Lennox SL280UHV series Unit Information

Page 6
BLOWER DATA
SL280UH090V36B 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% 1305 1425
+18% 1250 1350
+12% 1195 1290
+6% 1135 1230
Factory Default 1070 1165
–6% 995 1100
–12% 935 1030
–18% 870 960
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
+ 611 731 830 971 995 1160 1274 1376
Factory Default 575 674 748 870 889 1075 1160 1270
– 519 604 691 786 808 952 1056 1147
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.
SL280UH090V36B 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 10 27 41 57 72 88 105 123 135 55 82 99 123 148 173 199 220 244 266 290
Med-Low 23 44 59 80 99 119 138 158 177 103 129 151 184 214 235 264 290 316 342 368
Med-High 37 56 75 95 114 135 153 174 189 147 167 205 230 264 285 317 347 365 394 423
High 54 81 95 120 144 170 191 217 234 189 219 249 273 312 339 379 404 431 459 485
Factory Default
Cooling
Speed
Low 8 24 34 50 70 83 96 110 124 39 63 85 105 131 147 174 193 214 243 264
Med-Low 16 36 50 68 86 106 121 144 159 73 92 123 148 173 203 221 249 266 297 317
Med-High 23 43 61 81 106 123 144 160 182 103 129 151 184 214 235 264 290 316 342 368
High 43 62 88 107 123 145 169 189 209 149 170 199 234 259 291 311 334 367 389 412
– Setting
Cooling
Speed
Low 4 18 29 45 59 74 86 98 113 31 52 67 92 113 129 156 175 197 209 232
Med-Low 11 29 44 58 79 93 111 129 141 50 76 97 116 141 159 185 206 235 250 282
Med-High 15 36 52 67 86 108 126 144 161 68 89 121 139 167 192 219 243 269 292 310
High 32 53 70 94 109 129 153 174 189 95 118 144 178 198 226 256 278 302 328 352

Lennox SL280UHV series Specifications

General

Brand	Lennox
Model	SL280UHV series
Category	Furnace
Language	English