ROOF FAN ROOFMASTER STEC NON-INSULATED VERSION TECHNICAL CATALOGUE

ROOF FAN ROOFMASTER STEC NON-INSULATED VERSION TECHNICAL CATALOGUE

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-190... 8 STEC-225... 10 STEC-310...12 STEC-355...14 STEC-400... 16 STEC-450...18 STEC-500...20 STEC-630...22 ACCESSORIES INCLUDED IN FAN PACKAGES SAFE Safety switch...24 EC controller...24 ACCESSORIES TO BE ORDERED SEPARATELY BOGA Roof curb with insulation EI30... 25 STEZ-01 Flat roof socket... 26 STEZ-02 Flexible connection...27 STEZ-04 Mounting plate...27 STEZ-05 Back draught shutter...27 STEZ-07 Inlet sound attenuator...28 STYZ-01-51-0-1 Potentiometer...28 WIRING DIAGRAMS Wiring diagram A, STEC-190...630...29 Wiring diagram B, STEC-225...630...30 PRODUCT AND ACCESSORY CODES...31

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 225-630). 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 12944-2) Motor: Electrical supply Speed control: Regulations complied: EC outer rotor motor Sizes 190 400: 1~230 VAC 50 Hz Sizes 450 630: 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 14001. The roof fan is CE marked. FEATURES 8 sizes Volume flow rate up to 4.5 m 3 /s (16 200 m 3 /h) Max pressure rise up to 1 000 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 14694. WIRING CHARTS Wiring charts are presented on pages 29-30. 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)

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 31. 0 = 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-01-51 Potentiometer Size 190 Sizes 225-630 STEC roof fans in sizes 225-630 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 Roofmaster STEC non-insulated version - Technical Catalogue PERFORMANCE DATA AND TABLES NON-INSULATED ROOFMASTER STEC 1200 1000 800 Static Pressure (Pa) 600 400 200 STEC-225 STEC-355 STEC-190 STEC-310 STEC-400 STEC-450 STEC-500 STEC-630 0 0 2000 4000 6000 8000 10000 12000 14000 16000 m 3 /h 18000 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) 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 STEC-190 0.163 0.154 0.145 0.135 0.124 0.111 0.095 0.074 0.039 STEC-225 0.232 0.215 0.193 0.166 0.125 0.052 STEC-310 0.528 0.489 0.441 0.381 0.303 0.191 STEC-355 0.785 0.727 0.662 0.586 0.492 0.363 0.108 STEC-400 1.173 1.123 1.068 1.006 0.933 0.846 0.736 0.583 0.333 Volume flow rate STEC-450 1.752 1.703 1.651 1.594 1.532 1.463 1.386 1.3 1.201 1.085 0.941 0.742 STEC-500 2.854 2.803 2.75 2.695 2.636 2.575 2.511 2.442 2.369 2.291 2.206 2.113 2.011 1.895 1.763 1.607 1.415 1.172 0.855 0.475 STEC-630 4.658 4.543 4.424 4.301 4.173 4.041 3.903 3.758 3.605 3.444 3.271 3.086 2.883 2.657 2.399 2.086 1.656 Volume flow rate m 3 /s MAX VOLUME FLOW RATE m 3 /h AS FUNCTION OF STATIC PRESSURE Size Pressure (Pa) 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 STEC-190 587 554 522 486 446 400 342 266 140 STEC-225 835 774 695 598 450 187 STEC-310 1901 1760 1588 1372 1091 688 STEC-355 2826 2617 2383 2110 1771 1307 389 STEC-400 4223 4043 3845 3622 3359 3046 2650 2099 1199 STEC-450 6307 6131 5944 5738 5515 5267 4990 4680 4324 3906 3388 2671 STEC-500 10274 10091 9900 9702 9490 9270 9040 8791 8528 8248 7942 7607 7240 6822 6347 5785 5094 4219 3078 1710 STEC-630 16769 16355 15926 15484 15023 14548 14051 13529 12978 12398 11776 11110 10379 9565 8636 7510 5962 Volume flow rate m 3 /h

Roofmaster STEC non-insulated version - Technical Catalogue 7 FAN CHART EXPLANATION AND DEFINITIONS SYMBOLS v Δp s (Pa) q v (m³/h) 0 500 1000 1500 2000 400 350 40 300 1400 45 250 w 1550 r/min 1200 200 150 1000 100 50 u 55 46% 60 db(a) y x 45 40 65 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) 1 3 5 10 15 20 25 30 40 Attenuation L (db) 7 17 22 28 31 34 36 37 40 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 13347-2. 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 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-190 FAN DATA q v (m³/h) 0 500 200 400 600 3070 r/min 450 30 400 35 350 300 2500 37% Δ p s (Pa) 250 35 200 2000 30 150 70 100 1500 65 db(a) 20 50 60 0 0 0,05 0,1 0,15 0,2 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 0.148 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) 63 125 250 500 1000 2000 4000 8000 Surroundings 0 767 5 1 6 2 3 11 19 20 Surroundings 767 1534 6 4 6 2 6 5 15 28 Surroundings 1534 3043 14 11 3 3 7 5 12 16 STEC-190 Surroundings 3043 3070 16 14 5 2 7 6 11 13 Inlet duct 0 767 5 2 5 7 0 11 21 23 Inlet duct 767 1534 9 2 5 5 10 5 7 30 Inlet duct 1534 3043 11 8 1 5 10 8 11 16 Inlet duct 3043 3070 13 9 5 0 10 9 13 14 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 9 358 348 TECHNICAL DATA - STEC-190 DIMENSIONS AND WEIGHT 130 358 348 245 130 Weight: 8 kg Roof free outlet area: 0.039 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-190-11b-c-0-1 FAN AND MOTOR DATA Fan code ACCESSORIES Roof curb Potentiometer Nom. power kw STEC-190 0.083 Supply voltage 1~ 200-240 VAC 50/60 Hz Max Speed r/min BOGA-005-1-c-2 STYZ-01-51-0-1 Nom. current A Temperature range C 3070 0.75 25 - +60 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-190-111-c-0-1 (fan packages 0 & 1) See corresponding wiring diagram on pages 29-30.

10 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-225 FAN DATA q v (m³/h) 0 200 400 600 800 350 2050 r/min 300 30 250 1800 40 42% Δp s (Pa) 200 150 1400 40 100 1000 30 50 55 60 65 db(a) 70 20 0 0 0,05 0,1 0,15 0,2 0,25 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 0.224 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 1533 9 5 6 4 5 5 17 24 Surroundings 1534 2050 10 9 5 4 7 4 13 15 STEC-225 Inlet duct 0 1533 6 2 4 10 5 9 18 24 Inlet duct 1534 2050 7 8 2 10 9 10 15 19 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 11 TECHNICAL DATA - STEC-225 DIMENSIONS AND WEIGHT 368 467 469 Ø12 398 368 234 442 Weight: 10 kg Roof free outlet area: 0.039 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-225-11b-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-225 0.082 WIRING Supply voltage 1~ 200-240 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-01-51-0-1 A STEC-225-111-c-0-1 (fan packages 0 & 1) B STEC-225-112-c-0-1 (fan package 2) Nom. current A Temperature range C 2050 0.7 25 - +60 See corresponding wiring diagram on pages 29-30.

12 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-310 FAN DATA q v (m³/h) 0 500 1000 1500 2000 400 350 1550 r/min 300 1400 40 45 250 46% Δp s (Pa) 200 1200 45 150 1000 40 100 60 db(a) 65 30 50 55 0 0 0,1 0,2 0,3 0,4 0,5 0,6 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 0.487 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 894 1 3 0 0 5 13 20 26 Surroundings 894 1550 8 3 2 1 4 10 18 27 STEC-310 Inlet duct 0 894 1 0 2 6 11 9 23 29 Inlet duct 894 1550 13 1 3 7 10 13 17 26 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 13 TECHNICAL DATA - STEC-310 DIMENSIONS AND WEIGHT 467 469 368 Ø12 398 368 314 442 Weight: 16 kg Roof free outlet area: 0.058 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-310-11b-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-310 0.15 WIRING Supply voltage 1~ 200-240 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-01-51-0-1 A STEC-310-111-c-0-1 (fan packages 0 & 1) B STEC-310-112-c-0-1 (fan package 2) Nom. current A Temperature range C 1550 1.2 25 - +60 See corresponding wiring diagram on pages 29-30.

14 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-355 FAN DATA q v (m³/h) 0 400 500 1000 1500 2000 2500 3000 1410 r/min 350 40 45 300 250 1200 48% Δp s (Pa) 200 1000 45 150 40 800 100 70 30 50 55 60 db(a) 65 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) Nominal flow rate according to Regulation 1253/2014 is 0.716 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 894 1 3 0 0 5 13 20 26 Surroundings 894 1410 8 3 2 1 4 10 18 27 STEC-355 Inlet duct 0 894 1 0 2 6 11 9 23 29 Inlet duct 894 1410 13 1 3 7 10 13 17 26 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 15 TECHNICAL DATA - STEC-355 DIMENSIONS AND WEIGHT 577 579 468 Ø12 508 468 349 552 Weight: 22 kg Roof free outlet area: 0.098 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-355-11b-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-355 0.25 WIRING Supply voltage 1~ 200-277 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-01-51-0-1 A STEC-355-111-c-0-1 (fan packages 0 & 1) B STEC-355-112-c-0-1 (fan package 2) Nom. current A Temperature range C 1410 1.1 25 - +60 See corresponding wiring diagram on pages 29-30.

16 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-400 FAN DATA q v (m³/h) 0 1000 2000 3000 4000 600 500 1450 r/min 40 400 48 50% 1200 Δp s (Pa) 300 48 1000 200 100 800 65 db(a) 70 40 30 60 0 0 0,2 0,4 0,6 0,8 1 1,2 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 1.032 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 894 3 0 1 2 4 12 20 29 Surroundings 894 1450 3 0 0 3 3 11 19 27 STEC-400 Inlet duct 0 894 1 4 1 5 8 6 12 29 Inlet duct 894 1450 10 2 3 4 6 11 13 14 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 17 TECHNICAL DATA - STEC-400 DIMENSIONS AND WEIGHT 647 649 498 Ø12 578 498 359 622 Weight: 27 kg Roof free outlet area: 0.123 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-400-11b-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-400 0.5 WIRING Supply voltage 1~ 200-277 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-01-51-0-1 A STEC-400-111-c-0-1 (fan packages 0 & 1) B STEC-400-112-c-0-1 (fan package 2) Nom. current A Temperature range C 1450 2.2 25 - +50 See corresponding wiring diagram on pages 29-30.

18 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-450 FAN DATA q v (m³/h) 0 1000 2000 3000 4000 5000 6000 700 1560 r/min 40 600 50 500 1400 55% Δp s (Pa) 400 1200 50 300 1000 40 200 75 db(a) 30 70 80 85 0 0 0,2 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 1.519 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 894 3 0 1 2 4 12 20 29 Surroundings 894 1560 3 0 0 3 3 11 19 27 STEC-450 Inlet duct 0 894 1 4 1 5 8 6 12 29 Inlet duct 894 1560 10 2 3 4 6 11 13 14 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 19 TECHNICAL DATA - STEC-450 DIMENSIONS AND WEIGHT 737 739 603 Ø12 668 603 390 712 Weight: 36 kg Roof free outlet area: 0.158 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-450-31b-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-450 0.97 WIRING Supply voltage 3~ 380...480VAC 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-01-51-0-1 A STEC-450-311-c-0-1 (fan packages 0 & 1) B STEC-450-312-c-0-1 (fan package 2) Nom. current A Temperature range C 1560 1.7 25 - +60 See corresponding wiring diagram on pages 29-30.

20 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-500 FAN DATA q v (m³/h) 0 1200 2000 4000 6000 8000 10000 1570 r/min 1000 40 50 1400 55 800 58% Δp s (Pa) 600 1200 55 400 1000 50 75 db(a) 80 40 200 70 85 0 0 0,5 1 1,5 2 2,5 3 q v (m 3 /s) Nominal flow rate according to Regulation 1253/2014 is 2.442 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 767 3 1 1 3 4 9 14 19 Surroundings 767 1570 7 0 2 3 4 9 12 18 STEC-500 Inlet duct 0 767 0 0 4 10 9 12 17 22 Inlet duct 767 1570 8 0 4 9 10 11 15 19 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 21 TECHNICAL DATA - STEC-500 DIMENSIONS AND WEIGHT 917 919 800 Ø12 844 800 469 892 Weight: 56 kg Roof free outlet area: 0.261 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-500-31b-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-500 1.96 WIRING Supply voltage 3~ 380...480VAC 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-01-51-0-1 A STEC-500-311-c-0-1 (fan packages 0 & 1) B STEC-500-312-c-0-1 (fan package 2) Nom. current A Temperature range C 1570 3.0 25 - +40 See corresponding wiring diagram on pages 29-30.

22 Roofmaster STEC non-insulated version - Technical Catalogue TECHNICAL DATA - STEC-630 FAN DATA q v (m³/h) 0 1000 5000 10000 15000 900 1310 r/min 50 800 700 1200 60 61% 600 Δp s (Pa) 500 1000 60 400 300 800 50 40 200 75 db(a) 80 85 0 0 1 2 3 4 5 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 63 125 250 500 1000 2000 4000 8000 Surroundings 0 894 5 1 0 2 4 10 18 22 Surroundings 894 1310 9 0 4 3 4 7 14 21 STEC-630 Inlet duct 0 894 16 0 2 7 7 12 20 20 Inlet duct 894 1310 7 5 3 9 8 10 17 21 For information how to calculate sound data, sound pressure level and remote attenuation, see page 7.

Roofmaster STEC non-insulated version - Technical Catalogue 23 TECHNICAL DATA - STEC-630 DIMENSIONS AND WEIGHT 1137 1139 Ø12 1112 1069 775 853 528 775 853 Weight: 82 kg Roof free outlet area: 0.468 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-630-31b-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-630 2.75 WIRING Supply voltage 3~ 380...480VAC 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-01-51-0-1 A STEC-630-311-c-0-1 (fan packages 0 & 1) B STEC-630-312-c-0-1 (fan package 2) Nom. current A Temperature range C 1310 4.3 25 - +55 See corresponding wiring diagram on pages 29-30.

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 947-3. 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 29-30. 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 355-630.

Roofmaster STEC non-insulated version - Technical Catalogue 25 ACCESSORIES TO BE ORDERED SEPARATELY Ø155 335 245 B E C 853 775 C 853 775 265 980/ 1250 A Size 07 (for STEC-630) 425 250 F D Height of the duct connection: 60 mm Ø160 Size 005 (for STEC-190) G Sizes 01-06 (for STEC-225...500) 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-2 980 1230 442 211 310 368 485 325 18 22 BOGA-02-1-c-2 980 1230 442 211 310 368 485 325 18 22 BOGA-03-1-c-2 980 1230 622 435 530 468 705 545 43 53 BOGA-04-1-c-2 980 1230 622 435 530 498 705 545 43 53 BOGA-05-1-c-2 980 1230 712 435 530 603 705 545 43 53 BOGA-06-1-c-2 980 1230 955 768 865 800 1040 880 85 105 BOGA-07-1-c-2 980 1230 1112 768 865 1) 1040 880 85 105 1) See separate illustration for size 630. W1 = Weight in kg for A (c = 1) W2 = Weight in kg for A (c = 2)

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) 63 125 250 500 1000 2000 4000 8000 BOGA-01-1-1-2 1 2 3 11 19 15 13 9 BOGA-02-1-1-2 1 2 3 11 19 15 13 9 BOGA-03-1-1-2 0 1 2 9 16 13 11 8 BOGA-04-1-1-2 0 1 2 9 16 13 11 8 BOGA-05-1-1-2 0 1 2 9 16 13 11 8 BOGA-06-1-1-2 0 2 3 8 13 11 9 7 BOGA-07-1-1-2 0 2 3 8 13 11 9 7 SOUND ATTENUATION WHEN USING BOGA EI30, L = 1230 Model Octave band mid frequency (Hz) 63 125 250 500 1000 2000 4000 8000 BOGA-01-1-2-2 3 4 5 14 22 19 15 11 BOGA-02-1-2-2 3 4 5 14 22 19 15 11 BOGA-03-1-2-2 2 3 4 12 19 16 13 9 BOGA-04-1-2-2 2 3 4 12 19 16 13 9 BOGA-05-1-2-2 2 3 4 12 19 16 13 9 BOGA-06-1-2-2 1 3 6 12 15 12 10 8 BOGA-07-1-2-2 1 3 6 12 15 12 10 8 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 24 154, 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-01-1 182 212 782 682 260 40 6x7 4.5 STEZ-01-2 253 283 782 682 260 40 6x7 4.5 STEZ-01-3 358 392 892 792 260 40 8x9.5 5.0 STEZ-01-4 358 392 962 862 260 40 8x9.5 6.0 STEZ-01-5 454 488 1052 952 260 40 8x9.5 7.0 STEZ-01-6 454 488 1235 1132 260 40 8x9.5 8.0 STEZ-01-7 564 600 1452 1352 260 140 12x9.5 9.5 B B1 H1 H

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 24 154, part 1 z x d ØD1 Model D D1 D2 H z x d Weight (kg) STEZ-02-1 182 212 232 130 6x7 0.7 STEZ-02-2 253 283 303 130 6x7 2.0 STEZ-02-3 358 392 418 140 8x9.5 3.4 STEZ-02-4 358 392 418 140 8x9.5 3.4 STEZ-02-5 454 488 514 140 8x9.5 4.2 STEZ-02-6 454 488 514 140 8x9.5 4.2 STEZ-02-7 564 600 634 140 12x9.5 5.4 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-04-1 182 212 435 6 x M8 2.2 STEZ-04-2 253 283 435 6 x M8 2.2 STEZ-04-3 358 392 548 8 x M8 3.6 STEZ-04-4 358 392 618 8 x M8 4.6 STEZ-04-5 454 488 708 8 x M8 6.1 STEZ-04-6 454 488 888 8 x M8 9.5 STEZ-04-7 564 600 1108 12 x M8 14.7 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 24 154, part 1. z x d ØD2 ØD1 Model D D1 D2 H z x d Weight (kg) STEZ-05-1 182 212 232 130 6x7 1.9 STEZ-05-2 253 283 303 225 6x7 3.4 STEZ-05-3 358 392 418 238 8x9.5 6.0 STEZ-05-4 358 392 418 238 8x9.5 6.8 STEZ-05-5 454 488 514 270 8x9.5 8.0 STEZ-05-6 454 488 514 270 8x9.5 8.0 STEZ-05-7 564 600 634 330 12x9.5 12.4 H ØD

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 853 775 853 775 Model B B1 E U H Weight (kg) STEZ-07-1 690 390 368 660 442 15 STEZ-07-2 690 390 368 660 442 15 STEZ-07-3 803 503 468 760 622 35 STEZ-07-4 873 573 498 760 622 40 STEZ-07-5 963 663 603 960 712 45 STEZ-07-6 1133 833 800 960 955 60 STEZ-07-7 1363 1063 1) 960 1112 80 1) See separate illustration for size 7. B B1 H Sizes 01-06 SOUND ATTENUATION WHEN USING STEZ-07 Model Octave band mid frequency (Hz) 63 125 250 500 1000 2000 4000 8000 STEZ-07-1 1 2 4 9 13 20 21 12 STEZ-07-2 1 2 4 9 13 20 21 12 STEZ-07-3 1 2 6 9 15 18 18 11 STEZ-07-4 1 2 6 9 16 19 19 12 STEZ-07-5 1 3 8 14 18 24 25 23 STEZ-07-6 1 3 8 14 18 24 25 23 STEZ-07-7 1 2 7 13 16 22 23 20 PRESSURE LOSS IN PA p t, Pa 60 50 30 20 10 5 3 2 1 0.1 0.2 STEZ-07-1, STEZ-07-2 Q v, m 3 /s STEZ-07-3 STEZ-07-4 0.3 0.4 0.5 1 STEZ-07-5 STEZ-07-6 STEZ-07-7 2 3 4 5 6 STYZ-01-51-0-1 - 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

Roofmaster STEC non-insulated version - Technical Catalogue 29 WIRING DIAGRAM A (FOR FAN PACKAGES 0 & 1) STEC-190...310 STEC-450...630 STEC-355...400

30 Roofmaster STEC non-insulated version - Technical Catalogue WIRING DIAGRAM B (FOR FAN PACKAGE 2) STEC-225...630

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 190-400) 3 = 3-phase motor (sizes 450-630) 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-01-51-0-1

FG_DC_10076GB_Roofmaster STEC non insulated_te_20180605_r0 Copyright 2017 FläktGroup WWW.FLAKTGROUP.COM 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 www.flaktgroup.com or contact one of our offices ROOFMASTER STEC