Thermo Pride OD6FA072D48R Installation And Operation Manual page 34

For PSC systems, the ½ hp motor is equipped with 5 speeds. The unit is set for mid-fire temp rise @
65ºF. See table for proper blower motor set up:
Furnace Airflow (CFM) vs. External Static pressure (in. WC.)
Speed Tap\
Static Pressure
Low
ML
MH
High
Furnace Motor Current Draw (Amps) vs. External Static pressure (in. WC.)
Low
ML
MH
High
High Fire Temperature Rise vs. External Static pressure (in. WC.)
Speed Tap\
Static Pressure
Low
ML
MH
High
Mid Fire Temperature Rise vs. External Static pressure (in. WC.)
Speed Tap\
Static Pressure
Low
ML
MH
High
Low Fire Temperature Rise vs. External Static pressure (in. WC.)
Speed Tap\
Static Pressure
Low
ML
MH
High
Speed vs. color code for PSC Motor:
Low = Orange
M. Low = Red
Med = Blue
M. High = Yellow
High = Black
0.1 0.2
930 915
1155 1152 1130
1442 1432 1418
1802 1762 1705
3.28 3.1 3.02
4.18 4.02 3.91
5.44 5.17 4.95
6.61 6.36 6.04
0.1 0.2
90 91
72 72
58 58
46 47
0.1 0.2
72 73
58 58
46 47
37 38
0.1 0.2
60 61
48 48
39 39
31 32
Figure 19: Heating speed by input
0.3 0.4
912 910 822
1126 1085
1382 1334
1635 1569
2.91 2.64
3.74 3.59
4.72 4.43
5.73 5.46
0.3 0.4
91 92 101
74 74
59 60
49 51
0.3 0.4
73 73
59 59
47 48
39 41
0.3 0.4
61 61
49 49
39 40
33 34
31
0.5 0.6 0.7
774 730
1042 920
1293 1230
1493 1428
2.49 2.36
3.34 2.95
4.21 3.95
5.17 4.9
0.5 0.6 0.7
108 114
77 80 91
62 64 68
53 56 58
0.5 0.6 0.7
81 86 91
61 64 72
50 52 54
42 45 47
0.5 0.6 0.7
68 72 76
51 53 60
42 43 45
35 37 39