Table 4A — Superheat Charging Table, 50HS018
TEMP (F)
OUTDOOR
AIR
INDOOR AIR — 675 CFM
Indoor Air — Ewb (F)
54
56
58
60
62
64
66
68
70
72
74
76
65
SPH
39.9
39.9
40.0
40.0
42.7
45.4
48.1
48.3
48.5
48.8
48.6
48.4
70
SPH
34.9
34.9
34.9
35.0
38.3
41.6
45.0
45.6
46.1
46.7
46.6
46.4
75
SPH
29.9
29.9
29.9
29.9
33.9
37.9
41.9
42.8
43.7
44.7
44.5
44.4
80
SPH
26.3
26.3
26.3
26.3
30.3
34.3
38.3
39.8
41.2
42.6
42.7
42.9
85
SPH
22.8
22.8
22.8
22.8
26.8
30.8
34.8
36.7
38.6
40.6
41.0
41.3
90
SPH
20.8
20.8
20.8
20.8
24.2
27.7
31.3
34.0
36.7
39.4
39.6
39.8
95
SPH
18.7
18.7
18.7
18.7
21.7
24.7
27.7
31.2
34.7
38.2
38.2
38.3
100
SPH
16.6
16.6
16.6
16.6
19.1
21.6
24.1
28.1
32.1
36.1
36.5
36.9
105
SPH
14.6
14.6
14.6
14.6
16.6
18.6
20.6
25.1
29.6
34.1
34.8
35.6
110
SPH
12.5
12.5
12.5
12.5
14.0
15.5
17.0
21.5
26.0
30.5
32.8
35.0
115
SPH
10.5
10.5
10.5
10.5
11.5
12.5
13.5
18.0
22.5
27.0
30.7
34.5
LEGEND
Ewb — Entering Wet Bulb
SPH — Superheat at Compressor (F)
Table 4B — Superheat Charging Table, 50HS024
TEMP (F)
OUTDOOR
AIR
INDOOR AIR — 800 CFM
Indoor Air — Ewb (F)
54
56
58
60
62
64
66
68
70
72
74
76
65
SPH
18.7
19.5
20.3
21.2
24.6
28.1
31.5
33.3
35.0
36.8
37.1
37.4
70
SPH
14.6
15.4
16.3
17.1
20.7
24.3
28.0
30.2
32.5
34.7
35.2
35.8
75
SPH
10.5
11.4
12.2
13.0
16.8
20.6
24.4
27.2
29.9
32.7
33.4
34.1
80
SPH
9.4
9.9
10.3
10.7
14.6
18.5
22.3
25.1
27.9
30.6
31.9
33.1
85
SPH
*
*
8.4
8.4
12.4
16.3
20.3
23.1
25.8
28.6
30.3
32.1
90
SPH
*
*
*
5.9
10.0
14.1
18.3
21.0
23.8
26.5
28.8
31.0
95
SPH
*
*
*
*
7.6
11.9
16.2
19.0
21.7
24.5
27.2
30.0
100
SPH
*
*
*
*
6.2
10.2
14.1
17.4
20.7
23.9
26.4
29.0
105
SPH
*
*
*
*
*
8.5
12.1
15.9
19.6
23.4
25.6
27.9
110
SPH
*
*
*
*
*
6.2
8.6
12.8
17.1
21.3
24.1
26.9
115
SPH
*
*
*
*
*
*
*
9.8
14.5
19.3
22.6
25.8
LEGEND
Ewb — Entering Wet Bulb
SPH — Superheat at Compressor (F)
*Do not attempt to charge system under these conditions — refrig-
erant slugging may occur.
Table 4C — Superheat Charging Table, 50HS030
TEMP (F)
OUTDOOR
AIR
INDOOR AIR — 1000 CFM
Indoor Air — Ewb (F)
54
56
58
60
62
64
66
68
70
72
74
76
65
SPH
21.0
21.0
21.0
21.0
24.1
27.2
30.3
31.0
31.8
32.5
32.0
31.5
70
SPH
16.5
16.5
16.5
16.5
20.4
24.3
28.2
29.0
29.7
30.5
30.3
30.2
75
SPH
12.0
12.0
12.0
12.0
16.7
21.5
26.2
26.9
27.7
28.4
28.7
29.0
80
SPH
10.5
10.5
10.5
10.5
14.5
18.6
22.6
23.9
25.1
26.3
26.7
27.1
85
SPH
9.0
9.0
9.0
9.0
12.4
15.7
19.1
20.8
22.6
24.3
24.8
25.2
90
SPH
*
*
*
*
8.2
11.9
15.5
17.8
20.0
22.3
23.1
24.0
95
SPH
*
*
*
*
*
8.0
12.0
14.7
17.5
20.2
21.5
22.8
100
SPH
*
*
*
*
*
6.6
9.9
12.7
15.4
18.1
19.9
21.6
105
SPH
*
*
*
*
*
*
7.9
10.6
13.4
16.1
18.3
20.4
110
SPH
*
*
*
*
*
*
*
7.6
10.8
14.0
16.6
19.2
115
SPH
*
*
*
*
*
*
*
*
8.3
12.0
15.0
18.0
LEGEND
Ewb — Entering Wet Bulb
SPH — Superheat at Compressor (F)
*Do not attempt to charge system under these conditions — refrig-
erant slugging may occur.
19