Bryant 580J 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 2-9 list the minimum recommended cfm per fan
motor type (single speed or 2-speed) for the units covered
in this document.
Table 2 — 580J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
580J*07 1800
580J*08 2250
580J*09 2550
580J*12 3000
580J*14 3600
580J*16 4500
580J*17 4500
580J*20 5250
580J*24 6000
580J*28 7500
580J*30 8250
Table 3 — 558J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
558J*07
1800
558J*08
2250
558J*09
2550
558J*12
3000
558J*14
3600
558J*16
4500
558J*17
4500
558J*20
5250
558J*24
6000
558J*28
7500
558J*30
8250
Table 4 — 548J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
548J*07
1800
548J*08
2250
548J*09
2550
548J*12
3000
548J*14
3750
548J*17
4500
548J*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 — 581J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
581J*07 1800
581J*08 2250
581J*09 2550
581J*11 3000
581J*12 3000
581J*14 3750
581J*17 4500
581J*20 5250
581J*24 6000
581J*28 7500
Table 6 — 551J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
551J*07 1800
551J*08 2250
551J*09 2550
551J*11 3000
551J*12 3000
551J*14 3750
551J*17 4500
551J*20 5250
551J*24 6000
551J*28 7500
Table 7 — 549J Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
549J*07 1800
549J*08 2250
549J*09 2550
549J*12 3000
Table 8 — 524J***A Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
524J*07A 1800
524J*08A 2250
524J*12A 3000
524J*14A 3750
524J*16A 4500
524J*25A 6000
524J*28A 7500
524J*30A 9000
Table 9 — 524J***H Min cfm Per Fan Motor Type
SINGLE SPEED
MODEL-SIZE
FAN MOTOR
524J*07H 1800
524J*08H 2250
524J*12H 3000
524J*16H 4500
524J*25H 6000
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)
2030 1338
2535 1673
3380 2231
4500 2970
6000 3960