Page 6
BLOWER DATA
ML296UH090XV48C BLOWER PERFORMANCE (less lter)
BOTTOM RETURN AIR, SINGLE SIDE RETURN AIR OR 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
“ADJUST”
Switch
Positions
Speed Switch Positions
Second Stage “HEAT” Speed - cfm Second Stage “COOL” Speed - cfm
D C
1
B A D C B
1
A
+ 1205 1290 1330 1555 1135 1355 1525 1765
1
NORM 1075 1155 1200 1410 1080 1270 1435 1655
— 970 1040 1085 1250 940 1115 1255 1460
“ADJUST”
Switch
Positions
First Stage “HEAT” Speed - cfm First Stage “COOL” Speed - cfm
D C
1
B A D C B
1
A
+ 1125 1205 1245 1475 830 985 1095 1260
1
NORM 1040 1110 1135 1345 765 920 1040 1195
— 935 1000 1030 1210 675 795 900 1040
1
Factory default jumper setting.
NOTES - The eect of static pressure is included in air volumes shown.
First stage HEAT is approximately 95% of the same second stage HEAT speed position.
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 approximately 38% of the same second stage COOL speed position.
Lennox Harmony III™ Zoning System Applications - Minimum blower speed is 380 cfm.
ML296UH090XV48C BLOWER MOTOR WATTS (COOLING)
Jumper Speed
Positions
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
“+” (Plus) SETTING (“Adjust” Jumper at “+” Setting)
“COOL”
Speed
Tap D 48 71 94 117 144 164 186 207 234 110 135 165 194 219 243 274 299 330 351 378
Tap C 71 94 121 146 169 193 214 245 266 179 208 240 270 302 329 361 392 422 449 481
Tap B 98 122 154 174 204 228 260 282 305 250 284 314 351 382 412 451 484 517 550 578
Tap A 146 174 202 229 262 286 315 343 372 405 441 481 514 550 584 623 659 701 735 768
“NORM” (Normal) SETTING (“Adjust” Jumper at “NORM” Setting)
“COOL”
Speed
Tap D 44 67 86 105 125 145 169 186 211 105 130 154 178 199 225 250 273 297 324 345
Tap C 65 87 110 131 153 176 197 221 241 158 187 213 242 265 290 314 346 371 404 430
Tap B 90 114 140 163 182 209 229 257 281 215 248 273 301 330 358 380 412 451 473 507
Tap A 133 156 183 208 232 254 278 304 332 335 368 397 428 459 491 519 552 582 611 652
“—” (Minus) SETTING (“Adjust” Jumper at “—” Setting)
“COOL”
Speed
Tap D 23 43 66 88 109 132 152 170 193 67 93 116 139 164 194 218 239 264 286 315
Tap C 38 59 84 109 133 156 176 199 223 110 134 164 187 215 242 268 295 322 346 366
Tap B 55 79 102 131 155 177 207 223 252 143 170 196 230 255 284 311 338 369 394 419
Tap A 85 113 138 162 188 215 242 266 294 220 254 283 315 345 376 416 447 475 510 535