TZ-Silenzio_img_04psd.png
VAV terminal unit Type TZ-Silenzio

Easyregler-Compactregler_img_01_2020_01_DE__6_psd.psd.link
Easy controller, Compact controller

Easy controller, Compact controller

TU-ELAB-Regler_img_01_2020_01_DEpsd.psd.link

TROX UNIVERSAL controller,

TROX LABCONTROL controller

TZ-Silenzio_img_06psd.png
Rectangular connections on both ends

Rectangular connections on both ends

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For all upstream conditions

For all upstream conditions

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Tested to VDI 6022

Tested to VDI 6022

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Easyregler-Compactregler_img_01_2020_01_DE__6_psd.psd.link
TU-ELAB-Regler_img_01_2020_01_DEpsd.psd.link
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TZ-Silenzio_gc_07ai.ai.link
00073144_0ai.ai.link

TZ-SILENZIO 

For supply air systems with demanding acoustic requirements and low airflow velocities

 


Rectangular VAV terminal units for the supply air control in buildings with variable air volume systems, demanding acoustic requirements and low airflow velocities

  • Highly effective integral attenuator
  • Optimised for airflow velocities of 0.7 – approx. 7 m/s
  • High control accuracy, even in case of unfavourable upstream conditions
  • Compact construction with rectangular connections on both ends
  • Electronic control components for different applications (Easy, Compact, Universal, and LABCONTROL)
  • Closed blade air leakage to EN 1751, Class 4
  • Casing leakage to EN 1751, 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
  • Hot water heat exchanger of Type WT for reheating the airflow

 


 


 

General Information

Application
  • Rectangular VAV terminal units for use in ventilation and air conditioning systems
  • For controlling, restricting or shutting off airflows in supply air systems with low velocities and demanding acoustic requirements
  • Integral attenuator
  • Closed-loop volume flow control using an external power supply
  • For variable or constant volume flow systems
  • Shut-off by means of switching (by others)
  • Can also be used for differential pressure control with suitable control components


Special features
  • Hygiene tested and certified
  • Direct connection to ductwork
  • Factory set-up or programming and aerodynamic function testing
  • Parameters can also later be set on the control component; additional adjustment device may be necessary


Nominal sizes

  • 125, 160, 200, 250, 315


Variants
  • TZ-Silenzio: supply air unit
  • TZ-Silenzio-D: supply 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 with potentiometers
  • Compact controller: compact unit consisting of controller with potentiometers, effective pressure transducer and actuator
  • Universal controller: controller, effective pressure transducer and actuators for special applications
  • LABCONTROL: Control components for air management systems



Useful additions
  • Secondary silencer Type TS
  • Heat exchanger Type WT


Construction features
  • Rectangular casing
  • Replaceable seals
  • Flanges on both ends for the connection to ductwork
  • Position of the damper blade indicated externally at shaft extension
  • Thermal and acoustic insulation (lining)


Materials and surfaces

  • Casing made of galvanised sheet steel
  • Damper blade and effective pressure sensor made of aluminium
  • Lining is mineral wool
  • Plastic plain bearings
  • Shaft and linkage: 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 a protection against erosion from 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
  • For other applicable standards and guidelines refer to the hygiene certificate

Casing leakage
  • EN 1751, Class C

Closed blade air leakage
  • 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, Technical data, Quick sizing, Specification text, Order codes, Related products

  • Function
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODES
  • RELATED PRODUCTS
Schematic illustration of the TZ-Silenzio TZ-Silenzio_gc_04ai.png

① Integral sound attenuator

② Effective pressure sensor

③ Control components, e.g. an Easy controller

④ Damper blade with seal


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, with a Compact controller, or with individual components (Universal).

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.

 


Nominal sizes125 – 315
Volume flow rate range

27 – 1093 l/s or 95 – 3937 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 106 Pa (without secondary 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".

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. It must be ensured that for all operating conditions and for all terminal units a sufficient pressure differential is applied to each controller (Δpstat,min). 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 for dynamic pressure measurements – Easy (potentiometers)
Attachment: Easy

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
1252795238
1257928313236
12513147235635
125183660681234
16042150238
16012444711216
16020774530585
1602891042581134
20060213239
20017663412266
200293105632715
2004101477621385
25075269239
25022380113236
250371133434625
2505181866661215
315126452239
315375134913206
315624224536565
3158723142701085

① Basic unit
② Basic unit with secondary silencer TS

Volume flow rate ranges and minimum differential pressure values
Control component for dynamic pressure measurements – qv with expansion module
Attachments: BC0, BL0 **, BM0, BM0-J6

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
1252795238
1259433918335
12516258453975
1252308281061944
16042150238
16014953516305
16025692045885
1603621305901774
20060213239
20021175917376
2003631305491085
2005141851982165
25075269239
25026695918326
250458164851955
25064923381031905
315126452239
315448161419296
315771277555855
315109339371091705

① Basic unit
② Basic unit with secondary silencer TS

** Control component to be discontinued - do not include in new projects


Volume flow rate ranges and minimum differential pressure values
Control component for dynamic pressure measurements - qv standard
Attachments: BUDN, BUDNF, LN0, LK0, LB0, XB0, XB4, (B13 *, B1B *)

NSqv [l/s]qv [m³/h]Δpstmin [Pa]Δqv [±%]
1252795238
1258129114246
12513648837685
125190684731334
16042150238
16012846012226
16021477032625
1603001080621214
20060213239
20018165213276
200303109234765
2004251531671485
25075269239
25022982413246
250383137936665
2505371934711305
315126452239
315385138714226
315645232238595
3159043257751165

① Basic unit
② Basic unit with secondary silencer TS

* Control component has been discontinued


Volume flow rate ranges and minimum differential pressure values
Control component for static pressure measurements
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 [±%]
1252795238
1258129114246
12513648837685
125190684731334
16042150238
16012846012226
16021477032625
1603001080621214
20060213239
20018165213276
200303109234765
2004251531671485
25075269239
25022982413246
250383137936665
2505371934711305
315126452239
315385138714226
315645232238595
3159043257751165

① Basic unit
② Basic unit with secondary silencer TS

* Control component has been discontinued


Quick sizing table for sound pressure level
The quick sizing tables are based on generally accepted attenuation and insulation 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
(total flow rate range of type)

NSqv [l/s]qv [m³/h]150 Pa500 Pa
125279516< 1522< 15
1259433932213827
12516258438274333
12523082841n.V.4636
1604215017< 1523< 15
16014953532223827
16025692037264231
160362130540n.V.4533
20060213< 15< 1519< 15
20021175927153321
200363130531213725
200514185134n.V.4029
25075269< 15< 1519< 15
25026695926153221
250458164831193625
250649233834n.V.3928
315126452< 15< 1520< 15
315448161425< 153118
315771277529203523
3151093393732n.V.3827

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

① Basic unit

② Basic unit with secondary silencer TS

n.a.: The specified static differential pressure Δpst is lower than the minimum differential pressure Δpst min.


Quick sizing table for case-radiated noise LPA
Controller including acoustic cladding
(total flow rate range of type)

NSqv [l/s]qv [m³/h]150 Pa500 Pa
1252795< 15< 1516< 15
1259433923223128
12516258429303736
12523082833344140
16042150< 15< 152015
16014953527263432
16025692033334039
160362130537384444
20060213< 15< 1520< 15
20021175927253431
200363130533324038
200514185137374443
25075269< 15< 1521< 15
25026695928253531
250458164834334139
250649233838374543
31512645217< 152518
315448161432303935
315771277538374543
3151093393742424947

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

① Basic unit

② Basic unit with acoustic cladding

n.a.: The specified static differential pressure Δpst is lower than the 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.


Specification text

Rectangular VAV terminal units for variable and constant air volume systems, for demanding acoustic requirements, suitable for supply air, available in 5 nominal sizes. High control accuracy even in case of unfavourable upstream conditions. 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. Casing with acoustic and thermal insulation. Position of the damper blade indicated externally at shaft extension. The damper blade is factory set to open position, which allows a ventilation airflow even without control; this does not apply to 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
  • Hygiene tested and certified
  • Direct connection to ductwork
  • Factory set-up or programming and aerodynamic function testing
  • Parameters can also later be set on the control component; additional adjustment device may be necessary


Materials and surfaces
  • Casing made of galvanised sheet steel
  • Damper blade and differential pressure sensor made of aluminium
  • Lining is mineral wool
  • 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 from airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Connection type

  • Flanges on both sides, suitable for duct connection


Technical data
  • Nominal sizes: 125 – 315
  • Volume flow rate range: 27 – 872 l/s or 95 – 3142 m³/h
  • Minimum differential pressure: up to 106 Pa (without secondary silencer)
  • Maximum differential pressure: 1000 Pa
  • Closed blade air leakage to EN 1751, Class 4
  • Casing leakage to EN 1751, Class C


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 without adjustment device
  • 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. 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)]



Equivalence criteria

  • Declaration of hygiene conformity in accordance with VDI 6022, part 1 (01/2018), ÖNORM H 6020 (02/2007) and ÖNORM H 6021 (09/2003)
  • Setting of the volume flow rates without an adjustment device using Vmin- and Vmax potentiometers
  • Electrical connections with screw terminals, no junction box required
  • Aerodynamic functional testing of each volume flow controller on a test rig before shipping (test result on a sticker on the controller)
  • No upstream section required
  • Acoustic data to ÖNORM EN ISO 5135:1999
  • Maximum control deviation of 5 % at qvmax, without upstream section


Order code for volume flow control (with Easy attachment)
TZ-SilenzioD / 200 / Easy
||||
1234
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125, 160, 200, 250, 315
 
4 Attachments (control component)
Easy Volume flow controller, dynamic, analogue interface, setting of qvmin and qvmax with potentiometers


Order example: TZ–Silenzio/125/Easy

Acoustic cladding None
Nominal size 125
Attachments (control component) Easy volume flow controller, dynamic, setting of qᵥmin and qᵥmax with potentiometers


Order code for volume flow control (with VARYCONTROL attachment)

TZ-SilenzioD / 200 / XB4 / V0 / 400 -– 1200 [m³/h] / NO
||||||||
12346789
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125, 160, 200, 250, 315
 
4 Attachments (control component)
For example
BC0 Compact controller
XB4 Universal controller (VARYCONTROL)
 
6 Operating mode
F Constant value (one setpoint value)
V Variable (setpoint value range)
 
7 Signal voltage range

For the actual and setpoint value signals
0 0 – 10 V DC
2 2 – 10 V DC
 
8 Operating values for factory setting
Volume flow rates [m³/h or l/s] 
qᵥconst (with operating mode F)
qᵥmin – qᵥmax (with operating mode V)
 
9 Damper blade position
Only with spring return actuators
NO Power off to OPEN
NC Power off to CLOSED

Order example: TZ–Silenzio/200/BC0/V0/300–1200 m³/h

Acoustic claddingNone
Nominal size200
Attachments (control component)Compact controller, dynamic transducer, analogue or MP bus interface
Operating modeVariable operation qᵥmin – qᵥmax
Signal voltage range0 – 10 V DC
Operating valuesqᵥmin = 300 m³/h
qᵥmax = 1200 m³/h


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

TZ-SilenzioD / 200 / TUNF / RS / M / 0 / UMZ / / NC
||||||||||
12345678910
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125, 160, 200, 250, 315
 
4 Attachments (control component)
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)
 
5 Equipment function

Room control
RE Extract air control (Room Exhaust)
 
6 Volume flow rate setting
M Master (RMF)
S Slave
F Constant volume flow controller
 
7 Signal voltage range
0 0 – 10 V DC
2 2 – 10 V DC
 
8 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: 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: None
Z EM-AUTOZERO with solenoid valve
 
9 Operating values for factory setting
Volume flow rate [m³/h] or [l/s]
Master (RMF)
qᵥmin: Minimum volume flow rate
qᵥmax: Maximum volume flow rate

qᵥconst_sup: Constant supply air

qᵥconst_ext: Constant extract air
qᵥDiff: Supply air/extract air difference
 
Constant value
qᵥconst: Constant volume flow rate
 
Slave
No entry required
 
10 Damper blade position
Only with 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: TZ–Silenzio/200/TUN/RS/M/2/UIZ/600/1250/0/0/-100

Acoustic claddingNone
Nominal size200
Attachments (control component)TROX UNIVERSAL controller, actuator 150 s
Equipment functionSupply air control
Volume flow rate settingMaster (RMF)
Signal voltage characteristic2 – 10 V DC
Expansion moduleswith expansion module EM-TRF-USV
(transformer for 230 V AC and uninterruptible power supply),
with expansion module EM-IP
(communication interface BACnet IP, Modbus IP, web server),
with expansion module EM-AUTOZERO
(solenoid valve for automatic zero point correction)
 
Operating valuesqvmin = 600 m³/h
qvmax = 1250 m³/h
qvconst_sup = 0 m³/h
qvconst_ext = 0 m³/h
qvDiff = -100 m³/h



Order code for differential pressure control (with VARYCONTROL attachment)
TZ-SilenzioD / 200 / XF4 / PRS / V0 / 30 – 60 [Pa] / NO
|||||||||
123456789
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125, 160, 200, 250, 315
 
4 Attachments (control component)
For example
XF0 Compact controller for duct pressure
XF4 Universal controller for duct pressure (VARYCONTROL)
 
5 Equipment function/Installation location
PDS Duct pressure control, supply air
PRS Room pressure control, supply air
 
6 Operating mode
F Constant value (one setpoint value)
V Variable (setpoint value range)
 
7 Signal voltage range
For the actual and setpoint value signals
0 0 – 10 V DC
2 2 – 10 V DC
 
8 Operating values for factory setting
With duct pressure control, the differential pressure [Pa] is always an absolute value
Δp,const (with operating mode F)
Δp,min - Δp,max (with operating mode V)
 
 
9 Damper blade position
Only with spring return actuators
NO Power off to OPEN
NC Power off to CLOSED


Order example: TZ-Silenzio-D/315/XF0/PDS/V2/250 – 375 Pa

Acoustic claddingWith
Nominal size315
Attachments (control component)Compact controller for duct pressure
Equipment functionDuct pressure control, supply air
Operating modeVariable pressure control Pmin - Pmax
Signal voltage characteristic2 – 10 V DC
Operating valuesPmin = 250 Pa
Pmax = 375 Pa


 

Order code for differential pressure control (with TROX UNIVERSAL attachment)
TZ-SilenzioD / 200 / TUNF / PRS / MFP / 0 / UMZ / / NC
||||||||||
12345678910
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125, 160, 200, 250, 315
 
4 Attachments (control component)
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)
 
5 Equipment function
Differential pressure control
PRS Room pressure control, supply air
PDS Duct pressure control, supply air
 
6 Differential pressure setting
MFP Master, constant pressure control
MVP Master, variable pressure control
SFP Slave, constant pressure control
SVP Slave, variable pressure control
 
7 Signal voltage range
0 0 – 10 V DC
2 2 – 10 V DC
 
8 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: 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: None
V EM-V Volume flow rate measurement for differential pressure control
 
Option 4: Automatic zero point correction
No entry: None
Z EM-AUTOZERO solenoid valve (only with V)
 
9 Operating values for factory setting
Volume flow rate [m³/h] or [l/s], pressure [Pa]
 
Slave SVP
Δpmin: Minimum differential pressure
Δpmax: Maximum differential pressure slave 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_sup: Constant supply air
qᵥconst_ext: Constant extract air
qᵥDiff: Supply air/extract air difference
 

10 Damper blade position
Only with 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: TZ-Silenzio/200/TUSD/PRS/MFP/2/BV/-20 Pa/600/1250/0/0/-100

Acoustic claddingNone
Nominal size200
Attachments (control component)TROX UNIVERSAL controller, fast-running actuator (3 s) with digital communication interface
Equipment function/installation locationRoom pressure control, supply air
Differential pressure settingMaster, constant pressure control 
Signal voltage range2 – 10 V DC
Expansion moduleswith expansion module EM-BAC-MOD-01
(communication interface BACnet MS/TP),
with expansion module EM-V
(volume flow rate measurement for differential pressure control)
Operating valuesΔpconst = -20 Pa
qvmin = 600 m³/h
qvmax = 1250 m³/h
qvconst_sup = 0 m³/h
qvconst_ext = 0 m³/h
qvDiff = -100 m³/h



Order code for room control (with EASYLAB attachment)
TZ–SilenzioD/200/ELAB/S/RS/UMZ/LAB/
| | | | | | | | |
1 2 3 4 5 6 8 9 10
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding

No entry: None
D With acoustic cladding
 
3 Nominal size
125
160
200
250
315
 
4 Attachments (control component)
ELAB EASYLAB controller TCU3
 
5 Actuators
S Fast-running actuator (3 s)
SD Fast-running actuator (3 s), with digital communication interface (TROX HPD)
 
6 Equipment function
Room control
RS Supply air control (Room Supply)
PC Differential pressure control (Pressure Control)
 
8 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: 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: None
Z EM-AUTOZERO Solenoid valve for automatic zero point correction
 
9 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
 
10 Operating values for factory setting
(only required when room management function is active)
 
Volume flow rate [m³/h] or [l/s], pressure [Pa]
 
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 units with RMF)
BE-LCD 40-character display
 
The differential pressure transducer required for room pressure control (equipment function) has to be ordered separately, e.g.
PT-699 Measuring range ±50 Pa or ±100 Pa
PT-GB604 Measuring range ±100 Pa



Order example: TZ–Silenzio/200/ELAB/S/RS/LAB

Acoustic claddingNone
Nominal size200
Attachments (control component)EASYLAB controller TCU3
ActuatorFast-running actuator (3 s)
Equipment functionSupply air control (Room Supply)
Additional functionExtract air led system (laboratories)
Operating valuesNot required (room management function is not active)



Order code for single operation (with EASYLAB attachment)
TZ–SilenzioD/200/ELAB/S/SCE0/UMZ/
| | | | | | | | |
1 2 3 4 5 6 7 8 10
1 Type
TZ-Silenzio VAV terminal unit, supply air
 
2 Acoustic cladding
No entry: None
D With acoustic cladding
 
3 Nominal size
125
160
200
250
315
 
4 Attachments (control component)
ELAB EASYLAB controller TCU3
 
5 Actuators
S Fast-running actuator (3 s)
SD Fast-running actuator (3 s), with digital communication interface (TROX HPD)
 
6 Equipment function
Single operation
SC Supply air controller
 
7 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
 
8 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: 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: None
Z EM-AUTOZERO Solenoid valve for automatic zero point correction
 
10 Operating values for factory setting
Volume flow rate [m³/h] or [l/s]
Depending on external volume flow rate setting:
E0, E2: qvmin/qvmax
2P: qᵥ1/qᵥ2
3P: qᵥ1/qᵥ2/qᵥ3
F: qᵥ1



Order example: TZ-Silenzio/160/ELAB/S/SC/3P/400/600/800 m³/h

Acoustic claddingNone
Nominal size160
Attachments (control component)ELAB
ActuatorsFast-running actuator (3 s)
Equipment functionSingle controller for supply air
External volume flow rate settingSwitch contacts (provided by others) for 3 switching steps
Operating valuesqv1 = 400 m³/hqv2 = 600 m³/hqv3 = 800 m³/h

Variants, Dimensions and weight, Product details, Further product details 

  • VARIANTS
  • DIMENSIONS AND WEIGHTS
  • PRODUCT DETAILS
  • FURTHER PRODUCT DETAILS 

VAV terminal unit, variant TZ-Silenzio

Application
  • VAV terminal unit for variable supply air volume flow control


VAV TERMINAL UNIT, VARIANT TZ-SILENZIO - D

Application
  • VAV terminal unit with acoustic cladding for variable supply air volume flow control
  • For rooms where the case-radiated noise of the unit is not sufficiently reduced by a false ceiling
  • The ducts for the room under consideration must have adequate acoustic insulation (to be provided by others) on the fan end
  • Ideally, the ducts on the room side should also be insulated (by others)
  • Acoustic cladding cannot be retrofitted

Standard construction

Order code detail Part Material
- Casing Galvanised sheet steel
- Effective pressure sensor Aluminium
- Damper blade Aluminium
- Damper blade seal Polyethylene, PE
- Shaft and linkage Galvanised steel
Plain bearings Plastic 
Gears Plastic, ABS



Order code detail Part Material
D Acoustic cladding casing Galvanised sheet steel
D Insulation of structure-borne noise Polyethylene, PE
D Lining Mineral wool according to EN 13501, fire rating Class A1, noncombustible
Dimensions/weights of TZ-Silenzio
NG B H L B₁ B₃ H₁ H₃ kg
125 198 152 1035 232 300 186 236 17
160 308 152 1035 342 410 186 236 21
200 458 210 1250 492 560 244 281 32
250 598 201 1250 632 700 235 311 41
315 798 252 1250 832 900 286 361 54

Dimensions/weights of TZ-Silenzio-D
NG B H L B₁ B₃ H₁ H₃ kg
125 198 152 1035 232 380 186 316 32
160 308 152 1035 342 490 186 316 38
200 458 210 1250 492 640 244 361 64
250 598 201 1250 632 780 235 391 72
315 798 252 1250 832 980 286 441 91



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.

Space required

Attachment

VARYCONTROL












Easy controller: Easy


700 300 300


Compact controllers: BC0, BL0 **, BM0, BM0-J6, LN0, LK0, XB0, XD0, XF0


700 300 300


Universal controllers: B13 *, B1B *, BP3 *, BPB *, BPG *, BB3 *, BBB *, BRB *, BRG *, BS3 *, BSB *, BSG *, BG3 *, BGB *, BH3 *, BHB *, BUDN, BUDNF, BUPN, BUPNF, BURN, BURNF, BUSN, BUSNF, BUSS, XB4, XD4, XF4


700 300 300

TROX UNIVERSAL












TROX UNIVERSAL: TUN, TUS, TUSD


900 350 400

LABCONTROL












EASYLAB: ELAB


700 350 400

* Control component has been discontinued

** Control component to be discontinued - do not include in new projects


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
  • TZ-Silenzio-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 a straight upstream section of the duct, 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. Some installation situations require straight duct sections upstream.



VARYCONTROL control components

AttachmentControlled variableInterfacePressure transducerActuatorManufacturer
Easy controller, dynamic
Easy

qv

0 – 10 Vintegralslow-running

integral
Compact controller, dynamic
BC0

-


0 – 10 V or 2 – 10 V or MP bus interfaceintegralslow-running

integral

BL0 **

qv

LonWorks FTT 10 interface

integralslow-running

integral
BM0

qv



Modbus RTU/BACnet MS/TP


integralslow-running

integral
BM0-J6

qv



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


integralslow-running

integral
LN0

qv

0 – 10 V or 2 – 10 Vintegralslow-running

integral
LK0

qv



KNX interface


integralslow-running

integral
XB0

qv

0 – 10 V or 2 – 10 Vintegralslow-running

integral
Compact controller, static
XD0

qv

0 – 10 V or 2 – 10 Vintegralslow-running

integral
XF0Δp0 – 10 V or 2 – 10 Vintegral, control range adjustable 25 - 550 Paslow-running

integral
Universal controller, dynamic

B13 *

qv

0 – 10 V or 2 – 10 Vintegralslow-running

separate

B1B *

qv

0 – 10 V or 2 – 10 Vintegralspring return actuator

separate
BUDN

qv

0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegralslow-running

separate
BUDNF

qv

0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegralspring return actuator

separate
XB4

qv

0 – 10 V or 2 – 10 Vintegralspring 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

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/TPTPintegral

Control range adjustable 25 – 450 Pa
slow-running

separate
BUPNFΔp0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegral

Control range adjustable 25 – 450 Pa
spring return actuator

separate
BURNΔp0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegral

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

separate
BURNFΔp0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegral

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

separate
BUSN

qv

0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegralslow-running

separate
BUSNF

qv

0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegralspring return actuator

separate
BUSS

qv

0 - 10 V or 2 - 10 V or MP bus or Modbus RTU or BACnet MS/TPTPintegralfast-running

separate
XD4

qv

0 – 10 V or 2 – 10 Vintegralspring return actuator

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

separate

* Control component has been discontinued

** Control component to be discontinued - do not include in new projects

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


 TROX UNIVERSAL control components

AttachmentControlled variableInterfacePressure 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, web server

qv = integral

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, web server

qv = integral

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, web server

qv = integral

Δp = separate
fast-running

separate

qv Volume flow rate
Δp Differential pressure
① TROX



LABCONTROL EASYLAB control components

AttachmentControlled variableInterfacePressure transducerActuatorManufacturer
EASYLAB
ELAB

qv, Δp *

TROX plug and play communication system and 0 - 10 V or 2 - 10 V or with optional accessories: Modbus, BACnet, web server

qv = integral

Δp = separate

fast-running, separate



or



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


① TROX

* Controlled variable dependent 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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