Performance Data - Bryant 581A/B Product Information Manual

579F180 (15 Tons)
Temp (F)
Air Entering
Condenser
(Edb)
54/0.48 58/0.32
TC — 168
75 SHC — 152
kW — 12.4
TC 159 164
85 SHC 159 148
kW 13.7 13.8
TC 154 159
95 SHC 154 142
kW 15.3 15.4
TC 149 154
105 SHC 149 137
kW 16.9 17.0
TC 144 145
115 SHC 144 142
kW 18.6 18.6
TC 143 143
117 SHC 143 142
kW 18.9 19.0
TC 141 141
120 SHC 141 141
kW 19.5 19.5
579F180 (15 Tons) (cont)
Temp (F)
Air Entering
Condenser
(Edb)
54/0.58 58/0.43
TC 178 174
75 SHC 178 171
kW 12.7 12.7
TC 173 173
85 SHC 173 172
kW 14.1 14.1
TC 167 167
95 SHC 167 167
kW 15.7 15.6
TC 162 162
105 SHC 162 162
kW 17.3 17.3
TC 156 156
115 SHC 156 156
kW 19.1 19.1
TC 154 155
117 SHC 154 155
kW 19.4 19.4
TC 153 153
120 SHC 153 153
kW 19.9 19.9
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
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
Wet-bulb temperature corresponding to enthalpy of air
t =
lwb
leaving evaporator coil (h
total capacity (Btuh)
h = h –
lwb ewb
4.5 x cfm
Where: h = Enthalpy of air entering evaporator coil
ewb
PERFORMANCE DATA — 579F
COOLING CAPACITIES
4500
62/0.22 67/0.20 72/0.19
177 192 209
142 123 103
12.6 13.0 13.3
171 186 202
139 120 100
14.1 14.4 14.8
165 179 195
136 117 98
15.5 15.9 16.3
158 172 187
133 114 95
17.1 17.6 18.0
152 165 179
130 111 92
18.9 19.3 19.8
150 163 178
129 110 91
19.2 19.7 20.2
148 161 175
128 109 90
19.8 20.2 20.7
6000
62/0.30 67/0.25 72/0.23
185 200 218
159 136 112
12.8 13.1 13.5
179 193 210
156 133 109
14.2 14.6 15.0
173 186 203
152 130 106
15.8 16.1 16.6
167 179 194
147 127 104
17.4 17.8 18.2
160 171 186
143 124 101
19.1 19.6 20.0
159 169 184
142 124 100
19.5 19.9 20.4
157 167 181
140 122 99
20.0 20.4 20.9
)
lwb
Evaporator Air Quantity — Cfm
Evaporator Air — Ewb (F)/BF
76/0.24 80/0.04 54/0.54 58/0.39
225 240 171 171
85 69 171 150
13.6 13.9 12.5 12.6
219 233 166 172
83 66 166 151
15.5 15.4 13.9 14.0
210 226 161 164
80 64 161 155
16.7 17.3 15.5 15.5
201 216 156 156
78 61 156 156
18.4 18.7 17.2 17.1
193 207 150 151
75 58 150 151
20.2 20.6 18.9 18.9
191 205 149 149
74 57 149 149
20.5 20.9 19.2 19.2
— — 147 148
— — 147 148
— — 19.8 19.8
Evaporator Air Quantity — Cfm
Evaporator Air — Ewb (F)/BF
76/0.24 80/0.04 54/0.62 58/0.48
233 250 183 179
91 70 183 179
13.8 14.1 12.8 12.7
227 244 178 178
89 68 178 178
15.8 16.2 14.2 14.2
217 232 173 173
86 64 173 173
16.9 17.2 15.8 15.8
208 223 168 167
83 61 168 167
18.5 18.9 17.4 17.4
199 213 160 160
80 59 160 160
20.4 20.7 19.2 19.2
197 211 159 159
79 58 159 159
20.8 21.1 19.6 19.6
— — 157 157
— — 157 157
— — 20.1 20.1
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.
BYPASS
FACTOR
(BF)
0.05
0.10
0.20
0.30
0.40
0.50
0.60
0.70
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
152
5250
62/0.25 67/0.23 72/0.21
182 197 214
151 130 108
12.7 13.1 13.4
175 190 207
148 127 105
14.1 14.5 14.9
169 183 199
145 124 102
15.7 16.0 16.5
162 176 191
142 121 99
17.2 17.7 18.1
156 168 183
137 118 96
19.0 19.5 19.9
154 167 181
136 117 96
19.4 19.8 20.3
152 164 179
135 116 95
19.9 20.4 20.8
6750
62/0.36 67/0.28 72/0.25
183 203 221
161 142 116
12.8 13.2 13.5
183 196 213
161 139 113
14.3 14.7 15.1
177 189 205
157 137 111
15.9 16.2 16.6
171 181 197
152 133 108
17.5 17.9 18.3
165 173 188
145 130 104
19.3 19.6 20.1
163 171 186
144 129 104
19.7 20.0 20.4
161 169 —
142 128 —
20.2 20.5 —
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
0.98 1.96 2.94 3.92 4.91
0.87 1.74 2.62 3.49 4.36
0.76 1.53 2.29 3.05 3.82
0.65 1.31 1.96 2.62 3.27
0.55 1.09 1.64 2.18 2.73
0.44 0.87 1.31 1.74 2.18
0.33 0.65 0.98 1.31 1.64
76/0.23 80/0.04
229 246
88 69
13.7 14.0
222 237
86 67
15.2 15.5
214 229
83 64
16.8 17.1
205 222
81 62
18.5 19.1
196 210
78 58
20.3 20.7
194 208
77 58
20.7 21.0
— —
— —
— —
76/0.25 80/0.03
236 253
93 70
13.9 14.1
228 247
91 68
15.3 16.3
220 235
88 65
17.0 17.3
211 225
85 62
18.6 18.9
201 215
82 59
20.5 20.8
199 —
82 —
20.8 —
— —
— —
— —
under 75
over 85
Use formula
shown below.