4
AttachingPowerExhausttotheReturnAirDuct:
GASKET AROUND FLANGE
SHEETMETAL SCREWS
Figure6–PowerExhaustInstalledonDuct
0
1000
2000
3000
4000
5000
0.1 0.2 0.3 0.4 0.5
EXHAUST AIRFLOW (cfm)
RETURN DUCT STATIC PRESSURE (in wc)
3 to 6 Ton Units
208/230V
3 to 6 Ton Units
460V
7½ to 12½ Ton Units
208/230V
7½ to 12½ Ton Units
460V
Figure7–PowerExhaustPerformance