Table of Contents
Advertisement
BLOWER DATA
SL280UH110V60C 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 Speed
1
DIP Switch
Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
Cooling Speed
1
DIP Switch
Low
Settings
+
1020
Factory Default
940
–
835
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.
®
SL280UH110V60C BLOWER MOTOR WATTS (COOLING)
Cooling Speed
1
DIP Switch
Settings
0
0.1
+ Setting
Low
84
116 131 156 193 216 238 265 292 218 245 293 336 378 415 454 488 516 557 601
Med-Low 99
128 156 195 216 245 280 309 335 292 333 381 412 454 490 535 577 618 662 704
Cooling
Speed
Med-High 128 157 193 226 266 293 321 360 387 373 412 475 518 573 617 661 710 771 800 857
High
238 274 303 354 388 413 460 493 524 675 717 786 854 898 983 1017 1071 1112 1157 1186
Factory Default
Low
73
Med-Low 81
108 133 156 175 207 230 253 285 220 248 290 328 372 405 447 474 513 540 577
Cooling
Speed
Med-High 92
123 148 185 209 246 277 302 331 290 328 374 415 452 487 536 576 605 653 701
High
175 202 247 285 327 364 388 426 457 477 511 590 647 690 739 789 843 901 947 998
– Setting
Low
56
Med-Low 69
Cooling
Speed
Med-High 78
107 128 149 172 203 230 249 278 204 225 282 312 353 383 406 452 489 519 552
High
124 157 186 220 261 291 321 352 386 326 372 427 464 526 566 608 658 706 762 808
First Stage Heating Speed - cfm
1640
1560
1480
1400
1325
1245
1165
1085
First Stage Cooling Speed - cfm
Medium-Low
Medium-High
1160
1050
945
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2
0.3
0.4
0.5
96
121 140 154 184 206 228 255 166 192 237 271 319 345 382 419 459 480 515
74
98
116 141 157 179 199 216 129 157 198 221 259 298 325 354 387 418 451
92
111 132 155 174 197 214 243 166 186 232 268 289 339 365 389 429 454 479
HEATING
COOLING
High
Low
2
1285
1550
1505
1155
1400
1375
1020
1250
1235
0.6
0.7
0.8
0
0.1
Page 13
Second Stage Heating Speed - cfm
1805
1715
1630
1545
1455
1370
1280
1195
Second Stage Cooling Speed - cfm
Medium-Low
Medium-High
1690
1525
1380
Second Stage
0.2
0.3
0.4
0.5
0.6
High
2
1855
2125
1935
1685
1505
1730
0.7
0.8
0.9
1.0
Advertisement
Table of Contents
