Blower Performance Data - Lennox SL280UHNV Installation Instructions Manual

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
1 Heating Speed
DIP Switch Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
1 Cooling Speed
DIP Switch Settings
Low
+ 595
Factory Default 565
– 510
SL280UH080NV48B 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 Speed
1
DIP Switch
Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
Cooling Speed
1
DIP Switch
Low
Settings
+
640
Factory Default 590
– 545
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.
1
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% and 38% of the selected second stage cooling speed - minimum 280 for SL280UH060NVA and 380 cfm for
SL280080NV48B.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 250 cfm for SL280UH060NV36A and 380 cfm SL280UH080NV48B.
®
First Stage Heating Speed - cfm
1030
965
925
870
825
775
735
685
First Stage Cooling Speed - cfm
Medium-Low Medium-High
715 815
680 735
610 695
First Stage Heating Speed - cfm
1350
1270
1200
1130
1060
970
880
845
First Stage Cooling Speed - cfm
Medium-Low Medium-High
870 1030
770 925
635 750
HEATING
COOLING
2 High Low
920 845
840 790
780 715
HEATINg
Second Stage Heating Speed - cfm
COOLINg
Second Stage Cooling Speed - cfm
High Low
2
1200 1020
1100 935
960 815
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Second Stage Heating Speed - cfm
1140
1075
1020
965
915
865
810
760
Second Stage Cooling Speed - cfm
Medium-Low Medium-High
1015 1175
945 1070
845 980
1500
1420
1340
1270
1190
1130
1025
950
Medium-Low Medium-High
1310 1535
1200 1400
1080 1260
2 High
1340
1215
1120
High
2
1750
1600
1430