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COOLING CAPACITIES, UNITS WITH MOISTUREMISER OPTION (cont)
48HJ012 (10 TONS)
Temp (F)
3000/0.03
Air Ent
Condenser
(Edb)
72
67
TC
134.3 122.5
75
SHC
60.0
76.1
kW
7.03
6.84
TC
127.6 115.4
85
SHC
51.5
68.8
kW
7.96
7.86
TC
120.9 108.3
95
SHC
43.0
61.5
kW
8.88
8.87
TC
112.0
99.9
105
SHC
36.1
54.1
kW
10.0
10.0
TC
103.0
91.5
115
SHC
29.2
46.7
kW
11.2
11.1
TC
94.1
83.1
125
SHC
22.3
39.3
kW
12.35 12.15
48HJ014 (12
1
/
TONS)
2
Temp (F)
3750/0.08
Air Ent
Condenser
(Edb)
72
67
TC
156.3 144.2
75
SHC
66.6
87.6
kW
9.28
8.98
TC
147.6 136.2
85
SHC
58.7
80.0
kW
10.29
9.93
TC
138.9 128.2
95
SHC
50.8
72.3
kW
11.29 10.87
TC
129.1 117.8
105
SHC
42.1
63.5
kW
12.59 12.14
TC
119.2 107.3
115
SHC
33.5
54.8
kW
13.90 13.40
TC
109.4
96.9
125
SHC
24.8
46.0
kW
15.20 14.67
LEGEND
BF
— Bypass Factor
Edb — Entering Dry Bulb
Ewb — Entering Wet Bulb
kW
— Compressor Motor Power Input
SHC — Sensible Heat Capacity (1000 Btuh) Gross
TC
— Total Capacity (1000 Btuh) Gross
Temp (F) Air Entering Evaporator — Cfm/BF
3200/0.03
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
111.4 135.8 124.3 113.0 138.4 129.5 123.5
93.7
61.3
79.1
97.4
6.72
7.01
6.89
6.77
104.6 128.9 118.1 107.0 132.5 121.5 116.6
87.2
53.9
72.0
91.2
7.59
7.94
7.78
7.51
97.8
121.9 111.8 101.0 126.5 113.4 109.7
80.6
46.5
64.8
84.9
8.46
8.86
8.66
8.26
90.4
113.1 103.2
93.4
73.8
38.8
57.8
78.9
9.6
10.0
9.8
9.5
83.1
104.3
94.6
85.9
66.9
31.2
50.7
72.9
10.8
11.2
11.0
10.7
75.7
95.5
86.0
78.3
60.1
23.5
43.7
66.8
11.94 12.38 12.13 11.92 12.48 12.27 12.25
Temp (F) Air Entering Evaporator — Cfm/BF
4300/0.09
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
132.3 160.0 148.4 136.2 162.8 150.6 138.2
112.1
72.5
94.8 121.3
8.59
9.35
9.08
8.80
123.7 150.7 140.1 127.2 154.1 140.8 127.9
103.8
63.5
86.5 112.2
9.58
10.36 10.08
9.77
115.1 141.4 131.8 118.3 145.3 131.0 117.6
95.5
54.4
78.1 103.2
10.57 11.37 11.08 10.74 11.40 11.50
105.8 131.7 121.0 108.7 134.8 119.9 107.7
86.5
45.4
69.0
93.9
11.82 12.67 12.34 11.96 12.70 12.67 12.28
96.4
122.1 110.2
99.0
77.5
36.4
59.8
84.7
13.08 13.98 13.59 13.18 14.00 13.83 13.41
87.1
112.4
99.4
89.3
68.5
27.4
50.7
75.5
14.33 15.28 14.85 14.40 15.30 15.00 14.54
4000/0.04
5000/0.04
72
67
62
72
143.3 136.5 130.2
68.0
89.5 109.4
75.2
7.10
6.92
6.77
7.15
137.2 128.0 122.9
61.0
82.7 102.4
68.6
8.02
7.84
7.69
8.02
131.1 119.4 115.5
53.9
75.9
95.4
62.0
8.94
8.76
8.60
8.89
117.2 105.0 100.7
122.1 110.5 105.9
45.6
68.2
86.8
53.0
10.1
9.9
9.8
10.1
107.8
96.7
91.7
113.0 101.6
37.3
60.6
78.3
44.0
11.3
11.1
11.0
11.3
98.5
88.3
82.7
104.0
29.0
52.9
69.7
35.0
12.53 12.30 12.28
5000/0.11
6250/0.13
72
67
62
72
169.0 157.5 145.6
76.9
99.6 127.5
87.0
9.40
9.18
8.9
9.43
161.1 148.0 135.4
68.7
91.0 118.1
77.7
10.40 10.34 10.03
10.45 10.18
153.1 138.4 125.1
60.5
82.3 108.7
68.5
11.1
11.46 11.17 10.83
140.9 126.9 115.9
51.2
74.2 101.3
57.7
12.79 12.46 12.08
124.2 108.8
97.8
128.7 115.3 106.7
41.9
66.1
93.8
46.8
14.11 13.75 13.33
113.7
97.7
87.8
116.5 103.8
32.6
58.0
86.4
36.0
15.44 15.04 14.58
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t ldb = t edb –
t lwb = Wet-bulb temperature corresponding to enthalpy of air
leaving evaporator coil (h lwb )
h lwb = h ewb –
Where: h ewb = Enthalpy of air entering evaporator coil.
3. The SHC is based on 80 F edb temperature of air entering evapo-
rator coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
67
62
100.9 123.3
7.03
6.88
93.6 115.9
7.94
7.79
86.2 108.4
8.85
8.69
78.3
99.7
10.0
9.9
96.4
70.3
90.9
11.2
11.1
92.7
86.8
62.4
82.2
67
62
115.5 142.7
9.18
8.93
107.8 133.2
9.88
100.0 123.7
90.2 113.6
80.5 103.5
97.5
70.7
93.5
sensible capacity (Btuh)
1.10 x cfm
total capacity (Btuh)
4.5 x cfm
31
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