Range of forward curved belt drive cabinet fans manufactured from galvanised steel sheet, internally lined with melamine thermo-acoustic insulation. ll models incorporate a double inlet low pressure centrifugal fan mounted on anti-vibration mounts and flexible coupling at the discharge. Supplied as standard in horizontal discharge (code H) configuration with motor, pulley and belt assembly on the right hand side of the unit when viewed from the discharge end. Motors ll motors are IP55, class F insulation. Electrical supply: Three phase 23/ 4V-5Hz, up to. 4V-5Hz, for higher motor powers. (See characteristics chart) Single phase 23V-5Hz, with a maximum of (CVT version). ll motor up to are mounted onto the fan casing scroll. ll motor above are mounted onto an adjoining support frame. ll three phase motors are speed controllable by frequency inverter. On request The belt-driven assembly can be supplied at the left hand side of the unit (TI version), Vertical discharge (code V) configuration. s fitted with circular inlet flanges. Double thickness (double skin) panels (17 mm). Two speed motors (4/8 and 4/6 poles). Low noise level coustic insulation of 7 mm thickness flame retardant (M1) melamine foam reducing the noise level significantly. Flexible coupling at the discharge To reduce vibration and noise transmissions to the installation. Robustness Quality finishing, with aluminium corners providing a high robustness. TEX versions On request, explosion proof versions in accordance to TEX Directive, for three phase models up to 11 kw: - Increased safety II2G EExeIIT3. - Flame proof models II2G EExdIIT5 or EExdIICT4. - The consumption data (, W) of TEX products may vary from the data shown in technical characteristic charts. Specific applications Versatile outlet discharge Vertical discharge models available under request. nti-vibration mounts The fan is mounted on base frame with silent-blocks to reduce vibration and noise transmissions to the installation. Versions 68 coustic cabinet fans CVTT
Technical characteristics efore installation check that the product electrical characteristics listed on the data plate label (voltage, power, frequency, etc.) match those of the intended electrical supply. Motor power Fan speed irflow mbient Minimum (kw) (kw) Minimum (rpm) (rpm) Minimum (m 3 /h) (m 3 /h) temperature (ºC) weight with motor (kg) CVTT-7/7,18,75 8 18 4 2.4-2ºC/+4ºC 43 CVTT-9/9,18 1,1 8 15 1.1 3.8-2ºC/+4ºC 52 CVTT-1/1,37 1,5 6 13 1.5 5.6-2ºC/+4ºC CVTT-12/12,37 2,2 5 13 1. 8.2-2ºC/+4ºC 88 CVTT-15/15,75 4 3 1 2. 12.1-2ºC/+4ºC 18 CVTT-18/18 1,1 7,5 4 9 3. 18. -2ºC/+4ºC 147 CVTT-2/2 1,5 7,5 3 8 4. 22. -2ºC/+4ºC 27 CVTT-22/22 2,2 11 3 8 4. 3. -2ºC/+4ºC 39 CVTT-25/25 2,2 11 25 65 5. 36. -2ºC/+4ºC 35 CVTT-3/28 2,2 15 2 55 6. 55. -2ºC/+4ºC 472 coustic characteristics Sound power spectrum: To obtain the sound power level spectrum subtract the correction values (d()) shown in the table below at the corresponding octave average frequencies from the value provided in the product performance. 63 Hz 125 Hz 25 Hz 5 Hz 1 Hz 2 Hz 4 Hz 8 Hz 16 Hz CVTT-7/7 17 15 11 12 4 5 14 19 27 CVTT-9/9 17 15 11 12 4 5 14 19 27 CVTT-1/1 17 15 11 11 4 5 14 2 27 CVTT-12/12 16 14 11 1 4 5 15 21 27 CVTT-15/15 13 13 1 1 5 5 15 22 27 CVTT-18/18 11 12 9 9 5 6 15 22 27 CVTT-2/2 1 11 8 8 6 7 16 23 27 CVTT-22/22 9 11 7 8 6 8 17 24 27 CVTT-25/25 9 11 7 8 6 8 17 25 27 CVTT-3/28 9 11 7 8 6 8 18 25 27 Motor powers (kw) for CVTT product range 1 SPEED 4 POLES,25,37,55 1 1 1,5 2,2 3 4 5,5 7,5 11 15 4/6 POLES,25/,9 - -,7/,2,85/,25 1,4/,5 2,4/,75 3,4/1,1 4/1,2 6,3/1,9 9/3 11/3,7 15/5 2 SPEED 4/8 POLES,25/,6,37/,7,55/,9,75/,12 1,1/,18 1,5/,25 2,2/,37 3/,55 4/,75 5,5/1,1 7,5/1,5 11/2,8 15/3,8 NOTE: The powers may have small variations depending on the motor manufacturer. coustic cabinet fans CVTT 681
Performance curves Cabinet fan selection example: Required airflow: 2. m 3 /h System pressure drop: 3 mmwg From x-axis (horizontal) with an airflow of 2. m 3 /h. and in the y-axis (vertical) with a pressure of 3 mmwg, those conditions meet in the Performance curve at 1.3 rpm (red curve) below the motor power of,75 kw (red dashed curve) and with a sound pressure level of 55 d() (among the blue d() line and the d() one. So, the resulting model would be: CVTT-9/9 -,75 kw (1.3 rpm) Motor power:,75 kw Speed: 1.3 rpm Sound pressure at 1,5 metro: 55 d() ir Velocity at Discharge: 8,76 m/s If the fan operates in free discharge, an additional system resistance, shown in the lower scale measured in mmwg for every curve, should be add. In this example 4,7 mmwg should be foreseen. (Pa) 5 4 3 2 1 (mmwg) 5 4 3 2 1 The fan revolutions are set in multiples of 5 rpm 8 1 15 rpm 13 12,18 kw 5 1 15 2 2 3 35 4 45 2 4 6 14,25 kw,55 kw,37 kw CVTT-9/9,75 kw 8 8.76 1 12 14 16 1 3 4.7 7 1 12 16 5 5 CVTT-7/7,75 kw 5 5 CVTT-9/9 15 rpm 4 4 18 rpm 4 4 14 3 3 16,37 kw,55 kw 3 3 12 13,55 kw,75 kw 2 2 12 14,25 kw,18 kw 2 2 1 9 11,37 kw,25 kw 1 1 1 8 41 5 1 15 2 25 1 1 8,18 kw 5 1 15 2 25 3 35 4 45. 2. 4. 6. 8. 1. 12. 14. 2 4 6 8 1 12 14 16.1.5 1 3 5 7 9 11 1 3 5 7 1 12 16 5 5 CVTT-1/1 6 6 13 rpm CVTT-12/12 4 3 2 1 4 3 2 1 6 7 8 13 rpm 1 9 12 11,37 kw,55 kw,75 kw 1 2 3 4 5 6 7 5 4 3 2 1 5 4 3 2 1 5 7 6 8 12 11 1 9,37 kw,55 kw,75 kw 1 2 3 4 5 6 7 8 9 2 4 6 8 1 12 14 16 18 2 2 4 6 8 1 12 14 16 18 1 3 5 7 1 12 14 17 1 2 3 4 5 6 7891 15 2 Sound pressure level () measured on the inlet side at 1,5 m distance. 682 coustic cabinet fans CVTT
Performance curves qv: irflow in m 3 /h and m 3 /s. psf: Static pressure in mmwg and Pa. Dry air at 2ºC and 76 mmhg. Performance data in accordance with ISO 581 and MC 21-99 Standards. 6 6 CVTT-15/15 6 6 9 rpm CVTT-18/18 5 5 1 rpm 5 5 8 4 4 9 4 4 7 3 2 3 2 7 6 8,75 kw 3 2 3 2 5 6 1 1 3 4 5 2 4 6 8 1 12 1 3 5 41 7 9 11 13 15 17 1 3 5 7 891 15 1 1 4 4 8 12 16 2 3 5 7 1 2 3 4 5 6 7891 15 2 25 9 11 13 15 17 19 21 6 6 8 rpm CVTT-2/2 6 6 7 CVTT-22/22 8 rpm 5 5 5 5 11 kw 4 4 7 4 4 6 3 3 6 3 3 5 2 1 2 1 3 4 5 4 8 12 16 2 24 71 2 1 2 1 3 4 4 8 12 16 2 24 28 2 4 6 8 1 12 14 16 2 4 6 8 1 12 14 16.1.5 1 3 5 1 1214.1.3 1 2 5 1 12 15 (Pa) (mmwg) CVTT-25/25 (Pa) (mmwg) CVTT-3/28 6 5 4 3 6 5 4 3 45 65 rpm 6 55 5 11 kw 6 5 4 3 6 5 4 3 35 4 45 5 55 rpm 11 kw 15 kw 71 2 1 2 1 4 35 3 25 4 8 12 16 2 24 28 32 36 2 1 2 1 3 25 2 5 1 15 2 25 3 35 4 45 5 2 4 6 8 1 12 14 16 3 5 7 9 11 13 15 17 1 2 3 4 5 6 7 8 91.5 1 3 5 7 1 12 14 Sound pressure level () measured on the inlet side at 1,5 m distance. coustic cabinet fans CVTT 683
Dimensions (mm) F E M = G x H C E F = J I = D = K L C D E F G H I J K L M Horizontal discharge CVTT-7/7 - H 554 71 483 232 222 92 325 325 3 3 78 CVTT-9/9 - H 65 8 554 3 26 96 4 4 3 3 87 CVTT-1/1 - H 71 85 65 333 289 94 45 45 3 3 92 CVTT-12/12 - H 775 95 675 396 341 82 5 5 3 3 12 CVTT-15/15 - H 95 118 775 473 43 88 6 6 3 3 188 CVTT-18/18 - H 118 125 9 5 479 82 7 7 3 3 132 CVTT-2/2 - H 125 135 114 63 63 137 8 8 3 3 142 1 8 CVTT-22/22 - H 135 15 125 695 7 1 9 9 3 3 157 1 8 CVTT-25/25 - H 15 16 135 796 8 122 1 1 3 3 167 176 8 CVTT-3/28 - H 17 19 16 87 945 15 12 12 3 3 197 26 8 Vertical discharge CVTT-7/7 - V 554 71 483 232 222 92 325 325 3 3 78 CVTT-9/9 - V 65 8 554 3 26 96 4 4 3 3 87 CVTT-1/1 - V 71 85 65 333 289 94 45 45 3 3 92 CVTT-12/12 - V 775 95 675 396 341 82 5 5 3 3 12 CVTT-15/15 - V 95 118 775 473 43 88 6 6 3 3 188 CVTT-18/18 - V 118 125 9 5 479 82 7 7 3 3 132 CVTT-2/2 - V 125 15 118 63 63 137 8 8 3 3 154 1 8 CVTT-22/22 - V 135 16 186 695 7 1 9 9 3 3 164 176 8 CVTT-25/25 - V 15 18 119 796 8 128 1 1 3 3 184 196 8 CVTT-3/28 - V 17 2 139 87 945 128 12 12 3 3 24 216 8 Special design with circular inlet Options: Circular inlet flanges. On request CVTT cabinet fans supplied with circular inlet flanges. cabinet Inlet diameter flange (mm) CVTT-7/7 315 CVTT-9/9 355 CVTT-1/1 4 CVTT-12/12 45 CVTT-15/15 CVTT-18/18 63 CVTT-2/2 8 CVTT-22/22 9 CVTT-25/25 1 CVTT-3/28 125 684 coustic cabinet fans CVTT
MOUNTING CCESSORIES COP RECT Inlet flexible connector. Cabinet Inlet H Nº holes CVTT-7/7 COP RECT 7/7 SP 327 8 CVTT-9/9 COP RECT 9/9 SP 42 8 CVTT-1/1 COP RECT 1/1 SP 452 8 CVTT-12/12 COP RECT 12/12 SP 52 8 CVTT-15/15 COP RECT 15/15 SP 62 8 CVTT-18/18 COP RECT 18/18 SP 72 8 CVTT-2/2 COP RECT 2/2 SP 82 168 16 CVTT-22/22 COP RECT 22/22 SP 92 199 16 CVTT-25/25 COP RECT 25/25 SP 12 28 16 CVTT-3/28 COP RECT 3/28 SP 122 247 16 Inlet Cabinet Discharge H Nº holes CVTT-7/7 COP RECT 7/7 IMP 224 234 8 CVTT-9/9 COP RECT 9/9 IMP 262 32 8 CVTT-1/1 COP RECT 1/1 IMP 291 335 8 CVTT-12/12 COP RECT 12/12 IMP 343 398 8 CVTT-15/15 COP RECT 15/15 IMP 45 475 8 CVTT-18/18 COP RECT 18/18 IMP 481 558 8 CVTT-2/2 COP RECT 2/2 IMP 635 628 125 16 CVTT-22/22 COP RECT 22/22 IMP 72 697 15 16 CVTT-25/25 COP RECT 25/25 IMP 82 798 175 16 CVTT-3/28 COP RECT 3/28 IMP 947 872 21 16 Discharge CTI Pitched roof cover For outdoor mounted installations. 3 CTI cabinet CTI-7 CVTT-7/7 557 713 CTI-9 CVTT-9/9 68 83 CTI-1 CVTT-1/1 713 853 CTI-12 CVTT-12/12 778 953 CTI-15 CVTT-15/15 953 121 CTI cabinet CTI-18 CVTT-18/18 121 1253 CTI-2 CVTT-2/2 1253 1353 CTI-22 CVTT-22/22 1353 153 CTI-25 CVTT-25/25 153 163 CTI-3 CVTT-3/28 173 193 coustic cabinet fans CVTT 685
MOUNTING CCESSORIES CVD (Discharge) CV (Inlet) Protection guards Wire protection guards for mounting on the discharge or inlet sides of the cabinets. 75 275 Discharge Inlet cabinet CVD CV CVTT-7/7 CVD-7 225 235 CV-7 329 329 CVTT-9/9 CVD-9 263 33 CV-9 43 43 CVTT-1/1 CVD-1 292 336 CV-1 453 453 CVTT-12/12 CVD-12 344 399 CV-12 53 53 CVTT-15/15 CVD-15 476 CV-15 63 63 CVTT-18/18 CVD-18 482 559 CV-18 73 73 CVTT-2/2 CVD-2 633 633 CV-2 83 83 CVTT-22/22 CVD-22 698 73 CV-22 93 93 CVTT-25/25 CVD-25 799 83 CV-25 13 13 CVTT-3/28 CVD-3 873 948 CV-3 123 123 PVZ Rubber anti-vibration mounts that absorb vibration and attenuate the noise produced in the installation. (1 PVZ= 4 supports in a bag). Working temperatures: -3ºC/+7ºC. cabinet PVZ C D ØE ØF Max. load (kg) CVTT-7/7 PVZ-6 SH 45 6 9 24 76 M6 6,2 15 CVTT-9/9 PVZ-6 SH 45 6 9 24 76 M6 6,2 15 CVTT-1/1 PVZ-6 SH 6 6 9 24 76 M6 6,2 25 CVTT-12/12 PVZ-6 SH 6 6 9 24 76 M6 6,2 25 CVTT-15/15 PVZ-8 SH 45 8 12 27 1 M8 8,2 45 CVTT-18/18 PVZ-8 SH 45 8 12 27 1 M8 8,2 45 CVTT-2/2 PVZ-8 SH 6 8 12 27 1 M8 8,2 8 CVTT-22/22 PVZ-1 SH 45 1 148 28 124 M1 1,2 15 CVTT-25/25 PVZ-1 SH 45 1 148 28 124 M1 1,2 15 CVTT-3/28 PVZ-1 SH 6 1 148 28 124 M1 1,2 18 * The weight indicated is the maximum weight that can with stand vibration support. 686 coustic cabinet fans CVTT