ROOFMASTER STEF-ATEX ROOF FAN

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1 Air Comfort Air movement Roof fans ROOFMASTER STEF-ATEX ROOF FAN» Technical CATALOGuE

2 2 STEF-ATEX Roofmaster - Technical Catalogue Contents General description Application/specification... 3 Features... 3 Electrical supply... 3 Ambient temperature range... 3 Material and design... 3 Motor and impeller... 3 Easy installation... 3 Quiet operation Performance Data...4 Performance Table...4 Fan Chart Explanation and definitions... 5 Technical data incl. dimensions STEF STEF STEF STEF Component included in fan delivery MORA Mounting frame...10 BOGA Roof curb with insulation STEZ-04 Mounting plate...12 SAFE Safety switch STYR Frequency converter...13 Important information ATEX Directive 14/34/EU...14 Wiring Star connection...15 Product code

Roofmaster - Technical Catalogue STEF-ATEX 3 General Description Application/specification The equipment is a roof fan designed for use as an exhaust fan in ventilation systems confirming with ATEX

3 Roofmaster - Technical Catalogue STEF-ATEX 3 General Description Application/specification The equipment is a roof fan designed for use as an exhaust fan in ventilation systems confirming with ATEX Directive 14/34/EU. The fan is driven by a flameproof motor of type Ex de IIB T4, fan classified to be used in explosive atmosphere as follows: Fan group: Group IIB Category: Category 3 Zone: 2 Delivered medium: Only gas excluding hydrogen Gas explosion: Generally IIB Medium temperature: Max +40 C Temperature class: T3 The STEF-ATEX fan is only intended for conveyance of air in zone 2 category 3 explosive atmospheres. The conveyance of solid matter is not permitted. STEF-ATEX roof fans can be equipped with a frequency converter for speed control. The frequency converter is always delivered loose. The capacity measurement has been performed according to ISO 5801:07 and the sound power level to surroundings according to ISO 3741:1999. The wiring of the motor and frequency converter shall be performed according to ATEX regulations and using ATEX certified components, if any needed. Features 4 sizes Volume flow up to 1.3 m³/s (4 0 m³/h) Max pressure rise up to 480 Pa Ex de motor for frequency converter use Low sound level High efficiency ATEX Group IIB T3 Category 3G Electrical supply 3~400 V 50 Hz Ambient temperature range C C Material and design The fan casing is made of black pre-painted galvanized sheet or aluminium and zinc coated sheet steel. STEF-ATEX can be used in industrial areas or close to the sea because the surface treatment meets the requirements of environmental class C4 (EN ISO ). The fan is insulated inside against noise. The fan discharges air vertically. Motor and impeller Flameproof motors type Ex de IIB T4 are used together with a frequency converter. The motor is equipped with a surface temperature sensor. The motor is outside of the air steam. Maximum exhaust temperature is +40 C. Impeller is made of galvanized sheet steel and has backward curved blades. The impeller is dynamically balanced to Class Q6.3 in accordance with ISO Speed control Fan speed can be controlled by using a frequency converter and Ex de motor. Frequency converter shall not be integrated inside of the roof fan. Special safety isolator shall be used. Easy installation and service STEF-ATEX can be installed by using a mounting frame MORA on a roof curb BOGA or directly on to the concrete. Mounting frame MORA is always included in the delivery. The fan is equipped with opening hinges as standard. The impeller and duct can be easily cleaned. The roof of the fan can be removed to perform maintenance of the motor. Quiet operation The inside of the fan casing and the side plates of the motor compartment have sound insulation. The fan itself has very low sound values. By using DCV (demand controlled ventilation) the operation point can be adjusted to optimize also sound levels. BOGA Roof curb SAFE Safety switch STEZ-04 Mounting plate STYR Frequency converter

4 4 STEF-ATEX Roofmaster - Technical Catalogue Performance data, Performance table ROOFMASTER STEF-ATEX 3 phase Statiskt tryck, Pa STEF-4 STEF-3 STEF-2 STEF m 3 /h ,2 0,4 0,6 0,8 1,0 1,2 Luftflöde m 3 /s Air flow m 3 /h as function of static pressure Pressure (Pa) Fan size STEF ,25 0,216 0,176 0,11 STEF ,465 0,431 0,387 0,331 0,247 0,064 STEF ,968 0,928 0,882 0,828 0,765 0,689 0,596 0,475 0,257 STEF ,643 0,566 0,467 0,313 STEF ,26 1,9 1,155 1,098 1,034 0,964 0,882 0,784 0,658 0,474 STEF ,823 0,748 0,651 0,519 0,268 Airflow m 3 /h Air flow m 3 /s as function of static pressure Pressure (Pa) Fan size STEF STEF STEF STEF STEF STEF Airflow m 3 /s

5 Roofmaster - Technical Catalogue STEF-ATEX 5 Fan chart explanation and definitions Symbols ❷ p s (Pa) q v (m³/h) r/min % ❸ ❹ 65 db(a) ❶ ❷ ❸ ❹ q v Airflow m 3 /s Dp s Fan static pressure Pa h L wa Overall effeciency (impeller, motor and rotation speed control) at max rotation speed % A-weighted total sound level to surroundings L woct Sound power level by octave bands (without A-weighting) K oct ΔL Correction when diving into different octave bands Remote attenuation (given values calculated for an ideal case in a halfspace) db(a) db db db ,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 q v (m 3 /s) ❶ Sound data The total A-weighted sound power level to surroundings, L wa, can be read in the fan chart. The correction coefficients by octave bands can be read in the chart on the right. The sound power level by octave band to the duct or to the surroundings (without A-weighting) can be obtained by using the following formula: L woct = L wa + K oct Sound pressure level and remote attenuation Distance L (m) Attenuation L (db) The total sound pressure level to surroundings at different distances can be estimated using the following formula: L pa = L wa L FAN DATA The fan data is presented using fan-motor-frequency converter combination.

6 6 STEF-ATEX Roofmaster - Technical Catalogue Technical data - STEF-1 STEF q v (m³/h) r/min % 25 p s (Pa) db(a) ,05 0,1 0,15 0,2 0,25 q v (m 3 /s) Sound data Fan code Sound path Min r/min Max r/min Correction K oct (db) Octave band mid-frequency (Hz) STEF-1 Surroundings STEF-1 To the inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 6. Motor data Motor nominal data at 50 Hz STYR Fan code Speed, r/min Output, kw Voltage, V Current, A 1~230 V 3~400 V STEF c , VY 0,77 STYR-13-1-S-0-1 STYR-14-3-S-0-1 Product code Roof Fan STEF-1-bbb-c-dd-5 Dimensions and weight Size (a) Motor type (bbb) 0 = three phase motor Number of poles (bbb) Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet steel Version (dd) 91 = Ex de-motor (IIB, T4, IP55, insulation class F) Generation (e) Weight: 31 kg Roof curb 1) BOGA (standard version 980 mm EI30) Mounting plate STEZ-04-1 Safety switch SAFE Frequency converter STYR-aa-b-S-0-1 (see motor table) Mounting frame MORA is automatically included in STEF-ATEX delivery 1) For other BOGA versions please refer to page

7 Roofmaster - Technical Catalogue STEF-ATEX 7 Technical data - STEF-2 STEF q v (m³/h) r/min % p s (Pa) db(a) ,1 0,2 0,3 0,4 0,5 q v (m 3 /s) Sound data Fan code Sound path Min r/min Max r/min Correction K oct (db) Octave band mid-frequency (Hz) STEF-2 Surroundings STEF-2 To the inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 6. Motor data Motor nominal data at 50 Hz STYR Fan code Speed, r/min Output, kw Voltage, V Current, A 1~230 V 3~400 V STEF c , VY 0,77 STYR-13-1-S-0-1 STYR-14-3-S-0-1 Product code Roof Fan STEF-2-bbb-c-dd-5 Dimensions and weight Size (a) Motor type (bbb) 0 = three phase motor Number of poles (bbb) Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet steel Version (dd) 91 = Ex de-motor (IIB, T4, IP55, insulation class F) Generation (e) Weight: 31 kg Roof curb 1) BOGA (standard version 980 mm EI30) Mounting plate STEZ-04-2 Safety switch SAFE Frequency converter STYR-aa-b-S-0-1 (see motor table) Mounting frame MORA is automatically included in STEF-ATEX delivery 1) For other BOGA versions please refer to page

8 8 STEF-ATEX Roofmaster - Technical Catalogue Technical data - STEF-3 STEF q v (m³/h) STEF q v (m³/h) r/min r/min p s (Pa) % 65 db(a) p s (Pa) db(a) 29% ,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 q v (m 3 /s) Sound data Fan code Sound path Min r/min Max r/min Correction K oct (db) Octave band mid-frequency (Hz) STEF-3 Surroundings STEF-3 To the inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 6. Motor data 0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 q v (m 3 /s) Fan code Motor nominal data at 50 Hz STYR Speed, r/min Output, kw Voltage, V Current, A 1~230 V 3~400 V STEF c , VY 1,4 STYR-16-1-S-0-1 STYR-16-3-S-0-1 STEF c , VY 1,3 STYR-14-1-S-0-1 STYR-14-3-S-0-1 Product code Roof Fan STEF-3-bbb-c-dd-5 Dimensions and weight Size (a) Motor type (bbb) 0 = three phase motor Number of poles (bbb) Weight: 45 kg Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet steel Version (dd) 91 = Ex de-motor (IIB, T4, IP55, insulation class F) Generation (e) Roof curb 1) BOGA (standard version 980 mm EI30) Mounting plate STEZ-04-3 Safety swich SAFE Frequency converter STYR-aa-b-S-0-1 (see motor table) Mounting frame MORA is automatically included in STEF-ATEX delivery 1) For other BOGA versions please refer to page

9 Roofmaster - Technical Catalogue STEF-ATEX 9 Technical data - STEF-4 STEF p s (Pa) q v (m³/h) r/min % db(a) STEF p s (Pa) q v (m³/h) r/min % db(a) ,2 0,4 0,6 0,8 1 1,2 1,4 q v (m 3 /s) Sound data Fan code Sound path Min r/min Max r/min Correction K oct (db) Octave band mid-frequency (Hz) STEF-4 Surroundings STEF-4 To the inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 6. Motor data 0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 q v (m 3 /s) Fan code Motor nominal data at 50 Hz STYR Speed, r/min Output, kw Voltage, V Current, A 1~230 V 3~400 V STEF c , VY 1,8 STYR-16-1-S-0-1 STYR-16-3-S-0-1 STEF c , VY 1,3 STYR-14-1-S-0-1 STYR-14-3-S-0-1 Product code Roof Fan STEF-4-bbb-c-dd-5 Dimensions and weight Size (a) Motor type (bbb) 0 = three phase motor Number of poles (bbb) Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet steel Version (dd) 91 = Ex de-motor (IIB, T4, IP55, insulation class F) Generation (e) Weight: 50 kg Roof curb 1) BOGA (standard version 980 mm EI30) Mounting plate STEZ-04-4 Safety switch SAFE Frequency converter STYR-aa-b-S-0-1 (see motor table) Mounting frame MORA is automatically included in STEF-ATEX delivery 1) For other BOGA versions please refer to page

10 10 STEF-ATEX Roofmaster - Technical Catalogue Component included in fan delivery, MORA - Mounting frame The mounting frame is designed for securing the roof fan to an in-situ built chimney or other type of concrete. The roof fan is secured to the mounting frame the same way as to roof curb BOGA with four screws. The mounting frame is made of aluminium and zink coated sheet steel. Mounting frame MORA is automatically included as standard in the delivery of STEF-ATEX. 15 A1 A B Mounting frame MORA-a-2 C D Size (a) 1, 2, 3, 4 (equivalent to fan size) Version = 2 Dimensions and weight MORA size Weight, kg A A1 B C D 1, BOGA - ROOF CURB WITH INSULATION EI30 The BOGA consists of a sheet steel duct, insulated on the inside with 50 mm thick mineral wool mat. The insulation is backed with perforated sheet metal. The duct is equipped with two cable glands and one built-in cable conduit which can accommodate two cables for electrical connection to the power roof ventilator. Adjustable mounting brackets, which can be set to suit the pitch of the roof, are fitted to the outside of the roof duct. The roof fan is installed on the BOGA roof curb by using a mounting frame MORA that is included as standard in delivery. The BOGA EI30 is made of aluminum and zinc coated sheet steel. Roof duct, EI30 boga-aa-2-c-1 Size (aa) 01, 02, 03, 04 Back draught damper (b) 2 = without shutter Model (c) 1 = 980 mm, EI30, 50 mm insulation 3 1) = 980 mm, EI30, 50 mm insulation, size 3 2 = 1250 mm, EI30, 50 mm insulation 8 1) = 1250 mm, EI30, 50 mm insulation, size 3 Generation 1) BOGA versions c = 3 or c = 8 only apply for size 3.

11 Roofmaster - Technical Catalogue STEF-ATEX 11 BOGA - ROOF CURB WITH INSULATION, EI1 The BOGA consists of a sheet steel duct, insulated on the inside with mm thick mineral wool mat. The inner duct is made of sheet steel, material thickness s = 1,25 mm. The insulation is backed with perforated sheet metal. The duct is equipped with two cable glands and one built-in cable conduit which can accommodate two cables for electrical connection to the power roof ventilator. Adjustable mounting brackets, which can be set to suit the pitch of the roof, are fitted to the outside of the roof duct. The roof fan is installed on the BOGA roof curb by using a mounting frame MORA that is included as standard in delivery. The BOGA EI1 is made of aluminum and zinc coated sheet steel. Roof duct, EI1 Size (aa) 01, 02, 03, 04 Back draught damper (b) 2 = without shutter Model (c) 5 = 980 mm, EI1, mm insulation 6 = 1250 mm, EI1, mm insulation Generation boga-aa-2-c-2 Dimensions and weight EI30, 50 mm insulation Model A (c = 1, 3) A (c = 2, 8) B C D E F G W1 (kg) W2 (kg) BOGA-01-2-c BOGA-02-2-c BOGA-03-2-c BOGA-04-2-c W1 = Weight in kg for A (c = 1 or 3) W2 = Weight in kg for A (c = 2 or 8) EI1, mm insulation Model A (c = 5) A (c = 6) B C D E F G W5 (kg) W6 (kg) BOGA-01-2-c BOGA-02-2-c BOGA-03-2-c BOGA-04-2-c W5 = Weight in kg for A (c = 5) W6 = Weight in kg for A (c = 6) Sound attenuation when using BOGA EI30, L = 980 Model Octave band mid frequency (Hz) BOGA 01 b c BOGA 02 b c BOGA 03 b c BOGA 04 b c Sound attenuation when using BOGA EI30, L = 1250 Octave band mid frequency (Hz) Model BOGA 01 b c BOGA 02 b c BOGA 03 b c BOGA 04 b c

12 STEF-ATEX Roofmaster - Technical Catalogue Mounting plate - STEZ-04 Model D D1 B z x d Weight, kg STEZ-04-1 182 212 435 6 x M6 2,2 STEZ-04-2 253 283 435 6 x M6 2,2 STEZ-04-3 358 392 548 8 x M8 3,6

12 12 STEF-ATEX Roofmaster - Technical Catalogue Mounting plate - STEZ-04 Model D D1 B z x d Weight, kg STEZ x M6 2,2 STEZ x M6 2,2 STEZ x M8 3,6 STEZ x M8 4,6 SAFE - Safety switch The safety isolation switch has been tested to IEC Safety switch is available in an ATEX version and must be delivered loose. Safety isolation switch SAFE = ATEX version, 3-pole with auxiliary contact 0 = delivered loose Version = 0

13 Roofmaster - Technical Catalogue STEF-ATEX 13 STYR - Frequency converter The frequency converter for ATEX fans is always delivered loose. Max. cable length 15 m (cable is not included in the delivery). Frequency converter STYR-aa-b-S-0-1 Size (aa) 13, 14, 16 (See STYR code in the attached table or under Technical data for each size) Supply (b) 1 = single-phase supply 230 V 3 = three-phase supply 400 V d = 0 = delivered loose Generation (e) 1 STYR-code Roof fan Frequency converter 1-phase STYR-code Frequency converter 3-phase STYR-code Max. frequency Hz STEF c-91-5 STYR-13-1-S-0-1 STYR-14-3-S-0-1 STEF c-91-5 STYR-13-1-S-0-1 STYR-14-3-S STEF c-91-5 STYR-16-1-S-0-1 STYR-16-3-S STEF c-91-5 STYR-14-1-S-0-1 STYR-14-3-S STEF c-91-5 STYR-16-1-S-0-1 STYR-16-3-S STEF c-91-5 STYR-14-1-S-0-1 STYR-14-3-S

14 14 STEF-ATEX Roofmaster - Technical Catalogue Important information Information that the end-user/client must provide to their fan manufacturer (Fläkt Woods) so that they can supply you with a fan which is compliant with the ATEX Directive 14/34/EU. Hazardous Area Detail Gas Zone Classification Inside fan casing Outside fan casing Zone 0 (cat. 1G) Not Available Not Available Zone 1 (cat. 2G) Not available Not available Zone 2 (cat. 3G) No classification Operation and fluid detail Ambient temperature C Inlet temperature C Gas Self-ignition temperature: C Explosion group: IIA IIB IIC is not available Type of Gas: Oxygen rate in gas > 21% NO YES out of EN14986 scope, needs a special approval of our Technical Director Installation conditions Inlet free ducted Outlet free ducted Information on motor type and its conditions of WORK Temperature class (Gas) T1 T2 T3 T4 T5 T6 Maximum allowed surface temperature ( C) Not available Not available Variable frequency drive: NO YES if YES, duty range: from... to... Hz Date and the seal of the company Name Signature

15 Roofmaster - Technical Catalogue STEF-ATEX 15 Wiring diagram, Product code Star connection Three phase motor, single speed Roof curb EI30 or EI1 boga-aa-b-c-d Size (aa) 01, 02, 03, 04 Back draught damper (b) 2 = without shutter Model (c) 1 = 980 mm, EI30, 50 mm insulation 3 1) = 980 mm, EI30, 50 mm insulation, size 3 2 = 1250 mm, EI30, 50 mm insulation 8 1) = 1250 mm, EI30, 50 mm insulation, size 3 5 = 980 mm, EI1, mm insulation 6 = 1250 mm, EI1, mm insulation 1) BOGA versions c = 3 or c = 8 only apply for size 3. Generation 1 = For EI30 versions 2 = For EI1 version Mounting plate STEZ-04-a E The wiring of the motor and frequency converter shall be performed according to ATEX regulations and using ATEX certified components, if any needed. Size (a) 1, 2, 3, 4 Safety isolation switch 4 = ATEX-version, 3-pole with auxiliary contact 0 = delivered loose SAFE Product code Roof Fan Size (a) 1, 2, 3, 4 Motor type (bbb) 0 = three phase motor STEF-a-bbb-c-dd-5 Version Frequency converter Size (aa) 13, 14, 16 (See STYR code in table at page 13 or under Technical data for each size) STYR-aa-b-S-0-1 Number of poles (bbb) 4, 6 (sizes 1 and 2 only with 4 pole motor) Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet steel Supply (b) 1 = single-phase supply 230 V 3 = three-phase supply 400V d = 0 = delivered loose Version (dd) 91 = Ex de-motor (IIB, T4, IP55, insulation class F) Generation (e) 1 Generation (e)

16 FWG-ROOFMASTER STEF-ATEX Technical catalogue-gb gb Copyright 17 Fläkt Woods Group We bring better air to life Roofmaster STEF-ATEX 9551GB With over a century of innovation and expertise to share with our customers, Fläkt Woods is a global leader in Air Technology products and solutions. We specialize in the design and manufacturing of a wide range of products and solutions for Air Movement, Air Treatment, Air Distribution, Air Management and Air Diffusion with focus on two major benefits Air Comfort and Fire Safety. With market presence in 65 countries we are in a unique position to be a local supplier and an international partner in our customer s projects. Our product brands such as RegAsorp, eq, eq Prime, JM Aerofoil, Econet, Veloduct, Optivent, Optimix, Econovent and Cleanvent are well-known and trusted by customers all over the world to deliver high quality and energy efficient solutions. STEF ATEX Manufacturer: Fläkt Woods Oy Kalevantie 39, FI-5 Turku, Finland Tel info@flaktwoods.com To learn more about our offering and get in contact with your nearest sales representative please visit

ROOFMASTER STEF-HT ROOF FAN

fire safety Air movement Roof Fans ROOFMASTER STEF-HT ROOF FAN» Technical CATALOGuE Contents ROOFMASTER STEF-HT...3 Performance Data...4 Performance Table...5 General description...6 Fan Chart-explanation