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BLOWER DATA
SL280DF080NV60C BLOWER PERFORMANCE (less filter)
0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range
Heating Speed
1
DIP Switch
Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
Cooling Speed
1
DIP Switch
Low
Settings
+
1090
Factory Default
990
–
890
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.
1
Factory default setting.
2
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.
®
SL280DF080NV60C BLOWER MOTOR WATTS (COOLING)
Cooling Speed
1
DIP Switch
Settings
0
0.1
+ Setting
Low
96
117 148 175 200 228 252 276 297 270 296 336 368 404 444 478 515 545 577 611
Med-Low 121 155 184 212 243 273 302 330 354 373 408 441 484 522 554 601 641 689 731 774
Cooling
Speed
Med-High 183 215 255 283 319 354 380 411 439 529 578 629 682 718 763 824 859 903 951 989
High
256 285 335 358 401 436 473 512 545 843 877 935 979 1036 1052 1058 1057 1047 1042 1035
Factory Default
Low
77
Med-Low 104 126 150 179 207 233 262 286 309 291 317 350 393 432 471 503 538 572 610 642
Cooling
Speed
Med-High 139 167 199 231 259 286 319 344 368 399 423 464 520 547 593 646 686 722 760 813
High
191 225 255 292 322 359 392 428 456 601 639 683 733 789 837 887 932 977 1018 1034
– Setting
Low
65
Med-Low 74
Cooling
Speed
Med-High 108 137 166 196 217 248 271 296 320 281 309 342 385 426 463 501 538 573 603 644
High
139 166 201 229 264 292 323 347 384 417 458 501 545 586 632 687 729 762 814 851
First Stage Heating Speed - cfm
1475
1385
1335
1255
1175
1100
1050
980
First Stage Cooling Speed - cfm
Medium-Low
Medium-High
1220
1110
995
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2
0.3
0.4
0.5
98
121 150 173 198 221 238 262 190 221 247 293 317 362 388 417 448 483 504
86
110 135 157 177 197 217 238 137 164 198 228 260 288 320 349 372 399 429
95
123 148 173 202 222 241 264 206 239 269 302 343 376 411 437 472 501 534
HEATING
COOLING
High
Low
2
1380
1575
1575
1250
1440
1400
1135
1300
1270
0.6
0.7
0.8
0
0.1
Page 4
Second Stage Heating Speed - cfm
1610
1515
1445
1360
1285
1195
1140
1045
Second Stage Cooling Speed - cfm
Medium-Low
Medium-High
1800
1600
1435
Second Stage
0.2
0.3
0.4
0.5
0.6
High
2
2000
2270
1820
2050
1635
1855
0.7
0.8
0.9
1.0
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