An Operation - Farr Gold Series Installation, Operation And Maintenance Manual

400.7 Fan Operation
Consult the information packet attached to your fan before proceeding with installation and wiring. If your
fan does not include an information packet contact the fan supplier. If Farr supplied your fan, contact Farr
Customer Service at (1-800-479-6801).
Trained and experienced personnel should make the selection of the fan that you require. The selection
of fan size is usually made from a fan performance table or a fan curve published by the fan
manufacturer. Refer to your General Dimensions drawing to determine the airflow rate and static pressure
required for your application. A performance table (Table 400.7.1) and fan curves (Figures 400.7.1-
400.7.9) for the standard fans provided by Farr have been included for reference when making changes
to your system. The static pressure performance curve (bold) designates the static pressure (left axis) at
a given airflow rate (horizontal axis). The brake horsepower curve (light) designates the actual
horsepower (right axis) required from the fan.
MODEL
DESIGNATION
NYB 126GI-1.0-60-8
NYB 146GI-1.5-60-10
NYB 15PLR-2.0-60-9
NYB 15PLR-3.0-60-9
NYB 18PLR-4.0-60-9
NYB 18PLR-6.0-60-9
NYB 18PLR-8.0-60-9
NYB 18PLR-10.0-60-9
NYB 20PLR-12.0-60-9
12.0
10.0
8.0
BRAKE HORSEPOWER
6.0
4.0
2.0
0.0
0 200
FAN PERFORMANCE
HP
5 6
3 NA 1320
5
5 2750 2580
7.5 4100 3894
10 4500 4415
15 6800 6622
20 9075 8829
25 11100 10816 10500 10187
30 13400 12800 12500 12200 11886 11550 11200 10750 10350
NYB 126GI-1.0-60-8
1000 CFM, 7.9" H
400 600
FLOW RATE (cfm)
STATIC PRESSURE (IN WATER)
7 8 9
1173 989 769
2440 2231 2022
3683 3368 3052
4225 4158 4000
6420 6237 6000
8575 8316 8000
9850
Table 400.7.1
O, 3500 RPM, 2.4 BHP
2
STATIC PRESSURE
800 1,000 1,200
Figure 400.7.1
10 11 12
360
1367 1228
1639
2473
3850 3600 3491
5775 5500 5236
7700 7300 6982
9433 9000 8552
1,400 1,600
13 14
1069 810
3234 2926
4851 4389
6468 5852
7924 7169
9830
4.0
3.5
3.0
2.5
2.0
1.5
1.0
1,800
44