Carrier 50HJQ004-016 Product Data page 87
Single-package rooftop standard and high efficiency heat pump units
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50HJQ012 (10 Tons)
Temp (F)
Temp (F)
Outdoor
Outdoor
Entering Air
Entering Air
(Edb)
(Edb)
75
75
85
85
95
95
105
105
115
115
125
125
1
50HJQ014 (12
/
2 Tons)
Temp (F)
Temp (F)
Outdoor
Outdoor
3750/0.04
Entering Air
Entering Air
(Edb)
(Edb)
72
67
TC
167.0
154.0
75
75
SHC
79.6
100.0
kW
10.00
9.77
TC
160.0
148.0
85
85
SHC
77.6
98.9
kW
11.10
10.80
TC
155.0
141.0
95
95
SHC
76.1
96.3
kW
12.20
11.80
TC
147.0
133.0
105
105
SHC
73.6
93.3
kW
13.20
12.70
TC
140.0
126.0
115
115
SHC
71.4
90.3
kW
14.20
13.70
TC
131.0
118.0
125
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 --- Sensible Heating Capacity (1000 Btuh) Gross
TC --- Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
t
t
ldb = tedb –
1.10 x cfm
t lwb
= Wet-bulb temperature corresponding to enthalpy of air leaving indoor coil (h
total capacity (Btuh)
h
lwb = hewb –
4.5x
Where:
ewb
h
= Enthalpy of air entering indoor coil
COOLING CAPACITIES (CONT)
3000/0.03
72
67
TC
136.0
124.0
111.4
SHC
64.6
80.8
96.0
kW
7.51
7.35
7.20
TC
132.6
119.6
106.6
SHC
63.6
79.2
94.0
kW
8.40
8.23
8.09
TC
127.8
114.6
99.4
SHC
62.2
77.6
90.8
kW
9.36
9.18
9.01
TC
122.4
108.8
92.0
SHC
60.4
75.4
87.4
kW
10.41
10.26
10.02
TC
116.8
101.8
86.6
SHC
58.6
72.8
84.6
kW
11.58
11.37
11.15
TC
110.6
95.8
84.6
SHC
56.4
70.6
83.4
kW
12.87
12.62
12.36
4500/0.05
62
72
67
62
140.0
171.0
158.0
144.0
120.0
85.0
108.0
131.0
9.50
10.10
9.87
9.61
133.0
164.0
151.0
137.0
118.0
82.0
107.0
129.0
10.40
11.20
10.90
10.60
127.0
157.0
144.0
131.0
115.0
80.3
105.0
126.0
11.40
12.20
11.90
11.50
120.0
150.0
137.0
124.0
112.0
78.5
102.0
123.0
12.30
13.30
12.90
12.50
112.0
141.0
129.0
118.0
109.0
75.1
99.1
117.0
13.20
14.30
13.90
13.50
105.0
134.0
120.0
111.0
105.0
73.5
96.4
111.0
14.10
15.40
14.90
14.50
lwb
cfm
Indoor Entering Air — Cfm/BF
4000/0.04
Indoor Entering Air — Ewb (F)
62
72
67
62
141.2
129.0
116.6
71.2
92.4
111.8
7.61
7.45
7.29
137.6
124.4
112.0
70.6
91.4
110.0
8.50
8.33
8.17
133.2
119.4
107.2
69.6
89.8
107.0
9.48
9.30
9.15
127.4
113.6
101.4
68.0
88.0
101.4
10.53
10.35
10.22
121.2
106.6
94.8
66.0
85.4
94.8
11.68
11.51
11.35
114.6
98.4
88.8
64.4
82.4
88.8
12.97
12.73
12.60
Indoor Entering Air — Cfm/BF
5000/0.05
Indoor Entering Air — Ewb (F)
72
67
62
173.0
159.0
146.0
171.0
87.5
114.0
138.0
10.20
9.93
9.68
10.20
167.0
154.0
140.0
168.0
86.1
113.0
136.0
11.30
11.00
10.70
11.30
160.0
146.0
133.0
161.0
84.4
110.0
132.0
12.40
12.00
11.60
12.40
152.0
138.0
127.0
153.0
81.6
108.0
127.0
13.40
13.00
12.60
13.50
144.0
130.0
121.0
144.0
78.9
104.0
121.0
14.40
14.00
13.70
14.50
135.0
122.0
115.0
137.0
75.7
102.0
115.0
15.40
14.90
14.70
15.60
3. The Shc is based on 80_F edb termperature 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
BYPASS
79
FACTOR
FACTOR
81
(BF)
(BF)
.05
1.04
.10
.98
.20
.87
.30
.76
)
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
87
5000/0.06
72
67
62
145.6
132.0
121.2
78.6
103.2
121.0
7.72
7.53
7.39
140.4
127.4
118.0
77.0
102.6
118.0
8.58
8.40
8.27
136.2
121.8
114.2
76.8
101.2
113.8
9.56
9.36
9.24
130.4
116.0
109.6
75.4
99.4
109.4
10.63
10.43
10.35
123.6
109.2
104.6
73.4
97.0
104.6
11.76
11.60
11.51
117.0
100.8
96.4
71.4
93.8
96.4
13.03
12.83
12.77
5625/0.06
72
67
62
72
162.0
148.0
173.0
94.5
120.0
146.0
97.7
10.00
9.74
10.20
155.0
143.0
166.0
89.6
118.0
142.0
95.3
11.00
10.80
11.30
149.0
137.0
163.0
86.5
117.0
137.0
91.7
12.10
11.80
12.50
140.0
131.0
154.0
85.1
114.0
131.0
88.6
13.10
12.80
13.50
131.0
125.0
146.0
81.9
110.0
125.0
87.0
14.00
13.90
14.60
123.0
118.0
136.0
80.7
108.0
118.0
83.4
15.00
14.90
15.60
ENTERING AIR DRY-BULB TEMP (F)
78
77
76
75
82
83
84
85
Correction Factor
2.07
3.11
4.14
5.18
1.96
2.94
3.92
4.90
1.74
2.62
3.49
4.36
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
Use formula
shown below.
shown below.
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