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Performance data (cont)
COOLING CAPACITIES, UNITS WITH MOISTUREMISER OPTION (cont)
48HJ008 (7
1
/
TONS)
2
Temp (F) Air Entering Evaporator — Cfm/BF
Temp (F)
2250/0.10
Air Ent
Condenser
Temp (F) Air Entering Evaporator — Ewb
(Edb)
72
67
TC
98.4
91.1
75
SHC
44.5
55.4
kW
5.05
4.96
TC
94.2
85.8
85
SHC
39.7
51.3
kW
5.74
5.65
TC
89.9
80.5
95
SHC
34.8
47.2
kW
6.42
6.33
TC
84.6
75.3
105
SHC
30.0
42.5
kW
7.26
7.16
TC
79.2
70.1
115
SHC
25.2
37.8
kW
8.10
7.99
TC
72.8
64.5
125
SHC
20.1
33.4
kW
9.10
8.94
48HJ009 (8
1
/
TONS)
2
Temp (F)
2550/0.08
Air Ent
Condenser
(Edb)
72
67
TC
112.4 102.2
75
SHC
49.1
62.4
kW
6.10
5.96
TC
105.7
95.7
85
SHC
43.6
57.1
kW
6.92
6.78
TC
98.9
89.1
95
SHC
38.0
51.7
kW
7.73
7.59
TC
91.8
82.3
105
SHC
32.6
46.3
kW
8.80
8.64
TC
84.7
75.5
115
SHC
27.2
40.9
kW
9.86
9.69
TC
77.6
68.7
125
SHC
21.8
35.5
kW
10.93 10.74
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
30
3000/0.11
62
72
67
62
81.1
103.7
97.9
91.8
67.0
50.4
65.4
80.5
4.87
5.09
5.04
4.97
76.9
100.3
92.4
85.2
62.7
46.2
58.3
75.7
5.55
5.81
5.75
5.64
72.6
96.9
86.8
78.6
58.3
41.9
51.2
71.0
6.22
6.52
6.45
6.31
68.0
91.6
81.3
73.4
53.9
36.9
49.3
66.4
7.05
7.36
7.25
7.15
63.3
86.2
75.8
68.1
49.4
31.9
47.4
61.9
7.87
8.20
8.05
7.98
57.2
78.0
69.8
62.3
44.1
25.4
42.5
56.5
8.83
9.23
9.05
8.95
Temp (F) Air Entering Evaporator — Cfm/BF
3000/0.09
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
92.6
115.2 106.4
96.4
75.0
52.9
68.5
82.3
5.86
6.18
6.05
5.95
86.5
110.0 100.6
91.0
69.9
47.8
62.8
76.9
6.63
6.97
6.90
6.75
80.4
104.7
94.8
85.5
64.8
42.7
57.0
71.4
7.40
7.75
7.75
7.56
73.8
97.3
87.6
78.6
59.5
37.0
51.9
66.8
8.47
8.80
8.76
8.58
67.3
89.8
80.5
71.7
54.2
31.4
46.9
62.2
9.53
9.86
9.77
9.61
60.7
82.4
73.3
64.8
48.9
25.7
41.8
57.6
10.60 10.91 10.78 10.64 11.00 10.78 10.70
3750/0.14
72
67
62
105.8
101.3
94.1
54.5
72.4
89.5
5.16
5.04
4.99
103.5
96.8
89.0
50.6
68.2
84.3
5.89
5.74
5.70
101.1
92.2
83.8
46.6
63.9
79.1
6.62
6.43
6.40
94.5
86.3
78.4
41.4
59.2
73.8
7.46
7.29
7.23
87.9
80.3
72.9
36.1
54.4
68.5
8.30
8.14
8.05
81.6
73.2
69.2
31.1
48.9
64.7
9.26
9.10
8.99
3400/0.11
4250/0.13
72
67
62
72
119.6 110.3 101.3
127.6 117.6 108.0
56.2
73.3
89.5
62.8
6.18
6.05
5.95
6.18
114.0 103.7
94.6
118.2 110.9 101.2
50.7
67.9
82.8
74.7
7.01
6.85
6.75
7.01
108.4
97.0
87.9
108.8 104.1
45.2
62.4
76.2
86.5
7.84
7.65
7.54
7.84
100.4
89.8
80.8
102.3
39.3
56.7
70.0
68.6
8.89
8.69
8.59
8.93
92.5
82.5
73.8
95.8
33.4
51.0
63.8
50.6
9.95
9.74
9.65
10.01
84.5
75.3
66.7
89.3
27.5
45.3
57.6
32.7
11.10 10.90 10.82
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
83.3 101.7
6.10
6.00
77.7
94.8
6.91
6.80
94.3
72.0
87.9
7.71
7.60
95.3
85.8
65.5
80.9
8.77
8.67
86.6
77.4
59.1
73.9
9.84
9.75
77.8
68.9
52.6
66.9
sensible capacity (Btuh)
1.10 x cfm
total capacity (Btuh)
4.5 x cfm
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