DTV, DTH and VVR Roof- and wall fans DTV Roof fan DTH Roof fan VVR Wall fan

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1 Product information - Version 3 DTV, DTH and VVR Roof- and wall fans DTV Roof fan DTH Roof fan VVR Wall fan

2 Overskrift placering Table of contents Choice of motor... 4 DTV roof fans Technical specifications and drawings Capacity diagrams Sound diagrams... 8 DTH roof fans Technical specifications and drawings Capacity diagrams Sound diagrams VVR wall fans Technical specifications and drawings Capacity diagrams Sound diagrams Sound attenuation with MGO wall duct Assembly Roof and wall fans Usage EXHAUSTO wall and roof ventilation extractor fans are used in comfort systems and in industry, where low energy consumption, low noise levels, low running costs and reliability are required. The 3 product families are manufactured in cast aluminum, ensuring long-term, problem-free operation. DTV and DTH are vertical and horizontal discharge extractor fans, respectively. The fan can be opened up making it easier to clean the impeller and to access the duct system. WR is a wall extraction fan with radial discharge a simple and dependable wall installation when installed with the MGO wall duct. Fan data Capacity equations and calculations Sound equations and calculations Calculation example Controllers and accessories guide Find more information on our website - Complete electronic documentation - EXselect Product selection software for professional calculations. Easy access for service and cleaning DTV and DTH fans can be opened easily for cleaning and maintaining the fan, duct and duct system. Type description Size Motor type DTV FC Pole (rpm) 4 = = 900 Qty. Phases/voltage 1 = 1 x 230 V 3 = 3 x 400 V Installation VVR fans are used with MGO ducts, and are made of galvanised sheet metal with 25 mm mineral wool inner lining that insulates against sound and condensation. MGO ducts have built-in anti-back draught shutters which close when the fans are not running. 2

3 - effective ventilation to suit every solution Wide range of use. DTV, DTH and VVR fans are ideal for ventilation tasks where effectiveness and low running costs are required. The three product families are available in all sizes with adjustable variable motors. High efficiency The specially designed centrifugal impellers with backward-bent blades are highly efficient and have low running costs. Vertical exhaust DTV prevents dirt accumulating on the roof surface and the downdraught of polluted air. And is less noisy. Very reliable Direct operation of roof and wall fans is a very reliable operating method. Robust design DTV, DTH and VVR fans are manufactured in cast aluminum that is extremely corrosion resistant. The design offers optimum ventilation with minimum noise, even for large volumes of air. Safety A rust-free safety net covers the centrifugal impeller. Optional safety wire is available for DTH fans for when the installation is exposed or when there is a risk of vandalism. Installation DTV fans are designed for use with TGK roof ducts, for simple and optimal installation. DTH fans can be used with TGR and TGK ducts. TGR and TGK roof ducts have a built-in cable duct and anti-back draught AOR and are repair circuit breaker ready. TGR and TGK roof ducts are available with 3 standard length flashings, depending on noise attenuation and roof pitch requirements. TGR and TGK roof ducts are available with flashing to fit required pitch. TGR TGK 3

4 Choice of motor General technical specifications Motor DTV/DTH/VVR Choice of motor It is important to match the motor to the right size of roof or wall fan. At the same time it is recommended the ventilation unit be on-demand controlled. EXHAUSTO roof (DTV and DTH) and wall (VVR) fans' motors are directly connected to the centrifugal impeller and the motor is mounted outside the air stream. There are two types of DTV roof fan motors available: single-phase (4-1) or with frequency converter (FC) DTH roof fans are delivered with a single-phase motor (4-pole) VVR wall fans are delivered with a single-phase motor (4-pole) Motor enclosure is thermal class IP54 and all materials are at least thermal class F (155 C) Every motor has built-in excessive current protection FC-motor technical specifications Motor DTV The FC motor for a DTV roof fan is a three-phase motor with a fitted frequency converter with 1 x 230 V connection. The frequency converter is specially developed for compatibility with the EXHAUSTO DTV roof fan and, when used with this motor, ensures the lowest possible operating costs. The frequency converter protects the motor from overloading, blocking, over and under voltage, and over heating.the frequency converter is factory programmed by EXHAUSTO for optimal operation of DTV fans. It only has to be connected to a 1 X 230 VAC supply and to an EXHAUSTO automatic EFC1P, MAC10 or a MAC 11 controller. Descriptions of the controllers and their functions are on the back page. Advantages An energy saving motor with on-demand control A very stable rpm unaffected by wind conditions or short term changes in the system It can be manually adjusted (linear scale from 0-10) via an EFC1P control panel with circuit breaker. For automatic operation it can be connected to a MAC10 or a MAC11 A market tested and reputable product incorporating new technology Single-phase motor technical specifications Motor DTV/DTH/VVR The single-phase motors can be used with DTV, DTH and VVR roof fans All types are 4-pole 1400 rpm and can be voltage regulated using EXHAUSTO EFC15, EFC35 and MAC10 with the add on module MAC10MPR. 4

5 DTV - Technical specifications and drawings Technical equations and calculations Motor 4-pole = 1400 rpm The actual rpm is dependent on the load. The capacity diagram and noise figures show real values. n = nominal rpm U = voltage (Volt) I = The maximum current (Amp) for the whole regulated area or the full load current if it is greater. P 1 = maximum power consumption (Watt). P 2 = power rating (Watt) is the power rating marked on the motor. Motor Operating mode Overload protection Power cable Weight Measurement table (mm) Size n rpm U Volt I Amp P 1 kw P 2 kw A B 1 2 C D E Length [m] kg A BxB CxC D ø E DTV DTV x230 0,14 0,04 0,01 0, DTV x230 0,35 0,07 0,04 0, DTV x230 0,8 0,16 0,09 1, DTV FC x230 1,4 0,21 0,18 1, DTV x230 1,8 0,37 0,25 1, DTV FC x230 2,7 0,44 0,37 1, DTV x230 2,9 0,60 0,40 1, DTV FC x230 3,7 0,85 0,75 1, DTV FC x230 9,4 1,47 1,10 1, Operating mode A Single-phase 1 x 230 V motor for manual, variable speed control via an EFC speed regulator or for automatic operation with a MAC10 voltage regulator with MAC10 constant pressure regulator. The motor can be used at a fixed rpm (1400 rpm) when directly connected to 1 x 230 V. B Motor with built-in frequency converter FC for use with manual variable speed control via an EFC1P electronic speed regulator or automatically with MAC10 or MAC11 constant pressure regulators. Overload protection 1 Built-in thermal protection (TP211) in the motor's power circuit. 2 Built-in overload protection in the frequency converter FC. Cable type C 3 x 0,75 mm 2 D 3 x 1,0 mm 2 E 7 x 0,34 mm 2 Temperature Calculations for t = 20 C Density = 1.2 kg/m 3 Median temperature: min. -12 C, max. +60 C Ambient temperature: max. +40 C 10 A D Connecting cable 2. Top part 3. Motor 4. Centrifugal impeller 5. Bottom part 6. Spigot 7. Locking screws 8. Handle 9. Hinges 10. Net E C B 5

6 DTV Capacity diagrams DTV DTV FC DTV DTV DTV DTV FC Conditions: see page 18 Capacity curve SFP curve Operation curves 6

7 DTV Capacity diagrams DTV Throw DTV FC The throw is the distance from the fan's upper side to the point on the centre line where air speed has fallen to 2.0 m/s. DTV FC DTV - Resistance to flue gases Conditions: see page 18 Capacity curve SFP curve Operation curves 7

8 DTV sound diagrams DTV160 DTV250 DTV Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz DTV200 DTV315 Hz Hz Hz Hz Hz Hz Hz Hz Hz Hz Conditions: see page 18 Capacity curve 8

9 DTV sound diagrams DTV400 DTV Hz Hz Hz Hz Hz DTV Conditions: see page 18 Capacity curve 9

10 DTH - Technical specifications and drawings Technical equations and calculations Motor 4-pole = 1400 rpm The actual rpm is dependent on the load. The capacity diagram and noise figures show real values. n = nominal rpm U = voltage (Volt) I = The maximum current (Amp) for the whole regulated area or the full load current if it is greater. P 1 = maximum power consumption (Watt). P 2 = power rating (Watt) is the power rating marked on the motor. Motor Operating mode Overload protection Power cable* Weight Measurement table (mm) Size n rpm U Volt I Amp P 1 kw P 2 kw A B 1 2 Length [m] kg A ø B ø C D ø E DTH x230 0,14 0,04 0,01 0, DTH x230 0,35 0,07 0,04 1, DTH x230 0,8 0,16 0,09 1, DTH x230 1,8 0,37 0,25 1, DTH DTH x230 2,6 0,60 0,40 1, * Cable type: 3 x 0,75 mm 2 Operating mode A Single-phase 1 x 230 V motor for manual, variable speed control via an EFC speed regulator or for automatic operation with a MAC10 voltage regulator with MAC10 constant pressure regulator. The motor can be used at a fixed rpm (1400 rpm) when directly connected to 1 x 230 V. B Motor with built-in frequency converter FC for use with manual variable speed control via an EFC1P electronic speed regulator or for automatic operation with MAC10 or MAC11 constant pressure regulators. Overload protection 1 Built-in thermal protection (TP211) in the motor's power circuit. 2 Built-in overload protection in the frequency converter FC. Temperature Calculations for t = 20 C Density = 1.2 kg/m 3 Median temperature: min. -12 C, max. +60 C Ambient temperature: max. +40 C 1. Wiring connection duct 2. Cover 3. Motor 4. Centrifugal impeller 5. Splitter plate 6. Safety Net 7. Underside with spigot. 10

11 DTH - Capacity curves DTH DTH DTH DTH DTH DTH DTH Resistance to flue gases Conditions: see page 18 Capacity curve SFP curve Operation curves 11

12 DTH - Sound curves DTH160 DTH250 DTH DTH200 DTH Conditions: see page 18 Capacity curve 12

13 DTH - Sound curves DTH DTH Conditions: see page 18 Capacity curve 13

14 VVR - Technical specifications and drawings Technical equations and calculations Motor 4-pole = 1400 rpm The actual rpm is dependent on the load. The capacity diagram and noise figures show real values. n = nominal rpm U = voltage (Volt) I = The maximum current (Amp) for the whole regulated area or the full load current if it is greater. P 1 = maximum power consumption (Watt). P 2 = power rating (Watt) is the power rating marked on the motor. Motor Operating mode Overload protection Power cable* Weight Measurement table (mm) Size n rpm U Volt I A P 1 kw P 2 kw A B 1 2 Length [m] kg A ø B C x C D ø E VVR x230 0,14 0,04 0,01 0, VVR x230 0,35 0,07 0,04 1, VVR x230 0,8 0,16 0,09 1, VVR x230 1,8 0,37 0,25 1, * Cable type: 3 x 0,75 mm 2 Operating mode A Single-phase 1 x 230 V motor for manual, variable speed control via an EFC speed regulator or for automatic operation with a MAC10 voltage regulator with MAC10 constant pressure regulator. The motor can be used at a fixed rpm (1400 rpm) when directly connected to 1 x 230 V. B Motor with built-in frequency converter FC for use with manual variable speed control via an EFC1P electronic speed regulator or for automatic operation with MAC10 or MAC11 constant pressure regulators. VVR Overload protection 1 Built-in thermal protection (TP211) in the motor's power circuit. 2 Built-in overload protection in the frequency converter FC. Temperature Calculations for t = 20 C Density = 1.2 kg/m 3 Median temperature: min. -12 C, max. +60 C Ambient temperature: max. +40 C D A Electrical connection 2 2. Cover 3. Motor 4. Centrifugal impeller C E 7 3 B 5. Motor plate 6. Safety net 7. Underside with spigot 8. Wall flange

15 VVR - Capacity curves VVR VVR VVR VVR VVR Conditions: see page 18 Capacity curve SFP curve Operation curves 15

16 VVR Sound curves VVR160 VVR VVR VVR200 VVR Conditions: see page 18 Capacity curve 16

17 VVR - Sound attenuation with MGO Pressure drop in the MGO wall duct Insertion attenuation p [Pa] t 100 Size 125 Hz 250 Hz 500 Hz Hz Hz Hz Hz MGO MGO MGO MGO160 MGO MGO200 MGO250 MGO315 Tolerance +/- 4 db. Insertion attenuation is given, including noise generated by the overpressure damper AO. - = noise generation (in the octave band) from the overpressure damper in question q V [I/s] q V [m3/h] 1000 l/s = 1m3/s Conditions: a. The insertion attenuation is given with an air flow at 80% of max. output for VVR (1400 rpm) in the same size as MGO. b. VVR mounted on a MGO with 350 mm length with antiback draught. p t = Total pressure drop with open anti-back draught shutter. VVR - Assembly MGO Size A Ø mm B x B mm Accessories C Ø mm Weight kg Diffuser Cover flange intake gate MGO FLD160 MGAF160 ILMF160 FLD VVR MGO FLD200 MGAF200 ILMF200 MGO FLD250 MGAF250 ILMF250 MGO FLD315 MGAF315 ILMF315 ILMF MGAF Max. 400 mm MGO VVR MGAF FLD MGO FLD MGO MGO AO AO SR AO ILMF VVR MF ILU VVR ILU VVR Figure 1 When the wall duct (MGO) is flush with the inner wall, a cover flange (MGAF) and a gate coupler (ILMF) should be mounted, before mounting the diffuser (FLD). Figure 2 Mount a gate (ILU) and coupler (MF) or a spiro tube (SR) if the wall duct (MGO) length is less than the thickness of the wall. Then mount the diffuser. Figure 3 Mount a gate (ILU) and spiro tube if there is a large distance between the wall duct (MGO) and extractor position. 17

18 Capacity equations and calculations EXHAUSTO DTV, DTH and VVR fans are measured with a straight pipe (length 3 x diameter) immediately before the fan. A system pressure loss can occur if the minimum distance is not maintained during installation and this should be taken into consideration during project planning. The size of loss can be calculated from the relevant technical literature. EXHAUSTO DTV, DTH and VVR fans are measured with a pipe that has the same dimensions as the fan s spigot. Apart from the DTV FC fan, which is measured with a pipe with diameter of 500. The stated operation curves show the characteristic of the fan with downwards regulation. The SFP curves show the specific electricity used in J/m3 ventilated air volume through the fan. Capacity curve SFP curve Operation curves Measurement setup p t = Total pressure Temperature = 20 C Density = 1,2 kg/m 3 SFP = specific electricity consumption for air transport (J/m 3 ) q v = volume flow (l/s) P 1 = Maximum power consumption (watt) P 1 = SFP x q v x 10-3 P 1 = SFP (J/m3 ) x q v (l/s) Equations and calculations for sound data Fan data The fans must be installed with sound attenuators in the duct system in accordance with the sound requirements of the ventilated premises. To meet current standards the duct system should be insulated for sound, thermal loss and condensation. Sound output levels are used as the basis for calculating the sound pressure level in the operational area of the unit, and the level of silencing required in the duct system itself. K W : Correction factor for calculating sound output in the first octave band. : Correction factor for calculating A-weighted sound output. : Correction factor for calculating A-weighted sound pressure. L W : Sound output level db - Reference 1 pw - Tolerance: 63 db. I: Upper operating area. II: Lower operating area. : Sound output level for extractor channel = + K W can be read from the curve diagram. : Sound output level to surroundings = + K W can be read from the curve diagram. L WA3 :A-weighted sound output to the surroundings L WA3 = + can be read from the curve diagram. : Sound pressure level db(a) at a distance of 10 metres from hemi-spherical sound dissipation in free field and with insulated connection ducts. read as - = +, sound pressure level at 20 meters distance: (20 m) = (10 m) - 6 db. 18

19 Sound data a calculation example Calculation example: Fan: DTV FC Desired output: q v = 1100 l/s (3.960 m 3 /h) og P t = 200 Pa Reading: Read A (extractor channel) from the curve diagram. A : 72 in area I Suction side (extract air): Frequency band (Hz) K 2 K 4 K 8 K read in area I Correction factor K W ( ) is read from the table Ljudeffektnivå sugsidan Surroundings (sound output): Frequency band (Hz) K 2 K 4 K 8 K db(a) read in area I Correction factor K W ( ) is read from the table Sound output level in surroundings Surroundings (sound pressure): Viktning db(a) read in area I 72 Correction factor ( ) is read from the table. -22 Sound pressure level in surroundings 50 To calculate sound data please see our product portfolio programme on our website. DTV FC Fan data Calculation example 19

20 Controllers and accessories guide Speed controller EFC EXHAUSTO electronic regulators EFC are designed to variable control the speed of EXHAUSTO fans. The EFC controller can variably adjust the motor's rpm and in this fashion adjust the fan's capacity (25-100% of full capacity). The controller's built-in potentiometer can set a minimum current / minimum air flow. The EFC speed controller has radio noise suppression, is DEMKO approved and CE certified. EFC controllers are available in four sizes and in different types. Speed regulator for FC motors EFC1P Electronic speed regulator for FC motors, uses 0-10 V control signal. Used for manual variable rpm control for all EXHAUSTO fans installed with FC motors. The EPC1P can variably adjust the rpm between % of the max. rpm. Constant Pressure Regulator MAC EXHAUSTO constant pressure controllers MAC10 and MAC11 (Multi Application Controller) are microprocessor based controllers, designed to control the pressure of motor driven fans that are fitted with FC frequency converters. For single-phase motors use the MAC10 with the MAC10MPR add on module. MAC11 is available with LonWorks a communication platform for DDC units and for connecting outside air temperature sensors for use with outside air temperature compensation. Wall ducts for VVR fans MGO We reserve the right to make changes without notice. Roof ducts EXHAUSTO MGO wall ducts are galvanised with 25 mm mineral wool inner lining to insulate against sound and condensation. They also have build in anti-back draught shutters (AO) which close when the fans are not running and prevent back draughts into the ventilation ducts or locality. The dimension lengths of MGO ducts vary from mm to cater for different wall thicknesses. EXHAUSTO TGR (round) and TGK (square) roof ducts are specially designed (operationally and architecturally) for use with EXHAUSTO roof fans. TGR/TGK The roof ducts achieve optimal sound attenuation with very little pressure drop. The roof fan is mounted directly on top of the roof duct. An EXHAUSTO FLD diffuser can be mounted on the bottom, or the duct can connect to the duct system via a spiro tube. This optimal solution achieves minimal pressure drop and a low noise level even with large air volumes. TGR and TGK ducts come with anti-back draught shutters AOR as standard. EXHAUSTO TGR and TGK roof ducts are available in six sizes and three different lengths, with flashing to suit roof pitch. EXHAUSTO A/S Odensevej 76 DK-5550 Langeskov Tel Fax exhausto@exhausto.dk