Lennox SL297UH040NV36B, Unit Information

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BLOWER DATA
SL297UH040NV36B 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% 1151 1153
+18% 1101 1099
+12% 816 1041
+6% 771 999
Factory Default 704 944
–6% 651 887
–12% 578 826
–18% 542 757
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
+ 549 732 862 970 907 1072 1233 1373
Factory Default 521 637 760 873 830 975 1117 1268
– 441 560 684 784 736 874 1014 1142
SL297UH040NV36B 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% 863 1129
+18% 807 1087
+12% 761 1021
+6% 713 775
Factory Default 716 723
–6% 683 686
–12% 589 599
–18% 562 558
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
+ 554 705 841 958 868 1057 1217 1344
Factory Default 509 606 724 875 799 969 1109 1253
– 436 559 675 754 703 860 1002 1137
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.