TVE | TROX INDIA PRIVATE LIMITED
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Differential pressure measurement via damper blade

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Compact controller with display

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Junction

For all upstream conditions

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Tested to VDI 6022

Tested to VDI 6022

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TVE

Compact solution for low airflow velocities

Circular air terminal units for variable air volume systems with low airflow velocities, suitable even with unfavourable upstream conditions

  • Effective pressure measurement not with a tube, but by means of the damper blade
  • Effective pressure transmission through effective pressure channel in the shaft
  • Terminals with protective cover - no junction box required
  • Any airflow direction if dynamic transducer is used
  • Suitable for airflow velocities of 0.5 – 13 m/s
  • Compact dimensions allow for use in restricted spaces
  • Plug-and-play solution in conjunction with X-AIRCONTROL room control
  • Exact measurement even with low airflow velocities
  • Any installation orientation even with static transducer
  • Closed blade air leakage to EN 1751, at least class 3
  • Casing air leakage to EN 1751, class C
  • Volume flow rate range 1:25

 

Optional equipment and accessories

  • Acoustic cladding for the reduction of case-radiated noise
  • Secondary silencer CA (for Germany and Switzerland), CAH (for EMEA) or CF, for the reduction of air-regenerated noise
  • Hot water heat exchanger WL and electric air heater EL for reheating the airflow

General information

Application

  • Circular VAV terminal units for use in ventilation and air conditioning systems
  • For virtually all control, inductor and shut-off tasks in the supply air or extract air area
  • Also for unfavourable upstream conditions at low airflow velocities 
  • Closed-loop volume flow control using an external power supply
  • For variable or constant volume flow systems
  • Shut-off via override control by others



Special features

  • High effective pressure signal at a small angle of attack
  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can be measured and subsequently adjusted on site; additional adjustment tool may be necessary (depending on the variant of the control component)
  • Effective pressure monitoring tubeless via damper blade
  • Effective pressure transmission through effective pressure channel in shaft
  • Any direction of flow with dynamic transducer
  • Any installation orientation, even with static transducers
  • Suitable for airflow velocity of 0.5 - 13 m/s
  • Compact dimensions for use in confined ceiling areas


Nominal sizes

  • 100, 125, 160, 200, 250, 315, 400



Variants

  • TVE: VAV terminal unit
  • TVE-D: VAV terminal unit with acoustic cladding
  • TVE-FL: VAV terminal unit with flanges on both ends
  • TVE-D-FL: VAV terminal unit with acoustic cladding and flanges on both ends
  • Units with acoustic cladding and/or a secondary silencer CA (for Germany and Switzerland), CH (for EMEA) or CF for demanding acoustic requirements


Construction

  • Galvanised sheet steel
  • P1: Powder-coated, silver grey (RAL 7001)
  • A2: Stainless steel



Parts and characteristics

  • Ready-to-commission unit which consists of mechanical parts and control components.
  • Damper blade with integrated measuring unit
  • Shaft with effective pressure channel for measured value transmission
  • Factory-assembled control components complete with wiring
  • Aerodynamic functional testing on a special test rig prior to shipping of each unit
  • Set-up data is given on a label or volume flow rate scale affixed to the unit
  • High control accuracy, even in unfavourable upstream conditions


Attachments

  • EASY controller: Compact unit consisting of controller with potentiometers, effective pressure transducer and actuator
  • Compact controller: Compact unit consisting of controller with potentiometers, effective pressure transducer and actuator
  • Compact controller Modbus: Variant with Modbus RTU interface; plug-and-play solution in conjunction with X-AIRCONTROL room control


Accessories

  • G2: Matching flanges for both ends
  • D2: Double lip seals on both ends (factory fitted)


Useful additions

  • Secondary silencer CA (for Germany and Switzerland), CAH (for EMEA) or CF
  • Heat exchanger WL
  • Electric air heater EL



Construction features

  • Circular casing
  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigots with groove for seal
  • Position of the damper blade indicated externally at position indicator
  • TVE-FL: Flanges to EN 12220
  • Control component can be replaced



Materials and surfaces

Galvanised sheet steel

  • Casing made of galvanised sheet steel
  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Powder-coated construction (P1)

  • Casing made of galvanised sheet steel, surface powder coated, silver grey (RAL 7001)
  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Stainless steel construction (A2)

  • Casing made of stainless steel 1.4301
  • Damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
  • Damper blade seal made of plastic, TPU, antimicrobial
  • Plastic plain bearings

Acoustic cladding

  • Variant with acoustic cladding (-D)
  • Acoustic cladding made of galvanised sheet steel
  • PE ring for the insulation of structure-borne noise
  • Lining is mineral wool

Mineral wool

  • To EN 13501, fire rating Class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Non-hazardous to health thanks to being highly biosoluble in accordance with the Ordinance on Hazardous Substances and Note Q of the European Directive (EC) No. 1272/2008


Standards and guidelines

Fulfils the hygiene requirements of

  • EN 16798, Part 3
  • VDI 6022, Sheet 1
  • DIN 1946, Part 4
  • For other applicable standards and guidelines refer to the hygiene certificate

Casing leakage

  • EN 1751, Class C

Closed blade air leakage:

NS 100 – 160

  • EN 1751, Class 3
  • Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage

NS 200 – 400

  • EN 1751, Class 4
  • Meets the increased requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage


Maintenance

  • Maintenance-free as construction and materials are not subject to wear

Technical information

Function, Quick Sizing, Specification Text, Order Code

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE
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① Double lip seal
② Casing
③ Damper blade including effective pressure sensor
④ Shaft with effective pressure channel
⑤ Electronic volume flow controller

Functional description

The control damper blade works as an actuator and as an effective pressure sensor. Through the effective pressure channel in the shaft, the detected effective pressure reaches the transducer (static or dynamic), where it is converted into an electrical signal and compared with the setpoint value. If there is a control deviation, the integrated actuator changes the position of the control damper blade. As a result, the volume flow rate is maintained at a constant level in close tolerances over the entire differential pressure range.


 

Nominal sizes100 – 400 mm
Volume flow rate range4 - 1388 l/s or 14 - 5000 m³/h

Volume flow rate control range (unit with dynamic effective pressure measurement)

Approx. 4 – 100 % of the nominal volume flow rate
Minimum differential pressureUp to 50 Pa (without circular silencer)
Maximum differential pressureControl component with dynamic transducer: 900 Pa, control component with static transducer: 600 Pa
Operating temperature10 to 50 °C

Quick sizing tables provide a good overview of the minimum differential pressures, the volume flow rate accuracy and the room sound pressure levels that can be expected. Intermediate values may be achieved by interpolation.

The sound power levels for calculating the sound pressure levels were measured in the TROX laboratory according to DIN EN ISO 5135 - see "Basic information and nomenclature".

Precise results and spectral data for all control components can be calculated with our Easy Product Finder design program. The first selection criteria for the nominal size are the actual volume flow rates qvmin and qvmax.


Volume flow rate ranges and minimum differential pressure values
The minimum differential pressure of VAV terminal units is an important factor in designing the ductwork and in rating the fan including speed control. Sufficient static differential pressure (Δpstat,min) must be ensured for all operating conditions and for all controllers. The measurement points for fan speed control must be selected accordingly. The volume flow rates given for VAV terminal units depend on the nominal size and on the control component (attachment) that is installed.

 Volume flow rate ranges and minimum differential pressure values

Controller for dynamic and static pressure measurements
Attachment: Easy, XB0, XM0, XM0-J6, XS0, XS0-J6


Nominal size

qv [l/s]

qv [m³/h]

Δpstmin [Pa]

Δqv [±%]

100414111118
100351276911137
10067241222937445
10098354466379955
125621111119
12558207679117
125109393192531375
125160579415468815
1601035111118
16093333789107
160175631222630345
160258929475665745
2001655111118
20015054166787
2002851027192225295
2004201513404754615
2502587111118
25022882256777
2504331558172022255
2506362293374247535
31552186111116
315359129178897
3156652395

23

25

26

28

6
3159723500

49

53

56

59

5
400117420111114
4005411947888

8

7
4009653473

23

2425266
40013885000

47

49

51

53

5

① Basic unit
② Basic unit with circular silencer CF, insulation thickness 50 mm, length 500 mm
③ Basic unit with circular silencer CF, insulation thickness 50 mm, length 1000 mm
④ Basic unit with circular silencer CF, insulation thickness 50 mm, length 1500 mm

 

Quick sizing table for sound pressure levels

The quick sizing tables are based on generally accepted attenuation levels. If the sound pressure level exceeds the required level, a larger air terminal unit and/or a silencer or acoustic cladding is required. For more information on the acoustic data, see basic information and nomenclature.

Quick sizing table for air-regenerated noise LPA
Controller including silencer

Nominal size

qv [l/s]

qv [m³/h]

Δpst = 150 Pa

Δpst = 500 Pa

10041432< 15< 15< 154217< 15< 15
100351274632282456403431
100672415137332960474238
100983545537323064524744
1256213715< 15< 15482616< 15
125582074834282559423531
1251093935239343162474137
1251605795641373463494440
1601035422415< 1554382922
160933334533282558433631
1601756315038343158443834
1602589295340353357443936
20016553320< 15< 1544322621
2001505414636312857474239
20028510274938343258494441
20042015135343403858494542
25025874029221752423631
2502288224637322958504541
25043315584739343257504541
25063622935245413857504542
315521864234282454474238
31535912914336312855484441
31566523954538333154484441
31597235004841373454474441
4001174204742373257534843
40054119474540353155504643
400

541

1947

4438343154494642
400138850004842383554494542

Air-regenerated noise LPA [dB(A)] at static differential pressure Δpst 150 or 500 Pa

① Basic unit
② Basic unit with circular silencer CF, insulation thickness 50 mm, length 500 mm
③ Basic unit with circular silencer CF, insulation thickness 50 mm, length 1000 mm
④ Basic unit with circular silencer CF, insulation thickness 50 mm, length 1500 mm

 

Quick sizing table for case-radiated noise LPA
Controller including acoustic cladding

Nominal size

qv [l/s]

qv [m³/h]

Δpst = 150 Pa

Δpst = 500 Pa

10041415< 1525< 15
1003512729183928
1006724134234332
1009835437264837
12562120< 153120
1255820731204231
12510939335244534
12516057940294736
160103522153427
1609333325183831
16017563131243932
16025892936294033
2001655< 15< 1524< 15
20015054126< 153722
200285102732174126
200420151338234328
250258724< 153621
25022882232174429
250433155836214631
250636229343284833
3155218627< 153821
315359129132154427
315665239537194628
315972350041244730
40011742032164226
400541194736204630
400965347337214832
4001388500043274933

Case-radiated noise LPA [dB(A)] at static differential pressure Δpst 150 or 500 Pa

① Basic unit
② Basic unit with acoustic cladding
 

Note:

Information on case-radiated noise for combinations of basic unit and optional acoustic cladding and secondary silencer can be found in the Easy Product Finder design program.


Specification text

Circular VAV terminal units for variable and constant air volume systems, suitable for supply or extract air, available in 7 nominal sizes. High control accuracy even in case of unfavourable upstream conditions. Control range at least 1:25. The effective pressure is captured by means of the damper blade, which is controlled accordingly. The effective pressure is transmitted to the control component via a channel in the shaft (no measuring tubes required). Closed blade air leakage to EN 1751: at least class 3, from NS 200: class 4. Casing air leakage to EN 1751, class C. Ready-to-commission unit which consists of the mechanical parts and the factory mounted electronic control component. Position of the damper blade indicated externally at the control component The damper blade is factory set to open position, which allows a ventilation airflow even without control. Meets the hygiene requirements of EN 16798, Part 3, of VDI 6022, Sheet 1, and of DIN 1946, Part 4.

Special features

  • High effective pressure signal at a small angle of attack
  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can be measured and subsequently adjusted on site; additional adjustment tool may be necessary (depending on the variant of the control component)
  • Effective pressure monitoring tubeless via damper blade
  • Effective pressure transmission through effective pressure channel in shaft
  • Any direction of flow with dynamic transducer
  • Any installation orientation, even with static transducers
  • Suitable for airflow velocity of 0.5 - 13 m/s
  • Compact dimensions for use in confined ceiling areas

Materials and surfaces

  • Casing made of galvanised sheet steel
  • Damper blade and shaft made of plastic, PA6, UL94-V0
  • Damper blade seal made of plastic, TPU, micro bacterial resistant
  • Plastic plain bearings

Equivalence criteria

  • Declaration of hygiene conformity in accordance with VDI 6022, Sheet 1 (01/2018), ÖNORM H 6020 (03/2015) and ÖNORM H 6021 (08/2016)
  • Independent of the airflow direction – flow in both directions
  • Suitable for airflow velocity of 0.5 - 13 m/s
  • No inflow lengths required (after T-piece also)
  • Fulfils the hygiene requirements of EN 16798 Part 3, VDI 6022 Sheet 1, DIN 1946 Part 4.
  • Setting the volume flow rates without adjustment device via Vmin and Vmax potentiometer
  • Electrical connections with screw terminals, no additional terminal boxes required
  • Acoustic data measured to ÖNORM EN ISO 5135
  • Maximum system deviation 5 % at qvmax, without inflow length

Connection

  • Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180

Technical data

  • Minimum differential pressure: up to 50 Pa (without circular silencer)

Maximum differential pressure

  • Control component with dynamic transducer: 900 Pa
  • Control component with static transducer: 600 Pa

Specification text for attachment

Variable volume flow control with electronic Easy controller to connect an external control signal; actual value signal can be integrated into the central BMS.

  • Supply voltage 24 V AC/DC
  • Signal voltages 0 – 10 V DC
  • Possible override controls with external switches using volt-free contacts: CLOSED, OPEN, qvmin and qvmax
  • Potentiometers with percentage scales to set the volume flow rates qvmin and qvmax
  • The actual value signal relates to the nominal volume flow rate such that commissioning and subsequent adjustment are simplified
  • Volume flow rate control range: approx. 4 – 100 % of the nominal volume flow rate
  • Indicator light that is highly visible from the outside for signalling the various operating conditions

Electrical connections with screw terminals. Double terminals for looping the supply voltage, i.e. for the simple connection of voltage transmission to the next controller.


Order code for volume flow control (with Easy attachment)

TVED / 200 / D2 / Easy
|||||
12567

1 Type TVE
VAV terminal unit 

2 Acoustic cladding
No entry required: None
D With acoustic cladding 

5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400 

6 Accessories
No entry: without accessories
D2 Double lip seal both ends

7 Attachments (control components)
Easy Volume flow controller, dynamic, analogue interface, setting of qmin and qvmax with potentiometers (by others)

Order example: TVE-D/125/D2/Easy
Acoustic claddingWith
MaterialGalvanised sheet steel
Nominal size200 mm
AccessoriesDouble lip seal both sides
Attachments (control components)Easy volume flow controller, dynamic, analogue interface, setting qvmin and qvmax with potentiometers

 



Order code for volume flow control (with VARYCONTROL attachment)

TVEDP1FL / 100 / D2 / XB0 / V0 / 200 – 900 [m³/h]
||||||| |||
1234567 8910

1 Type
TVE VAV terminal unit
 
2 Acoustic cladding
No entry required: None
D With acoustic cladding
 
3 Material
No entry required: Galvanised sheet steel
P1 Duct powder-coated, RAL 7001, silver grey
A2 Duct made of stainless steel
 
4 Duct connection
No entry required: Attachment for duct in accordance with EN 1506; with groove for optional seal
FL Flanges on both ends
 
5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400
 
6 Accessories
No entry required: None
D2 Double lip seal both sides (only with insertion with groove)
G2 Matching flange to each flange (only with FL)
 
7 Attachment (control component)

XB0 Volume flow controller, dynamic, analogue interface
XM0 Volume flow controller, analogue interface and Modbus RTU, display
XM0-J6 Volume flow controller, Modbus RTU interface, display, RJ12 bush (for X-AIRCONTROL)
XS0 Volume flow controller, static, interface analogue and Modbus RTU, display
XS0-J6 Volume flow controller, static, Modbus RTU interface, display, RJ12 bush (for X-AIRCONTROL)
 
8 Operating mode
V Variable, setpoint value range (not for XM0-J6, XS0-J6)
F Constant value, a setpoint value (not for XM0-J6, XS0-J6)
M Modbus RTU interface (only selectable with XM0, XS0 attachment, mandatory for XM0-J6, XS0-J6)
 
9 Signal voltage range (only with operating mode V, F)
0 0 – 10 V DC
2 2 – 10 V DC
 
10 Operating values for factory setting
Volume flow rates in [m³/h or l/s] see unit
qvconst (in operating mode F)
qvmin – qvmax (in operating mode V, M)
 
11 Unit
m³/h Volume flow rates in m³/h
l/s Volume flow rates in l/s


Order example: TVE/200/D2/XB0/V0/500–1200 m³/h
Acoustic claddingWithout
MaterialGalvanised sheet steel
FlangeWithout
Nominal size200 mm
AccessoriesDouble lip seal both ends
Attachments (control components)Volume flow controller, dynamic, analogue interface
Operating modeVariable
Signal voltage range0 – 10V DC
Volume flow rateqvmin = 500 m³/hqvmax = 1200 m³/h

Variants, Dimensions and weights, Product details

  • VARIANTS
  • DIMENSIONS AND WEIGHTS
  • PRODUCT DETAILS

Material

Order code detail Part Material
- Casing Galvanised steel
- Damper blade Plastic, PA6, UL 94, flame retardant
- Damper blade seal Plastic, TPU, micro bacterial resistant
- Effective pressure sensor Plastic, PA6, UL 94, flame retardant
- Plain bearings Plastic
- Shaft Plastic, PA6, UL 94, flame retardant


Order code detailPartMaterial
P1CasingGalvanised sheet steel - powder coated, RAL 7001, silver grey
P1Damper bladePlastic, PA6, UL 94, flame retardant 
P1
Damper blade sealPlastic, TPU, micro bacterial resistant
P1
Effective pressure sensorPlastic, PA6, UL 94, flame retardant 
P1
Plain bearingsPlastic
P1
ShaftPlastic, PA6, UL 94, flame retardant


Order code detailPartMaterial
A2CasingStainless steel, material no. 1.4301 
A2
Damper bladePlastic, PA6, UL 94, flame retardant
A2
Damper blade sealPlastic, TPU, micro bacterial resistant
A2
Effective pressure sensorPlastic, PA6, UL 94, flame retardant
A2
Plain bearingsPlastic
A2
ShaftPlastic, PA6, UL 94, flame retardant


Order code detailPartMaterial
DAcoustic claddingGalvanised sheet steel 
D
Insulation of structure-borne noise Polyethylene, PEPolyethylene, PE
D
LiningMineral wool to EN 13501, fire rating class A1, non-combustible
Connection type
  • Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180

Dimensions/weight for TVE

NSL∅Dkg
100310991,3
1253101241,5
1603101591,8
2004001992,5
2504002493
3154003143,8
4004853994,9


Dimensions/weight TVE-D

NSLL₁∅D∅D₃kg
100310233991992,6
1253102331242193
1603102331592613,6
2004003121992995
2504003122493546,1
3154003123144167,5
40048541739949810,6

Connection type
  • Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180


Dimensions/weight TVE-FL

NSL∅D∅D₁∅D₂nDkg
10029899132152451,9
125298124157177452,2
160298159192212652,7
200388199233253653,6
250388249283303654,4
315388314352378855,8
400474399438464857,5

Note: Tolerances for dimensions L: ± 5 mm


Dimensions/weight for TVE-D-FL

NSLL₁∅D∅D₁∅D₂∅D₃nDkg
10029823399132152199453,2
125298233124157177219453,7
160298233159192212261654,5
200388312199233253299656,1
250388312249283303354657,5
315388312314352378416859,5
4004744173994384644988513,2

Note: Tolerance for dimension L: ± 5 mm


Installation and commissioning 

  • Any installation orientation
  • TVE-D: For constructions with acoustic cladding, ducts on the room side should have cladding up to the acoustic cladding of the controller


Upstream conditions

The effective pressure, which is decisive for the volume flow rate, is recorded and averaged on the control damper blade. Therefore, the volume flow rate accuracy Δqv is independent of the upstream section.

Duct connections, e.g. branches off the main duct, must comply with EN 1506 and EN 13180.



TVE control components VARYCONTROL




AttachmentControlled variableInterfaceEffective pressure transducerActuatorManufacturer
Easy controller, dynamic
Easy

qv

0 – 10 VintegralSlow running

integral
Compact controller, dynamic
XB0

qv

0 – 10 V or 2 – 10 VintegralSlow running

integral
XM0

qv



Modbus RTU interface


integralSlow running

integral
XM0–J6

qv



Modbus RTU interface with RJ12 socket (for X-AIRCONTROL)


integralSlow running

integral
Compact controller, static
XS0

qv



Modbus RTU interface


integralSlow running

integral
XS0–J6

qv



Modbus RTU interface with RJ12 socket (for X-AIRCONTROL)


integralSlow running

integral

qv Volume flow rate
① TROX

Attachments

  • Attachments
Access to attachments, mounted on one side TVE_gc_08ai.png


Space requirement, control component on one side


Attachment

Easy controller: Easy

250

200

300

Compact controller: XB0, XM0, XM0-J6, XS0, XS0-J6

250

200

300

Space required for commissioning and maintenance

Keep sufficient space free in the area of the attachments for commissioning and maintenance. It may be necessary to provide sufficiently sized inspection access openings.


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Thank you for your message!

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +91 (0) 22 6775-1600 | Fax: +91 (0) 226775-1613