Lennox SL280UHNV Installation Instructions Manual page 36

BLOWER DATA
SL280UH080NV60C BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR, RETURN AIR FROM BOTH SIDES OR RETURN AIR FROM BOTTOM AND ONE SIDE
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
+ 1080
Factory Default 975
– 880
BLOWER DATA
SL280UH100NV60C BLOWER PERFORMANCE (less filter)
BOTTOM RETURN AIR, RETURN AIR FROM BOTH SIDES OR RETURN AIR FROM BOTTOM AND ONE SIDE
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
+
1200
Factory Default
1075
– 1010
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 450 cfm.
Lennox iHarmony Zoning System Applications - Minimum blower speed is 450 cfm.
®
First Stage Heating Speed - cfm
1375
1330
1260
1185
1130
1050
980
940
First Stage Cooling Speed - cfm
Medium-Low Medium-High
1235 1410
1125 1290
1010 1165
First Stage Heating Speed - cfm
1745
1670
1580
1500
1425
1310
1260
1190
First Stage Cooling Speed - cfm
Medium-Low Medium-High
1250 1380
1150 1275
1050 1150
HEATINg
Second Stage Heating Speed - cfm
COOLINg
Second Stage Cooling Speed - cfm
High Low
2
1655 1540
1500 1390
1360 1265
HEATINg
Second Stage Heating Speed - cfm
COOLINg
Second Stage Cooling Speed - cfm
High Low
2
1585 1710
1460 1570
1320 1410
Page 36
1530
1450
1390
1315
1235
1165
1090
1020
Medium-Low Medium-High
1745 2000
1595 1815
1440 1630
1930
1825
1740
1655
1565
1470
1390
1300
Medium-Low Medium-High
1790 1950
1610 1785
1480 1625
High
2
2300
2130
1930
High
2
2270
2065
1880