Carrier 48TC 07 - Page 4

4
IMPORTANT: Do NOT change units equipped with the
VFD option to operate at less than the preset 66% minimum
Hertz (Hz) setting. For example, do not change a unit
equipped with a standard static motor to operate at less than
40 Hz (which is 66% of its 60 Hz rating).
Tables 2-10 list the minimum recommended cfm per fan motor
type (single speed or 2-speed) for the units covered in this
document.
Table 2 — 48TC Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
48TC 07 1800 1800 1188
48TC 08 2250 2250 1485
48TC 09 2550 2873 1896
48TC 12 3000 3380 2231
48TC 14 3600 4225 2789
48TC 16 4500 5625 3713
48TC 17 4500 4500 2970
48TC 20 5250 5250 3465
48TC 24 6000 6000 3960
48TC 28 7500 8450 5577
48TC 30 8250 8250 5445
Table 3 — 50TC Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
SPEED FAN
MOTOR (AT
LOW SPEED)
50TC 07 1800 1800 1188
50TC 08 2250 2250 1485
50TC 09 2550 2873 1896
50TC 12 3000 3380 2231
50TC 14 3600 4225 2789
50TC 16 4500 5625 3713
50TC 17 4500 4500 2970
50TC 20 5250 5250 3465
50TC 24 6000 6000 3960
50TC 28 7500 8450 5577
50TC 30 8250 8250 5445
Table 4 — 50TCQ Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
50TCQ 07 1800 1800 1188
50TCQ 08 2250 2535 1673
50TCQ 09 2550 2873 1896
50TCQ 12 3000 3000 1980
50TCQ 14 3750 4225 2789
50TCQ 17 4500 5070 3346
50TCQ 24 6000 6760 4462
Table 5 — 48HC Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
48HC 07 1800 1800 1300
48HC 08 2250 2535 1673
48HC 09 2550 2550 1683
48HC 11 3000 3380 2231
48HC 12 3000 3380 2231
48HC 14 3750 4225 2789
48HC 17 4500 5070 3346
48HC 20 5250 5915 3904
48HC 24 6000 7500 4950
48HC 28 7500 8450 5577
Table 6 — 50HC Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
50HC 07 1800 1800 1200
50HC 08 2250 2535 1673
50HC 09 2550 2550 1683
50HC 11 3000 3380 2231
50HC 12 3000 3380 2231
50HC 14 3750 4225 2789
50HC 17 4500 5070 3346
50HC 20 5250 5915 3904
50HC 24 6000 7500 4950
50HC 28 7500 8450 5577
Table 7 — 50HCQ Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
50HCQ 07 1800 1800 1188
50HCQ 08 2250 2250 1485
50HCQ 09 2550 2873 1896
50HCQ 12 3000 3380 2231
Table 8 — 40RUA Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
40RUA 07 1800 2030 1338
40RUA 08 2250 2535 1673
40RUA 12 3000 3380 2231
40RUA 14 3750 4225 2789
40RUA 16 4500 4500 2970
40RUA 25 6000 6000 3960
40RUA 28 7500 8450 5577
40RUA 30 9000 9295 6135
Table 9 — 40RUS Min cfm Per Fan Motor Type
MODEL-SIZE
SINGLE SPEED
FAN MOTOR
2-SPEED FAN
MOTOR (AT
HIGH SPEED)
2-SPEED FAN
MOTOR (AT
LOW SPEED)
40RUS 08 2250 2535 1673
40RUS 10 2550 2873 1896
40RUS 12 3000 3380 2231
40RUS 14 3750 4225 2789
40RUS 16 4500 4500 2970
40RUS 25 6000 6000 3960
40RUS 28 7500 8450 5577
40RUS 30 9000 9295 6135