Lennox iComfort SL280UH070V36A Manual page 18

BLOWER DATA
SL280UH070V36A BLOWER PERFORMANCE (less filter)
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 Speed
1
DIP Switch
Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
Cooling Speed
1
DIP Switch
Low
Settings
+ 764
Factory Default 704
– 642
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
1
Settings.
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%, 38%, 70% and 100% of the selected second stage cooling speed - minimum 250 cfm.
Lennox Harmony III™ Zone Control Applications - Minimum blower speed is 250 cfm.
SL28UH070V36A BLOWER MOTOR WATTS (COOLING)
Cooling Speed
1
DIP Switch
Settings
0 0.1
+ Setting
Low 36 54
Med-low 40 61
Cooling
Speed
Med-High 52 74
High 77 100 123 144 165 187 213 234 259 236 259 290 327 354 381 413 448 467 496 519
Factory Default
Low 22 42
Med-low 30 49
Cooling
Speed
Med-High 32 53
High 55 74
– Setting
Low 17 31
Med-low 22 43
Cooling
Speed
Med-High 28 49
High 36 56
First Stage Heating Speed - cfm
1050
1000
940
895
820
775
735
685
First Stage Cooling Speed - cfm
Medium-Low Medium-High
802 886
725 793
680 717
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2 0.3 0.4 0.5 0.6
73 95 113 130 147 170 186
80 99 124 139 164 182 201 125 136 166 193 218 243 270 271 292 320 340
98 116 140 162 182 207 226 163 181 217 246 274 311 331 358 382 410 430
63 74 98 119 135 158 174
68 83 111 126 139 160 184
74 92 116 136 154 177 199 115 137 165 197 221 247 272 300 326 348 370
97 120 143 165 181 203 224 172 192 227 257 281 310 342 372 391 422 435
48 69 82 97 111 131 146
57 74 84 109 130 140 163
64 78 104 117 136 156 176
72 99 118 139 164 177 194 114 137 162 198 221 247 279 302 328 352 374
HEATING
Second Stage Heating Speed - cfm
COOLING
Second Stage Cooling Speed - cfm
High Low
2
977 1035
899 949
812 874
0.7 0.8 0 0.1 0.2
90 112 138 159 190 213 236 263 284 305 329
68 90 107 134 157 175 202 222 239 260 286
86 109 135 153 178 204 232 258 273 292 321
48 67 89
62 84 103 124 151 173 196 212 233 258 277
87 112 132 151 180 203 228 251 273 292 317
Page 18
1165
1110
1040
975
935
855
805
750
Medium-Low Medium-High
1122 1248
1029 1135
933 1021
Second Stage
0.3 0.4 0.5 0.6 0.7
110 129 152 172 194 215 231 251
High
2
1360
1257
1133
0.8 0.9 1.0