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48HJ012 (10 TONS)
Temp (F)
3000/0.03
Air Ent
Condenser
(Edb)
72
67
TC
140.3 129.4 115.0 141.2 130.4 118.1
75
SHC
65.6
82.2
kW
7.35
7.21
TC
137.7 125.3 110.0 138.9 126.6 113.6
85
SHC
65.0
81.2
kW
8.29
8.13
TC
133.8 120.7 103.0 135.1
95
SHC
63.9
79.6
kW
9.33
9.16
TC
128.7 115.4
105
SHC
62.3
77.6
kW
10.46 10.28 10.00 10.47 10.30 10.07
TC
123.2 109.1
115
SHC
60.4
75.1
kW
11.66 11.47 11.20 11.68 11.51 11.25
TC
117.5 101.8
125
SHC
58.5
72.5
kW
12.99 12.77 12.50 13.02 12.81 12.55
48HJ014 (12
1
/
TONS)
2
Temp (F)
3750/0.08
Air Ent
Condenser
(Edb)
72
67
TC
167.1 154.3 142.0 169.8 157.7 144.8
75
SHC
82.5 103.5 123.6
kW
9.44
9.18
TC
162.3 149.3 135.6 165.1 152.5 139.5
85
SHC
80.9 101.4 120.9
kW
10.49 10.18
TC
156.5 143.7 126.3 159.6
95
SHC
79.1
99.5 116.5
kW
11.60 11.30 11.01 11.69
TC
150.0 136.2 115.7 153.0 139.3 120.9
105
SHC
76.5
96.7 111.2
kW
12.76 12.42 12.09 12.83 12.52 12.20
TC
141.8 122.2 104.4 144.3 126.1 110.8
115
SHC
73.6
91.2 104.2
kW
13.85 13.55 13.22 13.94 13.64 13.35
TC
132.5 108.6
125
SHC
70.9
85.7
kW
15.04 14.66 14.44 15.14 14.75 14.55
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
COOLING CAPACITIES, STANDARD UNITS (cont)
Temp (F) Air Entering Evaporator — Cfm/BF
3200/0.03
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
97.4
66.7
84.4 101.5
7.12
7.37
7.23
7.13
95.2
66.3
83.6
99.7
8.02
8.32
8.16
8.03
121.9 107.2
92.2
65.2
82.0
97.0
8.98
9.35
9.18
9.00
96.5
129.8 116.6
99.7
89.4
63.6
80.2
93.5
90.8
124.3 110.3
92.2
86.6
61.9
77.8
90.0
86.2
118.5 103.0
87.4
84.5
60.0
75.0
87.3
Temp (F) Air Entering Evaporator — Cfm/BF
4300/0.09
Temp (F) Air Entering Evaporator — Ewb
62
72
67
62
85.8 109.7 132.0
8.95
9.50
9.26
9.01
84.4 107.9 129.9
9.97
10.55 10.27 10.02
146.8 131.3
83.0 106.1 126.0
11.39 11.10
80.8 103.5 120.0
77.9
98.5 110.8
93.9
134.8 111.4 100.7
93.8
74.8
92.9 100.7
4000/0.04
5000/0.04
72
67
62
72
145.2 134.0 122.1 147.5 136.6 125.3
71.3
93.1 113.5
77.9 103.7 124.7
7.46
7.31
7.17
7.51
142.6 130.6 117.7 144.6 133.3 122.3
71.0
92.8 112.0
76.9 103.1 122.2
8.40
8.24
8.09
8.45
138.8 125.8 112.8 141.7 128.5 118.5
70.6
91.5 109.7
76.9 102.5 118.4
9.44
9.27
9.07
9.51
133.7 120.3 107.1 136.7 122.8 114.5
69.4
89.6 106.8
76.0 100.6 114.3
10.57 10.38 10.21 10.66 10.43 10.31
127.9 114.4 100.8 130.9 116.8 110.1
67.6
87.6 100.7
74.6
11.77 11.60 11.41 11.89 11.66 11.58
121.6 107.1
96.0
124.1 110.3 104.8
65.8
85.1
96.0
72.5
13.10 12.92 12.74 13.19 13.01 12.91
5000/0.11
6250/0.13
72
67
62
72
173.5 160.6 148.4 176.5 164.5 153.3
90.3 117.7 141.9
98.2 130.7 153.1
9.60
9.33
9.07
9.68
168.8 155.3 143.5 172.1 159.2 149.3
89.6 115.8 139.8
97.6 129.3 149.1
10.67 10.32 10.11 10.75 10.43 10.21
162.3 149.8 136.5 166.5 153.2 144.5
87.6 114.2 135.8
95.8 127.7 144.4
11.75 11.47 11.20 11.87 11.56 11.35
155.6 142.5 138.5 158.8 145.9 138.8
85.7 112.3 128.4
93.6 125.9 138.7
12.91 12.62 12.32 12.96 12.72 12.52
147.7 129.4 118.9 150.7 135.2 130.1
83.4 107.3 118.4
91.8 121.9 129.9
14.05 13.73 13.50 14.15 13.86 13.70
137.6 114.4 106.6 140.3 122.9 120.1
80.2 101.4 106.5
89.0 116.3 120.1
15.23 14.85 14.72 15.29 14.94 14.84
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
7.37
7.22
8.31
8.16
9.33
9.19
98.7 109.9
96.9 104.8
67
62
9.43
9.17
sensible capacity (Btuh)
1.10 x cfm
total capacity (Btuh)
4.5 x cfm
27
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