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50HJQ012 (10 Tons)
Temp (F)
3000/0.03
Outdoor
Entering Air
(Edb)
72
TC
136.0
75
SHC
64.6
kW
7.51
TC
132.6
85
SHC
63.6
kW
8.40
TC
127.8
95
SHC
62.2
kW
9.36
TC
122.4
105
SHC
60.4
kW
10.41
TC
116.8
115
SHC
58.6
kW
11.58
TC
110.6
125
SHC
56.4
kW
12.87
1
50HJQ014 (12
/
Tons)
2
Temp (F)
3750/0.04
Outdoor
Entering Air
(Edb)
72
67
TC
167.0
154.0
75
SHC
79.6
100.0
kW
10.00
9.77
TC
160.0
148.0
85
SHC
77.6
98.9
kW
11.10
10.80
TC
155.0
141.0
95
SHC
76.1
96.3
kW
12.20
11.80
TC
147.0
133.0
105
SHC
73.6
93.3
kW
13.20
12.70
TC
140.0
126.0
115
SHC
71.4
90.3
kW
14.20
13.70
TC
131.0
118.0
125
SHC
68.1
87.6
kW
15.20
14.70
LEGEND
BF
— Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW — Compressor Motor Power Input
SHC — Gross Sensible Heat Capacity (1000 Btuh)
TC
— Gross Total Capacity (1000 Btuh)
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
t
= t
–
ldb
edb
1.10 x cfm
t
= Wet-bulb temperature corresponding to enthalpy of air leav-
lwb
ing indoor coil (h
)
lwb
total capacity (Btuh)
h
= h
–
lwb
ewb
4.5 x cfm
Where: h
= Enthalpy of air entering indoor coil
ewb
COOLING CAPACITIES (cont)
Indoor Entering Air — Cfm/BF
4000/0.04
Indoor Entering Air — Ewb (F)
67
62
72
124.0
111.4
141.2
129.0
80.8
96.0
71.2
92.4
7.35
7.20
7.61
7.45
119.6
106.6
137.6
124.4
79.2
94.0
70.6
91.4
8.23
8.09
8.50
8.33
114.6
99.4
133.2
119.4
77.6
90.8
69.6
89.8
9.18
9.01
9.48
9.30
108.8
92.0
127.4
113.6
75.4
87.4
68.0
88.0
10.26
10.02
10.53
10.35
101.8
86.6
121.2
106.6
72.8
84.6
66.0
85.4
11.37
11.15
11.68
11.51
95.8
84.6
114.6
98.4
70.6
83.4
64.4
82.4
12.62
12.36
12.97
12.73
4500/0.05
62
72
67
140.0
171.0
158.0
120.0
85.0
108.0
9.50
10.10
9.87
133.0
164.0
151.0
118.0
82.0
107.0
10.40
11.20
10.90
127.0
157.0
144.0
115.0
80.3
105.0
11.40
12.20
11.90
120.0
150.0
137.0
112.0
78.5
102.0
12.30
13.30
12.90
112.0
141.0
129.0
109.0
75.1
99.1
13.20
14.30
13.90
105.0
134.0
120.0
105.0
73.5
96.4
14.10
15.40
14.90
5000/0.06
67
62
72
67
116.6
145.6
132.0
111.8
78.6
103.2
7.29
7.72
7.53
112.0
140.4
127.4
110.0
77.0
102.6
8.17
8.58
8.40
107.2
136.2
121.8
107.0
76.8
101.2
9.15
9.56
9.36
101.4
130.4
116.0
101.4
75.4
99.4
10.22
10.63
10.43
94.8
123.6
109.2
94.8
73.4
97.0
11.35
11.76
11.60
88.8
117.0
100.8
88.8
71.4
93.8
12.60
13.03
12.83
Indoor Entering Air — Cfm/BF
5000/0.05
Indoor Entering Air — Ewb (F)
62
72
67
62
144.0
173.0
159.0
146.0
131.0
87.5
114.0
138.0
9.61
10.20
9.93
9.68
137.0
167.0
154.0
140.0
129.0
86.1
113.0
136.0
10.60
11.30
11.00
10.70
131.0
160.0
146.0
133.0
126.0
84.4
110.0
132.0
11.50
12.40
12.00
11.60
124.0
152.0
138.0
127.0
123.0
81.6
108.0
127.0
12.50
13.40
13.00
12.60
118.0
144.0
130.0
121.0
117.0
78.9
104.0
121.0
13.50
14.40
14.00
13.70
111.0
135.0
122.0
115.0
111.0
75.7
102.0
115.0
14.50
15.40
14.90
14.70
3. SHC is based on 80 F edb temperature of air entering indoor coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
BYPASS
FACTOR
(BF)
.05
.10
.20
.30
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
62
121.2
121.0
7.39
118.0
118.0
8.27
114.2
113.8
9.24
109.6
109.4
10.35
104.6
104.6
11.51
96.4
96.4
12.77
5625/0.06
72
67
62
72
171.0
162.0
148.0
173.0
94.5
120.0
146.0
97.7
10.20
10.00
9.74
10.20
168.0
155.0
143.0
166.0
89.6
118.0
142.0
95.3
11.30
11.00
10.80
11.30
161.0
149.0
137.0
163.0
86.5
117.0
137.0
91.7
12.40
12.10
11.80
12.50
153.0
140.0
131.0
154.0
85.1
114.0
131.0
88.6
13.50
13.10
12.80
13.50
144.0
131.0
125.0
146.0
81.9
110.0
125.0
87.0
14.50
14.00
13.90
14.60
137.0
123.0
118.0
136.0
80.7
108.0
118.0
83.4
15.60
15.00
14.90
15.60
ENTERING AIR DRY-BULB TEMP (F)
79
78
77
76
75
81
82
83
84
85
Correction Factor
1.04
2.07
3.11
4.14
5.18
.98
1.96
2.94
3.92
4.90
.87
1.74
2.62
3.49
4.36
.76
1.53
2.29
3.05
3.82
6250/0.07
67
62
161.0
151.0
127.0
150.0
10.00
9.80
157.0
146.0
125.0
146.0
11.10
10.80
149.0
140.0
121.0
140.0
12.10
11.90
141.0
134.0
120.0
134.0
13.10
12.90
133.0
128.0
117.0
128.0
14.10
14.00
124.0
121.0
113.0
121.0
15.10
15.00
under 75
over 85
Use formula
shown below.
95
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