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Performance data (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
105.5
96.9
75
SHC
50.6
63.6
kW
5.15
5.07
TC
102.5
93.6
85
SHC
49.7
62.4
kW
5.86
5.79
TC
98.9
90.1
95
SHC
48.5
61.2
kW
6.65
6.58
TC
95.3
86.2
105
SHC
47.3
59.6
kW
7.51
7.44
TC
91.0
82.0
115
SHC
45.9
58.0
kW
8.43
8.33
TC
86.2
77.8
125
SHC
44.1
56.4
kW
9.38
9.29
48HJ009 (8
1
/
TONS)
2
Temp (F)
2550/0.08
Air Ent
Condenser
(Edb)
72
67
TC
119.5 105.7
75
SHC
56.5
65.7
kW
5.92
5.84
TC
115.5 101.9
85
SHC
55.1
64.3
kW
6.77
6.69
TC
111.3
97.7
95
SHC
53.7
62.8
kW
7.71
7.62
TC
107.2
93.5
105
SHC
52.2
61.3
kW
8.75
8.64
TC
101.9
89.2
115
SHC
50.2
59.5
kW
9.80
9.73
TC
97.3
84.3
125
SHC
48.7
57.7
kW
11.03 10.90 10.70 11.08 10.96 10.81
Standard Ratings
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
26
COOLING CAPACITIES, STANDARD UNITS (cont)
3000/0.11
62
72
67
62
87.6
107.3
99.6
90.7
75.7
53.3
69.2
83.7
5.04
5.16
5.11
5.06
83.6
105.1
96.5
87.5
73.9
52.8
68.4
82.2
5.73
5.89
5.82
5.77
79.3
101.6
92.9
83.5
71.9
51.9
67.2
80.2
6.49
6.69
6.61
6.53
75.7
97.6
88.8
79.6
70.2
50.7
65.9
78.0
7.31
7.55
7.48
7.36
71.6
93.2
84.5
75.4
68.1
49.3
64.2
75.3
8.20
8.46
8.37
8.27
68.1
88.3
80.0
71.9
66.3
47.5
62.6
71.8
9.14
9.43
9.34
9.24
Temp (F) Air Entering Evaporator — Cfm/BF
3000/0.09
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
94.8
123.1 109.1
98.7
77.8
60.2
71.7
86.3
5.77
5.95
5.88
5.81
90.6
119.7 105.4
94.8
76.1
58.9
70.5
85.1
6.61
6.83
6.74
6.67
86.6
115.0
101.2
90.6
74.2
57.4
68.9
82.9
7.52
7.76
7.68
7.59
82.5
110.5
96.7
85.9
72.7
56.0
67.4
81.2
8.54
8.80
8.70
8.61
78.0
104.7
91.8
81.5
70.7
53.7
65.7
79.5
9.64
9.86
9.79
9.72
73.1
100.0
86.8
76.0
68.5
52.4
63.9
76.0
3750/0.14
72
67
62
110.3
101.9
93.8
58.0
76.6
92.2
5.20
5.13
5.07
107.7
99.0
90.6
57.3
75.9
90.0
5.93
5.86
5.78
103.8
95.3
87.4
56.2
74.9
87.3
6.72
6.64
6.57
100.0
91.0
84.1
55.3
73.6
84.1
7.59
7.50
7.41
95.6
86.6
80.7
54.2
72.1
80.7
8.52
8.42
8.34
90.0
81.9
77.2
52.1
70.1
77.2
9.47
9.38
9.32
3400/0.11
4250/0.13
72
67
62
72
124.8 110.7 100.2 126.3 112.8 103.4
62.2
75.8
92.8
67.8
5.96
5.89
5.83
5.99
121.4 106.9
96.1
124.0 109.1
61.3
74.5
90.5
66.2
6.85
6.76
6.67
6.88
117.2 102.6
91.7
120.1 104.8
60.0
73.0
88.6
65.0
7.80
7.69
7.58
7.84
112.1
97.9
87.6
114.9
58.4
71.4
86.6
63.5
8.82
8.71
8.62
8.86
106.7
93.1
83.3
109.2
56.6
69.5
83.1
61.5
9.90
9.79
9.71
9.95
101.3
87.9
78.7
102.9
54.8
67.9
78.7
59.1
11.11 10.99 10.88 11.14 11.03 10.93
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
83.3 101.2
5.91
5.85
98.7
82.9
98.5
6.79
6.71
94.5
81.5
94.5
7.74
7.66
99.9
90.5
79.5
90.5
8.75
8.67
94.9
86.3
77.8
86.3
9.84
9.75
89.5
81.9
75.7
81.9
sensible capacity (Btuh)
1.10 x cfm
total capacity (Btuh)
4.5 x cfm
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