Lennox SLP98UHV User Manual page 26

BLOWER DATA
SLP98UH090XV48C BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections
Increase (+15%) Heat CFM
Increase (+7.5%) Heat CFM
Default Heat CFM
Decrease (-7.5% ) Heat CFM
Decrease (-15% ) Heat CFM
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Increase (+10%) Cool CFM
Default Cool CFM
Decrease (-10%) Cool CFM
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%, 38%, 70% and 100% (DIP switch selectable) of the same second-stage COOL speed position
minimum 300 cfm.
Lennox Harmony III™ Zoning System Applications - Minimum blower speed is 380 cfm.
SLP98UH090XV48C BLOWER MOTOR WATTS - COOLING
Blower Speed
Options
0 0.1
Increase (+10%) Cool CFM
Low 50 67
Medium-Low 64 91
Medium-High 99 127 147 188 213 244 271 301 316 242 273 330 352 415 454 493 534 572 604 646
High 152 179 211 252 275 308 339 370 393 354 386 441 519 550 599 645 678 727 775 817
Default Cool CFM
Low 39 52
Medium-Low 55 83
Medium-High 75 100 132 148 174 212 231 259 280 196 228 271 305 329 370 399 448 475 514 545
High 111 139 167 201 232 258 299 316 343 271 306 362 396 446 506 535 575 617 663 701
Decrease (-10%) Cool CFM
Low 27 41
Medium-Low 47 62
Medium-High 57 85
High 79 105 135 162 182 220 238 271 296 206 242 284 319 363 385 424 467 520 541 581
SLP98UHV / Page 26
35%
769
713
656
595
534
First Stage Cool Speed - cfm
Low Medium-
Low
840 1005
780 915
690 835
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2 0.3 0.4 0.5 0.6
83 108 127 134 163 175 192 111 132 163 199 222 256 278 310 335 354 384
108 136 168 193 207 234 263 182 212 246 275 317 340 370 407 434 464 503
72 88 111 118 142 149 169
96 114 131 167 179 200 227 140 168 189 226 268 289 320 363 381 398 430
59 77 95 101 124 137 156
84 101 124 139 154 173 191 104 132 149 182 220 242 276 290 316 351 371
103 118 148 165 183 219 242 150 173 205 245 278 318 351 374 411 424 455
Heating Input Range and Blower Volume - CFM
40% 50% 60%
835 968 1101
776 902 1028
716 836 955
652 767 882
589 699 809
Blower Speed Selections
Medium High Low
High (Default)
1155 1315 1165
1045 1190 1075
955 1070 935
0.7 0.8 0 0.1 0.2
85 110 134 154 190 218 236 259 298 316 327
63 86 103 129 152 179 197 222 241 259 289
70% 80% 90%
1234 1367 1500
1155 1281 1407
1075 1195 1314
997 1112 1227
919 1029 1139
Second Stage Cool Speed - cfm
Medium- Medium
Low High
1375 1580
1265 1440
1145 1320
Second Stage
0.3 0.4 0.5 0.6 0.7
100%
1633
1534
1434
1342
1249
High
(Default)
1770
1645
1465
0.8 0.9 1.0