Carrier 48TC 07 Installation, Start-Up And Service Instructions Manual page 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
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
48TC 07 1800
48TC 08 2250
48TC 09 2550
48TC 12 3000
48TC 14 3600
48TC 16 4500
48TC 17 4500
48TC 20 5250
48TC 24 6000
48TC 28 7500
48TC 30 8250
Table 3 — 50TC Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
50TC 07
1800
50TC 08
2250
50TC 09
2550
50TC 12
3000
50TC 14
3600
50TC 16
4500
50TC 17
4500
50TC 20
5250
50TC 24
6000
50TC 28
7500
50TC 30
8250
Table 4 — 50TCQ Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
50TCQ 07
1800
50TCQ 08
2250
50TCQ 09
2550
50TCQ 12
3000
50TCQ 14
3750
50TCQ 17
4500
50TCQ 24
6000
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1188
2250 1485
2873 1896
3380 2231
4225 2789
5625 3713
4500 2970
5250 3465
6000 3960
8450 5577
8250 5445
2-SPEED FAN SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1188
2250 1485
2873 1896
3380 2231
4225 2789
5625 3713
4500 2970
5250 3465
6000 3960
8450 5577
8250 5445
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1188
2535 1673
2873 1896
3000 1980
4225 2789
5070 3346
6760 4462
Table 5 — 48HC Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
48HC 07 1800
48HC 08 2250
48HC 09 2550
48HC 11 3000
48HC 12 3000
48HC 14 3750
48HC 17 4500
48HC 20 5250
48HC 24 6000
48HC 28 7500
Table 6 — 50HC Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
50HC 07 1800
50HC 08 2250
50HC 09 2550
50HC 11 3000
50HC 12 3000
50HC 14 3750
50HC 17 4500
50HC 20 5250
50HC 24 6000
50HC 28 7500
Table 7 — 50HCQ Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
50HCQ 07 1800
50HCQ 08 2250
50HCQ 09 2550
50HCQ 12 3000
Table 8 — 40RUA Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
40RUA 07 1800
40RUA 08 2250
40RUA 12 3000
40RUA 14 3750
40RUA 16 4500
40RUA 25 6000
40RUA 28 7500
40RUA 30 9000
Table 9 — 40RUS Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
40RUS 08 2250
40RUS 10 2550
40RUS 12 3000
40RUS 14 3750
40RUS 16 4500
40RUS 25 6000
40RUS 28 7500
40RUS 30 9000
4
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1300
2535 1673
2550 1683
3380 2231
3380 2231
4225 2789
5070 3346
5915 3904
7500 4950
8450 5577
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1200
2535 1673
2550 1683
3380 2231
3380 2231
4225 2789
5070 3346
5915 3904
7500 4950
8450 5577
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
1800 1188
2250 1485
2873 1896
3380 2231
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
2030 1338
2535 1673
3380 2231
4225 2789
4500 2970
6000 3960
8450 5577
9295 6135
2-SPEED FAN 2-SPEED FAN
MOTOR (AT MOTOR (AT
HIGH SPEED) LOW SPEED)
2535 1673
2873 1896
3380 2231
4225 2789
4500 2970
6000 3960
8450 5577
9295 6135