VAV terminal unit:
in areas with potentially explosive atmospheres (EX)
in aircraft outdoors without sufficient protection against the
effects of weather in wet areas for areas of application that are not described in
the product brochure
Modifying the unit or using replacement parts that have not been approved by TROX is not permitted.
Only skilled qualified electricians are allowed to work in areas marked as having electrical voltage. Unauthorised people must not enter areas, open cabinets or work on components where an electrical voltage is present and which are hence marked with this symbol.
2.3 Dangers when handling the unit
The unit is a state-of-the-art product and meets current safety requirements. Residual risks cannot be excluded, however, and you should proceed with caution. This section describes the residual risks that have been identified in a risk assessment. Always follow the safety notes in this manual to reduce health hazards and prevent any hazardous situations.
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VAV terminal unit TVE-Q
Safety
System owner’s responsibility
2.3.1 Electric shock hazards
Electric current
DANGER! Danger of death due to electric current! Contact with live parts poses an immediate danger to life due to electric shock. Damaged insulation or damaged parts are a life threatening hazard. Work on the electrical system must only be car-
ried out by skilled qualified electricians. If the insulation is damaged, disconnect the
power supply immediately and have the insulation repaired. Before you start working on electric systems and equipment, switch off the supply voltage and secure it against being switched on accidentally. Comply with the following safety rules: Switch off the supply voltage. Secure it against being switched on acciden-
tally. Ensure that no voltage is present. Connect to the earth; short circuit connection. Do not bypass or disable any circuit breakers. Be sure to maintain the correct current rating when you replace a circuit breaker. Ensure that live parts do not come into contact with moisture. Moisture can cause a short circuit.
2.4 System owner’s responsibility
System owner The system owner is a natural or legal person who for commercial or business purposes owns or manages the ventilation system or component or allows third parties to use or operate it, but continues to bear legal responsibility for the safety of users, staff or third parties while the product is in use.
In particular: The system owner must be aware of the applicable
occupational health and safety regulations and carry out a risk assessment to determine any additional hazards that may exist or result from the specific working conditions at the installation location. The system owner has to create operating instructions for the unit that reflect the results of this risk assessment. The system owner has to ensure, throughout the entire operating period of the unit, that these operating instructions conform to applicable standards and guidelines; in case of any deviation, the system owner has to adapt the instructions. The system owner must secure the unit to prevent access by unauthorised individuals. The system owner must clearly define the responsibilities for operation, maintenance, cleaning, troubleshooting and removal. The system owner has to ensure that all individuals who handle or use the unit have read and understood this manual. The system owner must provide the employees with the required personal protective equipment. The system owner must comply with the local fire regulations.
Hygiene requirements The system owner has to comply with the local regulations and harmonised standards for hygiene requirements. These include, among other things, compliance with the corresponding maintenance and test intervals.
System owner’s obligations The unit is intended for commercial use. The system owner is therefore subject to the legal obligations of occupational health and safety regulations. In addition to the safety notes in this manual, the applicable regulations for safety, accident prevention and environmental protection must also be complied with.
VAV terminal unit TVE-Q
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Safety
General safety measures
2.5 Staff qualifications
Protective gloves
WARNING! Danger of injury if insufficiently qualified! Incorrect use may cause considerable injury or damage to property. Only specialist personnel must carry out work.
The following degrees of qualification are required for the work described in the operating manual. HVAC technician HVAC technicians are individuals who have sufficient professional or technical training in the field they are working in to enable them to carry out their assigned duties at the level of responsibility allocated to them and in compliance with the relevant guidelines, safety regulations and instructions. HVAC technicians are individuals who have in-depth knowledge and skills related to HVAC systems; they are also responsible for the professional completion of the work under consideration. HVAC technicians are individuals who have sufficient professional or technical training, knowledge and actual experience to enable them to work on HVAC systems, understand any potential hazards related to the work under consideration, and recognise and avoid any risks involved.
Qualified electrician Skilled qualified electricians are individuals who have sufficient professional or technical training, knowledge and actual experience to enable them to work on electrical systems, understand any potential hazards related to the work under consideration, and recognise and avoid any risks involved.
2.6 Personal protective equipment
Personal protective equipment is equipment that protects the user against health or safety risks at work. Personal protective equipment must be worn for various types of work; the protective equipment required is listed in this manual together with the description of each type of work.
Protective gloves protect hands from friction, abrasions, punctures, deep cuts, and direct contact with hot surfaces. Safety shoes
Safety shoes protect the feet from crushing, falling parts and prevent slipping on a slippery floor.
2.7 Repair and replacement parts
The devices must be repaired by qualified personnel using genuine replacement parts only. This particularly applies to work on the electrical equipment. For safety reasons, defective devices should therefore be repaired by the TROX Technical Service, Ä 1.3 `TROX Contact information’ on page 5 .
2.8 General safety measures
Large temperature differences Be careful when there is a large temperature difference. If the unit has been kept in an unheated area, wait two hours before switching on the supply voltage. Condensation may damage the electronic components beyond repair. Only after about 2 hours will the system have reached room temperature.
Foreign matter and liquids Be careful when objects or liquids have got into the casing, or if the unit emits a smell or smoke. Decommission the unit and have it checked by the manufacturer.
Description of personal protective equipment Industrial safety helmet
Industrial safety helmets protect the head from falling objects, suspended loads, and the effects of striking the head against stationary objects.
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VAV terminal unit TVE-Q
Transport, storage and packaging
Packaging
3 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! Handle the unit with care. Do not lift the unit by its control components or
the damper blade. Lift the unit only by lifting the entire casing.
3.1 Delivery check
Check delivered items immediately after arrival for transport damage and completeness. In the case of any damage or an incomplete shipment, contact the shipping company and your supplier immediately.
3.2 Transport on site
If possible, take the product in its transport packaging up to the installation location.
Do not remove the protective wrapping until just before installation.
3.3 Storage
If the product has to be stored temporarily: Moisture and lack of ventilation can lead to oxida-
tion, even on galvanised components. Remove any plastic wrapping in order to avoid oxidation. Protect the product from dust and contamination. Store the product in a dry place and away from direct sunlight. Do not store the product below -10 °C or above +50 °C.
3.4 Packaging
Properly dispose of packaging material.
VAV terminal unit TVE-Q
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Product description
Labelling on unit > Scale sticker (Easy control component only)
4 Product description
4.1 Product overview
4.4 Labelling on unit 4.4.1 Rating plate
Fig. 1: TVE-Q product overview 1 Flange for air duct profiles 2 Casing 3 Damper blade including differential pressure sensor 4 Shaft with effective pressure channel 5 Electronic control component 6 Preferred airflow direction
4.2 Functional description
The damper blade of the TVE-Q works as a control element and as a differential pressure sensor. Through the differential pressure duct in the shaft, the detected differential pressure reaches the transducer (static or dynamic), and is converted into an electrical signal and compared with the setpoint value. In case of a control deviation, the integrated actuator changes the position of the damper blade. Thereby, the volume flow rate is kept constant in close tolerances over the entire differential pressure range.
4.3 Position of the damper blade
The position of the damper blade corresponds to the mark on the unlocking button and is therefore recognisable from the outside.
Fig. 3: Type plate (example) 1 Note on observing the operating instructions 2 Order data commission number item number; if
necessary, serial number if there are several pieces in the item 3 Order code 4 Order code detail of the control component 5 Information on devices that deviate from the standard 6 QR code containing the customer text (11) below in machine-readable form 7 Barcode with the serial number (for manufacturing processes at TROX) 8 Manufacturer’s address 9 Product and type 10 Airflow direction arrow (alternative airflow direction) Ä Chapter 5.2 `General installation information’ on page 12 11 Customer text for installation/use (tagging text from the order) 12 Airflow direction arrow (preferred airflow direction) 13 QR code with link in myTrox to individual product documentation matching the serial number 14 Serial number of the complete product, including the installed attachment
4.4.2 Scale sticker (Easy control component only)
With the control component `Easy’ , a scale sticker is also affixed to the VAV terminal unit. Using the scale sticker, the desired volume flow rate control range can be set as a percentage value on the potentiometer of the control component.
Fig. 2: Position indicator of the damper blade 1 Damper blade 2 Unlocking button with marking for position indication
Fig. 4: Scale sticker TVE-Q Easy (example) 1 Airflow direction arrow (preferred airflow direction) 2 Air direction arrow (alternative airflow direction)
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VAV terminal unit TVE-Q
Product description
Labelling on unit > CE marking / declaration of incorporation
4.4.3 Adjustment sticker
The adjustment sticker documents the factory setting and the test steps stored for these variants. Type and variant information only includes the order code details required for this process.
In accordance with the Machinery Directive, partly completed machinery obtains a Declaration of Incorporation. This Declaration of Incorporation confirms that the basic safety aspects of the Machinery Directive and any other directives are observed. The Declaration of Incorporation can be accessed via the QR code on the rating plate. You can download the document on the Internet at www.troxtechnik.com .
Fig. 5: Adjustment sticker example for TVE type with control components XM0 and XS0 1 Commission number. Item number 2 Type designation of VAV terminal unit 3 Nominal size 4 Control component 5 Operating mode
M ð Modbus F ð constant value V ð variable 0 or 2 ð characteristic type 6 Characteristics 0 10 V or 2 10 V 7 Volume flow rate ranges qvmin qvmax or constant value 8 Nominal volume flow rate qvnom 9 Hardware type designation 10 Control component: OF ð equipped at the factory SP ð replacement part 11 Serial number 12 Test ID number
4.4.4 CE marking / declaration of incorporation
The TVE-Q unit complies with the Machinery Directive 2006/42/EC as partly completed machinery, as it does not fulfil an independent function on its own. A CE mark and a Declaration of Conformity are therefore not permitted in accordance with the Machinery Directive.
VAV terminal unit TVE-Q
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Installation
General installation information > Control units with acoustic cladding
5 Installation
5.1 Safety
Personnel: HVAC technician Protective equipment: Protective gloves Safety shoes Industrial safety helmet
Only specialist personnel are allowed to perform the described work on the VAV terminal unit. Only skilled qualified electricians are allowed to work on the electrical system.
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! Handle the unit with care. Do not lift the unit by its control components or
the damper blade. Lift the unit only by lifting the entire casing.
5.2 General installation information
ATTENTION: Pay attention to the arrow indicating the correct airflow direction on the unit! Ä 4.4 `Labelling on unit’ on page 10
Observe EN 1505 for fittings and bridges, in particular: No sharp-edged bridges At reductions and expansions: slants max. 7.5° per leg
Select the installation location such that the VAV terminal unit, inspection accesses and the control components remain accessible for the following work: Wiring Adjustment work (service socket if necessary) Servicing and maintenance, e.g. to replace control components, if necessary in several parts (controllers, transducers, actuators). For information on space requirements, see product data sheets.
Do not swap supply and extract air units.
Do not swap over units that belong together in command and tracking controls (e.g. supply air and extract air).
Installation in kitchen extract air systems may only take place downstream of aerosol separators (>90 %); observe VDI 2052.
5.2.1 Installation of sound attenuators, fire dampers and heat exchangers
If additional components are arranged upstream of a control unit in the airflow direction, the clearances specified in the table must be observed. Shorter distances lead to measurement inaccuracies on the terminal unit. The components can be arranged directly behind the terminal unit.
Distances to other components
Component
Clearance in airflow direction in front of TVE-Q
Splitter sound attenuators MS, XS, RS, or Splitters MK, XK, RK, RSOL
7 x splitter width
Secondary silencer TX
No clearance, Non-active section in direction of TVE-Q
Fire damper
At least 4B or 4H, the greater value of the two
Heat exchanger
Behind terminal unit only
5.2.2 Installation orientation
The installation position is freely selectable, the upstream conditions for the device must be observed, Ä Chapter 5.2.5 `Upstream conditions’ on page 13 .
5.2.3 Control units with acoustic cladding
When using control units with acoustic cladding, the side section on which the control component is mounted must be accessible in its entire height and width after installation. It must be possible to remove the side sectin of the acoustic cladding to replace the control component.
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VAV terminal unit TVE-Q
Installation
General installation information > Upstream conditions
Fig. 6: Remove the side section of the acoustic cladding
CAUTION! Risk of injury from a falling side section When fitting the side section, all 6 screws must always be tightened so that the side section is secured against falling. Please note the different screw lengths ( Fig. 6 ).
5.2.4 Airflow direction
On the VAV terminal unit TVE-Q there is an arrow indicating the correct airflow direction Ä Chapter 4.4.1 `Rating plate’ on page 10
The intended airflow direction depends on the control component:
Static
– Install the terminal unit (with control component XS0, XS0-J6) in the direction of the arrow.
Dynamic – The terminal unit can be installed independent of the airflow direction (airflow in both directions).
5.2.5 Upstream conditions
The differential pressure which is decisive for the volume flow, is recorded and averaged on the damper blade. The volume flow rate accuracy q is therefore independent of the upstream length, but in the case of junctions from the main line, dependent on the installation variant of the terminal unit in the branch duct. The conditions shown below must be adhered to.
Bend
Vertical main duct
Horizontal main duct
In front of the unit, a bend with a curvature radius of ³1D has only a negligible effect on the volume flow rate accuracy q.
VAV terminal unit TVE-Q
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Installation
General installation information > Upstream conditions
Junction from a main duct A junction from main ducts causes strong turbulence. The specified volume flow rate accuracy q can be achieved for installation variants 1, 2, 3, 4 without an upstream section. In installation variants 3 and 4, the airflow direction can have an influence on q.
Installation variant 1, horizontal damper blade posi- Installation variant 2, horizontal damper blade posi-
tion
tion
Airflow direction A or B have no significant influence on q. Installation variant 3, vertical damper blade position Installation variant 4, vertical damper blade position
Airflow direction A in the main duct: The specified volume flow rate accuracy q is achieved.
Airflow direction B in the main duct: For the specified volume flow rate accuracy q, a surcharge of 10% in the upper third of the nominal volume flow rate range must be taken into account.
Airflow direction A in the main duct: For the specified volume flow rate accuracy q, a surcharge of 10% in the upper third of the nominal volume flow rate range must be taken into account. Airflow direction B in the main duct: The specified volume flow rate accuracy q is achieved.
5.2.5.1 Inflow via an open duct (extract air mode) When flow enters the open end of a duct, the following conditions must be observed with regard to the positioning of the air terminal units in order to obtain a laminar flow and thus sufficient measuring accuracy.
Inflow via an open duct
Fig. 7: Upstream conditions at open duct end The inflow at the open end of a duct causes strong turbulence. The stated volume flow rate accuracy can only be achieved with the following upstream straight duct sections: At least 5B or 5H (use larger dimensions)
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VAV terminal unit TVE-Q
Inflow via inflow aid Alternatively, an inflow aid must be installed at the open duct end upstream of the VAV terminal unit:
Installation
Fixing/suspension
Fig. 8: Upstream conditions with inflow aid The stated volume flow rate accuracy is achieved when an inflow aid is connected directly to the VAV terminal unit.
Fig. 10: Installation example suspension on ducting 1 VAV terminal unit TVE-Q 2 Screw connection 3 Sealing tape 4 Suspending the duct (both ends)
Fig. 9: Dimensions of inflow aid [mm]
5.3 Fixing/suspension
General installation information
When designing and constructing ventilation and air conditioning systems, take into account the requirements of VDI 6022, in particular: Hygienic, clean installation of all components and their air distribution surfaces. Planning inspection/cleaning openings in the ducting system. Avoidance of leaks.
Affix the unit proficiently and only to load-bearing components.
Load suspension systems only with the weight of the unit. Adjacent components and connecting ducts must be supported separately.
Only use approved and sufficiently dimensioned suspensions for fixing. Secure screw connections against self-loosening, e.g.,by locking them. Fixing material is not included in the supply package.
Only use the shortest possible drilling screws for fixing into place; these screws must not be screwed into the movement and sealing area of the damper blade.
Fig. 11: Examples of fixings for rectangular units 1 Fixing with bracket or U-channel 2 Fixing to duct bracket (L-bracket) 3 Fixing to duct bracket (Z-bracket)
VAV terminal unit TVE-Q
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Installation
Connecting the duct
5.4 Installation of secondary silencer TX
Secondary silencers are supplied separately and must be mounted directly on the VAV terminal unit at the installation location. Suspend sound attenuator separately. To optimise acoustics and flow, the TX sound attenuator has an empty chamber. When installing, observe the arrangement of the empty chamber depending on the installation location of the sound attenuator (in front of or behind the VAV terminal unit in airflow direction). For sound attenuators with H=100 mm, also note the position of the splitter Fig. 12 : Sound attenuator downstream of the control unit
(supply air): ð splitter at bottom Sound attenuator upstream of the control unit
(extract air): ð splitter at top Sound attenuator with H=100
Fig. 12: Installation of sound attenuator TX H =100 mm 1 VAV terminal unit 2 Empty chamber (500 mm) 3 Splitter at bottom (TX behind VAV terminal unit in
airflow direction) 4 Splitter at top (TX in front of VAV terminal unit in
airflow direction) 5 Air diffuser (room end) X Detail ð Fig. 14 Sound attenuator with H>100
X Detail ð Fig. 14
Fig. 14: Detail X: Connection version TVE-Q without acoustic cladding or TVE-Q-D with acoustic cladding 1 VAV terminal unit 2 Sound attenuator TX 3 Seal (to be provided by others) 4 4 screws / washers / nuts M8 or M10 (to be provided
by others) 5 4 washers / screws / M8 × 16 (to be provided by
others)
5.5 Connecting the duct
When connecting the ducting, the customer must ensure that the connection points are installed as airtight as possible in order to avoid negative influences from leakages such as air volume deviations, power consumption, etc. Unless otherwise stated, the connecting material is not included in the supply package. In the case of one-sided connection of the ductwork, intervention in the damper blade is to be prevented by suitable measures (for example, grilles). Before connecting the ducting: Check the inside of the unit for damage and loose
parts. Remove any contamination from the ducting.
Fig. 13: Installation of sound attenuator TX H =100 mm 1 VAV terminal unit 2 Empty chamber (500 mm) 3 Splitter 4 Air diffuser (room end)
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VAV terminal unit TVE-Q
Installation
Control unit with acoustic cladding
Fig. 15: TVE-Q Connecting the duct 1 TVE-Q 2 Flange seal 3 Screw connection M10 4 Duct without acoustic cladding Connection to ducting with air duct connections. Position the ducting exactly. Do not pull the dis-
tances together via the air duct connections. Screw the unit to the duct using a flange seal,
screws, washers and M10 nuts (to be provided by others). If necessary, insert additional duct clamps.
5.6 Control unit with acoustic cladding
Fig. 16: VAV terminal unit with acoustic cladding in insulated air duct For VAV terminal units with acoustic cladding ( Fig. 16 /1), run the insulation ( Fig. 16 /2) of the roomend air ducts ( Fig. 16 /3) up to the acoustic cladding ( Fig. 16 /1) of the control unit.
Retrofitting acoustic cladding It is not possible to retrofit the factory acoustic cladding to the VAV terminal unit.
VAV terminal unit TVE-Q
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Electrical connection
Installation instructions
6 Electrical connection
6.1 Safety notes
DANGER! Danger of electric shock! Do not touch any live components. Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to
work on the electrical system. Before working on the electrical system, switch
off the supply voltage and secure it against being switched on again.
6.2 Installation instructions
The VAV terminal unit was manufactured and configured on a project-specific basis. The control components are prewired at the factory. For units with electrical control components, the supply voltage must be connected, and, if necessary, also signal or bus lines must be connected. The connection is made according to the information on the control components or connection diagrams in the product data sheet or commissioning instructions for the respective control component, www.troxtechnik.com . The voltage ranges and terminal connections specified on the control components must be observed! Personnel: Qualified electrician
Observe wiring guidelines and project-specific circuit diagrams.
The electrical connection may only be made after complete installation of the unit.
For units with a 24 V supply voltage, observe the following: Electrical connection only with safety transformer Make sure that all connected units have the same GND reference point for the supply voltage.
Suitable wire clamping brackets must be provided for all connecting cables.
Electronic components contain no parts that can be replaced or repaired by the user and may only be opened by the manufacturer!
Observe the following during installation:
Legal and official regulations, in particular VDE guidelines.
Observe the technical connection rules (TCR) of the local grid operator.
Wiring work for supply voltage and signal lines on site.
The rating and manufacturing of customer-side connections and wiring must be carried out in accordance with the recognised rules of electrical engineering.
The responsibility for design, dimensioning and sizing of the electrical and network installations as well as their execution by others lies with the specialist consultant, HVAC contractor and commissioning engineer appointed by the system owner. This includes, in particular, the dimensioning of the power supplies as well as cable types and cross sections.
For network installations, the specification of the respective network variant must be observed. For information, see here: BACnet MS/TP or BACnet/IP ð BACnet.org Modbus RTU or Modbus TCP ð Modbus.org
18
VAV terminal unit TVE-Q
Commissioning and operation
Commissioning > Functional test
7 Commissioning and operation
7.1 Factory preparation
TROX VAV terminal units are prepared, calibrated and tested at the factory. The commissioned operating parameters are set and the volume flow controller is tested with regard to air distribution technology. The following exceptions apply: For VAV terminal units with Easy control compo-
nents, the operating parameters qvmin and qvmax must be set on the potentiometer by others (screwdriver required). For special versions, parameterisation by others may be necessary. The factory adjustment is documented on the silver adjustment sticker, Ä Chapter 4.4.3 `Adjustment sticker’ on page 11 .
7.2 Requirement for commissioning
Contamination, e.g. construction dust, can impair the functionality of the VAV terminal unit and cause irreparable damage to units that use a control component with a dynamic differential pressure transducer. Therefore, the ventilation and air conditioning system and its components may not be put into operation for the first time until the rooms connected to the ventilation system have been cleaned of any contamination resulting from construction work. Contamination of the ventilation system by construction dust and sucked-in dirt particles must be eliminated. In the case of systems that are heavily contaminated due to construction activities, the system may need to be cleaned before commissioning.
7.3 Commissioning
Code of good practice for commissioning Commissioning is governed by the standard “DIN EN 12599 Testing and measuring procedures for the transfer of installed ventilation and air conditioning systems”, and, if applicable, contractually agreed services between HVAC contractors, system owners and installation engineers. The standard describes the essential commissioning steps of the completeness check, function check, function measurement as well as report generation and handover.
7.3.1 Installation and connection
Once the electrical connections have been correctly installed and made, the VAV terminal unit is ready for operation.
7.3.2 Parameterisation by others and settings
Subsequent adjustment of settings Subsequent adjustments to the volume flow rate operating range may require manufacturer-specific adjustment devices or PC software, depending on the control component.
Network integration Bus-compatible control components may require integration into the building’s network infrastructure to be performed by others (network commissioning, e.g. setting the subscriber address and communication parameters). Manufacturer-specific tools such as adjustment devices or software packages and associated interface adapters may be required for this.
Special constructions VAV terminal units without standardised control components (e.g. special versions) may require parameterisation or network integration to be performed by others. Manufacturer-specific tools such as adjustment devices or software packages and associated interface adapters may be required for this.
7.3.3 Functional test
Prerequisites for the functional test VAV terminal unit has been correctly installed in the
ducting system: Airflow direction, according to airflow direc-
tion arrows Ä Chapter 4.4.1 `Rating plate’ on page 10 Upstream conditions correct, Ä Chapter 5.2 `General installation information’ on page 12 Electrical connections have been correctly installed and tested. Ventilation and air conditioning system is in operation (fans running). Air circulation is guaranteed (shut-off dampers and fire dampers are open). Supply voltage or the compressed air supply is switched on. 1. Compare volume flow rate actual value signal with setpoint value signal. The setpoint value signal can be variable or constant, depending on the intended application. 2. Check damper blade positions: Damper blade in control position Door open Door closed 3. Check override control functions
VAV terminal unit TVE-Q
19
Commissioning and operation
Volume flow rate measurement > C values
4. Further function tests on the VAV terminal unit can only be carried out if it is known which control component has been fitted. Information on this can be found in the documentation of the TROX control components or in the product information of the control component manufacturer.
7.4 Operation
Once commissioning has been completed, the VAV terminal unit will operate in a self-powered manner and require no intervention from the system owner. Depending on the area of application of the VAV terminal unit, test specifications and intervals may have to be observed; for example, when used on fume cupboards, an annual functional test must be carried out and documented. In case of a malfunction, decommission the VAV terminal unit and have it repaired before commissioning it again.
7.5 Volume flow rate measurement
Volume flow rate measurement/calculation is not possible for type TVE-Q terminal units because the differential pressure pw (differential pressure) cannot be measured at the differential pressure sensor. In addition, the unit-related constant C required for the volume flow rate calculation depends on the current blade angle.
7.5.1 C values
With the type TVE-Q VAV terminal unit, it is not possible to calculate the volume flow rate using the C value.
20
VAV terminal unit TVE-Q
Maintenance
Maintenance service
8 Maintenance
8.1 System owner’s responsibility
WARNING! Only authorised specialist personnel are allowed to perform the described maintenance measures. The system owner is responsible for maintenance. The system owner is responsible for creating a maintenance plan, for defining the maintenance goals, and for the functional reliability of the equipment. The legal regulations must be observed during maintenance, e.g. the system owner is responsible for hygienic operation in accordance with VDI 6022.
8.2 Maintenance
The VAV terminal unit, the actuator and the control components are maintenance-free with regard to wear, but the VAV terminal unit must still be included in the regular cleaning of the ventilation system. Regular care and maintenance ensure operational readiness, functional reliability, and long service life of the VAV terminal unit.
8.3 Inspection measures
DANGER! Danger of electric shock! Do not touch any live components. Electrical equipment carries a dangerous electrical voltage. Only skilled qualified electricians are allowed to
work on the electrical system. Before working on the electrical system, switch
off the supply voltage and secure it against being switched on again.
3. Check electrical feeder cables for damage and firm seating in the terminals.
4. Test the functions of the closed circuits (including volume flow rate) and, if necessary, correct the set operating parameters.
5. Check if the measured values are plausible. 6. Check special functions (override controls, alarm
suppression on monitoring systems) and make corrections, if necessary. 7. Check sequence control functions (room balancing) and make corrections, if necessary. 8. Document maintenance measures and measurement results.
8.4 Repair
Repair work is only allowed to be carried out by specialist personnel or by the manufacturer. Only genuine replacement parts must be used.
8.5 Maintenance service
Regular maintenance by the TROX Technical Service is recommended in order to ensure operational readiness, functional reliability, and long service life of the unit. The TROX Technical Service can establish the actual condition of the unit, adapt or correct it if necessary, and ensure that the unit is in proper condition after maintenance. Necessary adjustments and parameter setting can be conducted as part of maintenance so that a high level of safety is always maintained.
CAUTION! Crushing hazard. The damper blade may suddenly open or close. Switch off the voltage supply before you start working on the unit.
Personnel: Qualified electrician Protective equipment: Safety shoes
1. Remove any contamination on the VAV terminal unit that could impair functionality, particularly in the area of the air inflow openings on the damper blade.
2. Check all screws for firm seating and retighten them, if necessary.
VAV terminal unit TVE-Q
21
Faults
Troubleshooting
9 Faults
9.1 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): Complete order code (see name plate):
Description
Yes
Installation situation
Accessibility to the VAV terminal unit and the control component sufficient?
Specified airflow direction maintained? Ä Chapter 5.2 `General installation information’ on page 12
Required upstream section maintained? Ä Chapter 5.2 `General installation information’ on page 12
Are the specified distances to other ventilation components, such as sound
attenuators, fire dampers and heat exchangers, observed?
Ä Chapter 5.2 `General installation information’ on page 12
Installation position of control component observed?
Depending on the transducer type of the control component (observe the installation position sticker)
Ä Chapter 5.2 `General installation information’ on page 12
System readiness
Fan switched on?
Sufficient pre-pressure available at the VAV terminal unit, i.e. minimum dif-
ferential pressure complied with in accordance with the data sheet?
Fire dampers/shut-off devices opened in the duct section?
Check control component (for additional details, see commissioning instructions for control components)
Error-free wiring and supply voltage within tolerance zone?
Characteristic curve of the setpoint value control matching the control com-
ponent or its set characteristic curve parameterisation?
Example: Operating mode V2 = characteristic 2-10 V DC; also see silver
adjustment sticker and product data sheets of the control components
If necessary, adapt the actuators again (only required for certain control
components)
No
Not
applicable
22
VAV terminal unit TVE-Q
Faults
Troubleshooting
Description
Yes
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, qvmin, qvmax, Open) suppresses the normal control
mode via setpoint signal.
Check the operating point at qvmin; if necessary, temporarily disconnect the
external setpoint value specification to prevent the influence of the external
control and only check the controller itself at the operating point qvmin.
Check the operating point at qvmax; check the direction of rotation of the
damper in each case.
Check damper position to setpoint, detection of damper position,
Ä Chapter 4.3 `Position of the damper blade’ on page 10
If the damper is fully open, the setpoint value is not reached.
This is an indicator for an inadequate differential pressure.
If the damper is completely closed, although control operation is actually expected, a priority control may have been activated that overrides the control process. Here, too, the function can be verified at the operating point qvmin when the entire circuitry is removed (with the exception of the power supply)
No
Not
applicable
Room situation (pressure conditions and air transfer behaviour).
The overall situation in the room depends on many factors, in particular:
Supply air volume flow rates and their tolerance zone Extract air volume flow rates and their tolerance zone Leaktightness of the room or size of air transfer openings Type of control components used (control speed) and their control Type of the selected leading control concept, control based on volume flow rate or pressure
Note: Note: The planning concept and not the individual VAV terminal unit is decisive for achieving compliance with the desired room situation. Even if the technical data of the installed air terminal units is complied with, the desired room situation can only be achieved if the necessary components have been selected during the design phase, taking into account the requirements.
VAV terminal unit TVE-Q
23
Decommissioning
Disposal
10 Decommissioning
Once the device has reached the end of its service life, it must be dismantled and disposed of in an environmentally friendly manner.
10.1 Safety
Personnel Disassembly may only be carried out by specially
trained personnel. Only trained and qualified electricians may work on
the electrical system.
Electrical system
DANGER! Danger of death due to electric current! Danger of electric shock! Do not touch any live components! Live electrical components may suddenly move uncontrollably and seriously injure people. Therefore: Switch off the power supply and disconnect the
product permanently before you begin to disassemble it.
WARNING! Risk of injury due to incorrect disassembly! Stored residual energy, sharp-edged components, sharp points and corners on and in the device or on the required tools can cause injuries. Therefore: Make sure there is sufficient space before
starting work. Handle all open, sharp-edged components with
care. Disassemble components professionally. Be
aware that some components are very heavy. Use lifting gear if necessary. Secure components to prevent them from falling or toppling. When in doubt, contact the manufacturer.
10.2 Disassembly
Before you start disassembly: Switch off the device and secure it against being
switched on accidentally. Physically disconnect the entire power supply from
the device and discharge any stored residual energy. Remove operating and auxiliary materials as well as residual processing materials and dispose of them in an environmentally friendly manner. Then professionally clean subassemblies and components and disassemble them in compliance with local occupational safety and environmental protection regulations.
10.3 Disposal
If no return or disposal agreement has been made, disassembled components must be recycled: Scrap the metals. Take plastic parts to be recycled. Dispose of other components appropriately,
depending on their material properties.
ENVIRONMENT! Risk of harm to the environment due to improper disposal! Electronic waste, electronic components, lubricants and other auxiliary materials are considered hazardous waste and may only be disposed of by authorised specialist companies!
Contact the local authorities or specialised disposal companies for details on environmentally safe disposal.
24
VAV terminal unit TVE-Q
11 Technical data
11.1 General data
Nominal sizes
Volume flow rate range Volume flow rate control range (controller with dynamic differential pressure measurements) Minimum differential pressure Maximum permissible differential pressure
Operating temperature
Technical data
Control component/attachments
200 × 100, 300 × 100 200 × 200, 300 × 200, 400 × 200, 500 × 200, 600 ×
200 16 960 l/s or 58 3456 m³/h Approx. 10 to 100 % of the nominal volume flow rate Up to 50 Pa (without secondary silencer) Control component with dynamic transducer: 900 Pa, Control component with static transducer: 600 Pa 10 50 °C
11.2 Control component/attachments
The following control components are available for the VAV terminal unit TVE-Q:
Attachment Controlled Interface variable
Effective pressure transducer
Actuator
Easy controller dynamic
Easy
qv
0 10 V
Integrated
Slow-running, integrated
Compact controller dynamic
XB0
qv
0 10 V or 2 10 V
XM0
qv
Modbus-RTU or 0 10 V
or 2 10 V
XM0-J6
qv
Modbus RTU with RJ12
socket (for X-AIRCON-
TROL)
Integrated
Slow-running, integrated
XDMB0
qv
BACnet-MS/TP or
Modbus-RTU or 0 – 10 V
or 2 – 10 V
Compact controller static
XS0
qv
Modbus-RTU or 0 10 V
or 2 10 V
XS0-J6
qv
Modbus RTU with RJ12
socket (for X-AIRCON-
TROL)
Integrated
Slow-running, integrated
XSMB0
qv
BACnet-MS/TP or
Modbus-RTU or 0 – 10 V
or 2 – 10 V
qv volume flow rate TROX
Make
VAV terminal unit TVE-Q
25
Index
12 Index
A
Acoustic cladding……………………………………………… 17 Adjustment……………………………………………………….. 11 Airflow direction…………………………………………. 10 , 13 Application…………………………………………………………. 6 Area of application……………………………………………… 6 Attachments…………………………………………………….. 25
C
CE marking………………………………………………………. 11 Characteristic……………………………………………………. 11 Checking delivered goods for completeness………….. 9 Circular silencers………………………………………………. 12 Claims for material defects…………………………………… 5 Commissioning…………………………………………………. 19 Connecting the air duct……………………………………… 16 Control components………………………………………….. 25 Copyright…………………………………………………………… 5 Correct use………………………………………………………… 6 C values………………………………………………………….. 20
D
Dangers…………………………………………………………….. 6 Declaration of Conformity…………………………………… 11 Declaration of Incorporation……………………………….. 11 Decommissioning……………………………………………… 24 Defect liability guarantee……………………………………… 5 Disassembly…………………………………………………….. 24 Disposal………………………………………………………….. 24 Duct connection……………………………………………….. 16
E
Easy……………………………………………………………….. 10 Electrical connection
Installation instructions………………………………….. 18 Electric current…………………………………………………… 7
F
Faults……………………………………………………………… 22 Fire dampers……………………………………………………. 12 Fixing………………………………………………………………. 15 Functional description……………………………………….. 10 Functional test………………………………………………….. 19
H
Heat exchanger………………………………………………… 12 Hybrid mode…………………………………………………….. 11 Hygiene requirements…………………………………………. 7
I
Incorrect use……………………………………………………… 6 Inspection………………………………………………………… 21 Installation location……………………………………………. 12 Insulation…………………………………………………………. 17
M
Maintenance…………………………………………………….. 21 Minimum differential pressure…………………………….. 25 Misuse………………………………………………………………. 6
N
Nominal volume flow rate…………………………………… 11
O
Operating mode………………………………………………… 11 Operating temperature………………………………………. 25 Operation………………………………………………………… 20 Order code………………………………………………………. 10 Other applicable documentation…………………………… 4
P
Packaging…………………………………………………………. 9 Personnel………………………………………………………….. 8
Dismantling…………………………………………………. 24 Position of the damper blade……………………………… 10 Product overview………………………………………………. 10 Protective equipment………………………………………….. 8
Q
QR code………………………………………………………….. 10
R
Rating plate……………………………………………………… 10 Repair………………………………………………………… 8 , 21 Residual risks…………………………………………………….. 6
S
Safety……………………………………………………………… 12 Scale sticker…………………………………………………….. 10 Secondary silencer……………………………………………. 16 Serial number…………………………………………………… 10 Service………………………………………………………. 5 , 21 Signs………………………………………………………………… 6 Sound attenuators…………………………………………….. 12
Installation…………………………………………………… 16 Spare parts………………………………………………………… 8 Storage……………………………………………………………… 9 Suspending……………………………………………………… 15 Symbols……………………………………………………………. 4 System owner……………………………………………………. 7 System owner’s obligations………………………………….. 7
T
Technical data………………………………………………….. 25 Technical support……………………………………………….. 5 Thermal insulation…………………………………………….. 17 Transport…………………………………………………………… 9 Transport damage………………………………………………. 9 Transport inspection……………………………………………. 9 Troubleshooting………………………………………………… 22
26
VAV terminal unit TVE-Q
Index
TROX Technical Service……………………………………. 21
U
Unauthorised use……………………………………………….. 6 Upstream conditions…………………………………………. 13 Use…………………………………………………………………… 6
V
Volume flow rate calculation……………………………….. 20 Volume flow rate control range……………………………. 10
Volume flow rate measurement…………………………… 20
W
Wiring Installation instructions………………………………….. 18
VAV terminal unit TVE-Q
27
TROX SE Heinrich-Trox-Platz 47506 Neukirchen-Vluyn Germany
Phone: +49 2845 202-0 +49 2845 202-265 Email: trox-de@troxgroup.com http://www.troxtechnik.com
© TROX GmbH 2023
Documents / Resources
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TROX TVE-Q Rectangular VAV Terminal Units [pdf] Instruction Manual CD10018, TVE-Q Rectangular VAV Terminal Units, TVE-Q, Rectangular VAV Terminal Units, VAV Terminal Units, Terminal Units, Units |