Performance Data - Bryant DURAPAC 551B User Manual

558F036 (3 TONS)
Air Entering Evaporator — Cfm/BF
Temp (F)
900/0.11
Air Entering
Condenser
Air Entering Evaporator — Ewb (F)
(Edb)
72 67 62
TC 42.8 38.9 35.0
75 SHC 20.0 24.5 28.7
kW 2.91 2.81 2.70
TC 40.8 36.9 33.3
85 SHC 19.4 23.7 27.9
kW 3.14 3.01 2.90
TC 38.7 34.9 31.4
95 SHC 18.6 22.9 27.0
kW 3.35 3.21 3.09
TC 36.5 32.8 29.2
105 SHC 17.8 22.1 25.9
kW 3.55 3.41 3.27
TC 34.3 30.7 26.9
17.0 21.3 24.8
115 SHC
kW 3.76 3.60 3.45
558F048 (4 TONS)
Air Entering Evaporator — Cfm/BF
Temp (F)
Air Entering 1200/0.12
Condenser
Air Entering Evaporator — Ewb (F)
(Edb)
72 67 62
TC 57.9 53.1 48.3
75
SHC 27.2 33.3 39.2
kW 4.07 3.93 3.79
TC 55.7 50.8 45.3
85
SHC 26.4 32.5 37.8
kW 4.40 4.24 4.08
TC 52.9 48.1 42.5
95
SHC 25.5 31.5 36.4
kW 4.70 4.54 4.36
TC 50.1 45.3 39.8
105
SHC 24.4 30.3 35.1
kW 5.00 4.81 4.62
TC 47.3 42.6 37.2
115
SHC 23.4 29.2 33.7
kW 5.30 5.07 4.88
558F060 (5 TONS)
Air Entering Evaporator — Cfm/BF
Temp (F)
1500/0.07
Air Entering
Condenser
Air Entering Evaporator — Ewb (F)
(Edb)
72 67 62
TC 71.0 63.8 55.4
75 SHC 33.9 41.5 47.9
kW 5.04 4.82 4.62
TC 69.2 61.0 54.2
85 SHC 33.4 40.5 47.3
kW 5.50 5.27 5.02
TC 65.5 56.6 50.4
95 SHC 32.1 38.8 45.6
kW 5.88 5.62 5.37
TC 61.9 53.1 47.1
105 SHC 30.8 37.5 44.1
kW 6.25 5.99 5.72
TC 58.2 49.7 43.7
115 SHC 29.5 36.1 42.5
kW 6.63 6.35 6.08

PERFORMANCE DATA

COOLING CAPACITIES
1200/0.14 1500/0.17
72 67 62 72 67
44.8 40.8 37.0 45.8 41.9
21.8 27.5 32.8 23.0 30.0
2.99 2.88 2.78 3.02 2.92
42.5 38.7 35.0 43.6 39.9
21.0 26.8 31.8 22.6 29.7
3.20 3.08 2.97 3.24 3.14
40.4 36.6 33.0 41.4 37.6
20.3 26.0 30.9 22.0 28.8
3.42 3.29 3.16 3.47 3.35
38.1 34.3 30.9 39.0 35.2
19.6 25.2 29.8 21.2 28.0
3.63 3.49 3.35 3.68 3.54
35.7 32.1 28.8 36.5 32.9
19.0 24.4 28.8 20.5 27.1
3.84 3.68 3.54 3.88 3.74
1600/0.15 2000/0.18
72 67 62 72 67
60.4 55.9 51.3 62.2 57.3
29.4 37.2 44.8 31.4 40.3
4.17 4.03 3.90 4.24 4.08
57.7 53.4 48.5 59.4 55.0
28.4 36.7 43.6 30.5 40.3
4.47 4.35 4.20 4.54 4.42
55.2 50.5 45.7 56.7 52.0
27.6 35.6 42.2 29.7 39.2
4.78 4.63 4.47 4.87 4.70
52.3 47.6 42.8 53.6 48.9
26.7 34.5 40.7 28.8 38.1
5.10 4.91 4.73 5.17 4.99
49.3 44.6 40.0 50.5 45.9
25.9 33.3 39.3 27.8 37.1
5.42 5.19 4.99 5.48 5.28
2000/0.09 2500/0.12
72 67 62 72 67
74.5 67.2 59.2 76.5 69.7
37.4 47.4 55.8 40.6 52.8
5.20 4.97 4.76 5.29 5.06
72.9 65.6 57.2 75.2 68.1
37.0 46.9 54.9 40.1 52.3
5.66 5.41 5.18 5.75 5.50
69.4 60.9 53.1 71.2 63.3
35.8 45.3 52.6 39.1 50.9
6.01 5.76 5.53 6.12 5.87
65.4 56.6 50.5 67.1 58.8
34.5 43.7 50.2 37.9 49.3
6.38 6.13 5.91 6.50 6.23
61.4 52.3 47.8 63.0 54.3
33.2 42.1 47.8 36.7 47.6
6.75 6.49 6.29 6.88 6.59
Standard Ratings
LEGEND
BF — Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
62
kW — Compressor Motor Power Input
Ldb — Leaving Dry-Bulb
38.2
Lwb — Leaving Wet-Bulb
36.0
SHC — Sensible Heat Capacity (1000 Btuh) Gross
2.82
TC — Total Capacity (1000 Btuh) Gross
36.1
35.1
NOTES:
3.02
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
34.1
34.0
sensible capacity (Btuh)
3.22
t = t –
ldb edb
32.4
32.3
t = Wet-bulb temperature corresponding to enthalpy of air leaving evapora-
3.43 lwb
tor coil (h
lwb
30.6
30.6 total capacity (Btuh)
h =h –
3.64
lwb ewb
Where: h = Enthalpy of air entering evaporator coil
ewb
3. The SHC is based on 80 F edb temperature of air entering evaporator coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
62
BYPASS
79
FACTOR
52.9
81
(BF)
49.1
3.96
.05 1.04
50.2
.10
47.9
.20
4.25
.30
47.4
46.7
Interpolation is permissible.
4.56
Correction Factor = 1.10 x (1 - BF) x (edb - 80).
44.9
44.6
4.84
42.4
42.4
5.12
62
62.1
61.8
4.87
61.5
61.3
5.29
57.8
57.8
5.67
54.5
54.5
6.06
51.2
51.2
6.46
36
1.10 x cfm
)
4.5 x cfm
ENTERING AIR DRY-BULB TEMP (F)
78 77 76 75
82 83 84 85
Correction Factor
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
under 75
over 85
Use formula
shown below.