Carrier WeatherMaker 48TC Series Product Data page 35
Carrier gas heat/electric cooling packaged rooftop 3 to 15 nominal tons
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Also See for WeatherMaker 48TC Series:
- Service and maintenance instructions (112 pages) ,
- Installation instructions manual (64 pages) ,
- User's information manual (8 pages)
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Table 14 – COOLING CAPACITIES
48TC04 (3 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN SUBCOOLING MODE
Temp (F) Air Ent
Condenser (Edb)
TC
40.6
SHC
21.6
75
kW
TC
37.0
SHC
17.7
85
kW
TC
33.5
SHC
13.7
95
kW
TC
29.9
SHC
105
kW
TC
26.3
SHC
115
kW
48TC04 (3 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE
Temp (F) Air Ent
Condenser (Edb)
1050
TC
14.7
SHC
80
kW
TC
15.1
SHC
75
kW
TC
15.5
70
SHC
kW
TC
16.2
SHC
10.2
60
kW
TC
17.0
SHC
11.9
50
kW
TC
17.7
40
SHC
13.7
kW
LEGEND
Edb --- Entering Dry--- Bulb
Ewb --- Entering Wet--- Bulb
kW
--- Compressor Motor Power Input
Idb
--- Leaving Dry--- Bulb
Iwb
--- Leaving Wet--- Bulb
SHC --- Sensible Heat Capacity (1000 Btuh) Gross
TC
--- Total Capacity (1000 Btuh) Gross
1- - STAGE COOLING
Air Entering Evaporator --- CFM
80 dry bulb
72 wet bulb
900
1200
1500
43.2
45.3
23.9
25.6
2.0
2.0
2.0
39.6
41.7
20.2
22.2
2.3
2.3
2.3
36.0
38.1
16.6
18.8
2.6
2.6
2.6
32.4
34.5
9.8
12.9
15.3
2.9
2.9
2.9
28.8
30.9
5.8
9.2
11.9
3.2
3.2
3.2
Air Entering Evaporator --- CFM
75 dry bulb
62.5 wet bulb (50% relative)
1200
1350
15.5
16.2
6.7
7.6
8.5
2.0
2.0
2.0
15.8
16.4
7.5
8.4
9.2
1.9
1.9
1.9
16.1
16.7
8.4
9.3
10.0
1.9
1.9
1.9
16.8
17.3
10.9
11.6
1.8
1.8
1.8
17.5
17.9
12.6
13.2
1.7
1.7
1.7
18.1
18.5
14.3
14.8
1.7
1.7
1.7
80 dry bulb
67 wet bulb
900
1200
1500
37.0
39.4
41.3
25.6
27.7
29.3
2.0
2.0
2.0
33.6
36.0
37.9
22.7
25.0
26.9
2.3
2.3
2.3
30.2
32.5
34.4
19.7
22.4
24.4
2.5
2.5
2.5
26.8
29.1
31.0
16.8
19.7
22.0
2.8
2.8
2.8
23.3
25.7
27.5
13.8
17.0
19.5
3.1
3.1
3.1
75 dry bulb
64 wet bulb (55% relative)
1050
1200
1350
15.9
16.7
17.4
4.8
5.7
6.6
2.0
2.0
2.0
16.2
17.0
17.6
5.8
6.7
7.5
2.0
2.0
2.0
16.6
17.3
17.9
6.9
7.7
8.5
1.9
1.9
1.9
17.2
17.8
18.3
8.9
9.7
10.4
1.8
1.8
1.8
17.9
18.4
18.8
11.0
11.6
12.2
1.8
1.8
1.8
18.6
19.0
19.3
13.0
13.6
14.1
1.7
1.7
1.7
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
t
= t
–
ldb
edb
t
= Wet--- bulb temperature corresponding to enthalpy of air
lwb
leaving evaporator coil (h
total capacity (Btuh)
h
= h
–
lwb
ewb
Where: h
= Enthalpy of air entering evaporator coil
ewb
35
80 dry bulb
62 wet bulb
900
1200
33.4
35.6
29.6
31.6
2.0
2.0
30.2
32.3
27.7
29.9
2.3
2.3
26.9
29.1
25.7
28.2
2.5
2.5
23.6
25.8
23.8
26.5
2.8
2.8
20.4
22.5
21.9
24.8
3.1
3.1
75 dry bulb
65.3 wet bulb (60% relative)
1050
1200
16.9
17.7
3.2
4.1
2.0
2.0
17.2
18.0
4.4
5.2
2.0
2.0
17.5
18.2
5.5
6.4
1.9
1.9
18.1
18.7
7.8
8.6
1.9
1.9
18.7
19.2
10.1
10.8
1.8
1.8
19.3
19.7
12.4
13.0
1.7
1.7
1.10 x cfm
)
lwb
4.5 x cfm
3 TONS
1500
37.4
33.1
2.0
34.1
31.6
2.3
30.8
30.1
2.5
27.5
28.6
2.8
24.2
27.1
3.1
1350
18.4
5.0
2.0
18.6
6.0
2.0
18.8
7.1
1.9
19.2
9.3
1.9
19.6
11.4
1.8
20.1
13.5
1.7
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