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Heating Speed Set-ups
OL6*A072DV5
Furnace Motor Current
Draw (Amps/ / Watts) vs.
External Static Pressure (in W.C.)
Low Fire Med Fire High Fire
BTUH 60,000 72,000 90,000
Fan
Control
SW 1
Switch
Settings
Heating
CFM
Aprox. Rise
(F
0
)
Aprox. Rise
(F
0
)
Aprox. Rise
(F
0
) 0.2 0.4 0.6
3-OFF
2-OFF
1-OFF
755
73
o
1.2/107 1.6/151 2.1/208
3-OFF
2-OFF
1-ON
826
66
o
80
o
1.3/120 1.9/173 2.4/232
3-OFF
2-ON
1-OFF
898
61
o
74
o
1.5/139 2.1/199 2.6/246
Factory
SW1
Switch
Settings
3-OFF
2-ON
1-ON
983
56
o
67
o
84
o
1.8/169 2.4/234 3/290
3-ON
2-OFF
1-OFF
1068
62
o
77
o
2.0/190 2.7/249 3.4/332
3-ON
2-OFF
1-ON
1168
57
o
71
o
2.4/222 3.1/303 4.0/392
3-ON
2-ON
1-OFF
1282
64
o
2.8/277 3.8/377 4.5/452
3-ON
2-ON
1-ON
1397
60
o
4.0/378 4.7/474 5.6/552
= Recommended Heating Speed Setting
Figure 18-1: ECM blower motor speed chart