Fixed Orifice Fed Indoor Coil
Charging by Superheat Table
Cooling Mode

Indoor Outdoor Ambient
WB DB &
R/H		 55 60 65 70 75 80 85 90 95 100 105 110 115
56 60
65
70
75
80		 78
57
41
29
20		 17
18
19
21
22		 12
14
15
16
18		 8
9
10
11
14		 5
5
5
7
9		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5
58 60
65
70
75
80		 89
67
49
34
24		 22
23
23
23
24		 18
18
18
19
20		 13
14
14
14
16		 9
9
10
10
12		 5
5
5
6
8		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5
60 65
70
75
80
85		 76
57
41
30
21		 24
25
26
27
28		 20
21
22
23
25		 16
17
18
19
21		 8
9
10
12
14		 5
5
6
8
10		 5
5
5
5
6		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5
62 65
70
75
80
85		 85
64
49
36
26		 21
24
26
26
27		 17
20
22
22
24		 13
16
18
19
20		 9
12
15
15
17		 5
8
11
12
13		 5
5
7
8
10		 5
5
5
5
6		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5
64 70
75
80
85
90		 72
56
42
31
24		 30
31
32
33
34		 26
28
29
30
31		 23
24
25
26
27		 19
21
22
23
24		 15
17
19
20
21		 12
14
16
17
18		 8
10
13
13
14		 5
7
9
10
11		 5
5
6
7
8		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5		 5
5
5
5
5
66 70
75
80
85
90		 81
63
48
36
28		 32
33
35
35
36		 29
29
32
32
33		 26
26
29
29
30		 22
23
26
26
27		 19
20
23
23
24		 15
16
20
20
21		 12
13
17
17
18		 9
13
14
14
15		 5
10
11
11
12		 5
7
8
8
9		 5
5
5
5
6		 5
5
5
5
5		 5
5
5
5
5
68 70
75
80
85
90		 90
70
54
42
32		 35
36
36
38
39		 32
33
34
35
36		 29
30
31
32
33		 26
26
28
30
31		 23
23
25
27
28		 09
20
23
24
25		 16
17
20
21
22		 13
14
17
18
19		 10
11
14
15
17		 7
8
12
13
14		 5
5
9
10
11		 5
5
6
7
8		 5
5
5
5
5
70 75
80
85
90		 79
62
48
38		 38
38
41
42		 36
36
38
39		 33
33
36
37		 30
31
33
34		 27
28
30
32		 24
26
28
29		 21
23
25
27		 19
21
23
24		 16
18
20
21		 13
16
18
19		 10
13
15
16		 7
11
13
14		 5
8
10
11
72 75
80
85
90
95		 88
68
54
42
33		 41
41
42
43
43		 38
38
40
40
40		 36
36
38
38
38		 33
34
35
35
35		 31
31
33
33
33		 28
29
30
30
31		 26
27
28
29
29		 23
24
25
26
27		 20
22
23
24
24		 18
20
21
21
22		 15
17
18
19
20		 13
15
16
17
18		 10
13
13
14
15
74 75
80
85
90
95		 96
76
60
48
38		 43
43
44
44
45		 41
41
41
42
43		 39
39
39
40
40		 36
37
37
38
38		 34
35
35
35
36		 32
32
33
33
33		 29
30
31
31
31		 27
28
29
29
29		 25
26
26
26
27		 22
24
24
24
25		 20
22
22
22
22		 18
19
20
20
20		 15
18
18
18
18
76 80
85
90
95		 84
67
54
43		 45
46
47
49		 43
44
46
47		 42
42
44
45		 40
41
42
43		 38
39
40
41		 36
37
38
40		 34
35
36
38		 32
33
34
36		 30
31
32
34		 28
29
31
32		 27
27
29
31		 25
25
27
29		 23
23
25
27
78 80
85
90
95		 92
74
59
48		 48
48
50
51		 46
47
48
50		 44
45
47
49		 43
43
45
47		 41
41
44
46		 39
40
42
45		 38
38
41
43		 36
36
39
42		 34
34
37
41		 33
33
36
39		 31
31
34
37		 29
30
33
36		 27
28
31
35
80 85
90
95		 80
65
53		 50
51
53		 49
50
51		 47
48
50		 46
47
49		 44
46
47		 43
44
46		 41
43
44		 40
41
43		 39
40
41		 37
39
40		 36
37
39		 34
36
37		 33
34
36
Notes: All information based on 400 CFM/Ton

Charge within 2ºF ± of superheat indicated.

Recommended minimum superheat is 5°F.

Superheat temperature measurements should be taken within 3 feet of the compressor suction line connection.

R/H - Approximate % of indoor relative humidity.

WB - Indoor wet bulb temperature °F.

DB - Indoor dry bulb temperature °F.

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