Nordyne O4HD-091A-14-FA-DV Installation, Operation And Maintenance Manual page 14

Table A-8 Direct Drive Blower Characteristics ECM Motor
Furnace Model
O4HD-070A-V-FA
O4HD-091A-V-FA
O4HD-105A-V-FA
Blower
100-10
DD
Motor
HP
1/2 HP
ECM
Motor
FLA
7.7
AT
60°F
Continuous
Fan
500 - 700
CFM RANGE
Heating
0.28 - 0.48
inches w.c.
825 - 1250
Cooling
0.5 inches
W.C.
600 - 1400
TIP: These Formulae will assist with the design of the ductwork and the determination of
airflow delivew:
CFM = Bonnet Output /(I.OgJx System Tetuloe_at.u_e Rise (ATJ)
System Tempeiatu_e Rise (AT)= B ozJnet Out.put/(i .0gJx CFM)
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