Bryant 588A User Manual
Page 15
NET COOLING CAPACITIES (cont)
588A036 (3 TONS)
Indoor
Coil Air
Outdoor Coil Entering-Air Temperature (F)
85
95
105
115
Cfm
BF
Ewb
(F)
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Total
Sensible
Total
Sensible
Total
Sensible
Total
Sensible
1050
0.07
72
41.7
19.9
3.99
39.3
19.1
4.18
37.2
18.4
4.39
34.7
17.5
4.57
67
37.6
25.4
3.86
35.5
24.7
4.05
33.2
23.8
4.23
30.9
22.9
4.41
62
33.6
30.5
3.72
31.2
29.4
3.90
28.8
28.2
4.08
26.7
26.7
4.26
1200
0.08
72
42.3
20.7
4.08
40.2
20.1
4.29
37.6
19.2
4.48
35.0
18.3
4.66
67
38.3
27.1
3.95
36.0
26.2
4.14
33.7
25.4
4.32
31.3
24.5
4.50
62
34.2
32.5
3.81
31.9
31.4
3.99
30.0
30.0
4.17
28.1
28.1
4.37
1350
0.09
72
42.6
21.4
4.15
40.4
20.8
4.36
37.9
20.0
4.56
35.2
19.0
4.73
67
38.7
28.5
4.03
36.4
27.7
4.22
34.0
26.8
4.41
31.6
25.9
4.58
62
34.8
34.2
3.90
32.8
32.8
4.09
31.1
31.0
4.29
29.2
29.2
4.48
588A042 (3
1
⁄
2
TONS)
Indoor
Coil Air
Outdoor Coil Entering-Air Temperature (F)
85
95
105
115
Cfm
BF
Ewb
(F)
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Total
Sensible
Total
Sensible
Total
Sensible
Total
Sensible
1225
0.11
72
47.9
23.5
4.57
45.3
22.5
4.81
43.0
21.8
5.08
40.1
20.7
5.30
67
44.2
30.0
4.43
41.8
29.2
4.67
39.3
28.2
4.90
36.7
27.2
5.12
62
40.3
36.1
4.28
38.0
34.9
4.50
35.7
33.8
4.73
33.3
32.5
4.94
1400
0.12
72
48.5
24.3
4.66
45.9
23.4
4.91
43.3
22.5
5.17
40.4
21.4
5.39
67
44.9
31.7
4.52
42.5
30.9
4.77
39.9
29.9
5.01
37.2
28.8
5.23
62
41.1
38.3
4.38
38.8
37.1
4.61
36.4
35.8
4.84
34.1
34.1
5.06
1575
0.14
72
49.0
25.0
4.75
46.4
24.2
5.00
43.7
23.4
5.26
40.8
22.3
5.49
67
45.4
33.2
4.61
43.0
32.5
4.87
40.4
31.5
5.10
37.6
30.4
5.32
62
41.8
40.2
4.48
39.4
38.9
4.71
37.2
37.2
4.94
35.0
35.0
5.18
588A048 (4 TONS)
Indoor
Coil Air
Outdoor Coil Entering-Air Temperature (F)
85
95
105
115
Cfm
BF
Ewb
(F)
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Total
Sensible
Total
Sensible
Total
Sensible
Total
Sensible
1400
0.08
72
52.9
25.6
4.95
50.9
24.8
5.38
48.8
24.1
5.83
46.4
23.4
6.34
67
48.3
32.7
4.85
46.4
32.1
5.28
44.2
31.2
5.73
41.5
30.2
6.22
62
43.8
39.4
4.76
41.9
38.6
5.17
39.3
37.3
5.61
36.6
35.9
6.08
1600
0.10
72
53.7
26.4
5.07
51.7
25.9
5.50
49.2
25.1
5.95
47.0
24.3
6.45
67
49.1
34.6
4.97
47.0
33.9
5.40
44.7
33.1
5.85
42.4
32.4
6.34
62
44.5
41.9
4.87
42.6
41.1
5.29
40.1
39.7
5.74
37.7
37.6
6.22
1800
0.11
72
53.9
27.1
5.17
52.2
26.8
5.61
49.6
26.0
6.06
47.4
25.4
6.57
67
49.6
36.4
5.08
47.5
35.9
5.51
45.2
35.1
5.96
42.8
34.2
6.46
62
45.1
44.1
4.99
43.3
43.1
5.41
41.2
41.2
5.87
39.0
39.0
6.36
LEGEND
BF
— Bypass Factor
Edb
— Entering Dry-Bulb
Ewb — Entering Wet-Bulb
Ldb
— Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh)
NOTES:
1. Ratings are net; they account for the effects of the indoor-fan motor
power and heat.
2. Direct interpolation is permissible. Do not extrapolate.
3. The following formulas may be used:
sensible capacity (Btuh x 1000)
t
= t
–
ldb
edb
1.10 x cfm
t
= Wet-bulb temperature corresponding to enthalpy of air
lwb
leaving indoor coil (h
)
lwb
total capacity (Btuh x 1000)
h
= h
–
lwb
ewb
4.5 x cfm
Where: h
= Enthalpy of air entering indoor coil
ewb
4. 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.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
15