Thermo Pride OH6FA072D48B Installation And Operation Manual page 37

Oil fired furnace
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OH8FA119D60
ALTERATIONS REQ'D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE
COOLING UNIT
36,000
42,000
48,000
60,000
Speed Tap\ Static
Pressure
Low
ML
MH
High
Low
ML
MH
High
Speed Tap\ Static
Pressure
Low
ML
MH
High
Speed Tap\ Static
Pressure
Low
ML
MH
High
Speed Tap\ Static
Pressure
Low
ML
MH
High
Speed vs. color code for PSC Motor:
Low = Red
Med-Low = Blue
Med-High = Yellow
High = Black
HTG Speed by Input
Low
Mid
Fire
Fire
L/ML
ML/MH
L/ML
ML/MH
L/ML
ML/MH
L/ML
ML/MH
Furnace Airflow (CFM) vs. External Static pressure (in. WC.)
0.1
0.2
1254
1254
1473
1464
1733
1731
2300
2243
Furnace Motor Current Draw (Amps)/Watts vs. External Static pressure (in. WC.)
6.6/648
6.6/648
7.6/772
7.2/739
9.0/908
9.0/905
12.5/1270
11.7/1200
11.2/1150
High Fire Temperature Rise vs. External Static pressure (in. WC.)
0.1
0.2
98
98
83
84
71
71
53
55
Mid Fire Temperature Rise vs. External Static pressure (in. WC.)
0.1
0.2
88
88
75
75
64
64
48
49
Low Fire Temperature Rise vs. External Static pressure (in. WC.)
0.1
0.2
75
75
64
64
54
54
41
42
Figure 19B: Heating speed by input
Recommended CLG Speed
High
Fire
MH/H
MH/H
MH/H
MH/H
0.3
0.4
1251
1246
1460
1437
1718
1705
2224
2166
6.4/639
6.2/630
6.0/612
7.1/730
6.8/704
6.6/683
8.7/888
8.5/871
8.3/842
10.7/1110
10.2/1060
0.3
0.4
98
99
84
86
72
72
55
57
0.3
0.4
88
89
75
77
64
65
50
51
0.3
0.4
75
75
64
65
55
55
42
43
34
Low (L)
Med Low (ML)
Med High (MH)
High (H)
0.5
0.6
0.7
1221
1189
1126
1415
1377
1329
1686
1660
1627
2099
2048
1754
5.8/592
5.4/565
6.3/661
6.1/641
8.0/818
7.7/796
9.7/1020
9.2/969
0.5
0.6
0.7
101
103
109
87
89
93
73
74
76
59
60
70
0.5
0.6
0.7
90
93
98
78
80
83
65
66
68
52
54
63
0.5
0.6
0.7
77
79
83
66
68
70
56
56
58
45
46
53

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