BELT DRIVEN CABINET FANS CVTT Series

Transcription

1 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

2 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, ºC/+4ºC 43 CVTT-9/9,18 1, ºC/+4ºC 52 CVTT-1/1,37 1, ºC/+4ºC CVTT-12/12,37 2, ºC/+4ºC 88 CVTT-15/15, ºC/+4ºC 18 CVTT-18/18 1,1 7, ºC/+4ºC 147 CVTT-2/2 1,5 7, ºC/+4ºC 27 CVTT-22/22 2, ºC/+4ºC 39 CVTT-25/25 2, ºC/+4ºC 35 CVTT-3/28 2, ºC/+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/ CVTT-9/ CVTT-1/ CVTT-12/ CVTT-15/ CVTT-18/ CVTT-2/ CVTT-22/ CVTT-25/ CVTT-3/ Motor powers (kw) for CVTT product range 1 SPEED 4 POLES,25,37, ,5 2, ,5 7, /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

3 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) (mmwg) The fan revolutions are set in multiples of 5 rpm rpm 13 12,18 kw ,25 kw,55 kw,37 kw CVTT-9/9,75 kw CVTT-7/7,75 kw 5 5 CVTT-9/9 15 rpm rpm ,37 kw,55 kw ,55 kw,75 kw ,25 kw,18 kw ,37 kw,25 kw ,18 kw CVTT-1/ rpm CVTT-12/ rpm ,37 kw,55 kw,75 kw ,37 kw,55 kw,75 kw Sound pressure level () measured on the inlet side at 1,5 m distance. 682 coustic cabinet fans CVTT

4 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 Standards. 6 6 CVTT-15/ rpm CVTT-18/ rpm ,75 kw rpm CVTT-2/ CVTT-22/22 8 rpm kw (Pa) (mmwg) CVTT-25/25 (Pa) (mmwg) CVTT-3/ rpm kw rpm 11 kw 15 kw Sound pressure level () measured on the inlet side at 1,5 m distance. coustic cabinet fans CVTT 683

5 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 CVTT-9/9 - H CVTT-1/1 - H CVTT-12/12 - H CVTT-15/15 - H CVTT-18/18 - H CVTT-2/2 - H CVTT-22/22 - H CVTT-25/25 - H CVTT-3/28 - H Vertical discharge CVTT-7/7 - V CVTT-9/9 - V CVTT-1/1 - V CVTT-12/12 - V CVTT-15/15 - V CVTT-18/18 - V CVTT-2/2 - V CVTT-22/22 - V CVTT-25/25 - V CVTT-3/28 - V 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/ coustic cabinet fans CVTT

6 MOUNTING CCESSORIES COP RECT Inlet flexible connector. Cabinet Inlet H Nº holes CVTT-7/7 COP RECT 7/7 SP CVTT-9/9 COP RECT 9/9 SP 42 8 CVTT-1/1 COP RECT 1/1 SP 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 CVTT-22/22 COP RECT 22/22 SP CVTT-25/25 COP RECT 25/25 SP CVTT-3/28 COP RECT 3/28 SP Inlet Cabinet Discharge H Nº holes CVTT-7/7 COP RECT 7/7 IMP CVTT-9/9 COP RECT 9/9 IMP CVTT-1/1 COP RECT 1/1 IMP CVTT-12/12 COP RECT 12/12 IMP CVTT-15/15 COP RECT 15/15 IMP CVTT-18/18 COP RECT 18/18 IMP CVTT-2/2 COP RECT 2/2 IMP CVTT-22/22 COP RECT 22/22 IMP CVTT-25/25 COP RECT 25/25 IMP CVTT-3/28 COP RECT 3/28 IMP Discharge CTI Pitched roof cover For outdoor mounted installations. 3 CTI cabinet CTI-7 CVTT-7/ CTI-9 CVTT-9/ CTI-1 CVTT-1/ CTI-12 CVTT-12/ CTI-15 CVTT-15/ CTI cabinet CTI-18 CVTT-18/ CTI-2 CVTT-2/ CTI-22 CVTT-22/ CTI-25 CVTT-25/ CTI-3 CVTT-3/ coustic cabinet fans CVTT 685

7 MOUNTING CCESSORIES CVD (Discharge) CV (Inlet) Protection guards Wire protection guards for mounting on the discharge or inlet sides of the cabinets Discharge Inlet cabinet CVD CV CVTT-7/7 CVD CV CVTT-9/9 CVD CV CVTT-1/1 CVD CV CVTT-12/12 CVD CV CVTT-15/15 CVD CV CVTT-18/18 CVD CV CVTT-2/2 CVD CV CVTT-22/22 CVD CV CVTT-25/25 CVD CV CVTT-3/28 CVD CV 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 M6 6,2 15 CVTT-9/9 PVZ-6 SH M6 6,2 15 CVTT-1/1 PVZ-6 SH M6 6,2 25 CVTT-12/12 PVZ-6 SH M6 6,2 25 CVTT-15/15 PVZ-8 SH M8 8,2 45 CVTT-18/18 PVZ-8 SH M8 8,2 45 CVTT-2/2 PVZ-8 SH M8 8,2 8 CVTT-22/22 PVZ-1 SH M1 1,2 15 CVTT-25/25 PVZ-1 SH M1 1,2 15 CVTT-3/28 PVZ-1 SH M1 1,2 18 * The weight indicated is the maximum weight that can with stand vibration support. 686 coustic cabinet fans CVTT