20
Airflow Data
Table 5. Nominal Heating Airflow Rates & Temperature Rises (° F)
MODEL
NUMBER
HEATING
RISE
RANGE
(BTU/H)
MOTOR
TAP
EXTERNAL STATIC PRESSURE DROP - INCHES WATER COLUMN
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
(ACFM)
(°F)
RISE
4YCL4024A1055A
35-65
Tap T1** 996
41
898
46
800
52
750
55
726
57
632
65
552
75
470
88
Tap T2
Tap T3
Tap T4
Tap T5
4YCL4030A1070A
35-65
Tap T1
1243
42
1158
45
1076
49
984
53
906
58
845
62
704
75
686
77
Tap T2
1319
40
1235
43
1166
45
1079
49
1003
52
934
56
782
67
718
73
Tap T3** 1393
38
1310
40
1255
42
1172
45
1099
48
1021
51
955
55
809
65
Tap T4
Tap T5
4YCL4036A1070A
35-65
Tap T1
1243
42
1158
45
1076
49
984
53
906
58
845
62
782
67
686
77
Tap T2** 1393
38
1310
40
1255
42
1172
45
1099
48
1021
51
860
61
809
65
Tap T3
Tap T4
Tap T5
4YCL4042A1100A
35-65
Tap T1
999
75
928
81
868
86
806
93
741
101
696
108
629
119
564
133
Tap T2
1390
54
1337
56
1290
58
1235
61
1173
64
1131
66
1083
69
1030
73
Tap T3** 1513
50
1461
51
1402
53
1355
55
1297
58
1243
60
1202
62
1147
65
Tap T4
Tap T5
4YCL4048A1100A
35-65
Tap T1
999
75
928
81
868
86
806
93
741
101
696
108
629
119
564
133
Tap T2
1390
54
1337
56
1299
58
1235
61
1173
64
1131
66
1083
69
1030
73
Tap T3** 1513
50
1461
51
1402
53
1355
55
1297
58
1243
60
1120
67
1147
65
Tap T4
Tap T5
4YCL4060A1100A
35-65
Tap T1
1589
47
1498
50
1391
54
1271
59
1165
64
1063
71
995
75
899
83
Tap T2** 1803
42
1710
44
1621
46
1513
50
1416
53
1320
57
1241
60
1146
65
Tap T3
Tap T4
Tap T5
** Denotes factory set heating speed
Tap 1 is fan only
(†) Part number may contain a C or X.
Data is shown without a filter
Heat rise: Btu/h (Input) = CFM *
Δ
T * 1.081
Δ
T = (Btu/h * 0.83) / (CFM * 1.081)
To comply with government mandated efficiency standards, two openings are required for airflows above
1,600 CFM.
Temperature rises in the table are approximate. Actual temperature rises may vary.
Individual cells shaded in gray indicate a temperature rise outside the recommended range.
To comply with government mandated efficiency standards, speed settings which do not have data are not
allowed in HEAT mode.
Data is ACFM (Actual Cubic Feet per Minute)