Bryant 558F Air Conditioner User Manual


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120
PERFORMANCE DATA (cont)
COOLING CAPACITIES (cont)
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
Where: h
ewb
= Enthalpy of air entering evaporator coil
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
.
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
Where: h
ewb
= Enthalpy of air entering evaporator coil
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
.
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
559F240 (20 TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Evaporator Air Quantity — Cfm/BF
6,000/0.075 7,000/0.085 8,000/0.100 9,000/0.110 10,000/0.120
Evaporator Air — Ewb (F)
57 62 67 72 57 62 67 72 57 62 67 72 57 62 67 72 57 62 67 72
75
TC
209 222 246 270 219 228 251 277 227 231 256 282 234 235 259 286 240 240 262 289
SHC
209 190 160 130 219 205 171 136 227 219 182 143 234 231 193 149 240 240 203 156
kW
15.7 16.0 16.6 17.2 15.9 16.2 16.8 17.4 16.2 16.3 16.9 17.6 16.4 16.5 17.1 17.7 16.6 16.7 17.2 17.8
85
TC
203 214 237 261 212 220 242 267 220 224 246 272 227 227 250 276 233 233 252 279
SHC
203 186 157 126 212 201 168 133 220 215 179 140 227 226 189 147 233 233 200 153
kW
17.0 17.3 17.9 18.5 17.3 17.5 18.1 18.7 17.5 17.6 18.2 18.9 17.7 17.8 18.4 19.0 17.9 18.0 18.5 19.2
95
TC
197 207 228 252 206 211 233 257 213 215 237 261 220 220 239 265 225 225 241 267
SHC
197 182 153 123 206 196 164 130 213 210 175 136 220 219 185 143 225 225 195 149
kW
18.5 18.7 19.3 19.8 18.8 18.9 19.4 20.1 19.0 19.0 19.6 20.2 19.2 19.2 19.8 20.4 19.4 19.4 19.8 20.5
105
TC
190 197 218 241 198 202 222 246 206 205 226 250 212 212 228 254 217 216 230 255
SHC
190 178 149 119 198 192 160 126 206 204 171 133 212 211 181 139 217 216 191 145
kW
20.1 20.1 20.6 21.3 20.3 20.2 20.8 21.5 20.5 20.4 21.0 21.7 20.7 20.7 21.1 21.8 20.9 20.9 21.3 21.9
115
TC
183 188 207 228 191 192 211 233 198 197 215 237 203 203 217 240 208 207 218 242
SHC
183 173 145 117 191 187 156 122 198 197 166 128 203 203 177 135 208 207 186 141
kW
21.8 21.7 22.1 22.8 22.0 21.9 22.3 22.9 22.2 22.0 22.4 23.1 22.4 22.2 22.6 23.2 22.5 22.4 22.6 23.3
125
TC
175 178 196 217 183 182 200 221 189 188 202 224 194 194 204 226 199 198 206 227
SHC
175 168 141 111 183 181 152 117 189 188 162 125 194 194 172 130 199 198 181 137
kW
23.6 23.2 23.7 24.3 23.8 23.4 23.8 24.4 23.9 23.6 23.9 24.6 24.1 23.8 24.1 24.7 24.2 23.9 24.2 24.8
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
t
ldb
=t
edb
–
sensible capacity (Btuh)
1.10 x cfm
t
lwb
=
Wet-bulb temperature corresponding to
enthalpy of air leaving evaporator coil (h
lwb
)
h
lwb
=h
ewb
–
total capacity (Btuh)
4.5 x cfm
BYPASS FACTOR
(BF)
ENTERING AIR DRY-BULB TEMP (F)
79 78 77 76 75 under 75
81 82 83 84 85 over 85
Correction Factor
.05
1.04 2.07 3.11 4.14 5.18
Use formula
shown below.
.10
.98 1.96 2.94 3.92 4.90
.20
.87 1.74 2.62 3.49 4.36
.30
.76 1.53 2.29 3.05 3.82
559F300 (25 TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Evaporator Air Quantity — Cfm/BF
7,000/0.05 8,000/0.06 9,000/0.07 10,000/0.08 11,250/0.09
Evaporator Air — Ewb (F)
57 62 67 72 57 62 67 72 57 62 67 72 57 62 67 72 57 62 67 72
75
TC
256 271 298 328 266 277 304 334 275 281 308 339 283 286 312 342 292 293 316 346
SHC
255 232 195 158 266 250 208 167 275 265 223 177 283 279 235 184 292 291 249 197
kW
19.1 19.5 20.4 21.2 19.5 19.7 20.6 21.4 19.8 19.9 20.7 21.6 20.0 20.2 20.9 21.8 20.3 20.4 21.0 21.9
85
TC
248 262 287 317 259 267 294 324 268 272 298 330 275 278 303 334 283 284 306 337
SHC
248 227 191 155 259 244 203 162 268 259 216 170 275 271 226 177 283 283 243 189
kW
21.0 21.4 22.2 23.1 21.4 21.6 22.4 23.3 21.7 21.8 22.6 23.5 22.0 22.0 22.8 23.7 22.3 22.3 22.9 23.9
95
TC
242 252 277 306 251 258 283 312 260 261 288 317 267 267 291 321 275 274 294 326
SHC
242 223 187 150 251 240 199 158 260 254 210 165 267 263 222 172 275 274 236 181
kW
23.0 23.3 24.1 25.1 23.4 23.6 24.4 25.3 23.7 23.8 24.5 25.5 24.0 24.0 24.7 25.7 24.3 24.3 24.9 25.8
105
TC
234 241 266 293 243 247 272 299 251 252 275 302 258 257 279 307 265 264 282 311
SHC
234 218 182 146 243 233 195 153 251 246 205 161 258 255 217 167 265 264 230 175
kW
25.1 25.3 26.1 27.0 25.5 25.6 26.4 27.4 25.8 25.8 26.5 27.5 26.1 26.1 26.7 27.7 26.4 26.3 26.9 27.9
115
TC
226 231 254 279 235 236 259 284 242 241 261 288 248 247 264 291 255 253 267 294
SHC
226 212 178 141 235 228 189 148 242 238 201 156 248 247 211 162 255 253 225 170
kW
27.4 27.4 28.3 29.1 27.7 27.7 28.5 29.3 28.0 27.9 28.6 29.5 28.2 28.2 28.8 29.7 28.6 28.4 29.0 29.9
121
TC
221 224 246 — 229 229 251 — 236 235 253 — 242 240 256 — 249 246 258 —
SHC
221 209 175 — 229 223 186 — 236 233 197 — 242 240 208 — 249 246 221 —
kW
28.7 28.7 29.6 — 29.1 29.0 29.8 — 29.3 29.2 29.9 — 29.6 29.5 30.1 — 29.9 29.7 30.2 —
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
t
ldb
=t
edb
–
sensible capacity (Btuh)
1.10 x cfm
t
lwb
=
Wet-bulb temperature corresponding to
enthalpy of air leaving evaporator coil (h
lwb
)
h
lwb
=h
ewb
–
total capacity (Btuh)
4.5 x cfm
BYPASS FACTOR
(BF)
ENTERING AIR DRY-BULB TEMP (F)
79 78 77 76 75 under 75
81 82 83 84 85 over 85
Correction Factor
.05
1.04 2.07 3.11 4.14 5.18
Use formula
shown below.
.10
.98 1.96 2.94 3.92 4.90
.20
.87 1.74 2.62 3.49 4.36
.30
.76 1.53 2.29 3.05 3.82
0TFQ004-012
559F180-300
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