Lennox iComfort SL280UH070V36A, Unit Information

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BLOWER DATA
SL280UH090V60C BLOWER PERFORMANCE (less filter)
SINGLE SIDE RETURN AIR − Air volumes in bold require Optional Return Air Base and field fabricated transition to accommodate
20 x 25 x 1 in. air filter in order to maintain proper air velocity.
0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range
HEATING
1
Heating Speed
DIP Switch
Settings
First Stage Heating Speed - cfm Second Stage Heating Speed - cfm
+24% 1360 1500
+18%
1295 1425
+12% 1230 1355
+6% 1165 1280
Factory Default 1100 1210
–6% 1030 1135
–12% 965 1065
–18%
900 990
COOLING
1
Cooling Speed
DIP Switch
Settings
First Stage Cooling Speed - cfm Second Stage Cooling Speed - cfm
Low Medium-Low Medium-High
2
High Low Medium-Low Medium-High
2
High
+ 1050 1165 1335 1620 1515 1680 1915 2225
Factory Default 955 1060 1215 1480 1390 1545 1735 2060
– 840 945 1090 1290 1220 1385 1580 1825
1
Cooling and heating speeds are based on a combination of DIP switch settings on the furnace control. Refer to Installation Instructions for specific DIP Switch Settings.
2
Factory default setting.
NOTES - The effect of static pressure is included in air volumes shown.
First stage HEAT is approximately 91% of the same second stage HEAT.
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan Only speed is selectable at 28% and 38% of the selected second stage cooling speed - minimum 450 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 450 cfm.
SL280UH090V60C BLOWER MOTOR WATTS (COOLING)
1
Cooling Speed
DIP Switch
Settings
Motor Watts @ Various External Static Pressures - in. wg.
First Stage Second Stage
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
+ Setting
Cooling
Speed
Low 75 104 122 142 163 189 214 239 264 219 243 283 317 363 384 424 441 484 511 543
Med-Low 98 128 150 181 205 236 259 289 317 289 333 351 405 444 490 523 564 604 636 668
Med-High 144 172 205 242 279 306 344 367 396 417 451 507 557 605 655 694 733 788 824 867
High 245 272 307 359 386 421 447 473 520 709 743 795 855 906 955 1009 1049 1095 1131 1165
Factory Default
Cooling
Speed
Low 66 88 109 127 150 165 189 209 236 157 185 219 259 290 328 353 394 425 452 480
Med-Low 79 104 127 147 173 201 225 248 268 222 246 284 328 370 397 416 460 490 519 555
Med-High 106 137 164 190 215 250 278 307 333 307 349 387 435 463 505 553 599 634 674 714
High 192 224 260 298 338 365 400 438 467 563 597 664 717 756 820 881 907 972 1007 1039
– Setting
Cooling
Speed
Low 44 65 80 103 121 142 163 180 199 114 141 173 200 230 259 289 318 347 374 401
Med-Low 63 82 105 125 145 166 188 203 227 159 187 226 252 288 323 353 388 419 444 475
Med-High 82 108 131 151 178 203 229 253 274 236 263 302 344 382 420 443 478 514 548 583
High 127 159 187 213 252 281 305 338 371 361 393 450 494 537 586 616 672 711 752 787