Blower Data - Lennox SL280UHV Series Unit Information

BLO WER DATA
SL280UH070V36A BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR
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
+ 781
Factory Default 695
– 645
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 250 cfm.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 250 cfm.
®
SL280UH070V36A BLOWER MOTOR WATTS (COOLING)
Cooling Speed
1
DIP Switch
Settings
0 0.1
+ Setting
Low 32
Med-Low 43
Cooling
Speed
Med-High 53
High 77 101 123 148 175 194 218 242 266 259 282 318 339 375 402 430 457 489 507 536
Factory Default
Low 26
Med-Low 27
Cooling
Speed
Med-High 37
High 60
– Setting
Low 19
Med-Low 23
Cooling
Speed
Med-High 24
High 38
First Stage Heating Speed - cfm
1045
985
940
880
850
785
745
680
First Stage Cooling Speed - cfm
Medium-Low Medium-High
819
734
674
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2 0.3 0.4 0.5
55 70 94 111 131 152 174 194 100 123 144 170 196 232 260 266 299 306 343
66 87 103 128 147 167 190 217 134 153 185 211 241 266 291 316 342 367 384
74 97 120 143 165 184 209 228 181 198 234 261 289 316 342 367 390 411 436
44 61 78 94 114 138 152 163
49 66 83 106 126 147 169 182
57 78 104 122 138 167 186 203 127 150 173 207 237 267 288 313 340 360 390
85 101 123 148 167 193 211 236 197 218 249 277 306 333 358 388 412 434 454
34 54 69 86 105 119 144 149
41 56 75 90 112 132 144 159
45 63 82 102 121 139 161 183
59 81 104 123 145 170 188 208 136 158 190 213 236 268 290 318 339 367 390
HEATING
COOLING
High Low
2
872 981 1045
797 883 943
720 815 847
0.6 0.7 0.8 0 0.1
66 86
87 107 134 158 182 206 232 258 274 302 319
45 66
61 86
84 107 139 153 178 204 234 259 280 304 325
Page 3
Second Stage Heating Speed - cfm
1145
1080
1035
960
925
875
815
745
Second Stage Cooling Speed - cfm
Medium-Low Medium-High
1139
1005
922
Second Stage
0.2 0.3 0.4 0.5 0.6
112 139 160 174 199 223 247 270 296
91 105 138 150 176 189 213 237 266
103 132 150 172 193 217 233 262 291
High
2
1219 1372
1114 1260
991 1144
0.7 0.8 0.9 1.0