Lennox iComfort SL280UH070V36A - Page 29

Page 29
BLOWER DATA
SL280UH110V60C BLOWER PERFORMANCE (less lter)
SIDE RETURN AIR WITH OPTIONAL RETURN AIR BASE
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% 1635 1800
+18% 1555 1710
+12% 1475 1625
+6% 1395 1535
Factory Default 1320 1450
–6% 1240 1365
–12% 1160 1275
–18% 1080 1190
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
+ 1085 1160 1270 1490 1595 1660 1840 2115
Factory Default 1010 1040 1160 1375 1470 1535 1655 1940
– 900 955 1025 1205 1315 1365 1510 1735
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 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%, 38%, 70% and 100% of the selected second stage cooling speed - minimum 450 cfm.
Lennox Harmony III™ Zone Control Applications - Minimum blower speed is 450 cfm.
SL280UH110V60C 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 81 112 131 153 183 207 237 260 286 221 247 300 343 371 416 441 492 518 557 595
Med-low 87 120 144 171 201 227 261 291 317 245 279 326 369 405 441 488 527 557 605 642
Med-High 131 165 193 219 257 293 317 355 379 315 354 411 463 508 558 603 652 693 741 793
High 196 225 267 307 342 379 411 451 475 541 591 646 696 744 802 859 911 961 1007 1054
Factory Default
Cooling
Speed
Low 64 92 111 133 151 177 203 228 254 170 200 230 270
311 348 383 411 435 474 503
Med-low 72 99 123 144 164 198 224 246 270 196 220 268 304 334 372 399 446 471 500 538
Med-High 97 130 150 185 212 239 276 302 328 243 278 328 370 407 446 482 531 569 604 652
High 142 176 207 245 286 322 349 384 418 383 427 478 529 592 638 687 728 780 829 872
– Setting
Cooling
Speed
Low 53 74 93 113 133 153 175 194 215 115 147 176 207 248 277 310 346 376 403 432
Med-low 57 79 99 124 143 164 185 207 230 136 164 201 236 273 308 342 374 412 440 462
Med-High 81 109 133 151 173 205 224 254 280 184 214 247 290 329 365 402 431
466 489 530
High 101 135 162 191 224 258 292 320 345 272 317 355 396 446 488 529 574 612 650 707