Performance data – Greenheck Fan Centrifugal Roof Exhaust Fans NYB User Manual
Page 7
7
Model
Number
Motor
HP
Fan
RPM
CFM / Static Pressure in Inches wg
0
0.125
0.25
0.3
0.375
0.5
0.625
0.75
0.875
1
NYB-180-4
1/4
580
CFM
2478
2220
1933
1793
1424
BHP
0.12
0.14
0.14
0.15
0.14
640
CFM
2734
2500
2248
2142
1954
BHP
0.17
0.18
0.19
0.19
0.20
700
CFM
2991
2775
2552
2457
2308
1964
BHP
0.22
0.23
0.25
0.25
0.25
0.25
NYB-180-3
1/3
765
CFM
3268
3070
2873
2787
2655
2411
2050
BHP
0.28
0.30
0.32
0.32
0.33
0.33
0.32
NYB-180-5
1/2
820
CFM
3503
3318
3138
3059
2938
2732
2482
2010
BHP
0.35
0.37
0.39
0.39
0.40
0.41
0.41
0.38
880
CFM
3760
3587
3419
3351
3239
3049
2842
2580
BHP
0.43
0.45
0.47
0.48
0.49
0.50
0.51
0.50
NYB-180-7
3/4
940
CFM
4016
3854
3696
3633
3534
3358
3178
2971
2706
BHP
0.53
0.55
0.57
0.58
0.59
0.60
0.61
0.62
0.61
1005
CFM
4294
4142
3993
3935
3847
3685
3518
3350
3148
2894
BHP
0.64
0.67
0.69
0.70
0.72
0.73
0.74
0.75
0.75
0.75
NYB-240-3
1/3
425
CFM
4375
3869
3244
2885
BHP
0.21
0.23
0.24
0.23
475
CFM
4890
4449
3933
3701
3222
BHP
0.29
0.32
0.33
0.34
0.33
NYB-240-5
1/2
500
CFM
5147
4728
4249
4047
3650
BHP
0.34
0.37
0.39
0.39
0.39
545
CFM
5610
5226
4803
4621
4336
3641
BHP
0.44
0.47
0.49
0.50
0.51
0.49
NYB-240-7
3/4
575
CFM
5919
5555
5163
4993
4731
4178
BHP
0.51
0.55
0.58
0.58
0.59
0.59
625
CFM
6434
6098
5751
5598
5361
4947
4383
BHP
0.66
0.70
0.73
0.74
0.75
0.76
0.75
NYB-240-10
1
650
CFM
6691
6368
6041
5894
5669
5283
4784
4053
BHP
0.74
0.78
0.81
0.83
0.84
0.86
0.85
0.80
685
CFM
7052
6745
6440
6304
6095
5731
5332
4807
BHP
0.86
0.91
0.94
0.96
0.98
0.99
1.01
0.99
NYB-240-15
1
1
⁄
2
730
CFM
7515
7227
6941
6825
6629
6294
5949
5524
5013
BHP
1.05
1.09
1.13
1.15
1.17
1.19
1.21
1.21
1.19
785
CFM
8081
7813
7547
7440
7271
6966
6649
6327
5911
5454
BHP
1.30
1.35
1.40
1.41
1.44
1.47
1.49
1.51
1.51
1.48
Performance certified is for installation type A: free inlet, free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects of a
birdscreen.
Performance Data
Model NYB-180 & NYB-240
0
1000
2000
3000
4000
5000
6000
7000
0
50
100
150
200
250
300
DO
NO
T S
EL
EC
T
TO
T
HE
L
EF
T
O
F
TH
IS
S
YS
TE
M
C
U
R
VE
0
500
1000
1500
2000
2500
3000
3500
4000
4500
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Static Pr
essur
e in. wg
cfm
NYB-180
m
3
/hr
Static Pr
essur
e Pa
RPM
HP
Density 0.075 lb/ft³
3/4 hp
1/2 hp
1/3 hp
1/4 hp
1005
940
880
820
765
700
640
580
0
2
4
6
8
10
12
0
50
100
150
200
250
300
DO
NO
T S
EL
EC
T
TO
T
HE
L
EF
T
O
F
TH
IS
S
YS
TE
M
C
U
R
VE
0
1
2
3
4
5
6
7
8
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Static Pr
essur
e in. wg
cfm x 1000
NYB-240
m
3
/hr x 1000
Static Pr
essur
e Pa
RPM
HP
Density 0.075 lb/ft³
1 1/2 hp
3/4 hp
1/3 hp
1/2 hp
1 hp
785
730
685
650
625
575
545
500
475
425