Carrier 48NLT - Manual (Page 17)

Table 5 — Air Delivery (Cfm) at Indicated Temperature Rise and Rated Heating input
NOMINAL SIZE
HEATING UNIT TEMPERATURE RISE (T)
INPUT (Btuh) 20 25 30 35 40 45 50 55 60 65 70 75 80
NLT018,024,030 40,000 - - 987 846 740 658 592 538 493 - - - -
NHT024; NMT030 60,000 - - - - - 987 888 808 740 683 634 592 -
NLT036,042 60,000 - - 1481 1269 1111 987 888 808 740 - - - -
NHT030; NMT036,042 80,000 - - - - - 1316 1185 1077 987 911 846 790 -
NLT048 80,000 - 2370 1975 1693 1481 1316 1185 1077 - - - - -
NLT060 80,000 2962 2370 1975 1693 1481 1316 1185 - - - - - -
NET036,042 96,000 - - - - 1777 1580 1422 1292 1185 1096 1015 - -
NHT036,042; NMT048 100,000 - - - 2116 1851 1646 1481 1346 1234 1139 - - -
NMT060 100,000 - - 2469 2116 1851 1646 1481 1346 1234 - - - -
NVT036,042; NHT048 120,000 - - - - - - 1777 1616 1481 1367 1269 1185 1111
NHT060 120,000 - - - 2539 2222 1975 1777 1616 1481 1367 - - -
NVT048,060 144,000 - - - - - 2370 2133 1939 1777 1641 1523 1422 -
f
NOTE: Dashed areas of the table do not fall In the approved temperature rise range of the unit
Table 6 — Superheat Charging Table*
TEMP (F) 50 52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 12 14 17 20 23 26 29 32 35 37 40 42 45
60 7 10 12 15 18 21 24 27 30 33 35 38 40 43
65 — 6 10 13 16 19 21 24 27 30 33 36 38 41
70 - - 7 10 13 16 19 21 24 27 30 33 36 39
75 — - — 6 9 12 15 18 21 24 28 31 34 37
80 - - - - 5 8 12 15 18 21 25 28 31 35
85 - - - - - - 8 11 15 19 22 26 30 33
90 — — - — - 5 9 13 16 21 24 27 31
95 - - - - - - - 6 10 14 18 22 25 29
100 - - - - - - - - 8 12 15 20 23 27
105 - - - - - - - - 5 9 13 17 22 26
110 - - - - - - - - - 6 11 15 20 25
115 - - - - - - - - - - 8 14 18 23
•Superheat at suction service valve.
NOTE: Do not attempt to charge system under these conditions; refrigerant slugging may occur
Table 7 — Required Suction-Tube Temperature (F)*
TEMP (F) 61.5 64.2 67.1 70.0 73.0 76.0 79.2 82.4 85.7
0 35 37 39 41 43 45 47 49 51
2 37 39 41 43 45 47 49 51 53
4 39 41 43 45 47 49 51 53 55
6 41 43 45 47 49 51 53 55 57
8 43 45 47 49 51 53 55 57 59
10 45 47 49 51 53 55 57 59 61
12 47 49 51 53 55 57 59 61 63
14 49 51 53 55 57 59 61 63 65
16 51 53 55 57 59 61 63 65 67
16 53 55 57 59 61 63 65 67 69
20 55 57 59 61 63 65 67 69 71
22 57 59 61 63 65 67 69 71 73
24 59 61 63 65 67 69 71 73 75
26 61 63 65 67 69 71 73 75 77
28 63 65 67 69 71 73 75 77 79
30 65 67 69 71 73 75 77 79 81
32 67 69 71 73 75 77 79 81 83
34 69 71 73 75 77 79 81 83 85
36 71 73 75 77 79 81 83 85 87
38 73 75 77 79 81 83 85 87 89
40 75 77 79 81 83 85 87 89 91
•Temperature at suction service valve
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