Exhaust Fan Data; Exhaust Fan Performance - York ECO HFC-410A User Manual

Exhaust Fan Data

EXHAUST FAN MOTOR SIZING INSTRUCTIONS
In order to determine the proper exhaust fan motor size, add the return duct static pressure to the appropriate damper
pressure drop value in Table 14 to get the total static pressure applied to the exhaust fan. Based on the exhaust fan
airfl ow and total static pressure, determine the brake horsepower and RPM of the exhaust fan.
TABLE 15 – FORWARD-CURVED FAN
CFM STD.
0.3
AIR
BHP
6000
8000
10000
12000
14000
16000 5
18000 6.8
20000 9.1
22000 11.8
24000 15.1
26000 18.9
NOTE: For performance at operating points not included in these tables, consult your local YORK representative.
JOHNSON CONTROLS
Total Static Pressure (inches of water column)
0.5
RPM BHP
528 5.7
579 7.7
632 10.1
685 13
739 16.4
794
0.8
RPM BHP
584 6.4
632 8.5
681 11.1
731 14.1
782 17.6
FORM 100.50-EG5 (108)
1
RPM BHP
5.4
633 7.2
678 9.3
725 12
772 15.1
821 18.8
RPM
645
680
721
765
811
858
25