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BLOWER DATA
SL280UH060NV36A 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
1
Heating Speed
DIP Switch
Settings
First Stage Heating Speed - cfm
Second Stage Heating Speed - cfm
+24%
1030
1140
+18%
965
1075
+12%
925
1020
+6%
870
965
Factory Default
825
915
–6%
775
865
–12%
735
810
–18%
685
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
+
595
715
815
920
845
1015
1175
1340
Factory Default
565
680
735
840
790
945
1070
1215
–
510
610
695
780
715
845
980
1120
SL280UH060NV36A 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
1
Heating Speed
DIP Switch
Settings
First Stage Heating Speed - cfm
Second Stage Heating Speed - cfm
+24%
985
1100
+18%
950
1050
+12%
875
1000
+6%
850
935
Factory Default
800
890
–6%
750
840
–12%
700
790
–18%
680
740
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
+
575
700
800
890
835
990
1145
1300
Factory Default
535
630
745
825
760
890
1020
1185
–
475
580
645
750
690
820
950
1055
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%, 38%, 70% and 100% of the selected second stage cooling speed - minimum 250 cfm.
Lennox iHarmony
®
Zoning System Applications - Minimum blower speed is 250 cfm.