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1 Homepage > Products > Control units > VARYCONTROL > VAV terminal units > Type TVR-Ex Type TVR-Ex FOR THE CONTROL OF VARIABLE AIR VOLUME FLOWS IN POTENTIALLY EXPLOSIVE ATMOSPHERES (ATEX) Circular VAV terminal units for variable air volume systems, approved and certified for potentially explosive atmospheres (ATEX) ATEX-compliant construction and parts Approved for all gases, mists and vapours in zones 1 and 2, with electronic control additionally for dusts in zones 21 and 22 Suitable for the control of supply or extract air as well as for differential pressure control Electronic or pneumatic control components Closed blade air leakage to EN 1751, up to class 4 Casing air leakage to EN 1751, class C Optional equipment and accessories Spring return actuator Auxiliary switch with adjustable switching points for capturing the end positions

2 APPLICATION Application Circular EXCONTROL VAV terminal units of Type TVR-Ex for the precise supply air or extract air flow control in variable air volume systems For use in potentially explosive atmospheres (ATEX) Closed-loop volume flow control using an external power supply Electronic or pneumatic volume flow control Shut-off by means of switching (equipment supplied by others) Special features ATEX mark and certification ATEX equipment group II, approved for use in zones 1 and 2; electronic control also for zones 21 and 22 Volume flow rate can later be measured and adjusted on site; configuration is possible using personal computer software Classification Electronic control: Equipment group II Zones 1 and 2 (atmosphere: gases): II 2 G c II T5/T6 Zones 21 and 22 (atmosphere: dusts): II 2 D c II 80 C Pneumatic control: Equipment group II Zones 1 and 2 (atmosphere: gases): II 2 G c II T5/T6 Nominal sizes 125, 160, 200, 250, 315, 400 DESCRIPTION Construction Galvanised sheet steel P1: Inner duct powder-coated, silver grey (RAL 7001)

3 A2: Inner duct in stainless steel Parts and characteristics Ready-to-commission unit which consists of mechanical parts and control components. Averaging differential pressure sensor for volume flow rate measurement Damper blade Connection for equipotential bonding Cable bushings suitable for use in potentially explosive atmospheres ATEX-compliant control components, factory assembled and complete with wiring and tubing Aerodynamic functional testing on a special test rig prior to shipping of each unit Unit carries test label with relevant data High control accuracy (even with upstream bend R = 1D) Attachments Electronic control Pneumatic control Accessories Actuator with auxiliary switch for capturing the end positions Spring return actuator Useful additions Secondary silencer Type CA for demanding acoustic requirements Construction features Construction and materials comply with the EU directive and guidelines for use in potentially explosive atmospheres (ATEX) Spigot with lip seal, for circular connecting ducts to EN 1506 or EN Materialien und Oberflächen

4 Gehäuse und Innenrohr aus verzinktem Stahlblech Regelkomponenten aus Aluminiumdruckguss (Pneumatische Regelung: Kunststoff) Gleitlager aus Kunststoff Stellklappe aus Edelstahl mit Dichtung aus Kunststoff TPE Differenzdrucksensor aus Aluminium P1: luftführendes Innenrohr mit Pulverbeschichtung A2: luftführendes Innenrohr aus Edelstahl Standards and guidelines Directive 94/9/EC: Equipment and protective systems intended for use in potentially explosive atmospheres Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3). Nominal sizes 125 and 160 meet the general requirements, nominal sizes meet the increased requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage Casing air leakage to EN 1751, class C Maintenance Maintenance-free as construction and materials are not subject to wear Electronic control Zero point correction of the static differential pressure transducer should be carried out once per year (recommendation) TECHNICAL INFORMATION Function, Technical data, Quick sizing, Specification text, Order code, Produktbeziehungen

5 FUNCTION Functional description The VAV terminal unit is fitted with a differential pressure sensor for measuring the volume flow rate. The control components (attachments) include a differential pressure transducer that transforms the differential pressure (effective pressure) into an electric signal, a controller, and an actuator. For most applications, the setpoint value comes from a room temperature controller which is installed outside of the potentially explosive atmosphere. The controller compares the actual value with the setpoint value and alters the control signal of the damper actuator if there is a difference between the two values. The connections for the supply voltage and for the voltage signals are made in a terminal box that is suitable for use in potentially explosive atmospheres. TECHNICAL DATA Volumenstrombereiche Die Mindestdruckdifferenz der VVS-Regelgeräte ist eine wichtige Größe zur Planung des Kanalnetzes und zur Dimensionierung des Ventilators einschließlich der Drehzahlsteuerung. Es muss sichergestellt sein, dass unter allen Betriebsbedingungen an allen Regelgeräten ein ausreichender Kanaldruck ansteht. Der Messpunkt oder die Messpunkte für die Drehzahlsteuerung des Ventilators sind dementsprechend auszuwählen. Die Volumenstrombereiche von VVS-Regelgeräten sind von der Nenngröße und von der verwendeten Regelkomponente (Anbauteil) abhängig. Die dargestellten Tabellenwerte sind die Minimal- und Maximalwerte des VVS-Regelgerätes. Für bestimmte Regelkomponenten gelten eingeschränkte Bereiche. Dies gilt insbesondere für Regelkomponenten mit statischem Differenzdrucktransmitter. Volumenstrombereiche für alle Regelkomponenten enthält das Auslegungsprogramm Easy Procuct Finder. Nominal sizes mm Volume flow rate range l/s or m³/h Volume flow rate control range Approx. 15 to 100 % of the nominal volume flow rate Maximum differential pressure 1000 Pa Operating temperature C

6 Elektronisch Versorgungsspannung (Wechselspannung) 24 V AC ± 10 %, 50/60 Hz Versorgungsspannung (Gleichspannung) 24 V DC ± 10 % Anschlussleistung (Wechselspannung) Max. 20 VA Anschlussleistung (Gleichspannung) Max. 20 W Eingang Sollwertsignal 0 10 V DC, R > 100 kω a Ausgang Istwertsignal 0 10 V DC, max. 0,5 ma Schutzklasse III (Schutzkleinspannung) Schutzgrad IP 42 EG-Konformität ATEX nach 94/9/EG, EMV nach 2004/108/EG, Niederspannung nach 2006/95/EG Pneumatisch Betriebsdruck 1,3 bar ± 0,1 bar Luftverbrauch Volumenstromregelung 50 ln/h Luftverbrauch Druck-Volumenstrom-Kaskade 100 ln/h Steuerdruck 0,2 1,0 bar Maximal zulässiger Druck 1,5 bar Druckluft öl-, wasser- und staubfreie Instrumentendruckluft Schutzgrad IP 42

7 QUICK SIZING Die Schnellauslegung gibt einen guten Überblick über die zu erwartenden Schalldruckpegel im Raum. Ungefähre Zwischenwerte können interpoliert werden. Zu exakten Zwischenwerten und Spektraldaten führt die Auslegung mit unserem Auslegungsprogramm Easy Product Finder. Die Auswahl der Nenngröße erfolgt zunächst nach den gegebenen Volumenströmen V und V. In der Schnellauslegung sind praxisgerechte Dämpfungswerte berücksichtigt. Liegt der Schalldruckpegel über dem zulässigen Wert, sind ein größeres Volumenstrom-Regelgerät und/oder ein Schalldämpfer erforderlich. TVR-Ex, electronic, Sound pressure level at differential pressure 150 Pa min max Nominal size V Air-regenerated noise Case-radiated noise Nominal size 125 V LPA LPA1 LPA2 l/s m³/h db(a) <

8 TVR-Ex 2 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 500 mm 3 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 1000 mm 4 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 1500 mm TVR-Ex, pneumatic, Sound pressure level at differential pressure 150 Pa

9 Nominal size V Air-regenerated noise Case-radiated noise Nominal size 125 V LPA LPA1 LPA2 l/s m³/h db(a) <15 <15 <

10 TVR-Ex 2 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 500 mm 3 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 1000 mm 4 TVR-Ex with secondary silencer CA, insulation thickness 50 mm, length 1500 mm SPECIFICATION TEXT VAV terminal units for variable and constant air volume systems in potentially explosive atmospheres, suitable for supply or extract air, available in 6 nominal sizes. High control accuracy (even with upstream bend R = 1D). Ready-to-commission unit which consists of the mechanical parts, the electronic control components, and parts for equipotential bonding and for use in potentially explosive atmospheres. Each unit contains an averaging differential pressure sensor for volume flow rate measurement and a damper blade. Factory-assembled control components complete with wiring and tubing. Differential pressure sensor with 3 mm measuring holes (resistant to dust and pollution) Spigot with lip seal, for circular connecting ducts to EN 1506 or EN Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3). Casing air leakage to EN 1751, class C. Special features ATEX mark and certification

11 ATEX equipment group II, approved for use in zones 1 and 2; electronic control also for zones 21 and 22 Volume flow rate can later be measured and adjusted on site; configuration is possible using personal computer software Materialien und Oberflächen Gehäuse und Innenrohr aus verzinktem Stahlblech Regelkomponenten aus Aluminiumdruckguss (Pneumatische Regelung: Kunststoff) Gleitlager aus Kunststoff Stellklappe aus Edelstahl mit Dichtung aus Kunststoff TPE Differenzdrucksensor aus Aluminium P1: luftführendes Innenrohr mit Pulverbeschichtung A2: luftführendes Innenrohr aus Edelstahl Construction Galvanised sheet steel P1: Inner duct powder-coated, silver grey (RAL 7001) A2: Inner duct in stainless steel Technical data Nominal sizes: 125 to 400 mm Volume flow rate range: 15 to 1680 l/s or 54 to 6048 m³/h Volume flow rate control range: approx % of the nominal volume flow rate Maximum differential pressure: 1000 Pa Attachments Variable volume flow control with electronic controller to switch a control signal and an actual value signal for integration into the central BMS. Supply voltage 24 V AC Supply voltage for actuator: 230 V AC Signal voltages 0 10 V DC 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 % of the nominal volume flow rate Actuator with adjustable running time, s

12 Sizing data V [m³/h] Δp [Pa] st Air-regenerated noise L [db(a)] PA Case-radiated noise L [db(a)] PA This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

13 ORDER CODE Type TVR-Ex VAV terminal unit for use in potentially explosive Attachments (control component) For example atmospheres Material Electronic control S1S Internal controller and actuator Pneumatic control No entry: galvanised sheet steel P1 Inner duct powder-coated, silver grey (RAL 7001) PG5 PJ5 Volume flow controller with actuator Pressure and volume flow cascade (±20 Pa) A2 Inner duct in stainless steel Nominal size [mm] Operating values [m³/h or l/s, Pa] Electronic control V min Vmax Pneumatic control Volume flow rate V min Vmax Pressure and volume flow cascade V min V max / Δpsetpoint Damper blade position Only for spring return actuators and pneumatic actuators NO NC Pressure off/power off to OPEN Power off/pressure off to close Variants, Attachments, Dimensions and weight ATTACHMENTS TVR-Ex, EXCONTROL Electric control components

14 Order code detail Control function Controller Differential pressure transducer Actuator Internal controller S1S Volume flow rate Universal controller (use in areas with potentially explosive atmospheres) Schischek Static, integral Actuator S1F Volume flow rate Universal controller (use in areas with potentially explosive atmospheres) Schischek Static, integral Spring return actuator S1X Volume flow rate Universal controller (use in areas with potentially explosive atmospheres) Schischek Static, integral Actuator with auxiliary switches S1Y Volume flow rate Universal controller (use in areas with potentially explosive atmospheres) Schischek Static, integral Spring return actuator with auxiliary switch External controller TES Volume flow rate Volume flow rate controller TCU3 (use in areas with potentially explosive atmospheres) TROX/Schischek Static Actuator TEF Volume flow rate Volume flow rate controller TCU3 (use in areas with potentially explosive atmospheres) TROX/Schischek Static Spring return actuator TEX Volume flow rate Volume flow rate controller TCU3 (use in areas with potentially explosive atmospheres) TROX/Schischek Static Actuator with auxiliary switches TEY Volume flow rate Volume flow rate controller TCU3 (use in areas with potentially explosive atmospheres) TROX/Schischek Static Spring return actuator with auxiliary switch TVR-Ex, EXCONTROL Pneumatic control components

15 Order code detail Control function Controller Differential pressure transducer Actuator Volume flow controllers PG5 Volume flow rate Volume flow controller Sauter Integral Actuator Pressure and volume flow cascade PJ5 Room pressure Room pressure controller ± 20 Pa Volume flow controller Sauter Integral Actuator PL5 Room pressure Room pressure controller ± 50 Pa Volume flow controller Sauter Integral Actuator Anbauteile: VARYCONTROL Regelkomponenten Regel- größe Schnittstelle V min -/ V max - Verstellung Differenzdrucktransmitter Fabrikat LVC TVR TVJ TVT TZ- TA- TVZ TV S S Easyregler Dynamisch Easy V Integriert Integriert 1 Compactregler Dynamisch BC0 V MP-Bus Integriert Integriert 2 BF0 V MP-Bus Integriert Integriert 2 BL0 V LonWorks Integriert Integriert 2 BM0 V Modbus Integriert Integriert 2 BM0- J6 V Modbus und steckerfertiger Anschlussleitung Integriert Integriert 2

16 XG0 V Integriert Integriert 3 XB0 V Integriert Integriert 3 LN0 V Integriert Integriert 5 LK0 V KNX 5 LY0 V Integriert Integriert 5 Compactregler Statisch SA0 V Integriert Integriert 4 SC0 Δp Integriert integriert 4 Universalregler Dynamisch B11 V Integriert, Drehmoment für TVT 2 B13 V Integriert 2 B27 V Integriert 2 B1B V Integriert Federrücklaufantrieb 2 XC3 V Integriert Federrücklaufantrieb 3 Universalregler Statisch BP1 V MP-Bus Separates Bauteil, Drehmoment für TVT 2 BP3 V MP-Bus Separates Bauteil 2 BPB V MP-Bus Separates Bauteil Federrücklaufantrieb 2

17 BPG V MP-Bus Separates Bauteil 2 BB1 V Separates Bauteil, Drehmoment für TVT 2 BB3 V Separates Bauteil 2 BBB V Separates Bauteil Federrücklaufantrieb 2 XD1 V Integriert 3 XD3 V Integriert Federrücklaufantrieb 3 BR1 Δp MP-Bus 100 Pa, Drehmoment für TVT 2 BR3 Δp MP-Bus 100 Pa 2 BRB Δp MP-Bus 100 Pa Federrücklaufantrieb 2 BRG Δp MP-Bus 100 Pa 2 BS1 Δp MP-Bus 600 Pa, Drehmoment für TVT 2 BS3 Δp MP-Bus 600 Pa 2 BSB Δp MP-Bus 600 Pa Federrücklaufantrieb 2 BSG Δp MP-Bus 600 Pa 2 BG1 Δp 100 Pa, Drehmoment für TVT 2 BG3 Δp 100 Pa 2

18 BGB Δp 100 Pa Federrücklaufantrieb 2 BH1 Δp 600 Pa, Drehmoment für TVT 2 BH3 Δp 600 Pa 2 BHB Δp 600 Pa Federrücklaufantrieb 2 XE1 Δp Integriert, 100 Pa 3 XE3 Δp Integriert, 100 Pa Federrücklaufantrieb 3 XF1 Δp Integriert, 600 Pa 3 XF3 Δp Integriert, 600 Pa Federrücklaufantrieb 3 1 TROX, 2 TROX/Belimo, 3 TROX/Gruner, 4 Sauter, 5 Siemens Bestellschlüsseldetail, V Volumenstrom, Δp Differenzdruck Anbauteile: LABCONTROL Regelkomponenten Regel- größe Schnittstelle V min -/ Vmax - Verstellung Differenzdrucktransmitter TZ- TA- TVR TVJ TVT TVZ TVA TVRK TV S S Easylabregler Statisch Raumzuluft Raumabluft Raumdruck TCU3 Integriert Elab Einzelregler

19 Raumzuluft Raumdruck TCU3 Integriert Einzelregler Raumabluft Raumdruck TCU3 Integriert Einzelregler Elab Raumzuluft Raumabluft Raumdruck TCU3 Integriert Laborabzug Einzelregler Elektronischer Regler Statisch Raumzuluft TMA Raumabluft Raumdruck TCU-LON-II mit LonWorks- Schnittstelle Integriert TMB (bürstenloser Motor) TMA Raumzuluft Raumdruck TCU-LON-II mit LonWorks- Schnittstelle Integriert

20 TMB (bürstenloser Motor) TMA Raumabluft Raumdruck TCU-LON-II mit LonWorks- Schnittstelle Integriert TMB (bürstenloser Motor) Raumzuluft TMA Raumabluft Raumdruck Laborabzug TCU-LON-II mit LonWorks- Schnittstelle Integriert TMB (bürstenloser Motor) DIMENSIONS AND WEIGHT

21 Installation details, Basic information and nomenclature INSTALLATION DETAILS Installation and commissioning Connections for equipotential bonding: Suitable cables must be connected by others Electronic control Any installation orientation Zero point correction required Pneumatic control Installation orientation must be as shown on the sticker Anströmbedingungen Die Volumenstromgenauigkeit ΔV gilt für gerade Anströmung. Formstücke wie Bögen, Abzweige oder Querschnittsveränderungen verursachen Turbulenzen, die die Messung beeinflussen können. Bei Ausführung von Luftleitungsanschlüssen, wie z. B. dem Abzweig von einer Hauptleitung, ist die EN 1505 zu beachten. Für manche Einbausituationen sind gerade Anströmlängen erforderlich. Platzbedarf für Inbetriebnahme und Instandhaltung Um die Arbeiten zur Inbetriebnahme und Instandhaltung zu ermöglichen, ausreichenden Bauraum im Bereich der Anbauteile freihalten. Gegebenenfalls sind Revisionsöffnungen in ausreichender Größe erforderlich, sodass die Anbauteile leicht zugänglich sind. Space required

22 Nominal size mm BASIC INFORMATION AND NOMENCLATURE Principal dimensions ØD [mm] VAV terminal units made of stainless steel: Outside diameter of the spigot VAV terminal units made of plastic: Inside diameter of the connecting spigot ØD₁ [mm] Pitch circle diameter of flanges ØD₂ [mm] Outside diameter of flanges ØD₄ [mm] Inside diameter of the screw holes of flanges L [mm] Length of unit including connecting spigot L₁ [mm] Length of casing or acoustic cladding

23 B [mm] Duct width B₁ [mm] Screw hole pitch of flange (horizontal) B₂ [mm] Outside dimension of flange (width) B₃ [mm] Width of device H [mm] Duct height H₁ [mm] Screw hole pitch of flange (vertical) H₂ [mm] Outside dimension of flange (height) H₃ [mm] Unit height n [ ] Number of flange screw holes T [mm] Flange thickness m [kg] Unit weight including the minimum required attachments (e.g. Compact controller) Acoustic data f [Hz] m Octave band centre frequency Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH

24 Homepage > Products > Control units > VARYCONTROL > VAV terminal units > Type TVR-Ex L [db(a)] PA A-weighted sound pressure level of air-regenerated noise of the VAV terminal unit, system attenuation taken into account L [db(a)] PA1 A-weighted sound pressure level of air-regenerated noise of the VAV terminal unit with secondary silencer, system attenuation taken into account L [db(a)] PA2 A-weighted sound pressure level of case-regenerated noise of the VAV terminal unit, system attenuation taken into account L [db(a)] PA3 A-weighted sound pressure level of case-regenerated noise of the VAV terminal unit with acoustic cladding, system attenuation taken into account All sound pressure levels are based on 20 µpa. Volume flow rates V [m³/h] and [l/s] nom Nominal volume flow rate (100 %) The value depends on product type and nominal size Values are published on the internet and in technical leaflets, and stored in the Easy Product Finder design software. Reference value for calculating percentages (e.g. V ) Upper limit of the setting range and maximum volume flow rate setpoint value for the VAV terminal unit max V [m³/h] and [l/s] min unit Technically possible minimum volume flow rate The value depends on product type, nominal size and control component (attachment) Values are stored in the Easy Product Finder design software Lower limit of the setting range and minimum volume flow rate setpoint value for the VAV terminal unit Depending on the controller, setpoint values below V (if V equals zero) may result in unstable control or shut-off min unit min V [m³/h] and [l/s] max Upper limit of the operating range for the VAV terminal unit that can be set by customers Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH

25 Homepage > Products > Control units > VARYCONTROL > VAV terminal units > Type TVR-Ex V can only be smaller than or equal to V max In case of analog signalling to volume flow controllers (which are typically used), the set maximum value (V allocated to the setpoint signal maximum (10 V) (see characteristic) nom max ) is V [m³/h] and [l/s] min Lower limit of the operating range for the VAV terminal unit that can be set by customers V should be smaller than or equal to V min Do not set V smaller than V, otherwise the control may become unstable or the damper blade may close V may equal zero min min min unit max In case of analog signalling to volume flow controllers (which are typically used), the set minimum value (V to the setpoint signal minimum (0 or 2 V) (see characteristic) min ) is allocated V [m³/h] and [l/s] Volume flow rate ΔV [± %] Volume flow rate tolerance from setpoint value ΔV [± %] warm Volume flow rate tolerance for the warm air flow of dual duct terminal units Differential pressure Δp [Pa] st Static differential pressure Δp [Pa] st min Static differential pressure, minimum The static minimum differential pressure is equal to the pressure loss of the VAV terminal unit when the damper blade is open, caused by flow resistance (sensor tubes, damper mechanism) If the pressure on the VAV terminal unit is too low, the setpoint volume flow rate may not be achieved, not even when the damper blade is open Important factor in designing the ductwork and in rating the fan including speed control Sufficient duct pressure must be ensured for all operating conditions and for all terminal units, and the measurement point or points for speed control must have been selected accordingly to achieve this Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH

26 Homepage > Products > Control units > VARYCONTROL > VAV terminal units > Type TVR-Ex Ausführungen Verzinktes Stahlblech Luftführendes Gehäuse aus verzinktem Stahlblech Im Luftstrom befindliche Teile, wie bei der Serie beschrieben Außenliegende Bauteile, beispielsweise Konsolen und Deckel, in der Regel aus verzinktem Stahlblech Pulverbeschichtete Oberfläche (P1) Luftführendes Gehäuse aus verzinktem Stahlblech, pulverbeschichtet RAL 7001, silbergrau Im Luftstrom befindliche Teile pulverbeschichtet oder Kunststoff Fertigungsbedingt eventuell einige im Luftstrom liegende Teile aus Edelstahl oder Aluminium pulverbeschichtet Außenliegende Bauteile, beispielsweise Konsolen und Deckel, in der Regel aus verzinktem Stahlblech Edelstahl (A2) Luftführendes Gehäuse aus Edelstahl Typ Im Luftstrom befindliche Teile pulverbeschichtet oder Edelstahl Außenliegende Bauteile, beispielsweise Konsolen und Deckel, in der Regel aus verzinktem Stahlblech TROX GmbH Online-Services Service-Hotlines Heinrich-Trox-Platz D Neukirchen-Vluyn Tel.: +49 (0) Fax: +49 (0) Order-Status (My TROX NET) TROX Academy Catalogue Download Your contact partner Online fault report BIM Sales Germany and technical consulting +49 (0) Contact Technical service +49 (0) Contact Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH