Powerful centrifugal fans for universal use: The product ranges TEM and REM The fan ranges TEM and REM offered by Nicotra Gebhardt do present a large fan programme of single inlet centrifugal fans which are universally usable for many ventilation purposes either in HVAC or in machinery design industry and heavy duty installation business. The fans are available with forward curved impellers (TEM) or with impellers (REM) equipped with backward curved blades. The fans are equipped with IEC flanged (B5) standard motors, protection IP55, class F, and they are suitable for frequency inverter controlled operation. Benefits: compact design because of direct drive cost effective by maintenance-free operation speed controlled by frequency inverter universally usable due to different options, such as without brackets as a directly fitted unit for operation with vertical shaft arrangement with brackets for operation with horizontal shaft ATEX execution for explosion hazardous areas and applications Fan range TEM rated - Ex II 3G c IIB T3 Fan range REM rated - Ex II 2G c IIB T3 264
Nicotra Gebhardt TEM and REM The universal technology for various applications! TEM ranges Sizes from 16 up to 355 Volume flow up to 9 also available in 6Hz execution also available in ATEX execution 3G motor with PTC in flange execution Impeller with forward curved blades For applications in HVAC-facilities, big kitchen or for clean room technologie. REM ranges Sizes from 2 up to 63 Volume flow up to 2, also in available 6Hz execution also available in ATEX execution 2G motor with PTC in flange execution Impeller with backward curved blades For applications in the filter technologie, drying- and suction plants. The ranges TEM and REM For every application, the suitable fan: Version Description Figure TEM 1-16/-355 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with forward curved blades, without pedestal, for vertical or horizontal mounting. TEM 8-16/-355 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with forward curved blades, with pedestal, for horizontal mounting. REM 11-2/-63 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with backward curved aerofoil blades, without pedestal, for vertical or horizontal mounting. REM 18-2/-63 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with backward curved aerofoil blades, with pedestal, for horizontal mounting. REM 13-2/-63 Scroll casing stitch welded with discharge flange, epoxy coated, built-in impeller with backward curved aerofoil blades, without pedestal, for vertical or horizontal mounting. REM 19-2/-63 Scroll casing stitch welded with discharge flange, epoxy coated, built-in impeller with backward curved aerofoil blades, with pedestal, for horizontal mounting. REM 41-2/-45 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with backward curved blades, without pedestal, for vertical or horizontal mounting. REM 48-2/-45 Lap jointed scroll of galvanised sheet steel with discharge flange and built-in impeller with backward curved blades, with pedestal, for horizontal mounting. 265
Description Direct driven centrifugal fans / TEM/REM / Description Safety Performance data The fans are designed for installation in equipment and as standard are not equipped with protective guards. They should not be put into operation before all protective devices are fitted and connected! Protective measures must be carried out as set out in DIN EN ISO 121 "Safety of machinery - Basic concepts, general principles for design". If the application of the fan allows free access to the inlet and discharge apertures, safety devices must be put in place on the fan in accordance with DIN EN ISO 13857! Suitable safety guards are available as an optional extra. The performance curves of the fans are determined at the plenum test rig according to ISO 581, measured in installation "B". In the diagrams of all series, the total pressure increase and the dynamic pressure in relation to the flange crosssection at the discharge are represented in dependency on the volume. For closer determination of duty same unit performance curves (parabolas) are contained in the diagrams. The static pressure increase p sf with a connected discharge flange can be determined according to the following relation. p sf = All data are valid for the source density r 1 = 1,2kg/m³. Sound The noise measuring and evaluation is conducted according to DIN 45635-38 Noise measurement in machines: fans. In the diagrams the A-weighted sound power level of the fan is given on the performance curves as the emission size. The A weighted sound power level are identical for fan intake (L WA7 ) as well as for fan discharge (L WA4 ). The A-weighted sound pressure level L pa7/6 at a distance of 1 m at fan Inlet or discharge can be approximately determined by the following formula: L pa6/7 ~ L WA4/7-7dB The sound power levels in the individual octavos can be taken from the electronic catalogue proselecta II. Motors Electric connection The series of centrifugal fans, with single inlet are designed for the use in air handling and ventilation installations. The fans are suitable for conveying air and other non aggressive gases. The temperatures admitted for the fluid are from -2 C to +6 C. Standard motors of wellknown brands, type of protection IP55, thermal class F, are used. During commissioning and maintenance the detailed instructions provided by the motor manufacturer (type plate/motor operating instructions) must be followed, this also applies to the motor protection devices required onsite. The motors are equipped with PTC resistors/temperature sensors as standard. Motors with integrated frequency inverters may be supplied on request. The centrifugal fans are delivered ready for installation. The motor terminal box can be accessed easily. Electric installation must be carried out according to the applicable provisions in compliance with local regulations. A terminal board circuit diagram showing correct connection is enclosed with every motor. Updated circuit diagrams are also available online at www.nicotra-gebhardt.com. In case of operation with frequency inverters, always follow the respective operating instructions! 328
Description Direct driven centrifugal fans / TEM/REM / Description Explosion protection according to ATEX Fans for use in explosive atmospheres must comply with EC Directive 94/9/EG (ATEX 95). Equipment in Group II (all applications except mining) is categorised in accordance with the required degree of safety for designated use in equipment categories 1, 2 and 3. Depending on suitability, a distinction is in addition made between G (gas, vapours) and D (dust). Harmonised European standards and national guidelines must be observed. Equipment in class 2 and 3 is not subject to compulsory specifications nor to type testing. The manufacturer declares conformity with the EC directive. For the standard designs of our fans, the following ignition sources are essentially to be considered: Hot surfaces, e.g. due to heat of friction or seizure of a bearing or due to blockage of an impeller Rubbing-, grinding- or beating sparks, e. g. as a result of contact of the impeller with stationary components Sparks resulting from discharge of electrostatically loaded, non-conducting omponents, e. g. of plasticpanels, surfaces with strong layer thickness. Preconditions for operating: In the proximity of the motor, the temperature limits -2 C and +4 C must not be exceeded. The temperature limits of -2 C und +6 C for the flow medium must not be exceeded. If the temperature of the flow medium should exceed +6 C on the pressure side, then the fan must be switched off! The fans may only be employed with a horizontal shaft. The fans are to be protected against the falling-in or sucking-in of foreign objects. Protection guards must be ordered separately as an accessories. On the machine plate the max. permitted fan speed is indicated. Fans for operation in ex-hazardous areas are marked as such on the machine plate and they are accompanied by an EU conformity declaration and with operation and maintenance instructions The operation and maintenance instructions have strictly to be observed. 329
REM 4-2 Direct driven centrifugal fans / REM / Pa 12 L WA 1 83 db 79 [A4] 76 REM 4.-2-2D-7 4 V 5 Hz 8 78 6 4 82 2 4 8 12 16 Pa 28 L WA 67 db 63 [A5] REM 4.-2-4D-5 4 V 5 Hz 24 59 2 16 61 12 65 8 4 2 4 6 8 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 34
REM 4-2 Direct driven centrifugal fans / REM / Motor frequency motor 41-2-2D-7 [A4].37 2 71M 23/4 5 D/Y 1.73/1. 274 6 17 41-2-4D-5 [A5].18 4 63M 23/4 5 D/Y 1./.58 135 6 16 Motor frequency motor 48-2-2D-7 [A4].37 2 71M 23/4 5 D/Y 1.73/1. 274 6 23 48-2-4D-5 [A5].18 4 63M 23/4 5 D/Y 1./.58 135 6 22 Dimensions in mm, subject to change. REM 41-2 87+k2 1 9 Ø7 23 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 17 86 6 M6 1 1 431 128 159 181 161 192 214 198 193 284 482 21 LG RD REM 48-2 Ø7 214 192 23 431 21 1 9 161 1 1 128 159 181 6 Ø7. Ø25 Ø235 Ø255 284 193 545 13 25 87+k2 86 6 M6 13 25 198 329 354 99 13 183 ZSG 4 ZKE 11 ZKF 11 Ø1 277 ZKE 16 ZKF 16 512 311 261 545 311 59 261 512 311 261 545 131 164 59 311 LG LG 9 LG 27 RD RD 9 RD 27 35
REM 4-225 Direct driven centrifugal fans / REM / Pa L WA 14 12 86 db 82 [B4] 79 REM 4.-225-2D-1 4 V 5 Hz 1 8 81 6 85 4 2 4 8 12 16 2 24 Pa 3 L WA 7 db 66 [B5] 62 REM 4.-225-4D-5 4 V 5 Hz 2 64 68 1 2 4 6 8 1 12 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 36
REM 4-225 Direct driven centrifugal fans / REM / Motor frequency motor 41-225-2D-1 [B4].75 2 8M 23/4 5 D/Y 3.5/1.75 2855 6 22 41-225-4D-5 [B5].18 4 63M 23/4 5 D/Y 1./.58 135 6 18 Motor frequency motor 48-225-2D-1 [B4].75 2 8M 23/4 5 D/Y 3.5/1.75 2855 6 33 48-225-4D-5 [B5].18 4 63M 23/4 5 D/Y 1./.58 135 6 29 Dimensions in mm, subject to change. REM 41-225 11+k2 1 1 Ø1 256 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 19 95 6 M6 1 1 48 143 181 26 18 218 243 22 216 319 539 224 LG RD REM 48-225 Ø1 243 218 256 48 224 1 1 18 1 1 143 181 26 6 Ø7. Ø229 Ø259 Ø279 319 216 676 13 3 11+k2 95 6 M6 13 25 22 435 46 1 13 32 ZSG 4 ZKE 11 ZKF 11 Ø1 376 ZKE 16 ZKF 16 581 357 357 676 4 62 357 581 357 357 676 146 183 62 357 LG LG 9 LG 27 RD RD 9 RD 27 37
REM 4-25 Direct driven centrifugal fans / REM / Pa L WA 175 15 89 db 85 [C4] 82 REM 4.-25-2D-13 4 V 5 Hz 125 84 1 75 88 5 25 6 12 18 24 3 36 Pa 4 L WA 73 db 69 [C5] 65 REM 4.-25-4D-7 4 V 5 Hz 3 67 2 71 1 4 8 12 16 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 38
REM 4-25 Direct driven centrifugal fans / REM / Motor frequency motor 41-25-2D-13 [C4] 1.5 2 23/4 5 D/Y 5.7/3.3 286 6 34 41-25-4D-7 [C5].25 4 23/4 5 D/Y 1.33/.77 135 6 27 Motor frequency motor 48-25-2D-13 [C4] 1.5 2 23/4 5 D/Y 5.7/3.3 286 6 48 48-25-4D-7 [C5].25 4 23/4 5 D/Y 1.33/.77 135 6 41 Dimensions in mm, subject to change. REM 41-25 121+k2 1 1 Ø1 287 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 226 16 6 M6 1 1 532 16 199 224 21 24 265 247 244 356 63 245 LG RD REM 48-25 Ø1 265 24 287 532 245 1 1 21 1 1 16 199 224 6 Ø7. Ø256 Ø286 Ø36 356 244 78 13 3 121+k2 16 6 M6 13 25 247 545 57 15 13 32 ZSG 4 ZKE 11 ZKF 11 Ø1 446 ZKE 16 ZKF 16 597 352 352 78 429 676 352 597 352 352 78 164 25 676 352 LG LG 9 LG 27 RD RD 9 RD 27 39
REM 4-28 Direct driven centrifugal fans / REM / Pa L WA 2 92 db 88 85 [D4] REM 4.-28-2D-14 4 V 5 Hz 15 87 1 91 5 1 2 3 4 5 Pa 5 4 L WA 76 db 72 68 [D5] REM 4.-28-4D-7 4 V 5 Hz 7 3 2 74 1 4 8 12 16 2 24 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 31
REM 4-28 Direct driven centrifugal fans / REM / Motor frequency motor 41-28-2D-14 [D4] 2.2 2 9L 23/4 5 D/Y 8.1/4.7 288 6 44 41-28-4D-7 [D5].25 4 71M 23/4 5 D/Y 1.33/.77 135 6 33 Motor frequency motor 48-28-2D-14 [D4] 2.2 2 9L 23/4 5 D/Y 8.1/4.7 288 6 58 48-28-4D-7 [D5].25 4 71M 23/4 5 D/Y 1.33/.77 135 6 47 Dimensions in mm, subject to change. REM 41-28 121+k2 1 1 Ø1 32 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 237 12 8 M8 2 1 592 179 218 243 225 264 289 275 273 395 67 272 LG RD REM 48-28 Ø1 289 264 32 592 272 1 1 225 2 1 179 218 243 8 Ø9.5 Ø288 Ø322 Ø348 395 273 76 13 3 121+k2 12 8 M8 13 3 275 49 52 137 15 32 ZSG 4 ZKE 11 ZKF 11 Ø12 47 ZKE 16 ZKF 16 71 429 365 76 429 71 365 71 429 365 76 183 229 71 429 LG LG 9 LG 27 RD RD 9 RD 27 311
REM 4-315 Direct driven centrifugal fans / REM / Pa L WA 3 95 db 91 REM 4.-315-2D-19 4 V 5 Hz 25 88 [E7] 2 9 15 94 1 5 1 2 3 4 5 6 7 Pa 6 L WA 79 db 75 [E8] REM 4.-315-4D-1 4 V 5 Hz 71 4 73 77 2 5 1 15 2 25 3 35 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 312
REM 4-315 Direct driven centrifugal fans / REM / Motor frequency motor 41-315-2D-19 [E7] 4. 2 112M 4 5 D 8.1 293 6 72 41-315-4D-1 [E8].55 4 8M 23/4 5 D/Y 2.53/1.46 1395 6 42 Motor frequency motor 48-315-2D-19 [E7] 4. 2 112M 4 5 D 8.1 293 6 9 48-315-4D-1 [E8].55 4 8M 23/4 5 D/Y 2.53/1.46 1395 6 6 Dimensions in mm, subject to change. REM 41-315 14+k2 1 1 Ø1 358 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 269 132 8 M8 2 1 662 21 24 265 252 291 316 37 36 439 746 34 LG RD REM 48-315 Ø1 316 291 358 662 34 1 1 252 2 1 21 24 265 8 Ø9.5 Ø322 Ø356 Ø382 439 36 872 13 3 14+k2 132 8 M8 13 3 37 615 645 15 15 32 ZSG 4 ZKE 11 ZKF 11 Ø12 47 ZKE 16 ZKF 16 737 433 433 872 51 88 433 737 433 433 872 25 256 88 433 LG LG 9 LG 27 RD RD 9 RD 27 313
REM 4-355 Direct driven centrifugal fans / REM / Pa L WA 8 82 db 78 [F7] 74 REM 4.-355-4D-13 4 V 5 Hz 6 76 4 8 2 8 16 24 32 4 48 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 314
REM 4-355 Direct driven centrifugal fans / REM / Motor frequency motor 41-355-4D-13 [F7] 1.1 4 9S 23/4 5 D/Y 4.5/2.6 1415 6 54 Motor frequency motor 48-355-4D-13 [F7] 1.1 4 9S 23/4 5 D/Y 4.5/2.6 1415 6 72 Dimensions in mm, subject to change. REM 41-355 156+k2 2 1 Ø1 399 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 31 148 8 M8 2 1 732 225 264 289 284 323 348 342 342 486 828 333 LG RD REM 48-355 Ø1 348 323 399 732 333 2 1 284 2 1 225 264 289 8 Ø9.5 Ø361 Ø395 Ø421 486 342 984 13 3 156+k2 148 8 M8 13 3 342 615 645 167 15 32 ZSG 4 ZKE 11 ZKF 11 Ø12 47 ZKE 16 ZKF 16 831 948 578 92 831 948 229 288 92 LG LG 9 LG 27 RD RD 9 RD 27 315
REM 4-4 Direct driven centrifugal fans / REM / Pa 12 L WA 1 85 db 81 [G7] 77 REM 4.-4-4D-14 4 V 5 Hz 8 6 79 4 83 2 1 2 3 4 5 6 7 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 316
REM 4-4 Direct driven centrifugal fans / REM / Motor frequency motor 41-4-4D-14 [G7] 1.5 4 9L 23/4 5 D/Y 6./3.45 142 6 69 Motor frequency motor 48-4-4D-14 [G7] 1.5 4 9L 23/4 5 D/Y 6./3.45 142 6 87 Dimensions in mm, subject to change. REM 41-4 173+k2 2 1 Ø1 447 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 337 166 8 M8 3 1 318 357 382 815 252 291 316 383 384 542 925 368 LG RD REM 48-4 Ø1 382 357 447 815 368 2 1 318 3 1 252 291 316 6 Ø9.5 Ø44 Ø438 Ø464 542 384 14 13 3 173+k2 166 8 M8 13 3 383 615 645 184 15 32 ZSG 4 ZKE 11 ZKF 11 Ø12 47 ZKE 16 ZKF 16 866 14 578 961 866 14 256 322 961 LG LG 9 LG 27 RD RD 9 RD 27 317
REM 4-45 Direct driven centrifugal fans / REM / Pa 16 L WA 88 db 84 REM 4.-45-4D-17 4 V 5 Hz 12 8 [H4] 8 82 86 4 2 4 6 8 1 Density of media 1.2 kg/m³ Measured in installation B according to ISO 581 318
REM 4-45 Direct driven centrifugal fans / REM / Motor frequency motor 41-45-4D-17 [H4] 3. 4 1L 23/4 5 D/Y 1.9/6.3 1425 6 88 Motor frequency motor 48-45-4D-17 [H4] 3. 4 1L 23/4 5 D/Y 1.9/6.3 1425 6 11 Dimensions in mm, subject to change. REM 41-45 193+k2 2 112 Ø12 497 Motor k2 63 M 18 71 M 21 8 M 234 9 S 281 9 L 281 1 L 336 112 M 329 374 185 8 M8 3 112 95 284 328 358 357 41 431 427 429 68 135 48 LG RD REM 48-45 Ø12 431 41 497 95 48 2 112 357 3 112 284 328 358 6 Ø9.5 Ø453 Ø487 Ø513 68 429 1186 13 35 193+k2 185 8 M8 13 3 427 578 615 645 23 15 32 ZSG 4 ZKE 11 ZKF 11 Ø12 47 ZKE 16 ZKF 16 986 578 1186 578 658 185 986 578 578 1186 288 361 185 578 LG LG 9 LG 27 RD RD 9 RD 27 319