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BLOWER DATA
SLP99DF090XV60C BLOWER PERFORMANCE (less filter)
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Heating Input Range and Blower Volume - CFM
35%
40%
50%
60%
70%
80%
90%
100%
Increase (+15%) Heat CFM
653
728
877
1027
1176
1326
1475
1625
Increase (+7.5%) Heat CFM
603
673
813
953
1092
1232
1372
1512
Default Heat CFM
553
618
748
878
1009
1139
1269
1399
Decrease (-7.5% ) Heat CFM
510
570
690
811
931
1051
1171
1292
Decrease (-15% ) Heat CFM
467
522
632
743
853
963
1074
1184
The effect of static pressure is included in air volumes shown.
The following control configurations are available. See Installation Instructions for details and DIP switch settings.
Heat Modes Available (Heating Blower Performance Table):
Single-stage thermostat:
- 35%, 70%, 100% input (three-stage) with time delays in-between
Two-stage thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts firing rate based on first- and second-stage cycle times.
- W1 demand at 70% input, W2 demand at 100% input. No delay between stages.
Cool Mode Available (Cooling Blower Performance Table):
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan speeds are approximately 28% and 38% (DIP switch selectable) of the same second-stage COOL speed position minimum 250 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 450 cfm.
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Blower Speed Selections
First Stage Cool Speed - cfm
Second Stage Cool Speed - cfm
Low
Medium-
Low
Medium
High
High
(Default)
Low
Medium-
Low
Medium
High
High
(Default)
Increase (+10%) Cool CFM
1110
1265
1395
1600
1600
1750
1965
2130
Default Cool CFM
1000
1145
1275
1445
1445
1625
1805
1975
Decrease (-10%) Cool CFM
885
1060
1145
1265
1265
1445
1645
1805
SLP99DF090XV60C BLOWER MOTOR WATTS - COOLING
Blower Speed
Options
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
Increase (+10%) Cool CFM
Low 79 108 144 162 207 242 262 293 323 275 299 366 399 449 483 532 584 605 644 680
Medium-Low 120 156 187 233 261 279 329 368 401 387 409 471 521 562 606 650 688 716 762 800
Medium-High 155 202 235 293 317 369 407 453 502 547 577 622 667 744 795 835 872 910 950 963
High 268 299 366 399 449 483 532 584 605 780 775 811 898 942 994 1048 1071 1082 1080 1073
Default Cool CFM
Low 56
86 111 140 170 200 232 259 282 186 219 270 308 361 390 431 489 517 555 590
Medium-Low 93 118 152 195 223 254 283 306 344 278 304 365 420 450 510 544 592 640 665 698
Medium-High 123 161 201 228 260 310 341 381 416 446 475 528 582 616 662 686 747 780 823 855
High 182 219 270 308 361 390 431 489 517 576 603 654 704 756 809 871 902 939 972 975
Decrease (-10%) Cool CFM
Low 48
69 101 120 152 175 201 218 249 118 155 181 232 259 299 340 376 402 438 476
Medium-Low 65
94 123 150 185 220 250 278 296 177 205 267 304 353 390 430 486 515 563 587
Medium-High 93 118 152 195 223 254 283 306 344 301 322 392 439 468 531 568 599 647 678 721
High 116 155 181 232 259 299 340 376 402 446 475 528 582 616 662 686 747 780 823 855