Cabinet fans manufactured from heavy gauge galvanised steel sheet and internally lined with melamine foam flame retardant acoustic insulation (M1). All models incorporate double inlet single phase direct-drive forward curved centrifugal fan fitted with anti vibration mounts and IP55 remote terminal box. All fans installed in acoustic cabinet fans CVB / CVT comply with the efficiency requirements of the ErP Directive. All cabinets can be installed outdoors as standard. Motors Available, depending upon the model, with single phase motors in 4 or 6 poles. Motors are IP44 or IP55 (1), Class F insulation, with ball bearings and thermal protection. Electrical supply: Single phase -5Hz. Three phase 23/4V-5Hz. All single phase models are speed controllable by tension (except CVB/4-27/2 373W). All three phase models are speed controllable by frequency inverter. (1) See technical characteristic chart. Working temperature from -2ºC to +4ºC. Low noise level Acoustic insulation of 7 mm thickness flame retardant (M1) melamine foam reducing the noise level significantly. Outdoor installation All cabinets can be installed outdoors as standard. Easy to mount All models are supplied with four mounting feet to facilitate installation. Flame retardant IP55 remote terminal box To ease installation and connection to external controls. Anti-vibration mounts Reducing vibration and noise transmission to the installation. Circular duct connection flanges In line circular duct connection flanges at the inlet and discharge. Acoustic cabinet fans CVB / CVT 639
Technical characteristics Before installation check that the product electrical characteristics listed on the data plate label (voltage, power, frequency, etc.) match those of the intended electrical supply. Model Speed (rpm) Motor power (W) Protection Insulation class Max. abs. current (A) Max. airflow (m 3 /h) Sound pressure level* (db (A)) Weight (kg) Speed controller Variable frequency inverter 4V REB RMB VFKB VFTM 6 POLES SINGLE PHASE MOTORS CVB-18/18 N 72W 9 72 IP44 F,6-1.28 45 22 REB-1 RMB-1,5 - - CVB-24/18 N 2W 9 2 IP55 F 1,3-2.1 5 34 REB-2,5 RMB-1,5 - - CVB-24/18 N 245W 9 245 IP55 F 1,7-2.28 52 35 REB-2,5 RMB-3,5 - - CVB-24/24 N 2W 9 2 IP55 F 1,7-2.54 51 35 REB-2,5 RMB-3,5 - - CVB-24/24 N 245W 9 245 IP55 F 2,2-2.83 52 36 REB-2,5 RMB-3,5 - - CVB-27/2 N 245W 9 245 IP44 F 2,3-2.73 51 41 REB-2,5 RMB-3,5 - - CVB-27/2 N 515W 9 515 IP55 F 3,7-4. 42 REB-5 RMB-3,5 - - CVB-27/27 N 245W 9 245 IP44 F 2,4-3.22 51 43 REB-5 RMB-3,5 - - CVB-27/27 N 515W 9 515 IP55 F 3,6-4.45 55 44 REB-5 RMB-8 - - CVB-32/24 N 55W 9 55 IP44 F 5,5-4.61 55 55 REB-1 RMB-8 - - CVB-32/32 N 515W 9 515 IP55 F 4,2-4.54 58 REB-5 RMB-8 - - 6 POLES THREE PHASE MOTORS CVT-32/24 N 1W 9 1 IP44 F 6,6 3,8 5.65 62 55 - - VFKB-45 VFTM-2,2 CVT-32/32 N 1W 9 1 IP44 F 6,9 4, 7.5 68 58 - - VFKB-45 VFTM-2,2 CVT-38/38 N 22W 9 22 IP55 F 8,8 5,1 9. 62 7 - - VFKB- VFTM-2,2 4 POLES SINGLE PHASE MOTORS CVB/4-18/18 N 147W 14 147 IP44 F 1,2-1.5 5 23 REB-2,5 RMB-1,5 - - CVB/4-24/24 N 373W 14 373 IP44 F 3,9-2.81 57 38 REB-5 RMB-8 - - CVB/4-27/2 N 373W 14 373 IP44 F 4,5-3.31 58 44 - - - - CVB/4-27/27 N 55W 14 55 IP44 F 4,5-3.39 57 46 REB-5 RMB-8 - - * Sound pressure level measured in free field at 1.5m, at the inlet side with ducted outlet, at the medium working point of the performance curve. Acoustic characteristics Sound power spectrum in db(a) at the corresponding frequency band in Hz, at free discharge. Model 63 125 25 5 2 4 8 Lw Outlet 41 54 61 67 65 61 55 7 CVB-18/18 N 72W Inlet 41 46 51 57 55 47 44 36 Radiated 41 43 44 46 44 37 31 25 51 Outlet 38 49 66 69 67 63 73 CVB-24/18 N 2W Inlet 38 47 57 62 57 49 46 37 64 Radiated 38 44 5 51 46 39 33 26 54 Outlet 44 53 63 69 72 7 66 58 76 CVB-24/24 N 2W Inlet 44 51 65 52 49 39 67 Radiated 44 53 54 49 42 36 28 58 Outlet 49 59 68 71 76 75 72 63 8 CVB/4-24/24 N 373W Inlet 49 57 65 67 64 57 55 44 7 Radiated 49 54 58 53 47 42 33 62 Outlet 52 63 72 79 82 82 79 72 87 CVB-27/2 N 515W Inlet 52 61 69 75 7 64 62 53 77 Radiated 52 58 62 64 59 54 49 42 67 Outlet 44 54 62 68 72 71 67 76 CVB-27/27 N 245W Inlet 44 52 59 64 53 5 41 66 Radiated 44 49 52 53 49 43 37 3 57 Outlet 51 63 69 71 76 75 72 64 8 CVB/4-27/27 N 55W Inlet 51 61 66 67 64 57 55 45 71 Radiated 51 58 59 53 47 42 34 63 Outlet 67 71 75 79 82 84 8 73 88 CVT-32/24 N 1W Inlet 67 69 72 75 7 66 63 54 79 Radiated 67 66 65 64 59 5 43 72 Outlet 58 7 75 83 83 84 81 74 89 CVT-32/32 N 1W Inlet 58 68 72 79 71 66 64 55 8 Radiated 58 65 65 68 51 44 71 Model 63 125 25 5 2 4 8 Lw Outlet 54 66 71 7 67 75 CVB/4-18/18 N 147W Inlet 52 57 62 59 52 5 41 65 Radiated 49 5 51 42 37 3 Outlet 45 54 64 7 73 71 67 59 77 CVB-24/18 N 245W Inlet 45 52 61 66 61 53 5 4 68 Radiated 45 49 54 55 5 43 37 27 59 Outlet 49 58 66 71 74 72 66 59 78 CVB-24/24 N 245W Inlet 49 63 67 62 54 49 4 7 Radiated 49 53 51 44 36 29 61 Outlet 41 52 61 68 71 71 68 61 76 CVB-27/2 N 245W Inlet 41 5 58 64 59 53 51 42 66 Radiated 41 47 51 53 43 38 31 Outlet 47 58 67 74 77 77 74 67 82 CVB/4-27/2 N 373W Inlet 47 64 7 65 59 57 72 Radiated 47 53 57 59 54 49 44 37 62 Outlet 51 61 69 75 79 78 74 67 83 CVB-27/27 N 515W Inlet 51 59 66 71 67 57 73 Radiated 51 59 5 44 37 64 Outlet 49 63 67 71 74 76 72 65 8 CVB-32/24 N 55W Inlet 49 61 64 67 62 58 55 46 7 Radiated 49 58 57 51 42 35 62 Outlet 49 61 66 74 74 75 72 65 8 CVB-32/32 N 515W Inlet 49 59 63 7 62 57 55 46 71 Radiated 49 59 51 47 42 35 62 Outlet 57 69 71 78 82 81 77 7 86 CVT-38/38 N 22W Inlet 57 67 68 74 7 63 51 77 Radiated 57 64 61 63 59 53 47 4 69 64 Acoustic cabinet fans CVB / CVT
Performance curves qv: Airflow in m 3 /h. psf: Static pressure in Pa. Dry air at 2ºC and 7 mmhg. Sound pressure level at the inlet side, in db(a). Performance data in accordance with ISO 581 and AMCA 21-99 Standards. 14 CVB-18/18 N 72W CVB/4-18/18 N 147W 8 4 2 V 1 2 4 8 q v [m 3 /h] 43 45 45 8 4 3 25 2 15 5 V 5 5 3 2 2 4 8 14 q v [m 3 /h] 21 CVB-24/18 N 2W 21 CVB-24/18 N 245W 18 18 15 9 3 V 5 5 3 2 3 9 15 18 q v [m 3 /h] 15 9 3 V 4 8 1 2 q v [m 3 /h] 52 54 4 3 2 21 CVB-24/24 N 2W 21 CVB-24/24 N 245W 18 15 9 3 V 4 3 2 4 8 1 2 24 q v [m 3 /h] 51 53 18 15 9 3 V 5 4 3 2 5 15 2 25 q v [m 3 /h] 52 55 Acoustic cabinet fans CVB/CVT 641
Performance curves qv: Airflow in m 3 /h. psf: Static pressure in Pa. Dry air at 2ºC and 7 mmhg. Sound pressure level at the inlet side, in db(a). Performance data in accordance with ISO 581 and AMCA 21-99 Standards. CVB/4-24/24 N 373W 3 CVB-27/2 N 245W 5 25 4 3 2 V 8 4 2 5 15 2 25 q v [m 3 /h] 54 57 2 15 5 V 5 15 2 25 q v [m 3 /h] 51 52 5 4 3 2 3 CVB-27/2 N 515W 7 CVB/4-27/2 N 373W 25 2 15 5 V 8 4 2 5 15 2 25 3 q v [m 3 /h] 5 63 5 4 3 2 2 5 15 2 25 3 q v [m 3 /h] 58 58 8 4 3 CVB-27/27 N 245W 3 CVB-27/27 N 515W 25 2 15 5 V 8 4 2 5 15 2 25 3 q v [m 3 /h] 51 5 25 2 15 5 V 8 4 2 2 3 4 q v [m 3 /h] 51 55 59 642 Acoustic cabinet fans CVB/CVT
Performance curves qv: Airflow in m 3 /h. psf: Static pressure in Pa. Dry air at 2ºC and 7 mmhg. Sound pressure level at the inlet side, in db(a). Performance data in accordance with ISO 581 and AMCA 21-99 Standards. 7 CVB/4-27/27 N 55W 45 CVB-32/24 N 55W 5 4 3 2 V 9 3 5 15 2 25 3 q v [m 3 /h] 57 4 3 25 2 15 5 V 2 3 4 q v [m 3 /h] 53 55 1 8 4 45 CVT-32/24 N 1W 4 CVB-32/32 N 515W 4 3 25 2 15 5 2 15 5 2 3 4 5 q v [m 3 /h] 58 62 64 3 25 2 15 5 V 2 3 4 q v [m 3 /h] 54 57 8 4 45 4 3 25 2 15 5 CVT-32/32 N 1W 63 25 2 15 5 2 3 4 5 7 q v [m 3 /h] 68 66 5 4 3 2 CVT-38/38 N 22W 4 3 2 2 4 8 q v [m 3 /h] 59 62 Acoustic cabinet fans CVB/CVT 643
DIMENSIONS (mm) CVB/CVT 18 to 32 CVT 38/38 A 65 65 C H B L L 88 Ø5 Ø5 775 F E 3 775 4 = Ø5 95 = M x N: Inlet flange/ M = Width x N = Height (see mounting types sketch). Model A B C G J K Ø L M 18/18 455 441 325 436 422 25 245 24/18 5 521 58 4 536 532 355 282 24/24 5 521 58 4 536 532 355 282 27/2 5 581 558 45 586 572 4 322 27/27 5 581 558 45 586 572 4 322 32/24 685 669 8 5 636 652 5 376 32/32 685 669 8 5 636 652 5 376 Mounting options CRC ACOPEL F4 N Standard circular flange APC CVB ACOPEL F4 N KSE KSE SIL CBR KAD APC Round outlet protection CBR Rectangular flange CRC Circular reducer ACOPEL F4 N Circular flexible connector KAD Rectangular flexible coupling KSE Flexible supports 644 Acoustic cabinet fans CVB / CVT
Mounting accessories MBE Electric heater. MBW Hot water coil. SIL Sound attenuators. CBR Rectangular duct connectors Can be used instead of the circular spigots supplied as standard. Model Flange Dimensions flange CVB-18/18 CBR-18 x 18 233 X 222 CVB-24/18 CBR 24 x 18 233 X 2 CVB-24/24 CBR 24 x 24 3 X 2 CVB-27/2 CBR 27 x 2 265 X 289 CVB-27/27 CBR 27 x 27 334 X 289 CVB-32/24 CBR 32 x 24 39 X 341 CVB-32/32 CBR 32 x 32 395 X 341 CRC Circular reducers To enable the connection of a smaller diameter ducting. Model Nominal reductions available (mm) CVB-18 CRC 25/2 CVB-24 CRC 355/315 CRC 355/25 CVB-27 CRC 4/355 CRC 4/315 CRC 4/25 CVB / T-32 CRC 5/45 CRC 5/4 CRC 5/315 ACOPEL F4 N Circular flexible connector. Model CVB-18 CVB-24 CVB-27 CVB/T-32 Circular Supply and extraction air ACOPEL F4-25/1N ACOPEL F4-355/1N ACOPEL F4-4/1N ACOPEL F4-5/1N KSE Flexible supports Rubber anti-vibration mounts to reduce vibration and noise transmission to the installation. (1KSE = set of 4 supports per bag) Model Type KSE CVB-18 KSE 45 CVB-24 KSE 45 CVB-27 KSE 45 CVB / T-32 KSE 45 APC Round outlet guards Discharge protection guards for direct connection to the inlet-outlet flange (please see pages. Mounting Accessories) Model Type of protection guard Nominal Ø diameter CVB-18 APC-25 25 CVB-24 APC-355 355 CVB-27 APC-4 4 CVB/T-32 APC-5 5 Acoustic cabinet fans CVB / CVT 645
Electrical accessories REB Single phase electronic speed controllers. RMB/RMT Single and three phase auto transformer speed controllers. PARO/MARCHA 5P and 8P Electrical isolation switch. - Switch ON-OFF 5P - Switch ON-OFF 8P REB-5 Single phase electronic speed controllers. VFKB IP65 Adjustable frequency drives for three phase motors from,37 to 4 kw 23 V or 4 V. VFTM IP54 Adjustable frequency drives for three phase motors from,37 to 15 kw. 646 Acoustic cabinet fans CVB / CVT