Lennox SL280UHNV Series User Manual

Page 16
BLOWER DATA
SL280UH060NV36A BLOWER PERFORMANCE (less fi lter)
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 fi lter)
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 specifi c 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.

Lennox SL280UHNV Series Specifications

General

Brand	Lennox
Model	SL280UHNV Series
Category	Furnace
Language	English