Filter
Top Products
13
TABLE A-4: DIRECT DRIVE BLOWER CHARACTERISTICS
CFM
External Static Pressure – inches w.c.
FURNACE
MODEL
BLOWER
MOTOR
HP
MOTOR
FLA
TEMP.
RISE
(∆
∆∆
∆T)
SPEED
0.20 0.30 0.40 0.50 0.60
High 1469 1386 1308 1213 1123
Med-High 1377 1308 1224 1143 1063
Med-Low 1088 1075 1038 985 916
P3DHX12F08001 GT10 ½ 7.7 70° - 90°F
Low 721 721 712 688 649
High 1752 1691 1659 1593 1525
Med-High 1454 1454 1417 1379 1300
Med-Low 975 944 912 879 844
P2DHX16F12001 G12-10 1/2 7.7 70° - 90°F
Low 631 593 552 515 486
High 1810 1740 1675 1585 1510
Med-High 1570 1540 1495 1445 1375
Med-Low 1090 1080 1070 1065 1050
P2LBX16F14501 G10 1/2 7.7 70° - 90°F
Low 710 700 690 665 650
TABLE A-5: BELT DRIVE BLOWER CHARACTERISTICS
CFM
External Static Pressure – Inches water column
Furnace Model Motor HP
Motor
FLA
∆
∆∆
∆T
Blower
Blower
Pulley
Motor
Pulley
Turns
Out
0.20 0.30 0.40 0.50 0.60
0 2274 2080 1847 1532 1099
2 2107 1927 1712 1420 1019
4 1939 1775 1576 1308 939
P4LBX20F19001 3/4 HP 13.0 85°F G12 7 x ¾
6 1772 1622 1441 1196 859
TIP:
These formulae will assist with the design of the ductwork and the determination of airflow delivery:
() ()
CFM
Bonnet Output
x SystemTemperature Rise
SystemTemperature Rise
Bonnet Output
xCFM
= =
1085 1085. .