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Table 1 8 – COOLING CAPACITIES 1--STAGE COOLING 5 TONS
580J06 (5 TONS) --- UNIT WITH PERFECT HUMIDITY SYSTEM IN SUBCOOLING MODE
A ir E nte r in g E va po ra tor --- C F M
Temp (F) Air Ent
Condenser (Edb)
80 dry bulb 80 dry bulb 80 dry bulb
72 wet bulb 67 wet bulb 62 wet bulb
1750 2000 2250 1750 2000 2250 1750 2000 2250
75
TC 73.1 78.7 84.5 63.2 66.9 70.8 53.2 55.1 57.1
SHC 35.3 37.2 38.8 42.0 43.7 45.3 48.7 50.3 51.8
kW 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
85
TC 67.6 71.2 75.0 59.1 61.2 63.3 50.6 51.1 51.5
SHC 27.9 30.0 31.9 36.3 38.3 40.1 44.8 46.6 48.2
kW 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8
95
TC 62.1 63.8 65.5 55.1 55.4 55.8 48.0 47.0 46.0
SHC 20.5 22.9 24.9 30.7 32.9 34.8 40.9 42.9 44.7
kW 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3
105
TC 56.6 56.3 56.0 51.0 49.6 48.3 45.4 43.0 40.5
SHC 13.1 15.7 18.0 25.0 27.5 29.6 36.9 39.2 41.2
kW 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4.7 4.7
115
TC 51.1 48.8 46.5 46.9 43.9 40.7 42.8 39.0 35.0
SHC 5.8 8.6 11.0 19.4 22.0 24.4 33.0 35.5 37.7
kW 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2
580J06 (5 TONS) --- UNIT WITH PERFECT HUMIDITY SYSTEM IN HOT GAS REHEAT MODE
A ir E nte r in g E va po ra tor --- C F M
Temp (F) Air Ent
Condenser (Edb)
75 dry bulb 75 dry bulb 75 dry bulb
62.5 wet bulb (50% relative) 64 wet bulb (55% relative) 65.3 wet bulb (60% relative)
1750 2000 2250 1750 2000 2250 1750 2000 2250
80
TC 23.0 24.4 25.6 24.7 26.2 27.4 26.3 27.7 29.0
SHC 5.3 6.1 6.8 3.2 4.0 4.7 1.4 2.2 2.9
kW 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
75
TC 23.3 24.6 25.7 25.0 26.3 27.5 26.4 27.8 29.0
SHC 5.1 5.8 6.5 3.1 3.9 4.5 1.4 2.2 2.8
kW 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
70
TC 23.5 24.8 25.9 25.2 26.4 27.5 26.6 27.9 29.0
SHC 4.8 5.5 6.2 3.0 3.7 4.3 1.4 2.1 2.8
kW 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0
60
TC 24.1 25.2 26.1 25.6 26.7 27.7 26.9 28.0 29.0
SHC 4.3 5.0 5.5 2.8 3.4 3.9 1.4 2.0 2.6
kW 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0
50
TC 24.7 25.6 26.4 26.1 27.0 27.8 27.2 28.2 29.0
SHC 3.8 4.4 4.8 2.5 3.1 3.5 1.4 2.0 2.4
kW 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1
40
TC 25.3 26.0 26.7 26.5 27.3 27.9 27.6 28.3 29.0
SHC 3.3 3.8 4.2 2.3 2.8 3.1 1.4 1.9 2.3
kW 3.1 3.1 3.1 3.2 3.2 3.2 3.2 3.2 3.2
LEGEND
Edb --- En tering Dry --- Bulb
Ewb --- Entering Wet --- Bu lb
kW --- Compressor Motor Power Input
Idb --- L eaving Dry --- Bulb
Iwb --- Leaving Wet --- Bulb
SHC --- Sensible Heat Capacity (1000 Btuh) Gross
TC --- Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t
ldb
=t
edb
–
sensible capacity (Btuh)
1.10 x cfm
t
lwb
= Wet---bulb temperature corresponding to enthalpy of air
leaving evaporator coil (h
lwb
)
h
lwb
=h
ewb
–
total capacity (Btuh)
4.5 x cfm
Where: h
ewb
= Enthalp y of air entering evaporator coil
580J