43
TEMPMASTER
FORM TPM3-EG1 (518)
Exhaust Fan Data
EXHAUST FAN MOTOR SIZING INSTRUCTIONS
In order to determine the proper exhaust fan motor size, add the return duct static pres-
sure to the appropriate damper pressure drop value in Table 15 on page 40 to get the
total static pressure applied to the exhaust fan. Based on the exhaust fan airflow and total
static pressure, determine the brake horsepower (BHP) and revolutions per minute (RPM)
of the exhaust fan.
TABLE 19 - TMAL120–150: 32-INCH FORWARD-CURVED EXHAUST FAN
CFM
STD AIR
TOTAL STATIC PRESSURE (INCHES OF WATER COLUMN)
0.25 0.5 0.75 1.0 1.25 1.5 1.75 2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
24,000 241 5.1 276 6.1 303 6.8 334 8.0 364 9.3 391 10.4 417 11.5 442 12.7
26,000 254 6.3 290 7.4 315 8.2 341 9.2 371 10.6 398 11.9 423 13.2 446 14.4
28,000 268 7.7 303 8.9 329 9.9 351 10.7 377 12.0 405 13.5 430 15.0 453 16.3
30,000 283 9.3 315 10.6 343 11.7 363 12.6 386 13.7 411 15.2 436 16.8 460 18.4
32,000 298 11.1 328 12.4 356 13.8 377 14.8 397 15.7 418 17.0 442 18.7 466 20.5
34,000 313 13.1 341 14.5 369 16.0 391 17.2 409 18.2 428 19.3 450 20.8 472 22.6
36,000 328 15.4 354 16.8 382 18.5 405 19.9 423 21.0 440 22.0 459 23.3 479 25.0
38,000 344 18.0 368 19.4 394 21.1 418 22.8 437 24.1 454 25.1 470 26.3 488 27.7
40,000 360 20.9 382 22.3 407 24.0 431 25.9 451 27.4 467 28.6 483 29.7 499 31.0
42,000 376 24.1 396 25.5 420 27.2 443 29.2 464 30.9 481 32.4 497 33.6 511 34.8
44,000 392 27.6 411 29.0 433 30.8 456 32.7 477 34.7 504 37.2 511 37.7 525 39.0
46,000 409 31.4 426 32.8 447 34.6 468 36.6 490 38.7 509 40.7 524 42.2 539 43.6
48,000 425 35.7 442 37.0 461 38.8 481 40.8 502 43.0 521 45.2 538 47.0 552 48.5
50,000 442 40.2 457 41.5 475 43.3 495 45.4 515 47.6 534 49.9 551 52.0 566 53.8
NOTE: For performance at operating points not included in these tables, consult your local TempMaster representative.
To Next Page
Loading...