Lennox SL280UHV series Unit Information

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BLOWER DATA
SL280UH090V60C BLOWER PERFORMANCE (less lter)
BOTTOM RETURN AIR, RETURN AIR FROM BOTH SIDES OR RETURN AIR FROM BOTTOM AND ONE SIDE
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% 1420 1565
+18% 1355 1490
+12% 1285 1415
+6% 1215 1335
Factory Default 1145 1260
–6% 1080 1185
–12% 1010 1110
–18% 940 1035
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
+ 1110 1205 1420 1680 1575 1740 2000 2305
Factory Default 1005 1100 1280 1545 1440 1595 1820 2125
– 890 1015 1125 1380 1295 1450 1610 1930
1
Cooling and heating speeds are based on a combination of DIP switch settings on the furnace control. Refer to Installation Instructions for specic DIP Switch Settings.
2
Factory default setting.
NOTES - The e󰀨ect 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 89 113 136 159 182 204 228 251 275 218 245 291 327 372 398 436 474 505 532 579
Med-Low 104 133 163 184 214 245 266 304 328 298 333 382 412 450 488 541 576 612 648 681
Med-High 162 191 227 262 294 333 354 391 422 440 476 527 576 636 686 741 777 820 857 892
High 279 316 355 394 432 473 509 547 584 772 808 877 946 1000 1056 1089 1146 1190 1255 1266
Factory Default
Cooling
Speed
Low 70 92 108 134 159 174 196 215 242 160 195 228 265 291 340 364 397 442 469 500
Med-Low 89 115 135 156 185 207 227 250 281 241 267 305 347 384 413 445 477 519 542 573
Med-High 122 149 183 206 234 269 297 324 350 330 370 414 452 500 542 593 634 675 702 747
High 214 241 277 318 350 388 423 449 469 553 591 655 713 781 819 868 922 967 1026 1066
– Setting
Cooling
Speed
Low 54 70 91 110 129 154 166 185 200 107 151 177 206 245 272 298 332 398 423 449
Med-Low 73 94 112 135 151 175 189 214 235 173 201 244 272 304 337 368 393 437 465 498
Med-High 93 120 141 160 191 221 244 261 288 246 271 310 353 395 433 466 492 528 557 593
High 149 185 217 251 284 314 352 386 422 410 456 505 543 595 635 692 729 777 829 867

Lennox SL280UHV series Specifications

General

Brand	Lennox
Model	SL280UHV series
Category	Furnace
Language	English