Bryant 579F User Manual page 185

579F216 (18 Tons)
Temp (F)
Air Entering
Condenser
(Edb)
54/0.49 58/0.31
TC 194 198
75 SHC 194 178
kW 13.6 13.7
TC 189 192
85 SHC 189 176
kW 15.1 15.2
TC 183 184
95 SHC 183 181
kW 16.8 16.8
TC 177 178
105 SHC 177 178
kW 18.6 18.6
TC 171 171
115 SHC 171 171
kW 20.5 20.5
TC 170 170
117 SHC 170 170
kW 20.9 20.9
TC 168 168
120 SHC 168 168
kW 21.5 21.5
579F216 (18 Tons) (cont)
Temp (F)
Air Entering
Condenser
(Edb)
54/0.58 58/0.42
TC 209 209
75 SHC 209 209
kW 13.9 13.9
TC 203 204
85 SHC 203 204
kW 15.5 15.5
TC 197 197
95 SHC 197 197
kW 17.2 17.2
TC 191 191
105 SHC 191 191
kW 19.0 19.0
TC 184 184
115 SHC 184 184
kW 21.0 21.0
TC 183 183
117 SHC 183 183
kW 21.3 21.4
TC 180 180
120 SHC 180 180
kW 21.9 22.0
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 (cont)
COOLING CAPACITIES (cont)
5400
62/0.20 67/0.18 72/0.16 76/0.19
206 223 243
169 146 121
13.9 14.2 14.6
200 217 235
166 143 118
15.4 15.9 16.3
193 209 227
162 140 115
17.1 17.6 18.0
185 201 218
159 137 112
18.8 19.3 19.8
177 192 209
154 133 109
20.7 21.2 21.8
176 191 207
154 132 108
21.1 21.6 22.1
173 188 204
152 131 107
21.7 22.2 22.7
7000
62/0.29 67/0.21 72/0.20 76/0.20
215 232 251
189 162 132
14.1 14.5 14.9
209 224 243
185 159 129
15.7 16.1 16.5
202 216 235
180 156 126
17.4 17.8 18.2
195 208 225
175 152 123
19.2 19.5 20.0
188 199 215
168 149 119
21.1 21.5 22.0
187 197 214
166 148 118
21.5 21.8 22.4
185 194 210
163 147 117
22.1 22.4 23.0
)
lwb
Evaporator Air Quantity — Cfm
Evaporator Air — Ewb (F)/BF
80/0.05 54/0.53 58/0.35
260 277 200 203
99 79 200 191
15.0 15.2 13.7 13.8
252 269 195 195
97 76 195 195
16.6 16.9 15.3 15.3
243 — 189 190
94 — 189 190
18.4 — 17.0 17.0
234 — 183 185
91 — 183 185
20.2 — 18.8 18.6
224 — 176 177
88 — 176 177
22.1 — 20.7 20.7
222 — 175 175
87 — 175 175
22.5 — 21.1 21.1
— — 173 173
— — 173 173
— — 21.7 21.7
Evaporator Air Quantity — Cfm
Evaporator Air — Ewb (F)/BF
80/0.05 54/0.62 58/0.48
268 — 216 217
106 — 216 217
15.2 — 14.1 14.1
260 — 211 211
103 — 211 211
16.9 — 15.7 15.7
251 — 204 204
100 — 204 204
18.7 — 17.4 17.4
241 — 197 197
97 — 197 197
20.5 — 19.2 19.2
230 — 190 190
94 — 190 190
22.4 — 21.1 21.1
228 — 188 188
93 — 188 188
22.7 — 21.5 21.5
— — 186 186
— — 186 186
— — 22.1 22.1
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
79
FACTOR
81
(BF)
0.05 1.04
0.10 0.98
0.20 0.87
0.30 0.76
0.40 0.65
0.50 0.55
0.60 0.44
0.70 0.33
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
185
6000
62/0.23 67/0.19 72/0.17 76/0.19
210 227 246 263
177 152 125 102
14.0 14.4 14.7 15.1
204 220 239 255
174 149 123 100
15.7 16.0 16.4 16.8
196 212 230 246
170 146 120 97
17.2 17.6 18.1 18.5
189 204 221 237
166 143 116 94
18.9 19.4 19.9 20.3
181 195 212 226
161 139 113 90
20.8 21.3 21.8 22.2
180 193 210 224
160 138 112 90
21.2 21.7 22.2 22.6
177 191 207 —
159 137 111 —
21.8 22.3 22.8 —
8000
62/0.36 67/0.23 72/0.22 76/0.21
221 236 255 272
198 171 138 109
14.2 14.5 15.0 15.3
215 228 247 263
192 168 135 107
15.8 16.2 16.6 17.0
209 220 238 254
185 165 132 104
17.6 17.9 18.3 18.7
202 211 228 244
177 161 128 100
19.3 19.6 20.1 20.6
194 202 218 —
170 158 125 —
21.2 21.6 22.1 —
192 200 216 —
171 157 124 —
21.7 22.0 22.5 —
190 197 — —
172 156 — —
22.2 22.5 — —
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 4.91
1.74 2.62 3.49 4.36
1.53 2.29 3.05 3.82
1.31 1.96 2.62 3.27
1.09 1.64 2.18 2.73
0.87 1.31 1.74 2.18
0.65 0.98 1.31 1.64
80/0.05
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—
—
—
—
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—
—
—
—
—
—
—
—
—
—
—
—
—
80/0.04
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—
—
—
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—
—
—
—
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—
—
—
—
—
—
—
—
under 75
over 85
Use formula
shown below.