Carrier 50TC - Page 34

34
Table 10 (cont.) COOLING CAPACITIES 1--STAGE COOLING 4 TONS
5 0 T C 0 5 ( 4 T O N S ) --- U N I T W I T H H U M I D I --- M I Z E R S Y S T E M I N H O T G A S R E H E A T M O D E
A i r E n t e r i n g E v a p o r a t o r --- C F M
Tem p ( F ) A ir E n t
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)
1200 1600 2000 1200 1600 2000 1200 1600 2000
80
TC 11.6 13.8 15.5 13.5 15.8 17.6 15.2 17.5 19.3
SHC --- 1 . 0 1.2 3.0 --- 3 . 1 --- 0 . 8 0.9 --- 4 . 8 --- 2 . 6 --- 0 . 9
kW 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
75
TC 12.5 14.6 16.2 14.3 16.4 18.1 15.9 18.1 19.8
SHC --- 0 . 7 1.4 3.0 --- 2 . 7 --- 0 . 6 1.1 --- 4 . 3 --- 2 . 2 --- 0 . 6
kW 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
70
TC 13.4 15.3 16.8 15.1 17.1 18.7 16.6 18.7 20.3
SHC --- 0 . 5 1.5 3.0 --- 2 . 3 --- 0 . 3 1.2 --- 3 . 8 --- 1 . 9 --- 0 . 3
kW 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
60
TC 15.1 16.8 18.1 16.7 18.4 19.8 18.1 19.9 21.2
SHC 0.0 1.7 3.1 --- 1 . 5 0.2 1.5 --- 2 . 8 --- 1 . 1 0.2
kW 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6
50
TC 16.9 18.3 19.4 18.3 19.8 20.9 19.6 21.0 22.2
SHC 0.6 2.0 3.1 --- 0 . 7 0.7 1.8 --- 1 . 8 --- 0 . 4 0.7
kW 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6
40
TC 18.7 19.8 20.7 19.9 21.1 22.0 21.0 22.2 23.2
SHC 1.1 2.2 3.1 0.1 1.2 2.1 --- 0 . 8 0.4 1.3
kW 2.6 2.6 2.6 2.7 2.7 2.7 2.7 2.7 2.7
50TC05 (4 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN SUBCOOLING MODE
A i r E n t e r i n g E v a p o r a t o r --- C F M
Tem p ( F ) A ir E n t
Condenser (Edb)
80 dry bulb 80 dry bulb 80 dry bulb
72 wet bulb 67 wet bulb 62 wet bulb
1200 1600 2000 1200 1600 2000 1200 1600 2000
75
TC 52.5 55.9 58.6 47.1 50.2 52.7 41.7 44.5 46.8
SHC 22.6 25.5 27.8 27.1 29.9 32.0 31.6 34.2 36.2
kW 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
85
TC 48.7 52.2 54.9 43.4 46.5 49.0 38.0 40.8 43.1
SHC 18.0 21.3 23.9 23.6 26.8 29.2 29.3 32.2 34.4
kW 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
95
TC 44.9 48.4 51.2 39.6 42.8 45.3 34.3 37.1 39.4
SHC 13.4 17.2 20.0 20.2 23.7 26.4 27.0 30.2 32.7
kW 3.4 3.4 3.4 3.3 3.3 3.3 3.3 3.3 3.3
105
TC 41.1 44.7 47.5 35.9 39.1 41.7 30.6 33.5 35.8
SHC 8.8 13.0 16.1 16.7 20.6 23.6 24.6 28.2 31.0
kW 3.8 3.8 3.8 3.7 3.7 3.7 3.7 3.7 3.7
115
TC 37.4 41.0 43.9 32.1 35.4 38.0 26.8 29.8 32.1
SHC 4.3 8.8 12.2 13.3 17.5 20.7 22.3 26.2 29.2
kW 4.2 4.2 4.2 4.2 4.2 4.2 4.1 4.1 4.1
125
TC 33.6 37.2 40.2 28.3 31.6 34.3 23.1 26.1 28.4
SHC --- 0 . 3 4.6 8.4 9.8 14.4 17.9 20.0 24.2 27.5
kW 4.6 4.6 4.6 4.6 4.6 4.6 4.5 4.5 4.5
LEGEND
Edb --- E n t e r i n g D r y --- B u l b
Ewb --- E n t e r i n g W e t --- B u l b
kW --- Compressor Motor Power Input
Idb --- L e a v i n g D r y --- B u l b
Iwb --- L e a v i n g W e t --- B u l b
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
= Enthalpy of air entering evaporator coil
50TC