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SL280DF060NV36B BLOWER PERFORMANCE (less filter)
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%
1065
1175
+18%
1010
1105
+12%
965
1055
+6%
910
990
Factory Default
855
930
–6%
795
880
–12%
745
820
–18%
695
760
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
+
730
780
840
960
1000
1090
1215
1350
Factory Default
665
705
760
870
910
990
1095
1220
–
600
635
685
765
810
885
985
1095
1 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.
2 Factory default setting.
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 380 cfm.
Lennox
®
Smart Zoning System Applications - Minimum blower speed is 380 cfm.
SL280DF060NV36B 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
51
65
86 106 125
148
160
179 196 89
116
143 177 193 224
251
269 297 321 350
Med-Low 58
71
98
115
133 157 177 190
215 112
146 174
200
232
261 288
317 338 372 394
Med-High
74
87
115
130
156
178 203
215
239
152
191
228 265
295 324 355 386 416 445 477
High
79
102
136
156 182
207
228 252
279 209 246 293 335 362 399 441 476
508
531 547
Factory Default
Cooling
Speed
Low
45
56
73
92 109
128
145
158
175 71
95
118
143
166 188 212
233
256
277 303
Med-Low
46
57
77
99 119 134
151 168 188 88
113 139 170 194
216
245
268
290 311 336
Med-High 58
70
90
111
134
152
169 191 213 133 146 176
205
230
260
289 320 345 370 406
High
66
87
106
129 147 174 198
216
239 154 191
228
263 294 332 360 391 413 447 475
– Setting
Cooling
Speed
Low
36
47
65
81
98 113 134 146
162 58
76
99
118
144
165
184
202
223 246 267
Med-Low
39
52
69
88 106
124 137
152
171 69
91
110
138
155
183 203 224 246 267 291
Med-High
41
55
75
96
111
131 147
168
187
86 111
139 167 189
216
240
265
289 313 341
High
51
64
89
106
130 153 169
185 211 111 150
189 217 244 270 295 327 348 374 405
BLOWER DATA