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 ****7.611.916.2 19.0 21.7 24.5 27.2 30.0
100 SPH ****6.210.2 14.1 17.4 20.7 23.9 26.4 29.0
105 SPH *****8.512.1 15.9 19.6 23.4 25.6 27.9
110 SPH *****6.28.612.8 17.1 21.3 24.1 26.9
115 SPH *******9.814.5 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 ****8.211.915.5 17.8 20.0 22.3 23.1 24.0
95 SPH *****8.012.0 14.7 17.5 20.2 21.5 22.8
100 SPH *****6.69.912.7 15.4 18.1 19.9 21.6
105 SPH ******7.910.6 13.4 16.1 18.3 20.4
110 SPH *******7.610.8 14.0 16.6 19.2
115 SPH ********8.312.0 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.
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