TVA_img_07psd.png
Easyregler-Compactregler_img_01_2020_01_DE__2_psd.psd.link
Easy controller, Compact controller

Easy controller, Compact controller

TU-ELAB-Regler_img_01_2020_01_DE__3_psd.psd.link
TROX UNIVERSAL controller, TROX LABCONTROL controller

TROX UNIVERSAL controller,

TROX LABCONTROL controller

TVA_img_08psd.png
Circular connection on the fan end

Circular connection on the fan end

00075106_0psd.psd.link
Rectangular connection on the room end

Rectangular connection on the room end

00073144_0ai.ai.link
Tested to VDI 6022

Tested to VDI 6022

TVA_img_07psd.png
Easyregler-Compactregler_img_01_2020_01_DE__2_psd.psd.link
TU-ELAB-Regler_img_01_2020_01_DE__3_psd.psd.link
TVA_img_08psd.png
00075106_0psd.psd.link
00073144_0ai.ai.link

TVA 

For extract air systems with demanding acoustic requirements

 


VAV terminal units for extract air control in buildings with variable air volume systems and demanding acoustic requirements

  • Highly effective integral attenuator
  • Box style construction for the reduction of the airflow velocity
  • Electronic control components for different applications (Easy, Compact, Universal, and LABCONTROL)
  • Closed blade air leakage to EN 1751, up to class 4
  • Casing air leakage to EN 1751, up to class C

 

Optional equipment and accessories

  • Acoustic cladding for the reduction of case-radiated noise
  • Secondary silencer Type TS for the reduction of air-regenerated noise

 


 


 

General Information

Application

  • Rectangular VAV terminal units for use in ventilation and air conditioning systems
  • For control, inductor and shut-off tasks in the extract air area with high acoustic requirements
  • Integral attenuator
  • Closed-loop volume flow control using an external power supply
  • For variable or constant volume flow systems
  • Shut-off via override control by others
  • Can also be used for duct or room pressure control with suitable control components

Special features

  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Hygiene tested and certified
  • Factory set-up or programming and aerodynamic function testing
  • Setting and subsequent parameterisation on the control component possible, separate setting device may be required


Nominal sizes

125, 160, 200, 250, 315, 400


Variants

  • TVA: Extract air unit
  • TVA-D: Extract air unit with acoustic cladding
  • Units with acoustic cladding and/or secondary silencer Type TS for very demanding acoustic requirements
  • Acoustic cladding cannot be retrofitted



Parts and characteristics

  • Ready-to-commission unit which consists of mechanical parts and control components
  • Averaging effective pressure sensor for volume flow rate measurement
  • Damper blade
  • Integral attenuator
  • Factory assembled control components complete with wiring and tubing
  • 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 case of 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
  • Universal controllers: Controllers, differential pressure transducers and actuators for special applications
  • LABCONTROL: Control components for air management systems



Accessories

  • Double lip seal (factory fitted)



Useful additions

  • Secondary silencer Type TS



Construction features

  • Rectangular casing
  • Spigot on the fan end suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for double lip seal
  • Connection on the room end suitable for ducts
  • Baffle plate is fitted after the damper blade for optimum aerodynamic performance
  • Position of the damper blade indicated externally at shaft extension
  • Thermal and acoustic insulation (lining)



Materials and surfaces
Casing and damper blade made of galvanised sheet steel

  • Damper blade seal made of TPE plastic
  • Lining is mineral wool
  • Effective pressure sensor made of aluminium
  • Plastic plain bearings
  • Shaft and linkage made of galvanised steel

Variant with acoustic cladding (-D)

  • Acoustic cladding made of galvanised sheet steel
  • Lining is mineral wool
  • Rubber elements for the insulation of structure-borne noise

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
  • Faced with glass fibre fabric as protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth


Standards and guidelines
Fulfils the hygiene requirements of

  • EN 16798, Part 3
  • VDI 6022, Sheet 1
  • DIN 1946, Part 4
  • Further standards, guidelines in accordance with hygiene certificate

Casing leakage:
NS 125 – 200

  • EN 1751, Class C

NS 250 – 400

  • EN 1751, Class B

Closed blade air leakage: 

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



Maintenance

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


Technical information

Function, Technical data, Quick sizing, Specification text, Order code, Related Products

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE
  • RELATED PRODUCTS
Schematic illustration of the TVA TVA_gc_01ai.png

① Integral sound attenuator

② Double lip seal

③ Damper blade

④ Effective pressure sensor

⑤ Control components, e.g. an Easy controller

The VAV terminal unit is fitted with an effective pressure sensor for measuring the volume flow rate. 

The control components (attachments) include an effective pressure transducer that transforms the effective pressure into an electric signal, a controller, and an actuator; the control functions can be achieved with an Easy controller or with a Compact controller or with individual components (Universal or LABCONTROL).

For most applications, the setpoint value comes from a room temperature controller. The controller compares the actual value with the setpoint value and alters the control signal of the actuator if there is a difference between the two values.
An integral attenuator reduces the noise that is created by the restriction of the airflow.

Due to the larger rectangular cross section at the room end, the airflow velocity is about half the velocity in the circular duct.

Nominal sizes125 – 400 mm
Volume flow rate range

14 – 2007 l/s or 50 – 7228 m³/h


Volume flow rate control range (unit with dynamic effective pressure measurement)approx. 10 – 100 % of the nominal volume flow rate
Minimum differential pressure

Up to 258 Pa (without circular silencer)


maximum differential pressure1000 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". Exact results as well as spectral data for all control components are provided by the design 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. It must be ensured that under all operating conditions a sufficient pressure differential across the regulator (Δpstat,min) is pending. 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
Control component dynamic measurement principle - Easy (potentiometer)
Attachment: Easy

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
12514502220
1255620121269
1259835365817
1251405041311645
16024832219
1609433922289
16016559566846
1602368511351725
200371332319
20015054027379
200263948811126
20037613551652285
250582082319
25023684822349
2504131488681036
25059121281392115
315963442319
315390140526349
3156852467801046
31598035281632115
4001575632219
400638229822279
4001120403367826
400160257681371675

① Basic unit
② Basic unit with secondary silencer TS




Volume flow rate ranges and minimum differential pressure values
Control component dynamic measurement principle – qv Extended
Attachments: BC0, BL0 **, BM0, BM0-J6

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
12514502220
1256824431398
125121437991236
1251756312052565
16024832219
16011441132408
1602057381021296
16029610662112695
200371332319
20018265539548
20032711761241726
20047116982583585
250582082319
250285102733498
25051318471051596
25074026662183305
315963442319
315473170338508
31585130621231596
315122844212563325
4001575632219
400774278532398
400139150061031266
400200772282152625

① Basic unit
② Basic unit with secondary silencer TS
** Control component to be discontinued in the future - please do not plan for new projects.


Volume flow rate ranges and minimum differential pressure values
Control component dynamic measurement principle - qv As standard
Attachments: BUDN, BUDNF, LN0, LK0, XB0, XB4, (B13 *, B1B *)

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
12514502220
1255820723289
12510136569866
1251455221411765
16024832219
1609734923299
16017161671906
1602458821451845
200371332319
20015555728399
200272980861196
20039014041772455
250582082319
25024387424369
2504281539731106
25061222051492265
315963442319
315402144828368
3157092553861116
315101536571752275
4001575632219
400658236823298
4001159417372886
400166059781471805

① Basic unit
② Basic unit with secondary silencer TS
* Control component already discontinued


Volume flow rate ranges and minimum differential pressure values
Control component of static measurement principle
Attachments: BUSN, BUSNF, BUSS, XD0, XD4, TUN, TUNF, TUS, TUSD, ELAB (BP3 *, BPG *, BPB *, BB3 *, BBB *)

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
12521733416
1256222326328
12510337272896
1251455221411765
160351233416
16010437627348
16017562974946
1602458821451845
200551954516
20016659832458
2002781001901256
20039014041772455
250853063516
25026193927418
2504371572761156
25061222051492265
3151425084515
315433155832428
3157242607891166
315101536571752275
4002318303415
400707254627338
4001184426275926
400166059781471805

① Basic unit
② Basic unit with secondary silencer TS
* Control component already discontinued


Quick sizing table sound pressure level
In the quick sizing are generally accepted attenuation and insulation values have been taken into account. If the sound pressure level exceeds the required level, a larger air terminal unit and/or a silencer is required. Further information on the acoustic data can be found in the basic information and nomenclature.

Quick sizing table for air-regenerated noise LPA
including sound attenuator variants
(entire volume flow rate range of the type)


NSqv [l/s]qv [m³/h]150 Pa500 Pa
1251450< 15< 1516< 15
1256824424162920
12512143728203324
125175631n.V.n.V.3427
1602483< 15< 1518< 15
16011441129183323
16020573831223728
1602961066n.V.n.V.3830
20037133< 15< 1519< 15
20018265519< 1528< 15
200327117618n.V.2819
2004711698n.V.n.V.2825
25058208< 15< 1520< 15
250285102719< 1527< 15
250513184719n.V.2819
2507402666n.V.n.V.2825
31596344< 15< 1517< 15
315473170324< 153017
315851306226n.V.3322
31512284421n.V.n.V.3526
400157563< 15< 1520< 15
400774278516< 152715
40013915006< 15202922
40020077228n.V.n.V.2928

Air-regenerated noise LPA [dB(A)] with static differential pressure Δpst from 150 or 500 Pa
① Basic unit
② Basic unit with secondary silencer TS
Rqd.: Specified static differential pressure Δpst is smaller than the required minimum differential pressure Δpst min.


Quick sizing table case-radiated noise LPA
including acoustic cladding variants
(entire volume flow rate range of the type)

NSqv [l/s]qv [m³/h]150 Pa500 Pa
125145015< 152116
1256824424183126
12512143727203529
125175631n.V.n.V.3631
1602483< 15< 1518< 15
16011441122173125
16020573825203529
1602961066n.V.n.V.3631
20037133< 15< 1519< 15
20018265523183126
200327117625203531
2004711698n.V.n.V.3733
25058208< 15< 1515< 15
250285102720173127
250513184723203632
2507402666n.V.n.V.3935
31596344< 15< 152116
315473170327223631
315851306229254036
31512284421n.V.n.V.4338
40015756321153024
400774278531254135
4001391500632264438
40020077228n.V.n.V.4539

Case-radiated noise LPA [dB(A)] with static differential pressure Δpst from 150 or 500 Pa
① Basic unit
② Basic unit with acoustic cladding
Rqd.: Specified static differential pressure Δpst is smaller than the required minimum differential pressure Δpst min.


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.

Application

Rectangular VAV terminal units for variable and constant air volume systems, suitable for extract air, available in 6 nominal sizes. High volume flow rate control accuracy. Ready-to-commission unit which consists of the mechanical parts and the electronic control components Each unit contains an averaging effective pressure sensor for volume flow rate measurement, a damper blade, and an integral sound attenuator. Factory-assembled control components complete with wiring and tubing. Effective pressure sensor with 3 mm measuring holes, hence resistant to contamination. Baffle plate is fitted after the damper blade for optimum acoustic and aerodynamic performance. Casing with acoustic and thermal insulation. Position of the damper blade indicated externally at shaft extension. Damper blade is supplied open so that the air flow will be ensured, even without the control function, except variants with defined safe position NC (normally closed). Meets the hygiene requirements of EN 16798, Part 3, of VDI 6022, Sheet 1, and of DIN 1946, Part 4.



Special features

  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Hygiene tested and certified
  • Factory set-up or programming and aerodynamic function testing
  • Setting and subsequent parameterisation on the control component possible, separate setting device may be required



Materials and surfaces

  • Casing and damper blade made of galvanised sheet steel
  • Damper blade seal made of TPE plastic
  • Lining is mineral wool
  • Effective pressure sensor made of aluminium
  • Plastic plain bearings

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
  • Faced with glass fibre fabric as protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Connection type

Fan side spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180. Room end suitable for the connection of ducts.



Technical data

  • Nominal sizes: 125 to 400 mm
  • Volume flow rate range:  14 – 1602 l/s or 50 – 5768 m³/h
  • Minimum differential pressure: Up to 258 Pa
  • Maximum differential pressure: 1000 Pa
  • Closed blade air leakage to EN 1751, Class 4
  • Casing air leakage according to EN 1751, Class C (nominal sizes 125 - 250, Class B)

Equivalence criteria

  • Declaration of hygiene conformity in accordance with VDI 6022, Sheet 1 (01/2018), ÖNORM H 6020 (02/2007) and ÖNORM H 6021 (09/2003)
  • Setting the volume flow rates without adjustment device via Vmin- and Vmax- potentiometer
  • Electrical connections with screw terminals, no additional terminal boxes required
  • Aerodynamic functional testing of each volume flow controller on test rigs at the factory, before a label is affixed to the controller
  • Acoustic data measured to ÖNORM EN ISO 5135:1999


Specification text 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 without adjustment device
  • The actual value signal relates to the nominal volume flow rate, thereby simplifying commissioning and subsequent adjustment
  • Volume flow rate control range: Approx. 10 – 100 % of the nominal volume flow rate
  • Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
  • 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.

Sizing data

  • qᵥ _______________________ [m³/h]
  • Δpst _______________________ [Pa]

Air-regenerated noise

  • LPA _______________________

    [dB(A)]

Case-radiated noise

  • LPA _______________________

    [dB(A)]



Order code for volume flow control (with Easy attachment)
TVAD / 160 / D1 / Easy
|||||
12345

1 Type

TVA VAV terminal unit, extract air 

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

3 Nominal size [mm]125160200250315400 

4 AccessoriesNo entry required: NoneD1 Double lip seal (one side) 

5 Attachments (control components)Easy Volume flow controller, dynamic, analogue interface, setting qvmin and qvmax with potentiometers

Order example: TVA-D/400/Easy
Acoustic claddingYes
Nominal size400 mm
Attachments (control units)Easy controller, dynamic, analogue interface,
Adjustment qvmin and qvmax with potentiometers

 


Order code for volume flow control (with VARYCONTROL attachment)

TVAD / 160 / D1 / XD4 / V / 0 / 200 – 900 [m³/h] / NO
|||||||||
1234578910

1 Type

TVA VAV terminal unit, extract air 

2 Acoustic cladding
No entry required: None

D With acoustic cladding 

3 Nominal size [mm]

125

160

200

250

315

400

4 Accessories

No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components)for example

BC0 Compact controller

XD4 Universal controller (VARYCONTROL) 

7 Operating mode

F Constant value (a setpoint value)

V Variable (setpoint value range) 

8 Signal voltage range

For the actual and setpoint value signals

0 0 – 10 V DC2 2 – 10 V DC 


9 Operating values for factory setting

Volume flow rates [m³/h or l/s] 
qᵥconst. (in operating mode F)
qᵥmin – qᵥmax (in operating mode V) 

10 Damper blade positionOnly spring return actuators

NO Power off to OPEN

NC Power off to CLOSE

Order example: TVA-D/160/D1/BC0/V0/200–800 m³/h
Acoustic claddingYes
Nominal size160 mm
AccessoriesDouble lip seal
Attachments (control component)Compact controller
Operating modeVariable
Signal voltage range0 – 10 V DC
Volume flow rateqvmin = 200 m³/h
qvmax = 800 m³/h


Order code for volume flow control (with TROX UNIVERSAL attachment)

TVAD / 160 / D1 / TUNF / RE / M / 0 / UMZ / / NC
|||||||||||
1234567891011

1 Type

TVA VAV terminal unit, extract air 

2 Acoustic cladding
No entry required: None

D With acoustic cladding 

3 Nominal size [mm]

125

160

200

250
315
400 

4 Accessories

No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components)

TROX UNIVERSAL controller with

TUN Actuator (150 s)

TUNF Spring return actuator (150 s)

TUS Fast-running actuator (3 s)

TUSD Fast-running actuator (3 s), with digital communication interface (TROX HPD) 

6 Equipment function

Room control

RE Extract air control (Room Exhaust) 

7 Volume flow rate setting

M Master (RMF function)

S Slave

F Constant flow rate controller

8 Signal voltage range

0 0 – 10 V DC2 2 – 10 V DC 

9 Expansion of attachments

Option 1: Power supply

No entry required: 24 V AC/DC

T EM-TRF for 230 V AC
U EM-TRF-USV for 230 V AC, provides uninterruptible power supply (UPS) 

Option 2: Digital communication interface
No entry required: None

B
EM-BAC-MOD-01 for BACnet MS/TP
M EM-BAC-MOD-01 for Modbus RTU
I EM-IP for BACnet/IP, Modbus/IP and web server
R EM-IP with real time clock 

Option 3: Automatic zero point correction
No entry required: None
Z EM-AUTOZERO with solenoid valve 

10 Operating values for factory setting

Volume flow rates [m³/h or l/s]Master (RMF function)

qᵥmin: Minimum volume flow rate

qᵥmax: Maximum volume flow rate

qᵥconst_Supply air: Constant supply air

qᵥconst_Extract air: Constant extract air

qᵥDiff: Supply air/extract air difference Constant value

qᵥconst: Constant volume flow rate Slave

No entry required 

11 Damper blade position

Only spring return actuators

NO Power off to OPEN

NC Power off to CLOSE 

Useful additions Room control panel
BE-LCD 40-character display

Order example: TVA/250/TUSD/RE/S/0/Z
Nominal size250 mm
Attachments (control component)Controller TROX UNIVERSAL, fast-running actuator (3 s) with digital communication interface (TROX HPD)
Equipment functionExtract air control
Volume flow rate settingSlave
Signal voltage characteristic0 – 10 V DC
Extension of attachmentsWith expansion module EM-AUTOZERO,
solenoid valve for automatic zero point correction

  


Order code for differential pressure control (with VARYCONTROL attachment)


TVAD / 160 / D1 / XF4 / PRE / V / 0 / 30 – 60 [Pa] / NO
||||||||||
12345678910

1 Type
TVA VAV terminal unit, extract air 


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

3 Nominal size [mm]

125
160

200

250

315

400 

4 Accessories

No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components)

for example

XF0 Compact controller for duct pressure

XF4 Universal controller for duct pressure (VARYCONTROL) 

6 Equipment function/installation location

PDE Duct pressure control, extract air

PRE Room pressure control, extract air 

7 Operating mode

F Constant value (a setpoint value)

V Variable (setpoint value range) 

8 Signal voltage range

For the actual and setpoint value signals

0 0 – 10 V DC2 2 – 10 V DC

9 Operating values for factory setting

For duct pressure control, differential pressure [Pa] always as an absolute value without sign.

∆pconst (in operating mode F)

∆pmin – ∆pmax (in operating mode V) 

10 Damper blade position

Only spring return actuators

NO Power off to OPEN
NC Power off to CLOSE   


Order example: TVA/250/D1/XF0/PDE/V2/100 – 400 Pa
Nominal size250
AccessoriesDouble lip seal on one side (circular spigot)
Attachments (control components)Compact controller duct pressure control
Equipment function/installation locationDuct pressure control, extract air
Operating modeVariable
Signal voltage characteristics2 – 10 V DC
Operating values∆pmin = 100 Pa
∆pmax = 400 Pa
 


Order code for differential pressure control (with TROX UNIVERSAL attachment)


TVAD / 160 / D1 / TUNF / PRE / MFP0 / UMZ / / NC
|||||||||||
1234567891011

1 Type

TVA VAV terminal unit, extract air 

2 Acoustic cladding 
No entry required: None

D With acoustic cladding 

3 Nominal size [mm]

125, 160, 200, 250, 315, 400 

4 Accessories 
No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components) 
TROX UNIVERSAL controller with
TUN Actuator (150 s)
TUNF Spring return actuator (150 s)

TUS Fast-running actuator (3 s)

TUSD Fast-running actuator (3 s), with digital communication interface (TROX HPD) 

6 Equipment function 
Differential pressure control

PRE Room pressure control, extract air

PDE Duct pressure control, extract air 

7 Differential pressure setting 

MFP Master, constant pressure control

MVP Master, variable differential pressure control

SFP Slave, constant pressure control

SVP Slave, variable differential pressure control 

8 Signal voltage range 

0 0 – 10 V DC

2 2 – 10 V DC 

9 Expansion of attachments 
Option 1: Power supply 
No entry required: 24 V AC/DC

T EM-TRF for 230 V AC

U EM-TRF-USV for 230 V AC, provides uninterruptible power supply (UPS)

Option 2: Digital communication interface 
No entry required: None

B EM-BAC-MOD-01 for BACnet MS/TP

M EM-BAC-MOD-01 for Modbus RTU
I EM-IP for BACnet/IP, Modbus/IP and web server

R EM-IP with real time clock 

Option 3: Volume flow rate measurement 
No entry required: None
V  EM-V Volume flow rate measurement for differential pressure control 

Option 4: Automatic zero point correction 
No entry required: None

Z EM-AUTOZERO solenoid valve (only with V) 

10 Operating values for factory setting 
Pressure [Pa], volume flow rates [m³/h or l/s]Slave SVP

Δpmin: Minimum differential pressure

Δpmax: Maximum differential pressureSlave SFP

Δpconst: Constant differential pressure 

Master MFP and MVP – same as slave, but additionally:

qᵥmin: Minimum volume flow rate

qᵥmax: Maximum volume flow rate
qᵥconst_Supply air: Constant supply air

qᵥconst_Extract air: Constant extract air

qᵥDiff: Supply air/extract air difference

11 Damper blade position 
Only spring return actuators 

NO Power off to OPEN

NC Power off to CLOSE 


Useful additions 

Room control panel

BE-LCD 40-character display 
Order differential pressure transducer for room or duct pressure control separately e.g.

PT-699 for room pressure control

PT-699-DUCT for duct pressure control, including tube and pressure tap


Order example: TVA/125/TUSD/PRE/SFP/0/V/20 Pa
Nominal size125 mm
Attachments (control components)Controller TROX UNIVERSAL; fast-running actuator (3 s) with digital communication interface (TROX HPD)
Equipment functionRoom pressure control, extract air
Effective pressure settingSlave, constant pressure control
Signal voltage characteristics0 – 10 V DC
Extension of attachmentswith expansion module EM-V,
Volume flow rate measurement for differential pressure control
Operating valuesΔpconst = 20 Pa
 


Order code for room control (with EASYLAB attachment)


TVAD/160/D1/ELAB/S/RE/UMZ/LAB/
| | | | | | | | | |
1 2 3 4 5 6 7 9 10 11

1 Type

TVA VAV terminal unit, extract air

2 Acoustic cladding

No entry required: None

D With acoustic cladding 

3 Nominal size [mm]
125

160

200

250

315

400 

4 Accessories

No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components)

ELAB EASYLAB controller TCU3 

6 Actuators

S Fast-running actuator (3 s)

SD Fast-running actuator (3 s), with digital communication interface (TROX HPD) 

7 Equipment function

Room control

RE Extract air control (Room Supply)

PC Differential pressure control (Pressure Control) 

9 Expansion modules

Option 1: Power supply

No entry required: 24 V AC/DC

T EM-TRF for 230 V AC

U EM-TRF-USV for 230 V AC, provides uninterruptible power supply (UPS) 

Option 2: Digital communication interface

No entry required: None
B EM-BAC-MOD-01 for BACnet MS/TP
M EM-BAC-MOD-01 for Modbus RTU

I EM-IP for BACnet/IP, Modbus/IP and web server
R EM-IP with real time clock 

Option 3: Automatic zero point correction
No entry required: None
Z EM-AUTOZERO Solenoid valve for automatic zero point correction 

10 Additional functions
Without room management function
LAB Extract air led system (laboratories)
CLR Supply air led system (clean rooms) With room management function

LAB-RMF Extract air led system
CLR-RMF Supply air led system 

11 Operating values for factory setting
Volume flow rates [m3/h, l/s], pressure [Pa](only required when room management function is active) 


Total extract air/supply air of room
qv1: Standard mode
qv2: Reduced operation

qv3: Increased operation

qv4: Constant supply air

qv5: Constant extract air

qv6: Supply air/extract air difference

Δpset: Setpoint pressure (only with differential pressure control) 


Useful additions

Room control panel (only for devices with RMF)

BE-LCD 40-character display 

Differential pressure transducer for room pressure control equipment function must be ordered separately, e.g.

PT-699 Measuring range ±50 Pa or ±100 Pa

PT-GB604 Measuring range ±100 Pa

Order example: TVA/200/ELAB/S/RE/TZ/CLR
Acoustic claddingNone
Nominal size200 mm
Attachments (control component)EASYLAB controller TCU3
ActuatorFast-running actuator (3 s)
Equipment functionExtract air control (Room Exhaust)
Expansion modulesWith expansion module EM-TRF
Transformer for 230 V AC supply
With expansion module EM-AUTOZERO
solenoid valve for automatic zero point correction
Additional functionSupply air led system (clean rooms)
Room management function not activated


Order code for single operation (with EASYLAB attachment)


TVAD/160/D1/ELAB/S/ECE0/UMZ/
| | | | | | | | | |
1 2 3 4 5 6 7 8 9 11

1 Type

TVA VAV terminal unit, extract air 

2 Acoustic cladding
No entry required: None

D With acoustic cladding 

3 Nominal size [mm]

125

160

200

250

315
400 

4 Accessories
No entry required: None

D1 Double lip seal (one side) 

5 Attachments (control components)

ELAB EASYLAB controller TCU3 

6 Actuators

S Fast-running actuator (3 s)

SD Fast-running actuator (3 s), with digital interface (TROX HPD) 

7 Equipment function

Single operation

EC Extract air controller 

8 External volume flow rate setting

E0 Voltage signal 0 – 10 V DC

E2 Voltage signal 2 – 10 V DC

2P Switch contacts (provided by others) for 2 switching steps

3P Switch contacts (provided by others) for 3 switching steps

F Volume flow rate constant value, without signalling

9 Expansion modules

Option 1: Power supply

No entry required: 24 V AC/DC

T EM-TRF for 230 V AC

U EM-TRF-USV for 230 V AC, provides uninterruptible power supply (UPS) 


Option 2: Digital communication interface

No entry required: None

B EM-BAC-MOD-01 for BACnet MS/TP

M EM-BAC-MOD-01 for Modbus RTU

I EM-IP for BACnet/IP, Modbus/IP and web server

R EM-IP with real time clock 


Option 3: Automatic zero point correction

No entry required: None

Z EM-AUTOZERO Solenoid valve for automatic zero point correction 

11 Operating values for factory setting

Volume flow rates [m³/h or l/s]

Depending on external volume flow rate setting

E0, E2: qvmin/qvmax

2P: qv1/qv2

3P: qv1/qv2/qv3F: qv1

Order example: TVA-D/125/ELAB/S/EC/F/350 m³/h
Acoustic claddingYes
Nominal size125 mm
Attachments (control component)EASYLAB controller TCU3
ActuatorFast-running actuator (3 s)
Equipment functionExtract air controller
External volume flow rate settingVolume flow rate constant value, without signalling
Operating valueqv1 = 350 m³/h

 

Variants, Attachments, Dimensions and weight, Product details

  • VARIANTS
  • DIMENSIONS AND WEIGHT
  • PRODUCT DETAILS
  • FURTHER PRODUCTINFORMATIONS
VAV terminal unit without acoustic cladding (TVA)


Dimensions/Weights for TVA

NSBHL∅DAB₁B₃H₁H₃kg
125198152122012418523230018623621
160308152120515917034241018623625
200458210146019913849256024428133
25059820115402499763270023531155
315798252168531424583290028636173
40089835419953991769321000388446118


Dimensions/Weights for TVA-D

NSBHL∅DAB₁B₃H₁H₃kg
125198152122012414523238018631641
160308152120515913034249018631650
20045821014601999849264024436163
25059820115402495763278023539195
3157982521685314205832980286441133
40089835419953991369321080388526193

Space required for commissioning and maintenance 
Sufficient space must be kept clear near any attachments to allow for commissioning and maintenance. It may be necessary to provide sufficiently sized inspection access openings. 


Installation and commissioning

  • Any installation orientation (except units with static effective pressure transducer)
  • Return edges of the casing with drilled holes suitable for M10 threaded rods
  • TVA-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 volume flow rate accuracy Δqᵥ applies to straight upstream section. Bends, junctions or a narrowing or widening of the duct cause turbulence that may affect measurement. Duct connections, e.g. branches off the main duct, must comply with EN 1505.



Control components VARYCONTROL


AttachmentControlled variableInterfaceEffective pressure transducerActuatorManufacturer
Easy controller, dynamic
Easy

qv

0 – 10 Vintegratedslow running

integrated
Compact controller, dynamic
BC0

qv

0 – 10 V or 2 – 10 V or MP-Bus interfaceintegratedslow running

integrated

BL0 **

qv

LonWorks FTT 10-interface

integratedslow running

integrated
BM0

qv

Modbus RTU/BACnet MS/TP

integratedslow running

integrated
BM0-J6

qv

Modbus RTU/BACnet MS/TP with RJ12 socket (for X-AIRCONTROL)

integratedslow running

integrated
LN0

qv

0 – 10 V or 2 – 10 Vintegratedslow running

integrated
LK0

qv

KNX interface

integratedslow running

integrated
Measurement principleDynamic transmitter type0 – 10 V or 2 – 10 Vintegratedslow running

integrated
Compact controller, static
XD0

qv

0 – 10 V or 2 – 10 Vintegratedslow running

integrated
XF0Δp0 – 10 V or 2 – 10 VIntegrated, control range adjustable 25 - 550 Paslow running

integrated
Universal controller, dynamic

B13 *

qv

0 – 10 V or 2 – 10 Vintegratedslow running

separate

B1B *

qv

0 – 10 V or 2 – 10 VintegratedSpring return actuator

separate
BUDN

qv

0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegratedslow running

separate
BUDNF

qv

0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegratedSpring return actuator

separate
XB4

qv

0 – 10 V or 2 – 10 VintegratedSpring return actuator

separate
Universal controller, static

BP3 *

qv

0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual componentslow running

separate

BPB *

qv

0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual componentSpring return actuator

separate

BPG *

qv

0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual componentFast-running

separate

BB3 *

qv

2 – 10 VIndividual componentslow running

separate

BBB *

qv

2 – 10 VIndividual componentSpring return actuator

separate

BR3 *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

100 Pa
slow running

separate

BRB *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

100 Pa
Spring return actuator

separate

BRG *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

100 Pa
Fast-running

separate

BS3 *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

600 Pa
slow running

separate

BSB *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

600 Pa
Spring return actuator

separate

BSG *

Δp0 – 10 V or 2 – 10 V or MP-Bus interfaceIndividual component

600 Pa
Fast-running

separate

BG3 *

Δp2 – 10 VIndividual component

100 Pa
slow running

separate

BGB *

Δp2 – 10 VIndividual component

100 Pa
Spring return actuator

separate

BH3 *

Δp2 – 10 VIndividual component

600 Pa
slow running

separate

BHB *

Δp2 – 10 VIndividual component

600 Pa
Spring return actuator

separate
BUPNΔp0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegrated

Control range adjustable 25 – 450 Pa
slow running

separate
BURNFΔp0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegrated

Control range adjustable -50 ... -10 Pa or 10 ... 50 Pa
Spring return actuator

separate
BURNΔp0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegrated

Control range adjustable -50 ... -10 Pa or 10 ... 50 Pa
slow running

separate
BUPNFΔp0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegrated

Control range adjustable 25 – 450 Pa
Spring return actuator

separate
BUSN

qv

0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegratedslow running

separate
BUSNF

qv

0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegratedSpring return actuator

separate
BUSS

qv

0 - 10 V or 2 - 10 V or MP-Bus or Modbus RTU or BACnet MS/TPTPintegratedFast-running

separate
XD4

qv

0 – 10 V or 2 – 10 VintegratedSpring return actuator

separate
XF4Δp0 – 10 V or 2 – 10 VIntegrated, control range adjustable 25 - 550 PaSpring return actuator

separate

* Control component already discontinued

** Control component to be discontinued in the future - please do not plan for new projects

qv Volume flow rate
Δp Differential pressure
① TROX, ② TROX/Belimo, ③ TROX/Gruner, ⑤ Siemens



Control components TROX UNIVERSAL


AttachmentControlled variableInterfaceEffective pressure transducerActuatorManufacturer
Universal controller, static
TUNqv, Δp

TROX Plug&Play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: LonWorks, Modbus, BACnet, Webserver

qv = integrated

Δp = separate
slow running

separate
TUNFqv, Δp

TROX Plug&Play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: LonWorks, Modbus, BACnet, Webserver

qv = integrated

Δp = separate
Spring return actuator

separate
TUSqv, Δp

TROX Plug&Play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: LonWorks, Modbus, BACnet, Webserver

qv = integrated

Δp = separate
Fast-running

separate
TUSDqv, Δp

TROX Plug&Play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: LonWorks, Modbus, BACnet, Webserver

qv = integrated

Δp = separate

Fast-running with digital communication interface (TROX HPD), separate


qv Volume flow rate
Δp Differential pressure
① TROX



Control components LABCONTROL EASYLAB


AttachmentControlled variableInterfaceEffective pressure transducerActuatorManufacturer
EASYLAB
ELAB

qv, Δp *

TROX Plug&Play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: LonWorks, Modbus, BACnet, Webserver

qv = integrated

Δp = separate

fast-running, seperate



or



fast-running with digital communication interface (TROX HPD), separate

① TROX


 


* Controlled variable depending on the VAV terminal unit type

  • TVR, TVRK: Fume cupboard, room supply air, room extract air, room pressure, single controller
  • TVLK: Fume cupboard, single controller
  • TVJ, TVT: Room supply air, room extract air, room pressure, single controller
  • TVZ, TZ-Silenzio: Room supply air, room pressure, single controller
  • TVA, TA-Silenzio: Room extract air, room pressure, single controller

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