YORK INTERNATIONAL
48
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr
311
373
435
478
STD. AIR
kW
RPM
kW
RPM
kW
RPM
kW
RPM
13592
2.6
810
3.0
873
3.4
933
3.9
992
20388
5.6
924
6.1
976
6.6
1025
7.2
1072
27184
1.4
1055
11.2
1104
12.0
1150
12.7
1196
33980
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr
62
124
187
249
STD. AIR
kW
RPM
kW
RPM
kW
RPM
kW
RPM
13592
1.2
498
1.6
598
1.9
675
2.3
744
20388
3.7
694
3.9
732
4.5
804
5.9
867
27184
8.4
906
8.8
930
9.2
957
9.6
996
33980
16.6
1141
17.7
1161
Exhaust Fan Data
TABLE 20 –
50 THROUGH 65 TON EXHAUST FAN DATA (CONT’D)
NOTE:
* Grey areas indicate operation in motor service factor.
TABLE 20 –
50 THROUGH 65 TON 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 23 to get the total
static pressure applied to the exhaust fan. Based on
the exhaust fan air flow and total static pressure, deter-
mine the brake horsepower and RPM of the exhaust
fan.