Thermo Pride OH6FA072D48B Installation And Operation Manual page 31

Heating Speed Set-ups
OH6FA072DV4
BTUH
Fan
Control
SW 1
Switch Heating
Settings CFM
3-OFF
740
2-OFF
1-OFF
3-OFF
812
2-OFF
1-ON
3-OFF
883
2-ON
1-OFF
Factory
SW1 3-OFF
968
Switch 2-ON
Settings 1-ON
3-ON
1054
2-OFF
1-OFF
3-ON
1153
2-OFF
1-ON
3-ON
1267
2-ON
1-OFF
3-ON
1424
2-ON
1-ON
= Recommended Heating Speed Setting
Low Fire Med Fire
60,000 72,000
Aprox. Rise Aprox. Rise Aprox. Rise
0 0
(F ) (F ) (F
o
75
o o
68 82
o o
63 76
o o
57 69
o
63
o
58
Figure 18-1: ECM blower motor speed chart
28
Furnace Motor Current
Draw (Amps/ / Watts) vs.
External Static Pressure (in W.C.)
High Fire
90,000
0
) 0.2
0.9/75 1.4/123
1.0/86 1.5/136
1.1/95 1.6/143
o
86 1.2/110 1.8/165
o
79 1.4/128 2.0/183
o
72 1.7/153 2.4/221
o
66 2.1/192 2.7/252
o
58 2.8/263 3.4/325
0.4 0.6
1.7/156
1.9/172
2.2/199
2.5/233
2.6/244
2.9/267
3.2/310
4.1/394