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28
Heating Speed Set-ups (Single Stage)
Low Fire Med Fire High Fire
BTUH 60,000 72,000 90,000
Fan
Control
SW 1
Switch
Settings
Heating
CFM
Approx.
Rise (F
0
)
Approx.
Rise (F
0
)
Approx.
Rise (F
0
)
Static
Pressure
in W.C.
Watts Amps
0.2” 93 1.07
3-OFF
2-OFF
1-OFF
755
73
0.5” 162 1.80
0.02” 109 1.25
3-OFF
2-OFF
1-ON
826
66 80
0.5” 174 1.92
0.02” 123 1.40
3-OFF
2-ON
1-OFF
898
61 74
0.5” 203 2.20
0.02” 146 1.63
Factory
SW1 Switch
Settings
3-OFF
2-ON
1-ON
983
56 67 84
0.5” 226 2.45
0.02” 176 1.95
3-ON
2-OFF
1-OFF
1068
62 77
0.5” 259 2.78
0.02” 204 2.23
3-ON
2-OFF
1-ON
1168
57 71
0.5” 297 3.16
0.02” 249 2.70
3-ON
2-ON
1-OFF
1282
64
0.5” 358 3.76
0.02” 321 3.42
3-ON
2-ON
1-ON
1424
58
0.5” 455 4.73
Figure 18-1: ECM blower motor speed chart
= Recommended Heating Speed Setting