Lennox SL280UHV series Unit Information

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BLOWER DATA
SL280UH070V36A BLOWER PERFORMANCE (less lter)
SINGLE SIDE RETURN AIR
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% 1050 1165
+18% 1000 1110
+12% 940 1040
+6% 895 975
Factory Default 820 935
–6% 775 855
–12% 735 805
–18% 685 750
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
+ 764 802 886 977 1035 1122 1248 1360
Factory Default 704 725 793 899 949 1029 1135 1257
– 642 680 717 812 874 933 1021 1133
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 e󰀨ect 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.
SL28UH070V36A 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 36 54 73 95 113 130 147 170 186 90 112 138 159 190 213 236 263 284 305 329
Med-Low 40 61 80 99 124 139 164 182 201 125 136 166 193 218 243 270 271 292 320 340
Med-High 52 74 98 116 140 162 182 207 226 163 181 217 246 274 311 331 358 382 410 430
High 77 100 123 144 165 187 213 234 259 236 259 290 327 354 381 413 448 467 496 519
Factory Default
Cooling
Speed
Low 22 42 63 74 98 119 135 158 174 68 90 107 134 157 175 202 222 239 260 286
Med-Low 30 49 68 83 111 126 139 160 184 86 109 135 153 178 204 232 258 273 292 321
Med-High 32 53 74 92 116 136 154 177 199 115 137 165 197 221 247 272 300 326 348 370
High 55 74 97 120 143 165 181 203 224 172 192 227 257 281 310 342 372 391 422 435
– Setting
Cooling
Speed
Low 17 31 48 69 82 97 111 131 146 48 67 89 110 129 152 172 194 215 231 251
Med-Low 22 43 57 74 84 109 130 140 163 62 84 103 124 151 173 196 212 233 258 277
Med-High 28 49 64 78 104 117 136 156 176 87 112 132 151 180 203 228 251 273 292 317
High 36 56 72 99 118 139 164 177 194 114 137 162 198 221 247 279 302 328 352 374

Lennox SL280UHV series Specifications

General

Brand	Lennox
Model	SL280UHV series
Category	Furnace
Language	English