Carrier 50TFQ004 Product Data page 19
Single-package standard efficiency rooftop heat pump units 3 to 10 nominal tons
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- Product data (172 pages) ,
- Installation, start-up and service instructions manual (56 pages)
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50TFQ012 (10 TONS)
Temp (F)
Outdoor
Entering Air
(Edb)
72
TC
127.4
75
SHC
60.0
kW
8.30
TC
124.6
85
59.2
SHC
kW
9.24
TC
121.8
95
SHC
58.4
kW
10.34
TC
116.9
105
SHC
56.6
kW
11.38
TC
112.0
115
SHC
55.0
12.58
kW
TC
106.4
125
SHC
53.2
kW
13.84
LEGEND
BF
— Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW — Compressor Motor Power Input
Ldb — Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh) Gross
TC
— Total Capacity (1000 Btuh) Gross
COOLING CAPACITIES (cont)
2800/0.11
3750/0.16
67
62
72
120.4
110.6
134.2
76.4
91.0
66.2
8.18
7.88
8.54
116.2
106.4
131.0
74.6
89.4
65.4
9.04
8.74
9.50
112.0
102.2
126.2
73.2
87.4
63.8
10.04
9.66
10.46
107.2
97.6
122.4
71.4
85.4
63.0
11.08
10.66
11.64
102.0
92.8
116.6
69.6
83.2
61.2
12.18
11.74
12.78
96.8
87.8
110.4
67.4
80.8
59.2
13.36
12.90
13.96
Indoor Entering Air — Cfm/BF
4100/0.18
Indoor Entering Air — Ewb (F)
67
62
72
126.2
116.2
135.6
127.4
86.0
104.4
67.8
8.34
8.04
8.60
122.0
112.4
132.4
123.6
84.8
103.6
67.4
9.24
8.98
9.54
117.4
107.4
127.8
119.0
83.4
101.0
66.0
10.18
9.90
10.52
10.26
112.4
102.8
123.6
113.8
82.0
98.4
65.0
11.28
10.90
11.68
11.32
107.0
98.0
118.0
108.2
80.2
95.2
63.6
11.42
12.00
12.84
12.48
101.2
93.6
111.6
102.2
78.4
91.4
61.4
13.62
13.22
14.02
13.68
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
t
= t
–
ldb
edb
t
= Wet-bulb temperature corresponding to enthalpy of air leav-
lwb
ing indoor coil (h
h
= h
–
lwb
ewb
Where: h
= Enthalpy of air entering evaporator coil
ewb
3. The 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.
4700/0.21
67
62
72
117.8
137.0
89.0
108.8
70.2
8.36
8.10
8.64
114.0
133.8
88.4
107.4
70.0
9.28
9.02
9.60
109.4
130.0
87.2
104.8
69.6
9.96
10.62
105.0
124.6
85.8
101.8
67.8
11.00
11.68
100.2
120.0
84.2
98.0
67.4
12.12
12.96
95.8
113.6
82.2
94.0
65.4
13.34
14.14
1.10 x cfm
)
lwb
total capacity (Btuh)
4.5 x cfm
67
62
129.0
120.6
93.4
115.6
8.38
8.20
126.0
116.4
94.2
112.8
9.36
9.08
121.2
112.6
93.4
110.2
10.36
10.08
115.6
108.4
91.4
106.2
11.38
11.16
110.0
103.8
90.2
101.8
12.56
12.30
103.8
99.0
88.0
97.2
13.76
13.54
19
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