ROOF FAN ROOFMASTER STEC NON-INSULATED VERSION TECHNICAL CATALOGUE
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1 ROOF FAN ROOFMASTER STEC NON-INSULATED VERSION TECHNICAL CATALOGUE
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3 Roofmaster STEC non-insulated version - Technical Catalogue 3 CONTENTS GENERAL DESCRIPTION Application/specification...4 Features...4 Material and design...4 Motor and impeller...4 Wiring charts...4 Speed control...4 EC controller...4 Easy installation and service... 5 Demand controlled ventilation... 5 Accessories... 5 PERFORMANCE DATA AND TABLES... 6 FAN CHART EXPLANATION AND DEFINITIONS...7 TECHNICAL DATA INCL. DIMENSIONS STEC STEC STEC STEC STEC STEC STEC STEC ACCESSORIES INCLUDED IN FAN PACKAGES SAFE Safety switch...24 EC controller...24 ACCESSORIES TO BE ORDERED SEPARATELY BOGA Roof curb with insulation EI STEZ-01 Flat roof socket STEZ-02 Flexible connection...27 STEZ-04 Mounting plate...27 STEZ-05 Back draught shutter...27 STEZ-07 Inlet sound attenuator...28 STYZ Potentiometer...28 WIRING DIAGRAMS Wiring diagram A, STEC Wiring diagram B, STEC PRODUCT AND ACCESSORY CODES...31
4 4 Roofmaster STEC non-insulated version - Technical Catalogue GENERAL DESCRIPTION APPLICATION/SPECIFICATION STEC non-insulated roof fan is designed to be used for the extraction of exhaust air and other non-aggressive gases where low energy consumption, simple construction and demand controlled ventilation are required. It can be installed directly on the concrete or alternatively on a roof curb. The existing unit can be exchanged by using an installation frame, which is always included as standard in the delivery of STEC roof fan (sizes ). STEC is equipped with high efficiency EC-motors with integrated speed controller. The plastic impeller is optimized for high efficiency. The casing and motor-impeller-combination can be opened for easy service and maintenance. The fan is discharging vertically. SPECIFICATION Product type: Impeller type: Insulation: Discharge: Temperature: STEC non-insulated roof fan Plastic impeller with integrated EC motor Fan casing is non-insulated Vertical Ambient temperature up to + 60 C (see motor table for each size) Environment class: C4 (EN ISO ) Motor: Electrical supply Speed control: Regulations complied: EC outer rotor motor Sizes : 1~230 VAC 50 Hz Sizes : 3~400 VAC 50 Hz 0-10 V signal Using separate control accessories 1253/2014 for roof fan as NRVU/UVU 327/2011 for motorized impeller inside All components are designed and manufactured in accordance with quality assurance system ISO 9001 and the environmental management system ISO The roof fan is CE marked. FEATURES 8 sizes Volume flow rate up to 4.5 m 3 /s ( m 3 /h) Max pressure rise up to Pa MATERIAL AND DESIGN The casing is made of black pre-painted galvanized sheet metal or aluminum and zinc coated sheet metal. Surface treatment meets requirements for environmental class C4. The fan discharges upwards. MOTOR AND IMPELLER The fans use external rotor EC motors with integrated speed controller. The motor is in the airstream and is cooled by the exhaust air. The impeller is made of plastic and has backward curved blades. The IP class for the motor is IP 54, insulation class is B and all motors are equipped with thermal overload protector (TOP) that is internally connected. Fan can be equipped with an EC controller. All fans are balanced to meet the vibration level of 4.5 mm/s RMS ISO WIRING CHARTS Wiring charts are presented on pages SPEED CONTROL Motor speed can be controlled using analog 0-10 V signal or using an EC controller. EC CONTROLLER The EC controller is installed inside the casing (not available for size 190). It can be ordered as a ready-to-be-used part, in which case it is included in the fan ordering code (see codes on page 31). The EC controller is, however, not automatically included in the standard version of STEC so please check the ordering codes. The EC controller includes the following operations: Single-speed use: speed is set using Low potentiometer Two-speed operation is set using Low and High potentiometers Relay output can be selected for either alarm or running indication 0-10 V control from BMS (Building Management System)
5 Roofmaster STEC non-insulated version - Technical Catalogue 5 EASY INSTALLATION AND SERVICE Installation is presented in the installation manual and various control possibilities in a separate section of this catalogue. DEMAND CONTROLLED VENTILATION Demand controlled ventilation, DCV, is required by ErP Regulations. In practise this means that all roof fans shall be equipped with a speed controller. STEC roof fan range with EC motor has an integrated speed controller and thus the whole fan range is fully ErP compliant also in this sense. Using DCV it is easy to adjust the correct fan speed and optimize the energy consumption. Different sensors and controllers can be connected to the speed control system. STEC can be installed on the concrete or on a roof curb using an installation frame. The existing unit can be exchanged by using an installation frame, which is always included as standard in the delivery of STEC roof fan (except the smallest size 190). The fan is equipped as standard with an opening mechanism that can be locked to open position. The impeller can be easily cleaned, if necessary. REPLACING THE EXISTING ROOF FAN ACCESSORIES INCLUDED IN FAN PACKAGES See the roof fan product code: accessory package (bbb) on page = STEC fan basic version 1 = STEC fan including safety switch (not wired, the cable is not included in delivery) 2 = STEC fan including EC controller (connected, the cable included) and safety switch (not wired, the cable is not included in delivery). Not available for size 190. ACCESSORIES TO BE ORDERED SEPARATELY BOGA Roof curb STEZ-01 Flat roof socket STEZ-02 Flexible connection STEZ-04 Mounting plate STEZ-05 Back draught shutter STEZ-07 Inlet sound attenuator STYZ Potentiometer Size 190 Sizes STEC roof fans in sizes are equipped with a mounting frame as standard. The mounting frame can be installed on the existing base made of concrete or on a roof curb. STEC roof fan size 190 is delivered without the mounting frame. The fan can be installed on the concrete or on a roof curb. As the fans have as standard the possibility to adjust the fan speed it is easy to replace the existing fan and adjust the air flow.
6 6 Roofmaster STEC non-insulated version - Technical Catalogue PERFORMANCE DATA AND TABLES NON-INSULATED ROOFMASTER STEC Static Pressure (Pa) STEC-225 STEC-355 STEC-190 STEC-310 STEC-400 STEC-450 STEC-500 STEC m 3 /h MAX VOLUME FLOW RATE m 3 /s AS FUNCTION OF STATIC PRESSURE Size 0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 m 3 /s 5 Pressure (Pa) STEC STEC STEC STEC STEC Volume flow rate STEC STEC STEC Volume flow rate m 3 /s MAX VOLUME FLOW RATE m 3 /h AS FUNCTION OF STATIC PRESSURE Size Pressure (Pa) STEC STEC STEC STEC STEC STEC STEC STEC Volume flow rate m 3 /h
7 Roofmaster STEC non-insulated version - Technical Catalogue 7 FAN CHART EXPLANATION AND DEFINITIONS SYMBOLS v Δp s (Pa) q v (m³/h) w 1550 r/min u 55 46% 60 db(a) y x z 30 u q v Volume flow rate m 3 /s, m 3 /h v Dp s Fan static pressure Pa w Fan max speed r/min x h Overall static efficiency at max r/min % y L wa 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) z q nom Nominal flow rate See Example on this page db(a) db db db (m³/s) 0 0 0,1 0,2 0,3 0,4 0,5 0,6 q v (m 3 /s) u SOUND DATA The total A-weighted sound power level to surroundings, L wa, can be read in the fan chart. The correction coefficients K oct by octave bands can be read in the table below the fan chart. 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: THE SYMBOLS USED: Fan code = fan type and size. Min r/min = minimum fan speed where the sound power level correction K oct is still applicable. Max r/min = maximum fan speed where the sound power level correction K oct is still applicable. Correction = Sound power level correction factors K oct for the octave bands 63 to 8000 Hz. FAN DATA The fan data is presented using fan-motor-speed controller combination. For nominal flow rate, see each size. The fan data is presented at density 1.2 kg/m 2 and tested according to ISO 5801 and ISO L pa = L wa L EXAMPLE Sound pressure level L pa at 10 m distance: Operation point 0,3 m 3 /s / 150 Pa L wa = 61 db(a) according to fan chart L pa at 10 m: 61 db(a) 28 db(a) = 33 db(a) The operation point and L wa are presented in the above fan chart and table.
8 8 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-190 FAN DATA q v (m³/h) r/min % Δ p s (Pa) db(a) ,05 0,1 0,15 0,2 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Fan code Sound path Min r/min Max r/min Correction K oct (db) in octave band mid-frequency (Hz) Surroundings Surroundings Surroundings STEC-190 Surroundings Inlet duct Inlet duct Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
9 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-190 DIMENSIONS AND WEIGHT Weight: 8 kg Roof free outlet area: m 2 No mounting frame is included for size 190. PRODUCT CODE Roof Fan Size (a) 245 Motor type (bbb) 1 = 1-phase motor Insulation (bbb) 1 = non-insulated version STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Potentiometer Nom. power kw STEC Supply voltage 1~ VAC 50/60 Hz Max Speed r/min BOGA c-2 STYZ Nom. current A Temperature range C Accessory package (bbb) 0 = basic 1 = including safety switch Material (c) 1 = painted galvanised sheet metal, black Construction (d) 0 = standard Generation (e) WIRING A STEC c-0-1 (fan packages 0 & 1) See corresponding wiring diagram on pages
10 10 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-225 FAN DATA q v (m³/h) r/min % Δp s (Pa) db(a) ,05 0,1 0,15 0,2 0,25 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m 3 /s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-225 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
11 Roofmaster STEC non-insulated version - Technical Catalogue 11 TECHNICAL DATA - STEC-225 DIMENSIONS AND WEIGHT Ø Weight: 10 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 1 = 1-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 1~ VAC 50/60 Hz BOGA-01-1-c-2 STEZ-01-1 STEZ-02-1 STEZ-04-1 STEZ-05-1 STEZ-07-1 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
12 12 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-310 FAN DATA q v (m³/h) r/min % Δp s (Pa) db(a) ,1 0,2 0,3 0,4 0,5 0,6 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-310 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
13 Roofmaster STEC non-insulated version - Technical Catalogue 13 TECHNICAL DATA - STEC-310 DIMENSIONS AND WEIGHT Ø Weight: 16 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 1 = 1-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 1~ VAC 50/60 Hz BOGA-02-1-c-2 STEZ-01-2 STEZ-02-2 STEZ-04-2 STEZ-05-2 STEZ-07-2 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
14 14 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-355 FAN DATA q v (m³/h) r/min % Δp s (Pa) db(a) ,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-355 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
15 Roofmaster STEC non-insulated version - Technical Catalogue 15 TECHNICAL DATA - STEC-355 DIMENSIONS AND WEIGHT Ø Weight: 22 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 1 = 1-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 1~ VAC 50/60 Hz BOGA-03-1-c-2 STEZ-01-3 STEZ-02-3 STEZ-04-3 STEZ-05-3 STEZ-07-3 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
16 16 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-400 FAN DATA q v (m³/h) r/min % 1200 Δp s (Pa) db(a) ,2 0,4 0,6 0,8 1 1,2 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-400 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
17 Roofmaster STEC non-insulated version - Technical Catalogue 17 TECHNICAL DATA - STEC-400 DIMENSIONS AND WEIGHT Ø Weight: 27 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 1 = 1-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 1~ VAC 50/60 Hz BOGA-04-1-c-2 STEZ-01-4 STEZ-02-4 STEZ-04-4 STEZ-05-4 STEZ-07-4 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
18 18 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-450 FAN DATA q v (m³/h) r/min % Δp s (Pa) db(a) ,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-450 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
19 Roofmaster STEC non-insulated version - Technical Catalogue 19 TECHNICAL DATA - STEC-450 DIMENSIONS AND WEIGHT Ø Weight: 36 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 3 = 3-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 3~ VAC 50/60 Hz BOGA-05-1-c-2 STEZ-01-5 STEZ-02-5 STEZ-04-5 STEZ-05-5 STEZ-07-5 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
20 20 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-500 FAN DATA q v (m³/h) r/min % Δp s (Pa) db(a) ,5 1 1,5 2 2,5 3 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-500 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
21 Roofmaster STEC non-insulated version - Technical Catalogue 21 TECHNICAL DATA - STEC-500 DIMENSIONS AND WEIGHT Ø Weight: 56 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 3 = 3-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 3~ VAC 50/60 Hz BOGA-06-1-c-2 STEZ-01-6 STEZ-02-6 STEZ-04-6 STEZ-05-6 STEZ-07-6 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
22 22 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-630 FAN DATA q v (m³/h) r/min % 600 Δp s (Pa) db(a) q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 4.0 m³/s. The fan is classified as NRVU-UVU. SOUND DATA Correction K oct (db) in octave band mid-frequency (Hz) Fan code Sound path Min r/min Max r/min Surroundings Surroundings STEC-630 Inlet duct Inlet duct For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.
23 Roofmaster STEC non-insulated version - Technical Catalogue 23 TECHNICAL DATA - STEC-630 DIMENSIONS AND WEIGHT Ø Weight: 82 kg Roof free outlet area: m 2 Mounting frame (included in delivery). PRODUCT CODE Roof Fan Size (a) Motor type (bbb) 3 = 3-phase motor Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Construction (d) 0 = standard Generation (e) STEC b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Flat roof socket Flexible connecton Adapter plate Back draught shutter Inlet sound attenuator Potentiometer Nom. power kw STEC WIRING Supply voltage 3~ VAC 50/60 Hz BOGA-07-1-c-2 STEZ-01-7 STEZ-02-7 STEZ-04-7 STEZ-05-7 STEZ-07-7 Max Speed r/min STYZ A STEC c-0-1 (fan packages 0 & 1) B STEC c-0-1 (fan package 2) Nom. current A Temperature range C See corresponding wiring diagram on pages
24 24 Roofmaster STEC non-insulated version - Technical Catalogue ACCESSORIES INCLUDED IN FAN PACKAGES SAFE - SAFETY SWITCH The safety isolation switch has been tested according to IEC It can be ordered and supplied as a part of the roof fan, not wired. The cable is not included in the delivery. See corresponding wiring diagram on pages Please see the fan ordering codes. EC CONTROLLER With a speed controller it is possible to get a single-speed or a two-speed operation. The relay output provides with alarm or running indication that can be selected by the DIP switch. Speed can also be controlled by 0-10 V via BMS (Building Management System). The EC controller can be ordered and supplied as a part of the roof fan, connected to cable. It is not available for size 190. Please see the fan ordering codes. Internal cabling is carried out at the factory. Information for the user is available in the installation manual. Modbus RTU communication with EC motor is still possible in fan sizes
25 Roofmaster STEC non-insulated version - Technical Catalogue 25 ACCESSORIES TO BE ORDERED SEPARATELY Ø B E C C / 1250 A Size 07 (for STEC-630) F D Height of the duct connection: 60 mm Ø160 Size 005 (for STEC-190) G Sizes (for STEC ) BOGA - ROOF CURB WITH INSULATION EI30 The BOGA consists of a sheet metal duct, insulated inside with 50 mm thick mineral wool mat. The insulation is backed with perforated sheet metal. The roof curb is equipped with two cable glands and one built-in conduit, which can accommodate two cables for electrical connection to the roof fan. Adjustable mounting brackets, which can be set to suit the pitch of the roof, are fitted to the outside of the roof curb. There are shutter plates located inside the roof curb. Roof fan can be installed on the roof curb using the mounting frame that is included in the roof fan delivery as standard. The roof curb is made of aluminum and zinc coated sheet metal. DIMENSIONS AND WEIGHT Roof curb, EI30 Fan size (aa) 005, 01, 02, 03, 04, 05, 06, 07 Back draught shutter (b) 1 = with shutter Height and insulation class (c) 1 = 980 mm, EI30, 50 mm insulation 2 = 1230 mm, EI30, 50 mm insulation Generation (d) 2 BOGA-aa-1-c-2 Model A (c = 1) A (c = 2) B C D E F G W1 (kg) W2 (kg) BOGA-01-1-c BOGA-02-1-c BOGA-03-1-c BOGA-04-1-c BOGA-05-1-c BOGA-06-1-c BOGA-07-1-c ) ) See separate illustration for size 630. W1 = Weight in kg for A (c = 1) W2 = Weight in kg for A (c = 2)
26 26 Roofmaster STEC non-insulated version - Technical Catalogue ACCESSORIES TO BE ORDERED SEPARATELY BOGA SOUND ATTENUATION SOUND ATTENUATION WHEN USING BOGA EI30, L = 980 Model Octave band mid frequency (Hz) BOGA BOGA BOGA BOGA BOGA BOGA BOGA SOUND ATTENUATION WHEN USING BOGA EI30, L = 1230 Model Octave band mid frequency (Hz) BOGA BOGA BOGA BOGA BOGA BOGA BOGA FLAT ROOF SOCKET STEZ-01 The roof socket STEZ-01 is made of corrosion resistant fibre glass. It is designed for mounting on flat roofs or roofs with a maximum pitch of 15. For saddle roofs a BOGA roof duct is available. The roof socket is equipped with a connection flange according to DIN , part 1. The roof is secured to the flat roof socket by means of 4 screws. z x d ØD1 ØD Model D D1 B B1 H H1 z x d Weight (kg) STEZ x7 4.5 STEZ x7 4.5 STEZ x STEZ x STEZ x STEZ x STEZ x B B1 H1 H
27 Roofmaster STEC non-insulated version - Technical Catalogue 27 ACCESSORIES TO BE ORDERED SEPARATELY FLEXIBLE CONNECTION STEZ-02 The flexible connection STEZ-02 is used to disconnect the fan from the ductwork. The flanges are according to DIN , part 1 z x d ØD1 Model D D1 D2 H z x d Weight (kg) STEZ x7 0.7 STEZ x7 2.0 STEZ x STEZ x STEZ x STEZ x STEZ x H ØD2 ØD STEZ-04 - MOUNTING PLATE To be used under the BOGA roof curb to enable a circular duct connection. STEZ-04 Mounting plate can be used with BOGA EI30 and inlet sound attenuator STEZ-07 but not together with BOGA EI120. ØD1 ØD Model ØD ØD1 B z x d Weight, kg STEZ x M8 2.2 STEZ x M8 2.2 STEZ x M8 3.6 STEZ x M8 4.6 STEZ x M8 6.1 STEZ x M8 9.5 STEZ x M z x d B BACK DRAUGHT SHUTTER STEZ-05 Back draught shutter prevents outdoor air to stream into the duct system while the roof fan is off. The back draught shutter is made of aluminium and zink coated sheet steel and the flanges are according to DIN , part 1. z x d ØD2 ØD1 Model D D1 D2 H z x d Weight (kg) STEZ x7 1.9 STEZ x7 3.4 STEZ x STEZ x STEZ x STEZ x STEZ x H ØD
28 28 Roofmaster STEC non-insulated version - Technical Catalogue ACCESSORIES TO BE ORDERED SEPARATELY STEZ-07 - INLET SOUND ATTENUATOR The STEZ-07 sound attenuator is used to attenuate the sound level to the duct on the inlet side. It is made of aluminium and zinc coated sheet metal. The baffles inside are made of mineral wool and they are covered by fibre class film. The inlet of the sound attenuator is square. If the sound attenuator is supposed to be connected to a circular duct, a separate mounting plate STEZ-04 can be used under the STEZ-07. Size 07 U E Model B B1 E U H Weight (kg) STEZ STEZ STEZ STEZ STEZ STEZ STEZ ) ) See separate illustration for size 7. B B1 H Sizes SOUND ATTENUATION WHEN USING STEZ-07 Model Octave band mid frequency (Hz) STEZ STEZ STEZ STEZ STEZ STEZ STEZ PRESSURE LOSS IN PA p t, Pa STEZ-07-1, STEZ-07-2 Q v, m 3 /s STEZ-07-3 STEZ STEZ-07-5 STEZ-07-6 STEZ STYZ POTENTIOMETER The potentiometer is used to control the speed of the EC-motor. The potentiometer needs a supply 10 VDC and gives a stepless output signal of 0-10 V DC. TECHNICAL FEATURES: Supply voltage: 10 VDC Output signal: 0-10 VDC Resistance: 10 kω (ohm) IP rating: IP 20
29 Roofmaster STEC non-insulated version - Technical Catalogue 29 WIRING DIAGRAM A (FOR FAN PACKAGES 0 & 1) STEC STEC STEC
30 30 Roofmaster STEC non-insulated version - Technical Catalogue WIRING DIAGRAM B (FOR FAN PACKAGE 2) STEC
31 Roofmaster STEC non-insulated version - Technical Catalogue 31 PRODUCT AND ACCESSORY CODES PRODUCT CODE Roof Fan STEC-aaa-bbb-c-d-1 ACCESSORIES Roof curb with insulation EI30 BOGA-aaa-b-c-d Fan size (a) 190, 225, 310, 355, 400, 450, 500, 630 Size (aaa) 005, 01, 02, 03, 04, 05, 06, 07 Motor type (bbb) 1 = 1-phase motor (sizes ) 3 = 3-phase motor (sizes ) Back draught shutter (b) 1 = with shutter Insulation (bbb) 1 = non-insulated version Accessory package (bbb) 0 = basic 1 = including safety switch 2 = including safety switch and EC controller Not available for size 190 Height and insulation class (c) 1 = 980 mm, EI30, 50 mm insulation 2 = 1230 mm, EI30, 50 mm insulation Generation (d) 2 Flat roof socket STEZ-01-b Material (c) 1 = painted galvanised sheet metal, black 2 = Al/Zn coated sheet metal Size (a) 1, 2, 3, 4, 5, 6, 7 Construction (d) 0 = standard Generation (e) Flexible connection Size (a) 1, 2, 3, 4, 5, 6, 7 STEZ-02-b Mounting plate STEZ-04-b Size (a) 1, 2, 3, 4, 5, 6, 7 Back draught shutter STEZ-05-b Size (a) 1, 2, 3, 4, 5, 6, 7 Inlet sound attenuator STEZ-07-b Size (b) 1, 2, 3, 4, 5, 6, 7 Potentiometer STYZ
32 FG_DC_10076GB_Roofmaster STEC non insulated_te_ _r0 Copyright 2017 FläktGroup FläktGroup is the European market leader for smart and energy efficient Indoor Air and Critical Air solutions to support every application area. We offer our customers innovative technologies, high quality and outstanding performance supported by more than a century of accumulated industry experience. The widest product range in the market, and strong market presence in 65 countries worldwide, guarantee that we are always by your side, ready to deliver Excellence in Solutions. STEC PRODUCT FUNCTIONS BY FLÄKTGROUP Air Treatment Air Movement Air Diffusion Air Distribution Air Filtration Air Management Air Conditioning & Heating Controls Service» Learn more on or contact one of our offices ROOFMASTER STEC
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